设计范例报告 标题 使用LYTSwitchTM -4 LYT4324E设计的20 W高效 率(>86%)、可控硅调光、带功率因数校正的隔离 反激式LED驱动器 规格 185 VAC – 265 VAC输入； 36 VTYPICAL，550 mA输出 应用 PAR38替换灯 作者 应用工程部 文档编号 DER-396 日期 2013年9月25日 修订版本 1.0 特色概述 • • • • • • • • • • 单级功率因数校正(PFC)及精确恒流(CC)输出(+5%) 在230 VAC下，PF > 0.9 在230 VAC下，%A THD <20% 在不同生产环境下和过热范围内具有一致的调光性能 低成本、元件数量少、印刷电路板(PCB)占板面积小的设计 极高能效，在230 VAC输入下效率>86 % 快速启动时间(<250 ms) – 无可见延迟 干净的单向启动 – 无输出闪烁 集成的保护及可靠性能 • 空载保护，短路保护 • 更大迟滞的自动恢复热关断可同时保护元件和印刷电路板 • 在AC电压缓降期间不会造成任何损坏 满足IEC 2.5 kV振铃波、500 V差模输入浪涌和EN55015传导EMI要求 专利信息 此处介绍的产品和应用（包括产品之外的变压器结构和电路）可能包含一项或多项美国及国外专利，或正在申请的美国或国外专利。有关 Power Integrations专利的完整列表，请参见www.powerint.com。Power Integrations按照在<http://www.powerint.com/ip.htm>中所述规定， 向客户授予特定专利权利的许可。 Power Integrations 5245 Hellyer Avenue, San Jose, CA 95138 USA. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 目录 1 2 3 简介 ............................................................................................................................ 4 装配后的PCB板 .......................................................................................................... 5 电源规格 ..................................................................................................................... 7 3.1 电路原理图 .......................................................................................................... 8 4 电路描述 ..................................................................................................................... 9 4.1 输入级.................................................................................................................. 9 4.2 衰减电路级 .......................................................................................................... 9 4.3 LYTSwitch-4初级 ............................................................................................... 10 4.4 输出反馈 ............................................................................................................ 11 4.5 负载断开保护 ..................................................................................................... 11 4.6 过载和短路保护 ................................................................................................. 11 5 PCB布局轮廓 ............................................................................................................ 12 6 物料清单(BOM)......................................................................................................... 13 7 变压器(T1)规格 ......................................................................................................... 15 7.1 电气原理图 ........................................................................................................ 15 7.2 电气规格 ............................................................................................................ 15 7.3 材料 ................................................................................................................... 15 7.4 结构图................................................................................................................ 16 7.5 绕制 ................................................................................................................... 16 8 差模电感(L1)规格...................................................................................................... 18 8.1 结构图................................................................................................................ 18 8.2 电气规格 ............................................................................................................ 18 8.3 材料 ................................................................................................................... 18 8.4 结构图................................................................................................................ 19 8.5 绕制 ................................................................................................................... 19 9 U1散热片 .................................................................................................................. 20 9.1 U1散热片加工图 ................................................................................................ 20 9.2 U1散热片装配图 ................................................................................................ 21 9.3 散热片和U1装配图 ............................................................................................. 22 10 变压器设计表格 ..................................................................................................... 23 11 性能数据................................................................................................................ 26 11.1 带载模式效率 ................................................................................................. 27 11.2 线电压调整 ..................................................................................................... 28 11.3 功率因数 ........................................................................................................ 29 11.4 %THD ................................................................................................................ 30 11.5 谐波含量 ........................................................................................................ 31 11.6 谐波测量 ........................................................................................................ 32 11.7 调光特性 ........................................................................................................ 33 11.8 参考设计与调光器的兼容性 ............................................................................ 36 Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第2页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 12 热性能 ...................................................................................................................37 13 波形 .......................................................................................................................39 13.1 漏极电压和电流，正常工作 ............................................................................39 13.2 漏极电压和电流启动特征 ................................................................................39 13.3 输出电压启动特征 ..........................................................................................40 13.4 输入与输出电压和电流的波形.........................................................................40 13.5 漏极电压和电流波形：正常工作到输出短路 ...................................................41 13.6 漏极电压和电流波形：输出短路时启动 ..........................................................42 13.7 空载工作 .........................................................................................................42 13.8 交流电循环上电 ..............................................................................................43 13.9 调光波形 .........................................................................................................44 13.10 输入浪涌波形..................................................................................................56 13.10.1 差模输入浪涌 ..........................................................................................56 13.10.2 差模振铃浪涌 ..........................................................................................56 14 输入浪涌 ................................................................................................................57 15 传导EMI.................................................................................................................58 15.1 设备 ................................................................................................................58 15.2 EMI测试设置 ......................................................................................................58 15.3 EMI测试结果 ......................................................................................................59 16 版本历史 ................................................................................................................61 重要说明： 虽然本电路板的设计满足非隔离LED驱动器安全要求，但工程原型尚未获得机构认证。 因此，必须使用隔离变压器向原型板提供AC输入，以执行所有测试。 第3页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 1 简介 本文档是一份工程报告，介绍使用LYTSwitch-4高压系列器件LYT4324E设计的一款隔 离式、高功率因数、可调光LED驱动器（电源）。 DER-396能够在185至265 VAC的输入电压范围内提供一路20 W (36 VTYPICAL)、可调光的 550 mA恒流输出。 主要设计目标是实现高效率，以提升发光效率并减小尺寸。这样可使驱动器装入BR38灯并 尽可能接近可投产设计。 LYTSwitch-4 IC可用来实现具有成本效益的低元件数LED驱动器，同时使设计满足功率因数 和谐波失真限值。LYTSwitch-4驱动器IC将PFC功能和次级输出恒流控制电路同时集成到 一个开关级中。 所使用的拓扑结构是运行于连续导通模式下的隔离反激。输出电流调整完全从初级侧实 现，因此无需使用次级反馈元件。在初级侧也无需检测外部电流，而是在IC内部进行，可 进一步降低元件成本并提高效率。内部控制器调整功率MOSFET占空比以保持输入电流为正 弦交流电，同时确保高功率因数和低谐波电流控制。 LYT4324E也可提供各种复杂的保护功能，包括环路开环或输出短路条件下自动重启动。 输入过压可提供增强的抗输入故障和浪涌能力，输出过压可保护负载应当断开的电源， 精确的迟滞热关断可确保在所有条件下平均PCB温度都处于安全范围内。 在任何LED照明装置中，驱动器的性能直接决定了最终用户对照明的感受，包括启动时 间、调光性能和驱动器之间的一致性。该设计经过优化，可确保兼容各种调光器和更宽的 调光范围。 本文档包括电源规格、电路原理图、物料清单、变压器规格文件、印刷电路板布局、设计 表格及性能数据。 Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第4页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 2 装配后的PCB板 Figure 1 – Populated Circuit Board (Top Side). Figure 2 – Populated Circuit Board (Bottom Side). 第5页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 Figure 3 – Populated Circuit Board. Dimensions: 2.68 in [68.1 mm] L x 1.32 in [33.6 mm] W x 1 in [25.4 mm] H. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第6页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 3 电源规格 下表所列为设计的最低可接受性能。实际性能可参考测量结果部分。 说明 输入 电压 频率 功率因数 %ATHD 输出 输出电压 输出电流 总输出功率 连续输出功率 效率 额定 符号 VIN fLINE 最小值 典型值 最大值 185 47 230 50/60 0.9 265 63 单位 备注 VAC Hz 双导线 – 无P.E. 在230 VAC下 17 VOUT IOUT 33 522 36 550 39 577 V mA POUT 20 W η 86 % 在230 VAC下 在POUT 25 oC及 230 VAC条件下测得 环境 传导EMI 满足CISPR22B/EN55015要求 输入浪涌 差模(L1-L2) 500 V 振铃波(100 kHz) 差模(L1-L2) 2.5 kV 第7页（共62页） 1.2/50 μs浪涌，IEC 1000-4-5， 串联电阻： 差模：2 Ω 2 Ω短路 串联电阻 Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 3.1 25-Sep-13 电路原理图 Figure 4 – Schematic for 36 V, 550 mA Replacement Lamp. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第8页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 4 电路描述 LYTSwitch-4 (U1) 系 列 器 件 是 一 系 列 适 用 于 LED 驱 动 器 应 用 的 高 集 成 度 电 源 IC 。 LYTSwitch-4能够在单级转换拓扑结构中提供高功率因数，同时特别对LED驱动器应用中 常见的各种输入(185 VAC-265 VAC)和输出电压条件下的输出电流进行调节。 4.1 输入级 保险丝F1提供元件故障保护。需要使用一个额定值5 A的快速恢复二极管来防止在输入浪涌 下误开路。压敏电阻RV1提供箝位功能，用以限制在差模输入电压浪涌期间的最大电压。 RV1的额定电压为275 VAC，略高于最大指定工作电压(265 VAC)。LYTSwitch-4的快速反 应输入过压检测与D2和C6峰值检测电容一起提供箝位功能，用以限制在IC的功率MOSFET 上出现最大电压应力。此外，在差模输入浪涌期间（通过RC高通滤波器 - R7、R8和C2 检测到高dv/dt），Q2将关断Q3，与输入电流（在阻尼电阻R11中将增大）成正比的电压将 从输入端减去。这有助于限制出现在U1漏极的电压应力。电阻R9从C2泄放电荷，并确保 Q2在正常工作期间处于关断状态。 差模扼流圈L1是用来抑制噪声的前端EMI滤波器。电阻R3可在必要时衰减EMI滤波器的 谐振。 BR1对AC输入进行全波整流以获得良好的功率因数和低THD。 电容C4、C5和共模扼流圈L2形成位于桥式整流管后面的EMI滤波器。滤波电容受到限制， 可维持较高的功率因数。该输入π滤波器网络与LYTSwitch-4的频率调制特性相结合，可使 设计满足Class B干扰限值。电阻R12可在必要时衰减EMI滤波器的谐振，从而防止当在系 统（驱动器加外壳）中测量时EMI频谱中出现峰值。 4.2 衰减电路级 为了用低成本的可控硅前沿相控调光器提供输出调光，我们需要在设计时进行全面权衡。 由于LED照明的功耗非常低（相对于传统的白炽灯泡），灯所吸收的电流要小于调光器 内可控硅的维持电流。这样会因为可控硅触发不一致而产生某些不良情况，比如调光范围 受限和/或闪烁。由于LED灯的阻抗相对较大，因此在可控硅导通时，浪涌电流会对输入 电容进行充电，产生很严重的振荡。这同样会造成类似不良情况，因为振荡会使可控硅电 流降至零（并关断可控硅）。要克服这些问题，需增加两个电路 – 有源衰减电路和无源泄 放电路。这些电路的缺点是会增大功耗，进而降低电源的效率。对于非调光应用，可以省 略这些元件。 第9页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 有源衰减电路由元件R4、R5、R6、R10、D1、Q1、C3、VR1和Q3以及R11共同组成。 该电路可以限制可控硅导通时流入C3并对其充电的浪涌电流，实现方式是在导通前1 ms内 将R11串联。在大约1 ms后，Q3导通并将R11短路。这样可使R11的功耗保持在低水平， 在限流时可以使用更大的值。电阻R4、R5、R6和C3在可控硅导通后提供1 ms延迟。晶体 管Q1在可控硅不导通时对C3进行放电，VR1将Q3的栅极电压箝位在15 V，R10用于防止 MOSFET发生振荡。当无可控硅连接时，Q3将保持导通，从而旁通R11以提高效率。 无源RC泄放电路（C1、R1、R2、R27和R28）就位于保险丝后面，用来通过EMI电感降 低调光期间的浪涌电流，进而降低音频噪声。使用了四个泄放电阻来分割功耗（特别是调 光器处在90º导通角时），以便获得紧凑外形。这样可以使输入电流始终大于可控硅的维持 电流，而与驱动器相应的输入电流将在每个AC半周期内增大，防止每个导通角期间的起始 阶段出现可控硅的开关振荡。 4.3 LYTSwitch-4初级 变压器(T1)一端连接到DC总线，另一端连接到LYTSwitch-4 IC的漏极(D)引脚。在功率 MOSFET的导通时间内，初级绕组中的电流升高，存储的能量随后在功率MOSFET关断时 间内传送到输出。本设计选用RM7磁芯，因为它在板上占用的面积很小。由于骨架达不到 230 VAC工作条件下的6.2 mm的安全爬电距离要求，因此使用飞线将次级绕组端接到PCB 板中。 为向U1提供峰值输入电压信息，经整流AC的输入峰值经由D2对C6充电。然后电流经过 R14和R15，注入U1的电压监测(V)引脚。电阻容差将会导致不同电源之间的V引脚电流有 所差异，因此选择1%误差的电阻可以将这种变化降至最低。器件也会利用V引脚电流来设 定输入过压阈值。电阻R13为C6提供放电通路，时间常数远大于经整流AC的放电时间，以 防止V引脚电流被线电压频率所调制。 V引脚电流和反馈(FB)引脚电流在内部用来控制LED平均输出电流。可在R引脚(R18)和V引 脚上分别使用24.9 kΩ电阻和 4 MΩ (R14+R15)电阻，使输入电压和输出电流保持线性关 系，从而获得最大调光范围。 在功率MOSFET导通期间，在C5上的电压降到反射输出电压(VOR)以下时，需要使用二极 管D4来防止反向电流流经U1。在瞬态工作期间，由于漏感会带来影响，VRCD缓冲电路二 极管D3、VR4和C7将漏极电压箝位到一个安全水平。 Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第10页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 二极管D6、C9、C11、R21和R22构成初级偏置供电，能量来自变压器的辅助绕组。电容 C8对U1的旁路(BP)引脚进行局部去耦，该引脚是内部控制器的供电引脚。在启动期间， C8从与漏极引脚相连的内部高压电流源被充电至约6 V。此时器件开始开关，器件的供电 电流再由偏置供电经过R19提供。二极管D5隔离BP引脚和C8，以防止启动时间由于对C9 和C11的充电而延长。 建议使用外部偏置供电（通过D5和R19），以实现最低的器件功耗、最高的效率和更佳的 调光性能。 电容C8同时用来选择输出功率模式，选择100 μF用于减功率模式，可以将器件功耗减至最 低，降低对散热片的要求。虽然47 μF是最小建议旁路电容值，但在使用SMD陶瓷电容 时，建议采用68 μF – 100 μF / X5R的值以留出电容容差。 4.4 输出反馈 偏置绕组电压用来间接地反映输出电压的高低，而无需使用次级侧反馈元件。偏置绕组上 的电压与输出电压成比例（由偏置绕组与次级绕组之间的匝数比决定）的。 电阻R20将偏置电压转换为电流，馈入U1的FB引脚。U1中的内部引擎综合FB引脚电流、 V测引脚电流和内部漏极电流信息，提供恒定的输出电流，同时保持较高的输入功率 因数。 4.5 负载断开保护 本参考设计可获得防止出现意外LED负载断开（如在生产过程中）的保护。控制器将在自 动重启动模式下工作，通过限定输出电压（通过来自电感辅助绕组的反射电压、D7整流和 C12峰值滤波进行检测）防止电路板上的输出电容被损坏。驱动器会在Q4导通（从FB引脚 吸入电流）时进入自动重启动模式，同时齐纳二极管VR2设置过压限值。 4.6 过载和短路保护 样品可通过初级流限获得过载和短路保护。在短路时，初级电流开始增大，直到达到限流 点。请参见短路波形以获得详细信息。 第11页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 5 PCB布局轮廓 Figure 5 – Top Printed Circuit Layout. Figure 6 – Bottom Printed Circuit Layout. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第12页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 6 物料清单(BOM) The table below is the reference design BOM. Item Qty Ref Des 2 1 C1 Description 1000 V, 0.8 A, Bridge Rectifier, SMD, MBS-1, 4-SOIC 220 nF, 275 VAC, Film, X2 1 1 BR1 3 1 C2 47 pF, 1000 V, Ceramic, NPO, 0805 3 1 C3 22 nF 50 V, Ceramic, X7R, 0603 4 1 C4 120 nF, 400 V, Film Mfg Part Number Manufacturer B10S-G Comchip LE224-M OKAYA VJ0805A470JXGAT5Z Vishay C1608X7R1H223K TDK ECQ-E4124KF Panasonic ECQ-E4224KF Panasonic 5 1 C5 220 nF, 400 V, Film 6 1 C6 2.2 μF, 400 V, Electrolytic, (6.3 x 11) TAB2GM2R2E110 Ltec 7 1 C7 2.2 nF, 630 V, Ceramic, X7R, 1206 C3216X7R2J222K TDK 8 1 C8 3216X5R1C105M TDK 9 1 C9 EKZE500ELL560MF11D Nippon Chemi-Con 10 1 C10 100 μF, 16 V, X5R, 1206 56 μF, 50 V, Electrolytic, Very Low ESR, 140 mΩ, (6.3 x 11) 10 nF 50 V, Ceramic, X7R, 0603 C0603C103K5RACTU Kemet 11 1 C11 100 nF, 50 V, Ceramic, X7R, 0805 CC0805KRX7R9BB104 Yageo 12 1 C12 100 nF 50 V, Ceramic, X7R, 0603 C1608X7R1H104K TDK 13 1 C13 100 pF, 200 V, Ceramic, COG, 0805 08052A101JAT2A AVX 14 2 C14 C15 330 μF, 63 V, Electrolytic, (10 x 20) EKMG630ELL331MJ20S United Chemi-con 15 1 CD95-B2GA471KYNS TDK 16 3 250 V, 0.2 A, Fast Switching, 50 ns, SOD-323 BAV21WS-7-F Diodes, Inc. 17 1 CY1 D1 D6 D7 D2 400 V, 1 A, DIODE SUP FAST 1A PWRDI 123 DFLU1400-7 Diodes, Inc. 18 1 D3 DIODE ULTRA FAST, SW 600 V, 1 A, SMA US1J-13-F Diodes, Inc. 19 1 D4 DIODE ULTRA FAST, SW, 200 V, 1 A, SMA US1D-13-F Diodes, Inc. 20 1 D5 BAV16WS-7-F Diodes, Inc. 21 1 D8 BYW29-200G On Semi 22 1 F1 75 V, 0.15 A, Switching, SOD-323 200 V, 8 A, Ultrafast Recovery, 25 ns, TO220AC 5 A, 250 V, Fast, Microfuse, Axial 23 1 L1 Custom, RM5, Vertical, 6 pins 24 1 L2 25 1 Q1 36 1 Q2 26 1 Q3 27 1 28 4 510 Ω, 5%, 1 W, Thick Film, 2512 470 pF, 250 VAC, Film, X1Y1 0263005.MXL Littlefuse SNX-R1688 Santronics USA 5 mH, 0.5 A, Common Mode Choke Vertical SU9VF-05050 Tokin PNP, Small Signal BJT, 40 V, 0.2 A, SOT-23 NPN, Small Signal BJT, GP SS, 40 V, 0.6 A, SOT-23 400 V, 3.1 A,N-Channel, TO-251AA MMBT3906LT1G On Semi MMBT4401LT1G Diodes, Inc. IRFU320PBF Vishay NPN, Small Signal BJT, 40 V, 0.2 A, SOT-23 MMBT3904LT1G On Semi ERJ-1TYJ511U Panasonic 12 kΩ, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ123V Panasonic 1 MΩ, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ105V Panasonic 29 1 Q4 R1 R2 R27 R28 R3 30 2 R4 R5 31 1 R6 2.4 MΩ, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ245V Panasonic 32 1 R7 162 k, 1%, 1/4 W, Thick Film, 1206 ERJ-8ENF1623V Panasonic 33 1 R8 162 k, 1%, 1/4 W, Thick Film, 1206 ERJ-8ENF1623V Panasonic 34 1 R9 30.1 k, 1%, 1/16 W, Thick Film, 0603 ERJ-3EKF3012V Panasonic 35 1 R10 15 Ω, 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ150V Panasonic 36 1 R11 240 Ω, 5%, 2 W, Metal Oxide RSF200JB-240R Yageo 37 1 R12 47 kΩ, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ473V Panasonic 38 1 R13 510 kΩ, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ514V Panasonic 39 2 R14 R15 2.0 MΩ, 1%, 1/4 W, Thick Film, 1206 ERJ-8ENF2004V Panasonic 40 1 R17 200 kΩ, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ204V Panasonic 第13页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 Item Qty Ref Des Description Mfg Part Number Manufacturer 41 1 R18 24.9 kΩ, 1%, 1/16 W, Thick Film, 0603 ERJ-3EKF2492V Panasonic 42 1 R19 6.2 kΩ, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ622V Panasonic 43 1 R20 133 kΩ, 1%, 1/8 W, Thick Film, 0805 ERJ-6ENF1333V Panasonic 44 1 R21 20 kΩ, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ203V Panasonic 45 1 R22 39 Ω, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ390V Panasonic 46 1 R23 10 Ω, 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ100V Panasonic 47 1 R24 1 kΩ, 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ102V Panasonic ERJ-8GEYJ300V Panasonic ERJ-8GEYJ752V Panasonic V130LA20AP Littlefuse SNX-R1689 Santronics USA LYT4324E Power Integrations 48 1 R25 30 Ω, 5%, 1/4 W, Thick Film, 1206 49 1 R26 7.5 kΩ, 5%, 1/4 W, Thick Film, 1206 50 1 RV1 51 1 T1 52 1 U1 250 V, 21 J, 7 mm, RADIAL LA Custom, RM7/I, Vertical, 8 pins with mtg clip CLI/P-RM7 LYTSwitch-4, eSIP-7C 53 1 VR1 15 V, 5%, 500 mW, DO-35 54 1 VR2 33 V, 5%, 200 mW, SOD-323 55 1 VR4 200 V, 400 W, SMA 1N5245B-T Diodes, Inc. MMSZ5257BS-7-F Diodes, Inc. SMAJ200A-13-F Diodes, Inc. Custom Custom CLP212SG Aavid Thermalloy TFT20-NT Custom Cut Mechanical BOM 1 1 2 1 3 6 HS1 POWER CLIP1 Insulation Tubing Heat sink, Custom, Al, 3003, 0.062" Thk Heat sink Hardware, Edge Clip 21N (4.7 lbs) 10 mm L x 7 mm W x 0.5 mm H 15 mm; PTTFE AWG #20 TW Tubing Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第14页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 7 变压器(T1)规格 7.1 电气原理图 Figure 7 – Transformer Electrical Diagram. 7.2 电气规格 Primary Inductance Pins 1-7, all other windings open, measured at 100 kHz, 0.4 VRMS. 1 mH ±7% Resonant Frequency Pins 1-7, all other windings open. 1000 kHz (Min.) 7.3 材料 Item [1] [2] [3] [4] [5] [6] [7] [8] [9] Description Core: RM7; 3F3. Bobbin: Rm-7; 4/4 pin vertical. Clip: EPCOS, KlammerRM7, Manufacture P/N: B65820B2001X. Magnet Wire: #33 AWG, double coated. Magnet Wire: #26 TIW, triple insulated. Magnet Wire: #34 AWG, double coated. Tape: 3M 1298 Polyester Film, 7.0.mm wide, 2.0 mil thick or equivalent. Tape: 3M 1298 Polyester Film, 18.0.mm x 30.0.mm, 2.0.mil thick or equivalent. Varnish: Dolph BC-359, or equivalent. 第15页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 7.4 25-Sep-13 结构图 Figure 8 – Transformer Build Diagram. 7.5 绕制 Winding Preparation Note: pin-out of bobbin is designated as in picture below. Place the bobbin item [1] on the mandrel with the pin side is on the left. Winding direction is clockwise direction. st Winding 1 Start at pin 7, wind 31 turns of wire item [4] from left to right for the 1 layer and place 1 layer of tape item [6]. Continue winding another 31 turns for the nd 2 layer, from right to left and also place 1 layer of tape item [7]. Then wind 26 rd turns for the 3 layer from left to right, at the last turn bring the wire back to the left and terminate at pin 1. Insulation Place 1 layer of tape item [7]. Winding 2 Use wire item [5], leave ~ 25 mm floating and place a piece of small tape to mark it as start lead FL1. Wind 32 turns of wire in 3 layers and 3 turns on the th 4 layer on the right side of bobbin, at the last turn bring the wire back to the left and also leave ~ 25 mm floating as end lead FL2. Insulation Place 1 layer of tape item [7]. Winding 3 Now wind 25 turns of wire item [6] on the left section of 4 layer from winding 2, start at pin 6 and end with pin 8. Insulation Place 2 layers of tape item [7] to secure windings. th Final Assembly Grind core halves item [2] to get 1 mH and secure with clips item [3] Cut short FL1 to 24 mm and FL2 to 12 mm. Cut ground lead of clip item [3] on the left side of core halves, see picture below. Prepare tape item [8]. Wrap 2 layers of tape item [8] on the left side of core halves for insulation. Varnish with item [9]. Cut pin number 2, 3 and 5. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第16页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 9 – Transformer Assembly Illustration. 第17页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 8 差模电感(L1)规格 8.1 结构图 Figure 10 – Inductor Electrical Diagram. 8.2 电气规格 Primary Inductance 8.3 Pins 1-2, all other windings open, measured at 100 kHz, 0.4 VRMS. 240 μH ±10% 材料 Item [1] [2] [3] [4] [5] Description Core: RM5 (3/3); N87. Bobbin: RM-5; 3/3 pin vertical. Magnet Wire: #35 AWG. Tape: 3M 1298 Polyester Film, 4.8 mm wide, 2.0 mil thick or equivalent. Varnish: Dolph BC-359, or equivalent. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第18页（共62页） 25-Sep-13 8.4 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 结构图 Figure 11 – Inductor Build Diagram. 8.5 绕制 Winding Preparation Note: pin-out of bobbin is designated as in picture below. Place the bobbin item [1] on the mandrel with the pin side is on the left. Winding direction is clockwise direction. Winding 1 Start at pin 2, wind 150 turns of wire item [3] continuously then terminate at pin 1. Insulation Place 3 layer of tape item [4]. Winding 2 Start at pin 4, wind 150 turns of wire item [3] continuously then terminate at pin 3. Insulation Place 2 layers of tape item [4] to secure windings. Final Assembly 第19页（共62页） Grind core halves item [2] to get 1 mH and secure with clips. Varnish with item [5]. Cut pin 5 and 6. Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 9 U1散热片 9.1 U1散热片加工图 Figure 12 – U1 Heat Sink Fabrication Drawing. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第20页（共62页） 25-Sep-13 9.2 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 U1散热片装配图 Figure 13 – U1 Heat Sink Assembly Drawing. 第21页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 9.3 25-Sep-13 散热片和U1装配图 Figure 14 – Heat Sink and U1 Assembly Drawing. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第22页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 10 变压器设计表格 ACDC_LYTSwitch4_HL_062013; Rev.1.0; INPUT INFO Copyright Power Integrations 2013 ENTER APPLICATION VARIABLES Dimming required OUTPUT YES YES VACMIN 185 VACMAX fL VO 36 VO_MAX VO_MIN V_OVP IO 0.55 PO n VB ENTER LYTSwitch VARIABLES LYTSwitch Auto 185 265 50 36 39.6 32.4 42.47 0.55 19.8 0.8 25 Current Limit Mode ILIMITMIN ILIMITMAX fS fSmin fSmax IV RV RV2 IFB RFB1 VDS RED UNIT LYTSwitch-4_HL_062013: Flyback Transformer Design Spreadsheet V V Hz V V V V A W DER-396 Select 'YES' option if dimming is required. Otherwise select 'NO'. Minimum AC Input Voltage Maximum AC input voltage AC Mains Frequency Typical output voltage of LED string at full load Maximum expected LED string Voltage. Minimum expected LED string Voltage. Over-voltage protection setpoint Typical full load LED current Output Power Estimated efficiency of operation Bias Voltage V LYT4324 RED 0.95 1.11 132000 124000 140000 80.56727984 4 1E+12 178 123.5955056 10 A A Hz Hz Hz uA M-ohms M-ohms uA k-ohms V VD 0.5 V VDB Key Design Parameters 0.7 V KP 178 0.7 0.7 LP 998.2376383 VOR 92 92 Expected IO (average) 0.547777905 KP_VNOM 0.666138709 TON_MIN 1.493186757 PCLAMP 0.159394306 ENTER TRANSFORMER CORE/CONSTRUCTION VARIABLES Core Type RM7 RM7 Custom Core RM7 AE 0.45 0.45 LE 3 3 AL 2500 2500 BW 6.9 6.9 M 第23页（共62页） 0 uH V A us W cm^2 cm nH/T^2 mm mm Selected LYTSwitch Select "RED" for reduced Current Limit mode or "FULL" for Full current limit mode Minimum current limit Maximum current limit Switching Frequency Minimum Switching Frequency Maximum Switching Frequency V pin current Upper V pin resistor Lower V pin resistor FB pin current (85 uA < IFB < 210 uA) FB pin resistor LYTSwitch on-state Drain to Source Voltage Output Winding Diode Forward Voltage Drop (0.5 V for Schottky and 0.8 V for PN diode) Bias Winding Diode Forward Voltage Drop Ripple to Peak Current Ratio (For PF > 0.9, 0.4 < KP < 0.9) Primary Inductance Reflected Output Voltage. Expected Average Output Current Expected ripple current ratio at VACNOM Minimum on time at maximum AC input voltage Estimated dissipation in primary clamp Select Core Size Enter Custom core part number (if applicable) Core Effective Cross Sectional Area Core Effective Path Length Ungapped Core Effective Inductance Bobbin Physical Winding Width Safety Margin Width (Half the Primary to Secondary Creepage Distance) Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 L 4 4 NS 35 35 DC INPUT VOLTAGE PARAMETERS VMIN 261.629509 VMAX 374.766594 CURRENT WAVEFORM SHAPE PARAMETERS DMAX 0.267730208 IAVG 0.119116476 A IP 0.826177997 A IRMS 0.231970815 A TRANSFORMER PRIMARY DESIGN PARAMETERS LP 998.2376383 LP_TOL 10 10 NP 88.21917808 NB 24.64383562 ALG 128.2649294 BM 2077.457006 BP 2791.138572 25-Sep-13 Number of Primary Layers Number of Secondary Turns V V Peak input voltage at VACMIN Peak input voltage at VACMAX Minimum duty cycle at peak of VACMIN Average Primary Current Peak Primary Current (calculated at minimum input voltage VACMIN) Primary RMS Current (calculated at minimum input voltage VACMIN) Primary Inductance Tolerance of primary inductance Primary Winding Number of Turns Bias Winding Number of Turns nH/T^2 Gapped Core Effective Inductance Gauss Maximum Flux Density at PO, VMIN (BM<3100) Gauss Peak Flux Density (BP<3700) AC Flux Density for Core Loss Curves (0.5 X Peak BAC 727.109952 Gauss to Peak) ur 1326.288091 Relative Permeability of Ungapped Core LG 0.418255474 mm Gap Length (Lg > 0.1 mm) BWE 27.6 mm Effective Bobbin Width Maximum Primary Wire Diameter including OD 0.312857143 mm insulation Estimated Total Insulation Thickness (= 2 * film INS 0.053423557 mm thickness) DIA 0.259433586 mm Bare conductor diameter Primary Wire Gauge (Rounded to next smaller AWG 30 AWG standard AWG value) CM 101.5936673 Cmils Bare conductor effective area in circular mils Primary Winding Current Capacity (200 < CMA < CMA 437.9588334 Cmils/Amp 600) TRANSFORMER SECONDARY DESIGN PARAMETERS (SINGLE OUTPUT EQUIVALENT) Lumped parameters ISP 2.082421254 A Peak Secondary Current ISRMS 0.884132667 A Secondary RMS Current IRIPPLE 0.692235923 A Output Capacitor RMS Ripple Current CMS 176.8265334 Cmils Secondary Bare Conductor minimum circular mils Secondary Wire Gauge (Rounded up to next larger AWGS 27 AWG standard AWG value) DIAS 0.362522298 mm Secondary Minimum Bare Conductor Diameter Secondary Maximum Outside Diameter for Triple ODS 0.197142857 mm Insulated Wire VOLTAGE STRESS PARAMETERS Estimated Maximum Drain Voltage assuming VDRAIN 566.5923475 V maximum LED string voltage (Includes Effect of Leakage Inductance) Output Rectifier Maximum Peak Inverse Voltage PIVS 191.1564827 V (calculated at VOVP, excludes leakage inductance spike) Bias Rectifier Maximum Peak Inverse Voltage PIVB 134.1846154 V (calculated at VOVP, excludes leakage inductance spike) FINE TUNING (Enter measured values from prototype) V pin Resistor Fine Tuning RV1 4 M-ohms Upper V Pin Resistor Value Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com uH 第24页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 RV2 VAC1 VAC2 IO_VAC1 IO_VAC2 RV1 (new) RV2 (new) 1E+12 115 230 0.55 0.55 4.000604137 20911.63067 M-ohms V V A A M-ohms M-ohms V_OV 319.5673531 V V_UV 66.34665276 V FB pin resistor Fine Tuning RFB1 133 RFB2 VB1 VB2 IO1 IO2 RFB1 (new) RFB2(new) Input Current Harmonic Analysis 133 1E+12 22.46520548 27.53479452 0.55 0.55 133 1E+12 k-ohms k-ohms V V A A k-ohms k-ohms Harmonic Max Current (mA) Limit (mA) 3rd Harmonic 20.69736113 1666.17 5th Harmonic 9.233940611 931.095 7th Harmonic 5.592928806 490.05 9th Harmonic 3.956638292 245.025 11th Harmonic 2.979917621 171.5175 13th Harmonic 2.264929473 145.103805 15th Harmonic 1.69769565 125.74683 THD 23.53869833 % Lower V Pin Resistor Value Test Input Voltage Condition1 Test Input Voltage Condition2 Measured Output Current at VAC1 Measured Output Current at VAC2 New RV1 New RV2 Typical AC input voltage at which OV shutdown will be triggered Typical AC input voltage beyond which power supply can startup Upper FB Pin Resistor Value Lower FB Pin Resistor Value Test Bias Voltage Condition1 Test Bias Voltage Condition2 Measured Output Current at Vb1 Measured Output Current at Vb2 New RFB1 New RFB2 1st Harmonic PASS. 3rd Harmonic current content is lower than the limit PASS. 5th Harmonic current content is lower than the limit PASS. 7th Harmonic current content is lower than the limit PASS. 9th Harmonic current content is lower than the limit PASS. 11th Harmonic current content is lower than the limit PASS. 13th Harmonic current content is lower than the limit PASS. 15th Harmonic current content is lower than the limit Estimated total Harmonic Distortion (THD) Table 1 – Sample Spreadsheet Calculation. 第25页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 11 性能数据 All measurements performed at 25 ºC room temperature, 60 Hz input frequency unless otherwise specified. Input VAC Freq (VRMS) (Hz) VIN (VRMS) Input Measurement IIN PIN PF (mARMS) (W) %ATHD LED Load Measurement VOUT IOUT POUT (VDC) (mADC) (W) Efficiency (%) 185 50 184.85 140.39 24.969 0.962 15.62 39.1500 547.700 21.540 86.27 200 50 199.85 131.37 24.997 0.952 16.49 39.1100 549.800 21.610 86.45 220 50 219.90 121.59 25.016 0.936 17.59 39.0800 551.000 21.620 86.42 230 50 229.85 117.51 25.020 0.926 17.91 39.0500 551.000 21.610 86.37 240 50 239.88 113.83 25.028 0.917 18.01 39.0300 551.000 21.590 86.26 265 50 264.92 106.00 24.935 0.888 18.04 38.9900 547.000 21.410 85.86 185 50 184.84 130.63 23.130 0.958 15.76 35.9000 552.000 19.910 86.08 200 50 199.85 122.72 23.227 0.947 16.46 35.8900 555.000 20.030 86.24 220 50 219.91 114.31 23.363 0.929 17.27 35.8900 558.000 20.150 86.25 230 50 229.85 110.76 23.412 0.920 17.44 35.8900 559.000 20.170 86.15 240 50 239.88 107.35 23.399 0.909 17.55 35.8800 558.000 20.130 86.03 265 50 264.92 100.60 23.399 0.878 17.49 35.8600 556.000 20.030 85.60 185 50 184.85 122.49 21.580 0.953 16.09 33.2300 555.000 18.570 86.05 200 50 199.86 115.48 21.724 0.941 16.6 33.2100 560.000 18.720 86.17 220 50 219.91 107.91 21.887 0.922 17.17 33.1900 564.000 18.850 86.12 230 50 229.85 104.54 21.898 0.911 17.31 33.1700 564.000 18.840 86.04 240 50 239.89 101.58 21.922 0.900 17.27 33.1400 565.000 18.830 85.90 265 50 264.93 95.77 21.991 0.867 17.11 33.1200 564.000 18.790 85.44 Table 2 – Test Result Summary for this Design. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第26页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 11.1 带载模式效率 87.1 39 VDC Output 36 VDC Output 33 VDC Output 86.8 Efficiency (%) 86.5 86.2 85.9 85.6 85.3 85.0 175 185 195 205 215 225 235 245 255 265 AC Input Voltage (VRMS / 50Hz) Figure 15 – Efficiency with Respect to AC Input Voltage. 第27页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 275 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 11.2 线电压调整 10 33 VDC Output 36 VDC Output 8 39 VDC Output 6 Regulation (%) 4 2 0 -2 -4 -6 -8 -10 175 185 195 205 215 225 235 245 255 265 275 AC Input Voltage (VRMS / 50Hz) Figure 16 – Line Regulation, Room Temperature. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第28页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 11.3 功率因数 1.00 39 VDC Output 36 VDC Output 33 VDC Output 0.98 Power Factor (PF) 0.96 0.94 0.92 0.90 0.88 0.86 0.84 0.82 0.80 175 185 195 205 215 225 235 245 255 265 AC Input Voltage (VRMS / 50 Hz) Figure 17 – High Power Factor within the Operating Range. 第29页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 275 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 11.4 %THD 35 33 VDC Output 36 VDC Output 39 VDC Output 30 THD (%) 25 20 15 10 5 0 175 185 195 205 215 225 235 245 255 265 275 AC Input Voltage (VRMS / 50 Hz) Figure 18 – Very Low %ATHD. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第30页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 11.5 谐波含量 90 Limit 36 VDC Output 80 Harmonic Content (mA) 70 60 50 40 30 20 10 0 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 Harmonic Order Figure 19 – Meets EN61000-3-2 Harmonics Contents Standards for <25 W Rating for 36 V LED Output. 第31页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 11.6 谐波测量 VAC (VRMS) 230 nth Order 1 2 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 Freq (Hz) 50.00 mA Content 109.04 0.02 14.21 8.15 5.16 4.75 3.34 3.24 2.14 2.15 1.36 1.39 0.96 0.96 0.87 0.81 0.83 0.76 0.83 0.70 0.78 0.59 0.68 0.50 0.64 0.44 I (mA) P PF 110.76 % Content 23.4120 Limit (mA) <25 W 0.9197 0.02% 13.03% 7.47% 4.73% 4.36% 3.06% 2.97% 1.96% 1.97% 1.25% 1.27% 0.88% 0.88% 0.80% 0.74% 0.76% 0.70% 0.76% 0.64% 0.72% 0.54% 0.62% 0.46% 0.59% 0.40% 79.6008 44.4828 23.4120 11.7060 8.1942 6.9336 6.0091 5.3021 4.7440 4.2922 3.9190 3.6054 3.3384 3.1081 2.9076 2.7314 2.5753 2.4361 2.3112 Remarks 27.59% 10.00% 7.00% 5.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% 3.00% Table 3 – 230 VAC Input Current Harmonic Measurement for 36 V LED. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第32页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 11.7 调光特性 The dimming characteristic was taken from a controlled AC supply to emulate the TRIAC conduction pattern. The reference design meets the dimming requirement as set by National Electrical Manufacturers Association (NEMA) Standards Publication SSL 1-2010 (Electronic Drivers for LED Devices, Arrays or Systems) and SSL 6-2010(Solid Light Lighting for Incandescent Replacement-Dimming). 700 Dim to Full Brightness NEMA Light Output Upper Limit NEMA Light Output Lower Limit 600 Output Current (A) 500 400 300 200 100 0 0 20 40 60 80 100 120 140 160 Phase Angle Conduction (º) 第33页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 180 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 600 180-0 LYT4324E 0-180 LYT4324E Output Current (mA) 500 400 300 200 100 0 0 20 40 60 80 100 120 140 160 180 Conduction Angle (θ) Figure 20 – Dimming Curve Characteristic From Full Dim to Full Brightness. Meets NEMA SSL 6-2010. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第34页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 600 Full Brightness to Dim 400 300 200 100 0 240 220 200 180 160 140 120 100 80 60 40 20 0 Effective RMS Input Voltage During Dimming (VAC) Figure 21 – Dimming Characteristic with Respect to RMS Input Voltage During Dimming. 第35页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com Output Current (A) 500 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 11.8 参考设计与调光器的兼容性 These are the list of dimmers verified for this reference design. Users are not limited on the following list. Make sure to test the dimmers according to its recommended operating line input frequency to avoid flicker. Dimmer Origin Part Number China China China China China China China China Korea Korea Korea Korea Germany Germany Germany Germany Germany Germany Germany Germany Germany Germany TCL 630 W Sen Bo Lang Eba Huang SB elect 600 W Myongbo KBE 650 W Clipmei Mank 200 W Anam 500 W Shin Sung Fantasia 500 W Shin Sung 2 Rev 300 W Busch 2250 600 W PEHA 400 W Merten 572499 400 W Busch 6513 420 W Berker 2875 600 W Ove Busch 691 U-101 Busch 6513 U-102 Peha 433AB Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com IMIN (mA) 147.4 189.4 35.9 1.3 191.4 0.6 147.2 202.8 191.0 177.6 185.0 158.2 0.1 107.1 1.5 77.5 109.7 123.5 113.4 106.4 107.8 174.1 IMAX (mA) 556.0 555.0 556.0 545.5 558.0 555.5 556.0 557.0 551.0 552.0 549.4 552.0 537.6 542.4 505.2 550.0 546.5 532.9 503.9 529.2 546.0 534.5 Dim Ratio 4 3 15 420 3 926 4 3 3 3 3 3 5376 5 337 7 5 4 4 5 5 3 第36页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 12 热性能 The scan is conducted at ambient temperature of 25 ºC open frame, 185 VAC / 50 Hz input. Figure 22 – Open Frame Thermal Scan Legend: Sp1 – Output Capacitor C14 Sp2 – Output Capacitor C15 Sp3 – Common Mode Inductor L2 Sp4 – Damper MOSFET Q3 Sp5 – Transformer T1. Sp6 – Output Diode D8 Sp7 – Differential Inductor L1 Figure 23 – U1 LNK4314E Device Temperature. 第37页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 Figure 24 – Bottom Side Board Temperature at Open Frame. Legend: Sp1 – Bridge Rectifier BR1 Sp2 – Blocking Diode D4 Sp3 – Snubber Diode D3 Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第38页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 13 波形 13.1 漏极电压和电流，正常工作 No saturation in the inductor and designed guaranteed to work in continuous mode within the operating input voltage. Figure 25 – 185 VAC / 50 Hz, 36 V LED String. Ch2: VDRAIN, 200 V / div. Ch3: IDRAIN, 0.2 A / div. Time Scale: 2 ms / div. Zoom Time Scale: 2 μs / div. Figure 26 – 265 VAC / 50 Hz, 36 V LED String. Ch2: VDRAIN, 200 V / div. Ch3: IDRAIN, 0.2 A / div. Time Scale: 2 ms / div. Zoom Time Scale: 2 μs / div. 13.2 漏极电压和电流启动特征 Device has a built in soft start thereby reducing the stress in the device, transformer and output diode . Figure 27 – 185 VAC / 50 Hz, 36 V LED String. Ch2: VDRAIN, 200 V / div. Ch4: IDRAIN, 0.2 A / div. Time Scale: 10 ms / div. Zoom Time Scale: 10 μs / div. 第39页（共62页） Figure 28 – 265 VAC / 50 Hz, 36 V LED String. Ch2: VDRAIN, 200 V / div. Ch4: IDRAIN, 0.2 A / div. Time Scale: 10 ms / div. Zoom Time Scale: 10 μs / div. Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 13.3 输出电压启动特征 Start-up time <250 ms; the reference design will emit light within 250 ms at non-dimming operation. Figure 29 – 185 VAC / 50 Hz, 36 V LED Ch1: VIN, 200 V / div. Ch2: VOUT, 10 V / div. Ch3: IIN, 200 mA / div. Ch4: IOUT, 200 mA / div., 100 ms / div. Figure 30 – 265 VAC / 50 Hz, 36 V LED Ch1: VIN, 200 V / div. Ch2: VOUT, 10 V / div. Ch3: IIN, 200 mA / div. Ch4: IOUT, 200 mA / div., 100 ms / div. 13.4 输入与输出电压和电流的波形 Output current ripple is inversely proportional to the impedance of the LED. Verify the actual current ripple on the actual LED to be used in the system. Increase output capacitance for lesser output current ripple is intended. Figure 31 – 185 VAC / 50 Hz, 36 V LED String. Ch1: VIN, 200 V / div. Ch2: VOUT, 10 V / div. Ch3: IIN, 200 mA / div. Ch4: IOUT, 200 mA / div., 10 ms / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com Figure 32 – 220 VAC / 50 Hz, 36 V LED String. Ch1: VIN, 200 V / div. Ch2: VOUT, 10 V / div. Ch3: IIN, 200 mA / div. Ch4: IOUT, 200 mA / div., 10 ms / div. 第40页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 33 – 240 VAC / 50 Hz, 36 V LED String. Ch1: VIN, 200 V / div. Ch2: VOUT, 10 V / div. Ch3: IIN, 200 mA / div. Ch4: IOUT, 200 mA / div., 10 ms / div. Figure 34 – 265 VAC / 50 Hz, 36 V LED String. Ch1: VIN, 200 V / div. Ch2: VOUT, 10 V / div. Ch3: IIN, 200 mA / div. Ch4: IOUT, 200 mA / div., 10 ms / div. 13.5 漏极电压和电流波形：正常工作到输出短路 No saturation in the inductor during short-circuit, inductor current is limited by the ILIM. Figure 35 – 185 VAC / 50 Hz, Normal Operation then Output Short. Ch1: VOUT, 20 V / div. Ch2: VDS, 200 V / div. Ch4: IDRAIN, 0.5 A / div., 10 ms / div. Z3: IDRAIN, 0.2 A / div., 5 μs / div. 第41页（共62页） Figure 36 – 265 VAC / 50 Hz, Normal Operation then Output Short. Ch1: VOUT, 20 V / div. Ch2: VDS, 200 V / div. Ch4: IDRAIN, 0.5 A / div., 10 ms / div. Z3: IDRAIN, 0.2 A / div., 5 μs / div. Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 13.6 漏极电压和电流波形：输出短路时启动 No saturation in the inductor during start-up short-circuit due to the built-in soft-start. Figure 37 – 185 VAC / 50 Hz, Output Shorted. Ch1: VDS, 20 V / div. Ch3: IDRAIN, 0.2 A / div., 10 ms / div. Z3: IDRAIN, 0.2 A / div., 10 μs / div. Figure 38 – 265 VAC / 50 Hz, Output Shorted. Ch1: VDS, 20 V / div. Ch3: IDRAIN, 0.2 A / div., 10 ms / div. Z3: IDRAIN, 0.2 A / div., 10 μs / div.. 13.7 空载工作 The driver is protected during no-load operation, U1 operating is cycle skipping mode. Figure 39 – 185 VAC / 50 Hz, Start-up No-load. Ch2: VOUT, 10 V / div. Ch3: IDS, 0.1 A / div. Time Scale: 2 s / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com Figure 40 – 265 VAC / 50 Hz, Start-up No-load. Ch2: VOUT, 10 V / div. Ch3: IDS, 0.1 A / div. Time Scale: 2 s / div. 第42页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 13.8 交流电循环上电 The reference design has no perceptible delay. Figure 41 – 240 VAC / 50 Hz, 300 ms On – 300 ms Off. Load: 36 V LED String. Ch1: VIN, 200 V / div. Ch4: IOUT, 100 mA / div. Time Scale: 1 s / div. Figure 42 – 240 VAC / 50 Hz, 500 ms On – 500 ms Off. Load: 36 V LED String. Ch1: VIN, 200 V / div. Ch4: IOUT, 100 mA / div. Time Scale: 1 s / div. Figure 43 – 240 VAC / 50 Hz, 1s On – 1s Off. Load: 36 V LED String. Ch1: VIN, 200 V / div. Ch4: IOUT, 100 mA / div. Time Scale: 1 s / div. Figure 44 – 240 VAC / 50 Hz, 2s On – 2s Off. Load: 36 V LED String. Ch1: VIN, 200 V / div. Ch4: IOUT, 100 mA / div. Time Scale: 1 s / div. 第43页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 13.9 调光波形 Figure 45 – 240 VAC / 50 Hz, (China) TCL 630 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 46 – 240 VAC / 50 Hz, (China) TCL 630 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 47 – 240 VAC / 50 Hz, (China) Sen Bo Lang 300 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 48 – 240 VAC / 50 Hz, (China) Sen Bo Lang 300 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第44页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 49 – 240 VAC / 50 Hz, (China) Eba Huang Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 51 – 240 VAC / 50 Hz, (China) SB elect 600 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. 第45页（共62页） Figure 50 – 240 VAC / 50 Hz, (China) Eba Huang Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 52 – 240 VAC / 50 Hz, (China) SB elect 600 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 Figure 53 – 240 VAC / 50 Hz, (China) Myongbo Dimmer at Full TRIAC conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 54 – 240 VAC / 50 Hz, (China) Myongbo Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 55 – 240 VAC / 50 Hz, (China) KBE, 650 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 56 – 240 VAC / 50 Hz, (China) KBE, 650 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第46页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 57 – 240 VAC / 50 Hz, (China) Clipmei Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 58 – 240 VAC / 50 Hz, (China) Clipmei Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 59 – 240 VAC / 50 Hz, (China) Mank 200 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 60 – 240 VAC / 50 Hz, (China) Mank 200 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. 第47页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 Figure 61 – 240 VAC / 50 Hz, (Korea) Anam, 500 W Dimmer at full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 62 – 240 VAC / 50 Hz, (Korea) Anam, 500 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 63 – 240 VAC / 50 Hz, (Korea) Shin Sung Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 64 – 240 VAC / 50 Hz, (Korea) Shin Sung Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第48页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 65 – 240 VAC / 50 Hz, (Korea) Fantasia 500 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 66 – 240 VAC / 50 Hz, (Korea) Fantasia 500 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 67 – 240 VAC / 50 Hz, (Korea) Shin Sung 2 Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 68 – 240 VAC / 50 Hz, (Korea) Shin Sung 2 Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. 第49页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 69 – 240 VAC / 50 Hz, (Germany) Rev 300 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 71 – 240 VAC / 50 Hz, (Germany) Busch 2250 600 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 25-Sep-13 Figure 70 – 240 VAC / 50 Hz, (Germany) Rev 300 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 72 – 240 VAC / 50 Hz, (Germany) Busch 2250 600 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. 第50页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 73 – 240 VAC / 50 Hz, (Germany) PEHA 400 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 74 – 240 VAC / 50 Hz, (Germany) PEHA 400 W Dimmer at Minimum TRIAC conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 75 – 240 VAC / 50 Hz, (Germany) Merten 572499, 400 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 76 – 240 VAC / 50 Hz, (Germany) Merten 572499, 400 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. 第51页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 Figure 77 – 240 VAC / 50 Hz, (Germany) Busch 6513, 420 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 78 – 240 VAC / 50 Hz, (Germany) Busch 6513, 420 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 79 – 240 VAC / 50 Hz, (Germany) Berker 2875, 600 W Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 80 – 240 VAC / 50 Hz, (Germany) Berker 2875, 600 W Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第52页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 81 – 240 VAC / 50 Hz, (Germany) Ove Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 82 – 240 VAC / 50 Hz, (Germany) Ove Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 83 – 240 VAC / 50 Hz, (Germany) Busch 691 U-101 Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 84 – 240 VAC / 50 Hz, (Germany) Busch 691 U-101 Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. 第53页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 Figure 85 – 240 VAC / 50 Hz, (Germany) Busch 6513 U102 Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 86 – 240 VAC / 50 Hz, (Germany) Busch 6513 U102 Dimmer at minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 87 – 240 VAC / 50 Hz, (Germany) PEHA 433AB Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Figure 88 – 240 VAC / 50 Hz, (Germany) PEHA 433AB Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第54页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Figure 89 – 240 VAC / 50 Hz, (Germany) PEHA 433AB oA Dimmer at Full TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. 第55页（共62页） Figure 90 – 240 VAC / 50 Hz, (Germany) PEHA 433AB oA Dimmer at Minimum TRIAC Conduction. Load: 36 V LED String. Ch2: VIN, 200 V / div. Ch3: IIN, 100 mA / div. Ch4: IOUT, 100 mA / div. Time Scale: 5 ms / div. Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 13.10 输入浪涌波形 13.10.1 差模输入浪涌 Figure 91 – 265 VAC / 60 Hz, 36 V Load, VDS = 591 VPK (+) 500 V Diff. Line Surge at 90º. Ch1: VDS, 200 V / div. Ch2: IIN, 500 mA / div. Time Scale: 1 μs / div. 13.10.2 Figure 92 – 265 VAC / 50 Hz, 36 V Load, VDS = 611 VPK (+) 500 V Diff. Line Surge at 270º. Ch1: VBULK, 100 V / div. Ch2: VDS, 200 V / div. Time Scale: 200 μs / div. Zoom Time Scale: 20 μs / div. 差模振铃浪涌 Figure 93 – 230 VAC / 60 Hz, 36 V Load, VDS = 572 VPK (+) 500 V Differential Ring Surge at 90º. Ch1: VDS, 200 V / div. Ch2: VBULK, 200 V / div. Zoom Time Scale: 5 μs / div. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com Figure 94 – 230 VAC / 60 Hz, 36 V Load, VDS = 565 VPK (+) 500 V Differential Ring Surge at 0º. Ch1: VDS, 200 V / div. Ch2: VBULK, 200 V / div. Zoom Time Scale: 5 μs / div. 第56页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 14 输入浪涌 Input voltage was set at 230 VAC / 60 Hz. Output was loaded with 36 V LED string and operation was verified following each surge event. Two units were verified in the following conditions. Differential input line 1.2 / 50 μs surge testing was completed on one test unit to IEC61000-4-5. Surge Level (V) +500 -500 +500 -500 Input Voltage (VAC) 120 120 120 120 Injection Location L to N L to N L to N L to N Injection Phase (°) 0 270 90 180 Test Result (Pass/Fail) Pass Pass Pass Pass Differential input line ring surge testing was completed on one test unit to IEC61000-4-5. Surge Level (V) +2500 -2500 +2500 -2500 Input Voltage (VAC) 120 120 120 120 Injection Location L to N L to N L to N L to N Injection Phase (°) 0 270 90 180 Test Result (Pass/Fail) Pass Pass Pass Pass Unit passes under all test conditions. 第57页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 15 传导EMI 15.1 设备 Receiver: Rohde & Schwartz ESPI - Test Receiver (9 kHz – 3 GHz) Model No: ESPI3 LISN: Rohde & Schwartz Two-Line-V-Network Model No: ENV216 15.2 EMI测试设置 Usually LED driver is placed in a conical metal housing (for self-ballasted lamps; CISPR15 Edition 7.2) but since lamp housing is not available during the UUT was tested then it was evaluated as shown in the figure below. Figure 95 – Conducted Emissions Measurement Set-up. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第58页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 15.3 EMI测试结果 Att 10 dB AUTO dBµV 120 EN55015Q 110 100 kHz LIMIT CHECK 1 MHz PASS 10 MHz SGL 1 QP CLRWR 100 90 2 AV CLRWR TDF 80 70 60 EN55015A 50 6DB 40 30 20 10 0 -10 -20 9 kHz 30 MHz Figure 96 – Conducted EMI, 36 V output / 550 mA Steady-State Load, 230 VAC, 60 Hz, and EN55015 Limits. 第59页（共62页） Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 Trace1: 25-Sep-13 EDIT PEAK LIST (Final Measurement Results) EN55015Q Trace2: EN55015A Trace3: --- TRACE FREQUENCY LEVEL dBµV DELTA LIMIT dB 2 Average 130.825395691 kHz 38.20 L1 gnd 1 Quasi Peak 133.454986145 kHz 64.55 L1 gnd 2 Average 133.454986145 kHz 64.29 N gnd 2 Average 136.137431366 kHz 24.88 L1 gnd 1 Quasi Peak 174.145343305 kHz 52.73 L1 gnd -12.02 2 Average 200.175581485 kHz 35.00 N gnd -18.60 1 Quasi Peak 208.303512797 kHz 50.42 L1 gnd -12.85 1 Quasi Peak 227.818484195 kHz 50.65 N gnd -11.87 1 Quasi Peak 246.694773277 kHz 50.50 L1 gnd -11.36 1 Quasi Peak 254.169871602 kHz 51.18 N gnd -10.43 2 Average 267.135089486 kHz 44.12 N gnd -7.07 2 Average 401.705024172 kHz 36.36 N gnd -11.45 1 Quasi Peak 434.988979109 kHz 45.29 L1 gnd -11.86 2 Average 667.263434405 kHz 34.06 N gnd -11.93 2 Average 798.145472681 kHz 35.73 N gnd -10.26 1 Quasi Peak 3.76891518811 MHz 42.16 L1 gnd -13.83 2 Average 3.76891518811 MHz 33.46 L1 gnd -12.53 1 Quasi Peak 4.16322710559 MHz 45.25 L1 gnd -10.74 2 Average 5.28619370567 MHz 41.89 N gnd -8.10 1 Quasi Peak 5.55584271143 MHz 46.93 N gnd -13.06 -16.50 Figure 97 – Conducted EMI, 36 V / 550 mA Steady-State Load Steady-State Load, 230 VAC, 60 Hz, and EN55015 Limits / Line and Neutral Scan Design Margin Measurement. Power Integrations, Inc. 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com 第60页（共62页） 25-Sep-13 DER-396：使用LYT4324E设计的20 W反激式LED驱动器 16 版本历史 Date 25-Sep-13 Author ME 第61页（共62页） Revision 1.0 Description and Changes Initial Release Reviewed Apps & Mktg Power Integrations 电话：+1 408 414 9200 传真：+1 408 414 9201 www.powerint.com DER-396：使用LYT4324E设计的20 W反激式LED驱动器 25-Sep-13 有关最新产品信息，请访问：www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein. POWER INTEGRATIONS MAKES NO WARRANTY HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS. PATENT INFORMATION The products and applications illustrated herein (including transformer construction and circuits’ external to the products) may be covered by one or more U.S. and foreign patents, or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at www.powerint.com. Power Integrations grants its customers a license under certain patent rights as set forth at http://www.powerint.com/ip.htm. The PI Logo, TOPSwitch, TinySwitch, LinkSwitch, DPA-Switch, PeakSwitch, CAPZero, SENZero, LinkZero, HiperPFS, HiperTFS, HiperLCS, Qspeed, EcoSmart, Clampless, E-Shield, Filterfuse, StackFET, PI Expert and PI FACTS are trademarks of Power Integrations, Inc. Other trademarks are property of their respective companies. ©Copyright 2012 Power Integrations, Inc. Power Integrations全球销售支持网络 全球总部 5245 Hellyer Avenue San Jose, CA 95138, USA. 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