Bourns Circuit Conditioning Short Form Brochure Introduction Power electronics cover different disciplines ranging from magnetics design, EMI filter design, analog electronics, power semiconductors, circuit protection, and now recently digital signal processing. The objective of a power electronics circuit is to modify energy in the form of voltage and current at different frequencies, or, in other words, to modify the input voltage and current conditions. This circuit conditioning short form brochure provides information on the Bourns® product portfolio for power electronic applications. A switch mode power supply and drive can be described as a series of building blocks as shown in figure 1, each with the following functions: A) Protection a. Protection of the circuit from lightning and switching transients on the AC mains (IEC 61000-4-4 and IEC 61000-4-5) b. Short Circuit Protection i. For agency short circuit testing of low power circuits ii. For prevention of short circuiting of IGBTs on inverter legs B) EMI a. Conducted emissions (IEC 61000-4-6) b. Radiated emissions (EN 61000-4-3) C) Transformer and Output Filter CUSTOM TRANSFORMER DESIGN EVALUATION WORKSHEET In order to facilitate the initial feasibility study, the design engineer should fill out the appropriate information in the worksheet below. This will allow the Bourns transformer designer to propose the optimum design that will achieve the highest possible efficiency. Bourns has standard cores, bobbins, enamel and single, double and triple insulated wire in stock for custom transformer and inductor designs. Transformer Requirements Topology (see page 3 topology tables) Power Primary Inductance Leakage Inductance Switching Frequency Input and Output Voltage(s) Interwinding Capacitance Sketch of Windings Overvoltage/Overcurrent INPUT Protection Short Circuit Transformer EMI FILTER Protection LOAD AC or DC Vin Control • LED Lighting Feedback • Bias Voltage for Motor Controller Power Supply Controller Chip • Battery Charge • Bias for E-meter Logic Overvoltage/Overcurrent INPUT Protection EMI Auxiliary Winding Voltage Examples: Power Transistor INVERTER Safety Requirements (Reinforced, Single, Functional, Operational) Coupling Between Secondaries AC or DC Vin Control Feedback BLDC Figure 1 2 Shaded areas outline where Bourns® Components are used in power applications Operating Temperatures Name of Controller IC Specification Notes Topologies Flyback Converter Topology Forward Topology Two-Switch Forward Topology Isolation Max. Power (W) Strengths Isolation Max Power (W) Strengths Yes 200 Large step-down ratio Isolation Max. Power (W) Strengths Yes 1000 Very rugged circuit Weaknesses High voltage on-switch increases power lost Weaknesses Noisy input Applications AC/DC, DC/DC industrial controls Applications AC/DC, DC/DC industrial controls Weaknesses Applications Yes 100 Ground referenced switch, multiple outputs, fewer components Limited to 10 A output, high stress on diode, inefficient (use of ZVS converters improves losses) AC/DC, DC/DC appliances, solar inverters, LED lighting, AC adaptors, E-meters, battery charging, automotive, circuit breakers, TVs, STBs, PoE Half Bridge Forward Topology Full Bridge Forward Topology Full Bridge Resonant Topology Isolation Max. Power (W) Strengths Yes 500 Reduced core loss Isolation Max. Power (W) Strengths Isolation Max. Power (W) Strengths Yes 5000 Soft switching Weaknesses Does not work well with current mode making it less than ideal for off line power supplies DC/DC industrial controls, telecom, data processing Weaknesses Yes 5000 Clamped primary switch and minimal switching losses Requires experience to get working properly Weaknesses Narrow input range AC/DC, DC/DC industrial controls, telecom, data processing, automotive HEV / EV Applications Lighting Applications Applications Push Pull Converter Topology Boost Converter Topology Buck Converter Topology Isolation Max. Power (W) Strengths Yes 500 Ground referenced switches Isolation Max. Power (W) Strengths No 1000 Low noise input Isolation Max. Power (W) Strengths No 1000 Low noise output Weaknesses Can only tolerate low input voltages Weaknesses Weaknesses Applications DC/DC battery charging, servers Applications Requires current mode control and has no isolation AC/DC, DC/AC power factor correction circuits, automotive electric vehicles, motor drives (appliances) Optimum input/output ratio must be less than 10; no isolation AC/DC , DC/DC notebooks, servers, graphic processors, automotive Applications 3 Product Configuration Chart Overcurrent Protection Surge Protection Common Mode Inductors Differential Mode Filters Diodes L N Wirewound Resistors Model Description Inductors Description Model FW Series UL listed fusible resistors 7100 Series Toroid Max 10 A 5300 Series Axial leaded inductor with 500 Vrms rating WS Series Capable of withstanding up to 10 kV 7300 Series Split Bobbin Model Max. 1.5 A 8230 Series Axial leaded high Q 500 Vrms rating 7400 Series Split Bobbin Model Max. 2.8 A 9250A Series Axial leaded high Q 1,000 Vrms Up to 125 ˚C 7500 Series Split Bobbin Model Max. 4.4 A RLB Series Radial 5 - 11.7 mm up to 6 A 8100 Series Toroid Max. 20 A RLB0912 Series Radial 9 mm up to 10 A, 125 ˚C Model 4 Common Mode Inductors Model Description Surge Arrestors Description Model Diodes Description ACTP250J1BJ SMB packaged protector CDNBS04 Series Bridge rectifier 800 V VR SA Series GDT with up to 7,200 V breakover CD2320 Series Bridge rectifier 1,000 V VR 2017 Series Ultra-low profile GDT CD1408 Series Ultra-fast rectifier diode 1,500 V VR Output Filters Transformers FB Short Circuit Protection FB FB = Feedback to Controller Transformers Core Type Power Capability (W) EP5, ER7.5 20 EPC10, EFD10, EPC15 50 EP7, EPC20, EE10, EE13 100 EE16, EE19, EE20,EE25,EPC24 150 EPC125, EPC30, PQ26/20 500 EC35, EC29A, EC28B, FED28A,EC40B, RM14 700 Model Overvoltage Protection Power Inductors Description FB Multifuse® PPTC Resettable Fuses Model Description SRP Series SMD carbonyl powder inductors MF-RHT Series High temperature PPTC (125 ˚C) SRR1280 SMD shielded ferrite inductors MF-LSMF Series SMD 2320 size PPTC with 33 V rating SDR1006 SMD non-shielded ferrite inductors MF-MSMF Series SMD 1812 size PPTC with 60 V rating SRN2012 SMD semi shielded ferrite inductors SRU2013 SMD shielded ferrite inductors Current Sense Resistors Model Description CRE2512 3 W 2512 size SMD CST0612 1 W 0612 4-terminals CRA2512 3W 2512 size SMD SinglFuse™ Thin Film Chip Fuse Model Description SF1206 Max. 63 V 1206 size fuse Thyristor Surge Protectors Model Working Max. Breakover Voltage (V) Voltage (V) TISP4015H1BJ 5 15 TISP4025H1BJ 12 25 5 Bourns® Product Offering INDUCTORS Inductor SRP RL RLB Max. Current Max. Temperature Max. Inductance Max. Current Max. Temperature 47 µH 46 A 150 °C 10,000 µH 20 A 125 °C SRN 2039 SA2 6 Inductor Max. Inductance Max. Current Max. Temperature Max. Inductance Max. Current Max. Temperature 15,000 µH 16 A 125 °C 470 µH 10 A 125 °C Inductor SRF1260A Inductor Max. Inductance Max. Current Max. Temperature Max. Inductance Max. Current Max. Temperature 330 µH 8A 125 °C 4,000 µH 17.6 A 125 °C Inductor 7100 Inductor Max. Inductance Max. Current Max. Temperature Max. Inductance Max. Current Max. Temperature 100,000 µH 10 A 105 °C 2,000 µH 11 A 105 °C Inductor 5300 Inductor Max. Inductance Max. Current Max. Temperature Max. Inductance Max. Current Max. Temperature 82,000 µH 10 A 105 °C 10,000 µH 3.3 A 105 °C SURGE PROTECTORS ACTP250J1BJ Inductor Max. Inductance Inductor SDR SRU SRR FUSIBLE WIREWOUND RESISTORS AC Transient Surge Protector FW Fusible Wirewound Resistor Max. Sparkover Voltage Peak Surge Current Max. Power Max. Resistance Max. 250 V 1,000 A (Indefinite) 7W 100 Ω Gas Discharge Tube Max. Sparkover Voltage Peak Surge Current 1,100 V 5,000 A Gas Discharge Tube Max. Sparkover Voltage Peak Surge Current 7,200 V 5,000 A for 10 Strikes WIREWOUND RESISTORS WS SERIES Wirewound Resistor Max. Power Max. Resistance Max. Peak Surge Voltage 8W 3.3 KΩ 10 kV Multifuse® PPTC Resettable Fuses MF-LSMF MF-MSMF MF-USMF SINGLE BLOW FUSES Multifuse® PPTC Resettable Fuse CRF2512 CRE2512 CST0612 Max. Hold Current Max. Temperature Voltage I2t Current 33 V 3A 85 °C 24 V 5.684A2S 7A Multifuse® PPTC Resettable Fuse SF1206F SinglFuse™ Fast Blow Fuse Max. Voltage Max. Hold Current Max. Temperature Voltage I2t Current 60 V 2.6 A 85 °C 24 V 3.25A2S 7A Multifuse® PPTC Resettable Fuse MF-RHT Multifuse® PPTC Resettable Fuse Voltage Max. Hold Current Max. Temperature Voltage Max. Hold Current Max. Temperature 30 V 1.75 A 85 °C 16 V 13 A 125 °C THYRISTORS Current Sense Resistor TISP4025H1BJ Thyristor Power Min. Resistance Max. Breakover Voltage Voltage Rating 3W 0.01 Ω 25 V 12 V Current Sense Resistor TISP4015H1BJ Thyristor Power Min. Resistance Max. Breakover Voltage Voltage Rating 2W 0.001 Ω 15 V 5V Current Sense Resistor Power Min. Resistance 3W 0.001 Ω Current Sense Resistor Power Min. Resistance 1W 0.0005 Ω POWER RESISTORS PWR263S SinglFuse™ Slow Blow Fuse Max. Voltage CURRENT SENSE RESISTORS CRA2512 SF1206S RECTIFIER DIODES Power Resistor CD2320 Rectifier Diode Max. Power Pulse Max. Current Max. Voltage 35 W 10 J in 0.1 sec 1A 1,000 V 7 Worldwide Sales Offices Country/RegionPhone Fax Americas: Brazil: China: Europe, Middle East, Africa: Japan: Korea: Singapore: Taiwan: +1-951-781-5500+1-951-781-5006 +55 11 5505 0601 +55 11 5505 4370 +86 21 64821250 +86 21 64821249 +36 88 520 390 +36 88 520 211 +81 49 269 3204 +81 49 269 3297 +82 70 4036 7730 +886 2 25624116 +65 6348 7227 +65 6348 1272 +886 2 25624117 +886 2 25624116 Other Asia-Pacific Countries: +886 2 25624117 +886 2 25624116 Technical Assistance RegionPhone Fax Asia-Pacific: Europe, Middle East, Africa: Americas: +886 2 25624117 +886 2 25624116 +36 88 520 390 +36 88 520 211 +1-951-781-5500+1-951-781-5700 www.bourns.com Bourns® products are available through an extensive network of manufacturer’s representatives, agents and distributors. To obtain technical applications assistance, a quotation, or to place an order, contact a Bourns representative in your area. Specifications subject to change without notice. Actual performance in specific customer applications may differ due to the influence of other variables. Customers should verify actual device performance in their specific applications. “Bourns” and “Multifuse” are registered trademarks of Bourns, Inc. in the U.S. and other countries. All references to TBU® in this document for use in Japan shall be deemed to be replaced with Bourns® TBU™. “SinglFuse” is a trademark of Bourns, Inc. in the U.S. and other countries. “TISP” is a registered trademark of Bourns Ltd., a Bourns Company, in the United States and other countries, except that “TISP” is a registered trademark of Bourns, Inc. in China. COPYRIGHT© 2016, BOURNS, INC. • LITHO IN U.S.A. • PSG • 04/16 • 3M/K1612

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