Recommended Typical Application Circuit 1 2 4 3 Switching Power Supply Typical Application Circuit + L2 D1 D + D3 T3 Vo D ip C1 D2 L1 E D1 * T E Lp Ls RL Co is Q1 + RL * ton Q1 toff - - Fig1 Single Terminal Forward Converter Circuit Fig2 Single Terminal Reverse Converter Circuit + + D1 Q1 C1 Q1 D1 Q2 D2 D3 Q3 D4 Q4 b1 D2 C Q2 T1 C2 T1 C b2 - D3 D5 D4 L L + Co WT1 T1 Q2 Vo Fig 4 Full-Bridge Power Converter Circuit L - + Co Vo Fig 3 Half-Bridge Power Converter Circuit Q1 D6 + C D1 + D2 WT2 B B Fig5 Push-Pull Power Converter Circuit A A Title Size Number Revision A4 Date: File: 1 2 7-Jul-2011 Sheet of Drawn 型应用电路 By: .ddb F:\旧电脑G盘\protel 99se\Examples\稳压二极管典 3 1/9 4 Recommended Typical Application Circuit 1 2 4 3 Typical Application Circuit CJ78XX/CJ79XX D D CJ78XX/CJ79XX Vi V IN C1 V OUT GND CJ78XX/CJ79XX + Vo V IN C2 Vi 0.33uF 0.1uF G V OUT GND COM IL -Vo - Fig1 Fixed Output Regulator Fig2 Positive Output Regulator with Negative Connection Mode (Vi must be floated) CJ78XX/CJ79XX Vi V IN Vo V OUT CJ78XX/CJ79XX Vi GND Io R1 C1 C C1 V IN C2 0.33uF 0.33uF 0.1uF R2 V OUT GND C Vo(Reg) R1 Vo Io Io=(Vo/R1)+IoBias Current Fig3 Adj ustable Output Regulator Fig4 Constant Current Regulator D1 CJ78XX/CJ79XX Vi V IN C1 Vo V OUT GND C2 D2 B 0.33uF B 0.1uF C3 C4 D4 0.33uF 0.1uF GND Vi Vo V V OUT IN CJ79XX/CJ78XX D3 Fig5 Dual Output Regulator Circuit A A Title Size Number Revision A4 Date: File: 1 2 30-Jun-2011 Sheet of F:\旧电脑G盘\protel 99se\Examples\CJ1117.ddbDrawn By: 3 2/9 4 Recommended Typical Application Circuit 1 2 4 3 Typical Application CIircuit CJ78MXX D D CJ78MXX Vi V IN C1 V OUT GND CJ78MXX + Vo V IN C2 Vi 0.33uF 0.1uF G V OUT GND COM IL -Vo - Fig1 Fixed Output Regulator Fig2 Positive Output Regulator with Negative Connection Mode (Vi must be floated) CJ78MXX Vi V IN Vo V OUT GND Io CJ78MXX Vi R1 C1 C C1 V IN C2 0.33uF 0.33uF 0.1uF R2 V OUT GND C Vo(Reg) R1 Vo Io Io=(Vo/R1)+IoBias Current Fig3 Adj ustable Output Regulator Fig4 Constant Current Regulator B B A A Title Size Number Revision A4 Date: File: 1 2 30-Jun-2011 Sheet of F:\旧电脑G盘\protel 99se\Examples\CJ1117.ddbDrawn By: 3 3/9 4 Recommended Typical Application Circuit 1 2 4 3 Typical Application Circuit CJ78LXX/CJ79LXX D D CJ78LXX/CJ79LXX Vi V IN C1 V OUT GND CJ78LXX/CJ79LXX + Vo V IN C2 Vi 0.33uF 0.1uF G V OUT GND COM IL -Vo - Fig1 Fixed Output Regulator Fig2 Positive Output Regulator with Negative Connection Mode (Vi must be floated) CJ78LXX/CJ79LXX Vi V IN Vo V OUT CJ78LXX/CJ79LXX Vi GND Io R1 C1 C1 V IN 0.33uF C 0.33uF 0.1uF R2 V OUT GND C2 Vo(Reg) C R1 Vo Io Io=(Vo/R1)+IoBias Current Fig3 Adj ustable Output Regulator Fig4 Constant Current Regulator D1 CJ78LXX/CJ79LXX Vi V IN Vo V OUT GND C1 C2 D2 B 0.33uF B 0.1uF C3 C4 D4 0.33uF 0.1uF GND Vi Vo V V OUT IN CJ79LXX/CJ78LXX D3 Fig5 Dual Output Regulator Circuit A A Title Size Number Revision A4 Date: File: 1 2 30-Jun-2011 Sheet of F:\旧电脑G盘\protel 99se\Examples\CJ1117.ddbDrawn By: 3 4/9 4 Recommended Typical Application Circuit 1 2 4 3 Typical Application Circuit CJ431 D D Q1 RCL 0.1% Vi Vo Vi R3 Io Vo R1 0.1% R1 Vref CJ431 CJ431 R2 0.1% Io=Vref/RCL+Ik R1=V+ /(Io/hFE+Ik) Vo=(1+R1/R2)*Vref At the Vi minimum, R3 should prov ide the greater than or equal to negativ e current of 1mA for CJ431 Fig1 Current Limit or Current Sourse Fig2 Shunt Regulator CJ7805 C Vi V IN V OUT GND Common Vo Vi R4 R1 C Vo R1 R3 Q1 CJ431 R2 CJ431 R2 Vo=Vref *(1+R1/R2) M in V=Vref+5V Vo=(1+R1/R2)*Vref Fig3 Output Control for Three -Termianl Fixed Regulator Fig4 High Current Shunt Regulator Q1 Vi Vi Io Vo~5V B B R1 Rb 27kΩ 0.1% Q1 CJ431 CJ431 Rs 0.1% 27kΩ 0.1% Rb should provide the greater than or equal to negativ e current of 1mA for CJ431 Io=Vref/Rs Fig5 Constant-Current Sink Fig6 High Precision 5V Regulator A A Title Size Number Revision A4 Date: File: 1 2 7-Jul-2011 Sheet of F:\旧电脑G盘\protel 99se\Examples\CJ1117.ddbDrawn By: 3 5/9 4 Recommended Typical Application Circuit 1 2 4 3 Typical Application Circuit(Basic Connections) CJ1117-XX D D CJ1117-XX Vin V IN Vo V OUT GND + + 10uF Tantalum 10uF Tantalum Fig1 Fixed-Voltage Regulator CJ1117(Adj) Vin V IN Vo V OUT GND R1 C + C1 10uF + C3 10uF + C2 10uF Load C R2 Vo=Vref (1+R2/R1)+ladj*R2 Fig2 Adjustable-Voltage Regulator B B A A Title Size Number Revision A4 Date: File: 1 2 7-Jul-2011 Sheet of F:\旧电脑G盘\protel 99se\Examples\CJ1117.ddbDrawn By: 3 6/9 4 Recommended Typical Application Circuit 1 2 4 3 Typical Application Circuit LT1084 D D LT1084 Vin5V VIN Vout 3.3V VOUT ADJ RF1 125Ω 1% Vref + + C1 10uF C2 10uF RF2 205Ω 1% Vref =Vout-Vadj=1.25V(typ.) Vout=Vref *(1+RF2/RF1)+Iadj*RF2 C C Iadj=55uA(ty p.) C1 needed if dev ice is far away f rom f ilter capacitors. C2 required f or stability . Fig1 Adjustable Voltage Regulator Vin5V V IN Vo3.3V V OUT GND + C1 10uF + C2 10uF Fig2 Fixed-Voltage Regulator B B A A Title Size Number Revision A4 Date: File: 1 2 7-Jul-2011 Sheet of F:\旧电脑G盘\protel 99se\Examples\LT1084.ddbDrawn By: 3 7/9 4 Recommended Typical Application Circuit 1 2 4 3 TYPICAL APPLICATION CIRCUIT LM317 D D LM317 Vi V IN D1 Vo V OUT GND LM317 R1 C1 0.1uF Vi Co 1uF V IN R2 Iadj Vo V OUT GND 1uF 120Ω Q1 720Ω 1KΩ Vo=1.25V*(1+R2/R1)+Iadj*R2 C1 is required when regulator is located an appreciated distance f rom power supply Co is needed to improv e transient response TTL Level Signal Fig1 Programmable Voltage Regulator Fig2 Regulator with On-off Control C C LM317 Vi V IN Vi Vo V OUT GND LM317 V IN D1 Vadj R1 240Ω Vo R2 V OUT GND Io Iadj 50KΩ R2 Q1 10uF Iomax=Vref/R1+Iadj=1.25V/R1 Iomin=Vref/(R1+R2)+Iadj=1.25V/(R1+R2) 5mA<Io<100mA Fig3 Soft Start Application Fig4 Consant Current Application B B A A Title Size Number Revision A4 Date: File: 1 2 6-Jul-2011 Sheet of F:\旧电脑G盘\protel 99se\Examples\CJ1117.ddbDrawn By: 3 8/9 4 Recommended Typical Application Circuit 1 2 3 4 Zener DiodeTypical Application Circuit J +5V +115V EC R1 + R3 D D D1 StandbyLine of Control RL Vs Q1 D1 Rs R2 GND GND Fig1 Surge Protection Circuit Fig2 Over-voltage Protection Circuit in the TV + +25V R Q1 SW RS +12V L Vs D (13V) D1 - Fig3 Arc Suppression Circuit Fig4 Series Voltage Regulator C C B B A A Title Size Number Revision A4 Date: File: 1 2 29-Jun-2011 Sheet of Drawn 型应用电路 By: .ddb F:\旧电脑G盘\protel 99se\Examples\稳压二极管典 3 9/9 4