一种简单可靠的正激开关电源设计  

A Simple and Reliable Design of Forward Switching Power Supply

作　　者：彭洋[1] PENG Yang(China Airborne Missile Academy,Luoyang 471000,China)

机构地区：[1]中国空空导弹研究院,河南洛阳471000

出　　处：《通信电源技术》2023年第15期37-39,共3页Telecom Power Technology

摘　　要：设计了一种基于ADP1074控制器的正激式开关电源转换器。ADP1074内部集成了有源钳位控制电路,能降低主开关金属氧化物半导体场效应晶体管(Metal Oxide Semiconductor field effect transistor,MOSFET)的电压应力。同时,芯片内部集成了独特的耦合器,可以将同步整流的反馈和时序信号在初级与次级之间传递,省略线性光耦、采样电路以及次级侧的同步整流电路。使用ADP1074能够简化电路设计,减少布板面积,增强电路可靠性。The article designs a forward switching power converter based on ADP1074 controller.ADP1074 integrates an active clamp control circuit internally,which can reduce the voltage stress of the main switch Metal Oxide Semiconductor Field Effect Transistor(MOSFET).At the same time,a unique coupler is integrated inside the chip,which can transmit feedback and timing signals of synchronous rectification between the primary and secondary sides.Therefore,the circuit can omit linear optocouplers,sampling circuits,and synchronous rectification circuits on the secondary side.Using ADP1074 can simplify circuit design,reduce board area,and enhance circuit reliability.

关 键 词：ADP1074 有源钳位 同步整流 正激开关电源 

分 类 号：TM41[电气工程—电器]