一种反激式双输出DC/DC变换器的设计与实现  

Design and Implementation of a Dual-Output Flyback Switching DC/DC Converter

作　　者：朱保彬 张小玲[1] 谢雪松[1] 关童童 

机构地区：[1]北京工业大学可靠性物理研究室,北京100124

出　　处：《测控技术》2014年第10期123-125,共3页Measurement & Control Technology

摘　　要：针对市场上DC/DC开关电源高压输出时,输出电压纹波较大问题,介绍了一种±50 V双输出DC/DC开关电源的设计方法及测试结果。该电路采用电流控制型PWM控制芯片,工作于反激模式。输入输出通过光耦实现隔离。该DC/DC变换器具有带负载能力强、纹波低、输出电压高等特点,可为电子设备提供稳定的供电电压。Aimed at the problems that the output voltage ripple is larger when DC/DC switching power supply high voltage output, a design method and test result of a ±50 V dual-output DC/DC switching power are introduced. This circuit uses PWM control chip, which works in flyback mode. The input and output achieve isolation through the optocoupler. The converter features high load capacity, low ripple, high output voltage, and it can provide a stable supply voltage for electronic equipment.

关 键 词：DC/DC 滤波电路 光耦隔离 

分 类 号：TM46[电气工程—电器]