最新计算机ATX电源原理及检修技术

Principle and Maintenance Technique of Novel PC ATX Power Supply

本文详细介绍了计算机ATX开关电源的工作原理、电路组成以及一些常见故障的维修方法.重点分析了SB电压产生电路、KA7500B为核心的PWM信号产生电路和ATX电源完善的保护网络.

The operating principle, structure and maintenance of PC ATX power supply are introduced in detail in this article. And SB voltage generating circuit. PWM signal generating circuit controlled by KA7500B and protection network of ATX power supply are also analyzed.