一种基于TOPSwitch—GX的变频器开关电源

A Switching Power Supply Basedon TOPSwitch-GX for Frequency Converter

设计了一种基于TOPSwitch—GX的变频器专用开关稳压电源。该电源给系统控制板以及IGBT驱动电路供电,并保证该开关电源的电压稳定。文中主要介绍了TOPSwitch—GX系列芯片的特点、工作原理以及开关电源的设计,并着重分析了变压器的设计。该开关电源经现场检验,性能良好,满足设计的要求。

A switching power supply based on TOPSwitch- GX for frequency converter system is recommended. The power supplies for the control board and the IGBT driver circuits, it moreover keeps the voltage steady . The feature and the principle of the TOPSwitch-GX series is introduced mostly,it presents the design of the switching power supply , and it emphasizes on transformer design. This switching power supply is used in SRM control system and runs well.