用于磁场测量的高精度500A/30V零压开关直流稳流电源

DC Power Supply (500 A/30 V) With Zero-voltage-switch and High Stability Current for the Magnetic Field Measurement

研制了一种带有无源辅助网络的全桥移相脉宽调制零压开关(FB PSPWMZVS)高精度磁铁稳流电源,并在电磁铁磁场测量中得到应用,其电流稳定度在8h内优于±1×10-4。

A DC power supply of full bridge phase shift pulse-width modulation zero-voltage-switch (FB-PS PWM ZVS) with passive auxiliary network is developed, which is used in magnetic field measurement. From the testing data, the current stability of this power supply is better than ±1×10-4 per 8 h.