摘要
本文论述了采用N沟道VMOS开关管构成的功率步进电动机驱动电源的设计，给出了电源中的斩波限流电路和调频调压电路。
The design of drive power supply for power stepping motor is described. It uses 'channel VMOSFET switching devices. The chop current limited circuit and frequency andvoltage adjusted circuit are presented.
