In this paper , a three phases high - voltage power mos gate drive integrated circuit has been researched and designed successfully . it is a typical spic , which could be widely used in high power motor control and switching power supply applications . the design goal of the circuit are v0ffset ( max ) is 500v , ia ( m ~ ) is 1 a , the highest frequency of operation ( f ( ~ x ) ) is 100khz 本文研制成功了一种可广泛用于大功率电机控制、开关电源等应用中的spic电路?三相高压功率mos栅驱动集成电路,其设计指标要求为:最高偏置电压( voffset ( max ) )为500v 、最大输出电流( i _ o ( max ) )为1a 、最高工作频率为100khz 。