A micro ball screw and PWM(Pulse Width Modulation) servo amplifier based on Smart Power IC SPIC are applied in this system. Higher accuracy, band width, linearity, efficiency and linear displacement output are characteristics of the system.

• 该系统采用了航空精密微型滚珠螺旋副和基于智能功率集成电路（SmartPowerIC－SPIC）的PWM（PulseWidthModula－tion）伺服放大器，具有精度高、频带宽、线性度好、效率高和线位移输出方式等特点。