介绍了一种脉宽调制型功率因数测量电路的工作原理。
Introduced the principles of pulse modulating circuit for measuring power factor.
本文介绍一种脉宽调制型(PWM)逆变器异步电机变频调速系统稳态分析的直接数字计算方法。
A kind of direct numerical calculation method for the steady-state analysis of PWM inverter-fed induction motor drives was presented.
介绍了利用国内常用的脉宽调制型集成控制器对国外装置上开关电源的PWM控制芯片的替换设计。
By means of the commonly-used domestic variable duration impulse integrated controller, alternative design was carried out on PWM control chip of switching power on overseas equipments.
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