采用PFC电路抑制彩色显示器谐波电流
Application of PFC Circuit in Solution Harmonic Current of Color Monitor
摘要 彩色显示器的功率因数低、谐波电流发射大,严重污染了公用电网。解决彩色显示器谐波电流使之符合有关标准成为各方面关注的问题。本文从电路工作原理出发详细介绍了一种解决谐波电流发射的方法-功率因数校正技术。试验结果表明,该方法行之有效。
关键词 功率因数校正(PFC) 谐波电流 奇谐函数 脉宽调制(PWM) 比较器
Abstract Lower power factor and larger harmonic current of color monitor seriously
pollute public electric network. It is a focus on solving the problem to make color
monitor comply with the interrelated standard. This paper particularly introduces a
method of solving harmonic current from circuit theory—power factor correction
technology. Experiment results indicate the method is feasible and effective.
Keywords power factor correction, harmonic current, odd harmonic function, pulse
with modulation, comparator