提出了一种基于临界电流模式的峰值电流控制技术来实现开关电源的功率因数校正任务。

A critical current mode based on the peak current control technology to achieve switching power supply power factor correction task is proposed.

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首先论述了临界电流模式的峰值电流控制技术的基本思想，其次论述了采用控制芯片ucc 38051制作了一台输出功率为100w的原理样机。

Firstly it expounds peak current control technology of the critical current mode, then discusses a 100w laboratory prototype based on control chip UCC38051.

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本文讨论了功率因数校正的方法，分析了电感电流工作于临界模式的升压式有源功率因数校正电路的原理。

In this paper, the methods of power factor correction are discussed, and the principal of boost active power factor correction circuit operated in critical inductor current mode is analyzed in detail.

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