Main switch control circuit in power factor correction circuit

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专利权人:

INVENTRONICS (HANGZHOU), INC.

发明人:

Jiang Delai,Ge Liang'an,Wu Lian

申请号：

US201314764605

公开号：

US9692294(B2)

申请日:

2013.12.04

申请国别(地区):

美国

年份:

2017

代理人:

Harness, Dickey & Pierce, P.L.C.

摘要：

A control circuit in a power factor correction (PFC) circuit includes: a multiplier, used for multiplying a voltage sampling signal by a feedback signal, and outputting a first signal; and a waveform generating module, used for generating a second signal related to a filter capacitor connected in parallel to an input end and/or an output end of a rectifier bridge. A control signal for controlling a state of a main switch transistor is generated by using the first signal, the second signal, and a current sampling signal of the main switch transistor in the PFC circuit.

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中国工程科技知识中心

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