Invention Grant
- Patent Title: PFC control circuit, digital PFC circuit and the method thereof
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Application No.: US14737459Application Date: 2015-06-11
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Publication No.: US09812950B2Publication Date: 2017-11-07
- Inventor: Wenbin Lu , Sicong Lin , Qiming Zhao , Lijie Jiang , Guangchao Zhang
- Applicant: Chengdu Monolithic Power Systems Co., Ltd.
- Applicant Address: CN Chengdu
- Assignee: Chengdu Monolithic Power Systems Co., Ltd.
- Current Assignee: Chengdu Monolithic Power Systems Co., Ltd.
- Current Assignee Address: CN Chengdu
- Agency: Perkins Coie LLP
- Priority: CN201410257725 20140611
- Main IPC: H02M1/42
- IPC: H02M1/42 ; H02M1/00
Abstract:
A digital PFC circuit with improved power factor is described. The digital PFC circuit uses a compensation current generating unit and a reference current adjust unit to eliminate the effect of a current flowing through an input capacitor to the input current, so that the input current and the input line voltage of the digital PFC circuit are controlled to be in-phase.
Public/Granted literature
- US20150364988A1 PFC CONTROL CIRCUIT, DIGITAL PFC CIRCUIT AND THE METHOD THEREOF Public/Granted day:2015-12-17
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