Invention Grant
US08664982B2 Buck-boost power converter with feed-forward technique for achieving fast line response
有权
降压 - 升压功率转换器，具有前馈技术，实现快速线路响应
- Patent Title: Buck-boost power converter with feed-forward technique for achieving fast line response
- Patent Title (中): 降压 - 升压功率转换器，具有前馈技术，实现快速线路响应
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Application No.: US12720022Application Date: 2010-03-09
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Publication No.: US08664982B2Publication Date: 2014-03-04
- Inventor: Ke-Horng Chen , Pin-Chin Huang , Hsin-Hsin Ho
- Applicant: Ke-Horng Chen , Pin-Chin Huang , Hsin-Hsin Ho
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technoloy Corp.
- Current Assignee: Richtek Technoloy Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: TW98108281A 20090313
- Main IPC: H03K4/06
- IPC: H03K4/06
Abstract:
A buck-boost power converter includes a power stage to convert an input voltage to an output voltage, an error amplifier to generate an error signal according to a reference voltage and a feedback signal proportional to the output voltage, a ramp generator to provide two ramp signals, and two comparators to generate two control signals according to the error signal and the two ramp signals to drive the power stage. By using feed-forward technique, one of the two ramp signals has a peak varying with the input voltage and the other ramp signal has a valley varying with the input voltage, so that the power converter has fast line response.
Public/Granted literature
- US20100231272A1 BUCK-BOOST POWER CONVERTER WITH FEED-FORWARD TECHNIQUE FOR ACHIEVING FAST LINE RESPONSE Public/Granted day:2010-09-16
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