发明授权
- 专利标题： Switching power supply circuit
- 专利标题（中）： 开关电源电路
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申请号： US14790800申请日： 2015-07-02
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公开(公告)号： US09509216B2公开(公告)日： 2016-11-29
- 发明人: Atsushi Yamaguchi , Yohei Moriyama , Koki Sakamoto
- 申请人： Rohm Co., Ltd.
- 申请人地址： JP Kyoto
- 专利权人： Rohm Co., Ltd.
- 当前专利权人： Rohm Co., Ltd.
- 当前专利权人地址： JP Kyoto
- 代理机构： Fish & Richardson P.C.
- 优先权： JP2014-138499 20140704; JP2015-133232 20150702
- 主分类号： G05F1/575
- IPC分类号： G05F1/575 ; H02M3/156
摘要：
A switching power supply circuit includes: a voltage generation circuit that generates an output voltage by smoothing, with a capacitor, a voltage produced in an inductor; an integration circuit that integrates a switching voltage to generate a first ripple voltage including a first ripple component; a feedback voltage generation circuit that divides the output voltage to generate a feedback voltage; a comparison circuit that compares the feedback voltage with a reference voltage to output the result of the comparison as a comparison result signal; an integration circuit that integrates the comparison result signal to generate a second ripple voltage including a second ripple component; and a drive circuit that controls the turning on and off of a switch element based on the comparison result signal, where the first ripple component and the second ripple component are added to the feedback voltage.
公开/授权文献
- US20160006354A1 SWITCHING POWER SUPPLY CIRCUIT 公开/授权日：2016-01-07
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