- 专利标题： Charge pump and switch control circuit
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申请号： US14446502申请日： 2014-07-30
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公开(公告)号： US09837893B2公开(公告)日： 2017-12-05
- 发明人: Taesung Kim , Dong-Jin Park , Seung-Uk Yang
- 申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
- 申请人地址： KR Bucheon
- 专利权人： Fairchild Korea Semiconductor Ltd.
- 当前专利权人： Fairchild Korea Semiconductor Ltd.
- 当前专利权人地址： KR Bucheon
- 代理机构： Okamoto & Benedicto LLP
- 优先权： KR10-2014-0094251 20140724
- 主分类号： H02M3/07
- IPC分类号： H02M3/07 ; H02M3/156 ; H02M3/335 ; H02M1/00
摘要：
A charge pump includes: a first diode that is connected to a first node; a second diode that is connected to a second node; a pump capacitor that is connected to a third node to which the first diode and the second diode are connected; a power supply capacitor that is connected to the pump capacitor; a third diode that is connected between the pump capacitor and the power supply capacitor; and a zener diode that is connected in parallel to the third diode and the power supply capacitor. A power supply device decreases a ripple of an output current using a ripple reduction signal.
公开/授权文献
- US20150035512A1 Charge Pump and Switch Control Circuit 公开/授权日：2015-02-05
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