Invention Grant
- Patent Title: Charge pump and switch control circuit
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Application No.: US14446502Application Date: 2014-07-30
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Publication No.: US09837893B2Publication Date: 2017-12-05
- Inventor: Taesung Kim , Dong-Jin Park , Seung-Uk Yang
- Applicant: FAIRCHILD KOREA SEMICONDUCTOR LTD.
- Applicant Address: KR Bucheon
- Assignee: Fairchild Korea Semiconductor Ltd.
- Current Assignee: Fairchild Korea Semiconductor Ltd.
- Current Assignee Address: KR Bucheon
- Agency: Okamoto & Benedicto LLP
- Priority: KR10-2014-0094251 20140724
- Main IPC: H02M3/07
- IPC: H02M3/07 ; H02M3/156 ; H02M3/335 ; H02M1/00
Abstract:
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.
Public/Granted literature
- US20150035512A1 Charge Pump and Switch Control Circuit Public/Granted day:2015-02-05
Information query
IPC分类:
