Invention Grant
- Patent Title: Charge pump control circuit
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Application No.: US16127328Application Date: 2018-09-11
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Publication No.: US10536076B2Publication Date: 2020-01-14
- Inventor: Wenyi Zhu , Jun Xiao
- Applicant: Shanghai Huahong Grace Semiconductor Manufacturing Corporation
- Applicant Address: CN Shanghai
- Assignee: Shanghai Huahong Grace Semiconductor Manufacturing Corporation
- Current Assignee: Shanghai Huahong Grace Semiconductor Manufacturing Corporation
- Current Assignee Address: CN Shanghai
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: CN201810581721 20180607
- Main IPC: G05F3/02
- IPC: G05F3/02 ; H02M3/07

Abstract:
A charge pump control circuit is provided in embodiments of the present disclosure, and the charge pump control circuit includes: a charge pump, having a clock interface; a feedback circuit, configured to sample an output voltage of the charge pump to obtain a sampling voltage; a reference voltage generating circuit, having an output terminal outputting a reference voltage; and a comparator, configured to compare the sampling voltage with the reference voltage; wherein the charge pump control circuit further includes: a logic combination circuit, wherein an input terminal of the logic combination circuit is coupled with an output terminal of the comparator, and the logic combination circuit is configured to generate a clock pulse signal according to a comparison result outputted by the comparator, and the clock pulse signal is transmitted to the clock interface of the charge pump.
Public/Granted literature
- US20190379280A1 CHARGE PUMP CONTROL CIRCUIT Public/Granted day:2019-12-12
Information query
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