The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2020
Filed:
Sep. 11, 2018
Shanghai Huahong Grace Semiconductor Manufacturing Corporation, Shanghai, CN;
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.