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:
Aug. 16, 2016
Filed:
Apr. 22, 2016
Via Alliance Semiconductor Co., Ltd., Shanghai, CN;
Yeong-Sheng Lee, Fremont, CA (US);
VIA ALLIANCE SEMICONDUCTOR CO., LTD., Shanghai, CN;
Abstract
A charge pump includes a switching circuit, a constant current source, a constant current sink, an adaptive current source, and an adaptive current sink. The switching circuit generates an output voltage at an output node according to an up control signal and a down control signal. The constant current source supplies a first current to the switching circuit. The constant current sink draws a second current from the switching circuit. The adaptive current source supplies a third current to the switching circuit. The adaptive current sink draws a fourth current from the switching circuit. The third current and the fourth current are adjustable according to the up control signal and the down control signal.