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:
Apr. 06, 2021
Filed:
Jan. 15, 2020
Applicant:
Winbond Electronics Corp., Taichung, TW;
Inventor:
Hiroki Murakami, Taichung, TW;
Assignee:
Winbond Electronics Corp., Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01); H02M 3/07 (2006.01); G11C 16/30 (2006.01);
U.S. Cl.
CPC ...
H02M 3/073 (2013.01); G11C 16/30 (2013.01);
Abstract
A charge pump circuit that suppresses low boost efficiency is provided. The charge pump circuitof the invention includes a main pump circuit CPn_M and a gate controlling pump circuit CPn_G controlling the main pump circuit CPn_M. The main pump circuit has the same basic configuration as the controlling pump circuit, which are both KER-type pump circuits. The controlling pump circuit controls the operation of a transistor of the main pump circuit after the main pump circuit is boosted, so that reverse current will not flow from the main pump circuit to the forward section of the pump circuit.