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:
Feb. 07, 2023
Filed:
Sep. 21, 2021
Applicant:
Nuvoton Technology Corporation, Hsinchu, TW;
Inventors:
Yeh-Tai Hung, Hsinchu Science Park, TW;
Tu-Yiin Chang, Hsinchu Science Park, TW;
Assignee:
NUVOTON TECHNOLOGY CORPORATION, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 3/24 (2006.01); G05F 1/565 (2006.01); G05F 1/46 (2006.01);
U.S. Cl.
CPC ...
G05F 3/24 (2013.01); G05F 1/461 (2013.01); G05F 1/565 (2013.01);
Abstract
A reference voltage circuit is disclosed. In the reference voltage circuit, a comparator compares a reference voltage and a voltage of a capacitor, so as to output a comparison signal; a controller checks conditions of the reference voltage and the leakage current based on the comparison signal; when a voltage of the capacitor is reduced too quickly, the controller adjusts a switching frequency of a switch device to effectively maintain the voltage of the capacitor.