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:
Oct. 26, 2021
Filed:
May. 11, 2021
Seeya Optronics Co., Ltd., Shanghai, CN;
Ping-lin Liu, Shanghai, CN;
Chih-pu Yeh, Shanghai, CN;
SEEYA OPTRONICS CO., LTD., Shanghai, CN;
Abstract
A voltage regulator includes an error amplification circuit, a voltage detection circuit, a loop current prevention circuit, a voltage regulation circuit, and a stable voltage output terminal; the voltage regulation circuit outputs a voltage of the second power supply to the stable voltage output terminal when receiving a first control signal and second control signal output by the voltage detection circuit and stops outputting the voltage of the second power supply when receiving a third control signal and fourth control signal output by the voltage detection circuit; the loop current prevention circuit prevents a loop from being formed between the first power supply and the stable voltage output terminal when receiving the first control signal and the second control signal and controls the error amplification circuit to output an error amplification signal to the stable voltage output terminal when receiving the third control signal and the fourth control signal.