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. 05, 2021
Filed:
Jan. 26, 2021
Upi Semiconductor Corp., Zhubei, TW;
Chia-Lung Wu, Zhubei, TW;
UPI SEMICONDUCTOR CORP., Zhubei, TW;
Abstract
A power switch circuit is disclosed. The power switch circuit includes an input terminal, an output terminal, a power switch, a control circuit and a voltage holding circuit. The power switch is coupled between the input terminal and the output terminal. The power switch has a control terminal. The control circuit is coupled to the input terminal and the output terminal respectively. The control circuit compares a first voltage of the input terminal with a second voltage of the output terminal to generate a control signal. The voltage holding circuit is coupled to the control circuit and the control terminal. The voltage holding circuit provides a default voltage larger than 0 V to the control terminal according to the control signal.