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:
Jul. 15, 2025
Filed:
Oct. 16, 2023
Sigmastar Technology Ltd., Fujian, CN;
Wei-Ping Wang, Taiwan, CN;
SIGMASTAR TECHNOLOGY LTD., Fujian, CN;
Abstract
A voltage detection device includes: a reference voltage latch circuit, outputting one of a first set of reference voltages and a second sets of reference voltages lower than the first set of reference voltages, as a third set of reference voltages according to a selection signal, and being selectively to be reset or to continue outputting the one of the first and second sets of reference voltages as the third set of reference voltages according to a first detection signal; a first voltage detector, generating the first detection signal according to a fourth set of reference voltages lower than or equal to the first set of reference voltages and an input voltage; a second voltage detector, generating a second detection signal according to the third set of reference voltages and the input voltage; and a digital circuit, generating the selection signal according to the second detection signal.