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:
Nov. 15, 2022
Filed:
Jul. 06, 2021
Winbond Electronics Corp., Taichung, TW;
Takahiko Sato, Yokohama, JP;
WINDBOND ELECTRONICS CORP., Taichung, TW;
Abstract
A power supply control circuit that is able to reliably discharge to the internal power supply, even when the external power supply is cut off instantaneously. The power supply control circuit includes a voltage detection unit, an internal power supply generation unit, and a control unit. The voltage detection unit detects the voltage of the external power supply. The internal power supply generation unit generates the internal power supply, according to the external power supply. The control unit controls the discharging to the internal power supply according to at least the second control signal among the first control signal and the second control signal, when the detected voltage of the external power supply drops below the predetermined value.