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. 29, 2019
Filed:
Aug. 28, 2018
Fuji Electric Co., Ltd., Kanagawa, JP;
Hiroshi Maruyama, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
A switched-mode power supply circuit that performs a burst-mode operation to stop and restart switching is provided, including: a power supply that supplies DC voltage; a switching element that controls the switching; a first comparator that detects an output voltage of the switched-mode power supply circuit; a storage element that stores an output of the first comparator according to a timing of controlling the switching; and a determination unit that measures a time period for which at least one of an output of the first comparator or an output of the storage element continues to be higher than the predetermined voltage, and if the measurement is not reset within a predetermined elapsed time, determines that the switched-mode power supply circuit is in an overvoltage state, wherein the switched-mode power supply circuit resets the measurement at a timing corresponding to a switching stop timing in the burst-mode operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile