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:
Sep. 05, 2017
Filed:
Apr. 23, 2015
Rohm Co., Ltd., Ukyo-Ku, Kyoto, JP;
Jun Maede, Kyoto, JP;
Isao Yamamoto, Kyoto, JP;
Shinya Karasawa, Kyoto, JP;
Shigenobu Shimohagi, Kyoto, JP;
Yuichi Shinozaki, Kyoto, JP;
ROHM CO., LTD., Ukyo-Ku, Kyoto, JP;
Abstract
A power supply circuit is configured including a control circuit together with an output circuit including an external circuit component. A switching controller controls a switching transistor and a synchronous rectification transistor each configured as a switching element. A degradation detection circuit monitors a detection signal having a correlation with characteristic degradation of the circuit component, and detects the degree of characteristic degradation of the circuit component. The switching controller is capable of changing its operation according to the degree of characteristic degradation of the circuit component.