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:
May. 27, 2025
Filed:
Oct. 24, 2022
Fuji Electric Co., Ltd., Kawasaki, JP;
Yukihiro Yaguchi, Matsumoto, JP;
Takato Sugawara, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
An integrated circuit for controlling switching of a transistor in a power supply circuit. The integrated circuit includes: a first detection circuit configured to detect whether an inductor current has reached a first predetermined value; a signal output circuit configured to operate in a first mode or a second mode; a control circuit configured to control the signal output circuit to operate in the first mode when an amplitude of the first voltage after the inductor current has reached the first predetermined value is smaller than a second predetermined value, and to operate in the first mode or the second mode, corresponding to a condition of a load of the power supply circuit, when the amplitude is larger than the second predetermined value; and a driver circuit configured to turn on and off the transistor based respectively on the signal and a feedback voltage corresponding to the output voltage.