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. 13, 2025
Filed:
Feb. 21, 2024
Rohm Co., Ltd., Kyoto, JP;
Shidong Guan, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A switching power supply includes a switching output stage configured to generate an output voltage by rectifying and smoothing a switching voltage that is pulse-driven as an output transistor is turned on and off. An oscillation circuit is configured to generate an on signal that alternates between an on period and an off period at a predetermined switching frequency, and a logic circuit is configured to set the on period of the on signal as a maximum on period of the output transistor. The oscillation circuit is configured to skip the off period of the on signal when, despite the output transistor being kept on for the maximum on period, the output voltage drops below a target value.