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:
Aug. 02, 2022
Filed:
Dec. 18, 2018
Rohm Co., Ltd., Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
This switching power sourcehas: a switching output circuitwhich drives an inductor current IL by turning on and off an upper switchand a lower switchand generates an output voltage VOUT from an input voltage PVDD; a lower current detection unitwhich detects the inductor current IL flowing through the lower switchduring an ON-period of the lower switchand acquires lower current feedback information Iinfo; an error amplifierwhich outputs voltage feedback information Vinfo including information on an error between the output voltage VOUT (feedback voltage FB) and a reference voltage REF; an information synthesis unitthat generates synthesis feedback information VIinfo by synthesizing Iinfo with Vinfo; and an information holding unitwhich samples Vinfo during the ON-period of the lower switch