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. 06, 2025
Filed:
Dec. 09, 2022
Rohm Co., Ltd., Kyoto, JP;
Hironori Sumitomo, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A switch control circuit configured to control a first switch having a first terminal to which a first voltage is applied, and a second switch having a first terminal connected to a second terminal of the first switch and a second terminal to which a second voltage lower than the first voltage is applied. The switch control circuit includes: a first sampling/holding circuit configured to sample and hold a switch voltage generated at a connection node between the first switch and the second switch when the second switch is turned off; a first comparison circuit configured to compare the switch voltage sampled and held by the first sampling/holding circuit with a first constant voltage; and a first dead time adjustor configured to adjust a dead time when the switch voltage rises according to an output of the first comparison circuit.