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:
Dec. 30, 2025
Filed:
Oct. 05, 2022
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Shinya Karasawa, Kyoto, JP;
Assignee:
ROHM CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/38 (2007.01); H02M 1/08 (2006.01); H02M 1/32 (2007.01); H02M 3/155 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
H02M 1/385 (2021.05); H02M 1/08 (2013.01); H02M 1/322 (2021.05); H02M 3/155 (2013.01); H03K 17/687 (2013.01);
Abstract
A switching controller generates control pulses for specifying on/off states of a first transistor and a second transistor. One end of a capacitor is coupled to a switching node. A constant voltage is applied to the other end of the capacitor via a rectifier element. A dead time controller controls a delay time between adjacent edges of the first control pulse and the second control pulse according to a sensing voltage across both ends of the capacitor.