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:
Feb. 03, 2026
Filed:
Oct. 30, 2023
Rohm Co., Ltd., Kyoto, JP;
Shun Fukushima, Kyoto, JP;
Tomohisa Shinozaki, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
The present disclosure provides a switch drive circuit. The switch drive circuit is configured to drive a load switch that is a PMOS transistor connected between a high-side transistor and a load. The switch drive circuit is configured to be switchable between (i) a first mode in which the PMOS transistor is fully turned on and (ii) a second mode in which a drive voltage corresponding to the output signal of the first error amplifier is supplied to a gate of the PMOS transistor. A charge pump circuit is configured to operate at least during startup of a boost DC/DC converter. A first rectifying element is configured to apply an output voltage of the charge pump circuit to a bootstrap pin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile