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:
Jul. 21, 2026
Filed:
Jul. 03, 2024
Rohm Co., Ltd., Kyoto, JP;
Daisuke Uchimoto, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A linear power supply circuit includes: an output stage including a first and a second output transistor connected in parallel between an input terminal to which an input voltage is applied and an output terminal to which an output voltage is applied; a driver configured to drive the first and second output transistors according to the difference between a voltage based on the output voltage and a reference voltage; and a potential difference suppressor configured to suppress the potential difference between the control terminals of the first and second output transistors. The potential difference suppressor includes an operational amplifier. The non-inverting input terminal of the operational amplifier is connected to the control terminal of the first output transistor. The inverting input terminal and the output terminal of the operational amplifier are connected to the control terminal of the second output transistor. The operational amplifier includes a phase compensation element.