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:
Oct. 07, 2025
Filed:
May. 19, 2022
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Keizo Matsumoto, Okayama, JP;
Shinichi Watanabe, Osaka, JP;
Abstract
A power-supply stabilization circuit includes: a first transistor disposed in a second path; a second transistor disposed in a third path; a third transistor current mirror-connected to the first transistor; a fourth transistor current mirror-connected to the second transistor; a differential amplifier; and a first low-pass filter connected between a node and a fifth path. The differential amplifier performs inverting amplification on a difference between a reference voltage and a voltage of an added signal obtained by adding a constant-voltage signal outputted from a constant-voltage power supply and an output signal of the first low-pass filter, and outputs a difference signal obtained by the inverting amplification to the first transistor and the second transistor.