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:
Aug. 18, 2020
Filed:
Dec. 18, 2017
New Japan Radio Co., Ltd., Chuo-ku, Tokyo, JP;
NEW JAPAN RADIO CO., LTD., Chuo-Ku, Tokyo, JP;
Abstract
A power supply circuit includes an output transistor which adjusts an input voltage and generates an output voltage, an error amplifier which generates a control voltage for the output transistor according to a difference between a feedback voltage corresponding to the output voltage and a reference voltage, an overcurrent protection circuit which controls the error amplifier according to a result of monitoring the control voltage and controls the control voltage so as to drop the output voltage, and an undershoot detection circuit Which detects an undershoot of the output voltage and controls the control voltage for the output transistor so as to suppress the output voltage from dropping.