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:
Jun. 29, 2021
Filed:
May. 22, 2020
Daisuke Imade, Isehara, JP;
Hiroki Matsuda, Zama, JP;
Satoshi Arima, Isehara, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A power supply apparatus includes a voltage conversion circuit, a reference voltage generating circuit, a constant current control circuit which includes a current controller and a differential circuit which controls the current controller based on the reference voltage and current detection voltage showing a size of the output current, and wherein an electric current on the current path is controlled by the current controller a reference voltage adjustment circuit which adjusts a first reference voltage generated by the reference voltage generating circuit to converge a ripple occurring in the output current to a predetermined ripple rate or less, based on a voltage of a first potential point set on the current path from an output portion on a high potential side of the voltage conversion circuit to the current controller and a control voltage of the current controller.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile