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. 01, 2021
Filed:
Jan. 24, 2020
Junpei Hosoya, Kanagawa, JP;
Tomoyuki Yamashita, Kanagawa, JP;
Norikazu Okada, Kanagawa, JP;
Takaaki Hirasawa, Kanagawa, JP;
Shunta Yamahori, Kanagawa, JP;
Junpei Hosoya, Kanagawa, JP;
Tomoyuki Yamashita, Kanagawa, JP;
Norikazu Okada, Kanagawa, JP;
Takaaki Hirasawa, Kanagawa, JP;
Shunta Yamahori, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A power supply controlling apparatus includes a first power supply unit that supplies DC power to a load using power supplied from a commercial power supply, a power detecting unit that detects an input voltage and an input current input from the commercial power supply to the first power supply unit, and a control unit that controls the input current to be a constant current having an upper limit current value in response to the input voltage by controlling DC power supplied to the load from the first power supply unit based on the input voltage and the input current which are detected by the power detecting unit.