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:
Apr. 16, 2024
Filed:
Jun. 03, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Kazuo Takenaka, Osaka, JP;
Takashi Higashide, Osaka, JP;
Katsunori Atago, Fukushima, JP;
Youichi Kageyama, Osaka, JP;
Hisao Hiragi, Osaka, JP;
Yugo Setsu, Osaka, JP;
Hiroki Nishinaka, Osaka, JP;
Shinichi Tanida, Osaka, JP;
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Kadoma, JP;
Abstract
A backup power system according to the present disclosure includes a battery, a charging circuit, power storage, a first load, a second load, and a controller that controls the charging circuit. The controller causes an input current at the charging circuit to increase at a first rate of change in response to a start signal. When the controller detects an increase in a charging voltage at the power storage up to a first voltage at which driving of the first load is possible, the controller controls the charging circuit to cause the input current at the charging circuit to increase at a second rate of change lower than the first rate of change. The charging circuit is controlled by the controller to cause the input current to increase at the second rate of change, and the charging voltage at the power storage increases up to a second voltage at which driving of both the first load and the second load is possible.