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:
Jul. 14, 2020
Filed:
Feb. 22, 2017
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Tomohisa Yoshie, Sakai, JP;
Atsushi Fukui, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
An object of the present disclosure is to suppress deterioration of a single cell in a power supply device that uses a solar cell module including a plurality of single cells so as to extend the performance retention time of the solar cell module. The power supply device comprises a solar cell module including a plurality of solar cells that are electrically connected in series; and an output control circuit that supplies the electric power generated by the solar cell module to the load when an output voltage of the solar cell module increases and reaches a predetermined first voltage V, and that interrupts the supplying of the electric power generated by the solar cell module to the load when the output voltage of the solar cell module decreases and reaches a predetermined second voltage V, wherein the second voltage Vis lower than the first voltage Vand is higher than a second highest output voltage of output voltages of the solar cell module corresponding to inflection points in a current-voltage characteristic of the solar cell module.