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:
Nov. 11, 2025
Filed:
Jan. 12, 2023
Ntt Docomo, Inc., Tokyo, JP;
NTT DOCOMO, INC., Tokyo, JP;
Abstract
An objective is to provide a direct current (DC) power supply system capable of maximally generating electric power in a solar power generation process in consideration of an operation state of a load device serving as a power supply destination. In a rectifier (), a traffic volume acquisition unit () acquires an operation state (traffic volume) of a communication device (), and a power calculation unit () acquires power consumption of the communication device () corresponding to the traffic volume. Moreover, the power calculation unit () acquires output power from the rectifier (). A power comparison unit () acquires electric power generated by a solar power generation device () on the basis of power consumption (W) of the communication device () and output power (P') of the rectifier (). A search operation voltage decision unit () decides a rectifier voltage of the rectifier () using a sign of a search voltage (dv) decided by a sign inversion unit () so that the electric power generated by the solar power generation device () is increased.