Title:
スイッチング電源システム及び直流給電システム
Document Type and Number:
Japanese Patent JP7018847
Kind Code:
B2
Abstract:
Provided is a switching power source system comprising a plurality of switching power sources that are connected in parallel between a plurality of power supply sources and a load, wherein a current can be appropriately supplied to the load from each switching power source. The switching power source system comprises: the plurality of switching power sources configured so that a direct current is input from each of the plurality of power supply sources and a direct current is output to a common output terminal; and a plurality of droop control circuits that are respectively provided to the plurality of switching power sources, and that control the duty ratio of a PWM signal that drives a switching element of each switching power source. The switching power source system, wherein the droop control circuits detect an output voltage of the common output terminal and an output current output by each switching power source, and perform feedback amplification by generating a voltage that controls the duty ratio so as to obtain a droop characteristic in which the output voltage decreases when the output current increases.
Inventors:
Shoji Haneda
Application Number:
JP2018146857A
Publication Date:
February 14, 2022
Filing Date:
August 03, 2018
Export Citation:
Assignee:
ntn corporation
International Classes:
H02M3/28
Domestic Patent References:
| JP201011567A | ||||
| JP2008109840A | ||||
| JP2005522169A | ||||
| JP61262821A |
Foreign References:
| WO2015050093A1 | ||||
| WO2017094403A1 |
Attorney, Agent or Firm:
Takashiro Kojima
Noriko Kawai
Noriko Kawai