Title:
POWER SUPPLY DEVICE PROVIDED IN IMAGE FORMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/106133
Kind Code:
A1
Abstract:
The present invention provides a power supply device 10A which can achieve power savings for an image formation device without neglecting the required removal of noise. This power supply device 10A comprises: a filter unit 20; a main power supply unit 30 which supplies power to an image formation unit 50 with AC power supplied through the filter unit 20; and a heater power supply unit 40 which supplies power to a fixing heater 51 with the AC power supplied through the filter unit 20. The filter unit 20 includes: common lines 21a, 21b; first branch lines 22a, 22b that connect the common lines with the main power supply unit 30; second branch lines 23a, 23b that separably connect the common lines and the heater power supply unit 40; a first X capacitor C1 provided to the common lines; a second X capacitor C2 that is separably provided to the first branch lines; and a third X capacitor C3 that is provided to the second branch lines and is separated from the common lines together with the heater power supply unit 40.
Inventors:
IWASAKI YASUHIRO (JP)
Application Number:
PCT/JP2023/037962
Publication Date:
May 23, 2024
Filing Date:
October 20, 2023
Export Citation:
Assignee:
NICHICON CORP (JP)
International Classes:
H02M7/00
Foreign References:
| JP2022129388A | 2022-09-05 | |||
| JP2012013999A | 2012-01-19 | |||
| JP2012027398A | 2012-02-09 |
Attorney, Agent or Firm:
MINORI PATENT PROFESSION CORPORATION (JP)
Download PDF: