Title:
電源装置及び画像形成装置
Document Type and Number:
Japanese Patent JP7271152
Kind Code:
B2
Abstract:
To reduce power consumption in a low-power consumption mode while maintaining voltage accuracy of an output voltage.SOLUTION: A power supply device comprises: a first power supply 200 that converts an AC voltage into an output voltage 218 and outputs the output voltage 218; a second power supply 300 that converts the output voltage 218 outputted from the first power supply 200 into an output voltage 318 and outputs the output voltage 318 in a standby state, and that stops its operation in a sleep state; a third power supply 400 that stops its operation in the standby state, and that operates so as to perform constant voltage control of controlling the output voltage 318 to a target voltage when making a transition from the standby state to the sleep state; and a controller 500 that controls the first power supply 200 so that the output voltage 218 becomes 24 V in the standby state, and controls the first power supply 200 so that the output voltage 218 becomes 5.2 V in the sleep state.SELECTED DRAWING: Figure 2
Inventors:
Yuya Hirano
Hayashi Kobayashi
Masamitsu Watabiki
Hayashi Kobayashi
Masamitsu Watabiki
Application Number:
JP2018229504A
Publication Date:
May 11, 2023
Filing Date:
December 07, 2018
Export Citation:
Assignee:
Canon Inc
International Classes:
H02M3/155; G05F1/56; H02M3/28
Domestic Patent References:
| JP2013176245A | ||||
| JP2004201386A | ||||
| JP2009131066A |
Attorney, Agent or Firm:
Toshikazu Kaji
Hideko Nakamura
Hideko Nakamura