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Patent Searching and Data


Title:
電源装置及び画像形成装置
Document Type and Number:
Japanese Patent JP7214471
Kind Code:
B2
Abstract:
To improve the voltage accuracy of output voltage in a low power consumption mode.SOLUTION: A power supply device comprises: an AC/DC converter 200 that converts an AC voltage and outputs a voltage of 24 V or 5.2 V; a DC/DC converter 300 that receives input of a DC voltage output from the AC/DC converter 200 and outputs a voltage of 5.2 V; and a regulator 400 that is connected in parallel to the DC/DC converter 300, receives input of the DC voltage output from the AC/DC converter 200, and maintains the output voltage at 5.2 V. When a predetermined DC voltage lower than 24 V and higher than 5.2 V is output from the AC/DC converter 200, the output voltage of 5.2 V is output from the DC/DC converter 300, and when a voltage equal to or lower than the predetermined DC voltage is output from the AC/DC converter 200, the output voltage of 5.2 V is output from the regulator 400.SELECTED DRAWING: Figure 2

Inventors:
Masamitsu Watabiki
Hayashi Kobayashi
Yuya Hirano
Application Number:
JP2018244383A
Publication Date:
January 30, 2023
Filing Date:
December 27, 2018
Export Citation:
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Assignee:
Canon Inc
International Classes:
H02M3/155; H02M3/28
Domestic Patent References:
JP2015226397A
JP2013176245A
JP11353040A
JP11003126A
JP2013000942A
Foreign References:
US20030117117
Attorney, Agent or Firm:
Toshikazu Kaji
Nakamura Eiko