Title:
POWER SUPPLY CONTROL APPARATUS, IMAGE FORMATION DEVICE, AND POWER SUPPLY CONTROL METHOD
Document Type and Number:
Japanese Patent JP2020145828
Kind Code:
A
Abstract:
To reliably prevent a valve of an electrolytic capacitor from opening upon generation of an overpotential of an AC power supply regardless of a situation of a device that operates with a voltage generated by a power supply apparatus.SOLUTION: A power supply control apparatus controls a power supply device, the power supply device including: a rectification unit that includes an electrolytic capacitor for converting an AC voltage input from an AC power supply to a DC voltage; a voltage generation unit that converts the DC voltage output by the rectification unit to a prescribed voltage to be supplied to a first loading device; and a protection unit including a fuse-containing resistance and a switching element, arranged in parallel between an AC power supply terminal and the rectification unit. The power supply control apparatus includes: a detection unit that detects the AC voltage; and a control unit that sets the switching element in a cut-off state after operating the first loading device when a voltage value detected by the detection unit exceeds a first threshold value voltage and if the first loading device is not in operation.SELECTED DRAWING: Figure 2
Inventors:
TANIMURA TAKUYA
OGINO TATSUYA
NAKAYAMA SHUNTARO
KAJITA KENTARO
OGINO TATSUYA
NAKAYAMA SHUNTARO
KAJITA KENTARO
Application Number:
JP2019039915A
Publication Date:
September 10, 2020
Filing Date:
March 05, 2019
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
H02H3/20; B41J29/38; H02H5/04
Domestic Patent References:
| JP2015033161A | 2015-02-16 | |||
| JP2003164054A | 2003-06-06 | |||
| JP2004088857A | 2004-03-18 | |||
| JPH09285112A | 1997-10-31 | |||
| JP2019033607A | 2019-02-28 | |||
| JP2012039684A | 2012-02-23 | |||
| JP2018160965A | 2018-10-11 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito