- Patent Title: Power control apparatus and image forming apparatus using the same
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Application No.: US15878485Application Date: 2018-01-24
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Publication No.: US10256711B2Publication Date: 2019-04-09
- Inventor: Satoshi Chikazawa , Toshinori Inomoto , Yasuhiro Ishihara
- Applicant: KONICA MINOLTA, INC.
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: Konica Minolta, Inc.
- Current Assignee: Konica Minolta, Inc.
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2017-016141 20170131
- Main IPC: H02M1/12
- IPC: H02M1/12 ; G03G15/00 ; H02M3/335 ; H02M1/00

Abstract:
A power control apparatus that supplies an AC current to a load and adjusts a current amount by setting a portion of a phase range among each of half-wave periods of the AC current to be supplied as a conduction angle and setting the remainder as a non-conduction angle, includes: a reference value determiner that defines a period across a plurality of half-wave periods as a current determination period and that determines a reference value of the conduction angle; and a distribution processor that determines a distribution value to distribute the conduction angle and performs current amount adjustment by distributed conduction angles, wherein the distribution processor determines the distribution value within one current determination period such that the value includes a positive distribution value and a negative distribution value, and an average value of the distributed conduction angles is within ±2.5% with respect to the reference value.
Public/Granted literature
- US20180219467A1 POWER CONTROL APPARATUS AND IMAGE FORMING APPARATUS USING THE SAME Public/Granted day:2018-08-02
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