POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS

To solve the problem in which: when a CPU on the secondary side detects a voltage and a current via a transformer, the size of an image forming apparatus increases.SOLUTION: A detection unit 164 transmits, via an antenna ANT, a detection result to a control unit 165 electromagnetically coupled to th...

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Bibliographic Details
Main Author ISHIKAWA JUNJI
Format Patent
LanguageEnglish
Japanese
Published 24.06.2019
Subjects
BASIC ELECTRONIC CIRCUITRY
CINEMATOGRAPHY
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
MODULATION
PHOTOGRAPHY
PHYSICS
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Summary:To solve the problem in which: when a CPU on the secondary side detects a voltage and a current via a transformer, the size of an image forming apparatus increases.SOLUTION: A detection unit 164 transmits, via an antenna ANT, a detection result to a control unit 165 electromagnetically coupled to the antenna ANT. As a result of this, a transformer does not need to be provided between a first circuit 160a and a second circuit 160b, and thus an increase in size of the apparatus can be prevented while an insulating state between the first circuit 160a and second circuit 160b is maintained.SELECTED DRAWING: Figure 3 【課題】 トランスを介して２次側のＣＰＵが電圧及び電流を検出する場合、画像形成装置が大型化してしまう。【解決手段】 検出部１６４はアンテナＡＮＴによって電磁気的に結合された制御部１６５に当該アンテナＡＮＴを介して検出結果を送信する。この結果、第１回路１６０ａと第２回路１６０ｂとの間にトランスを設ける必要がないため、第１回路１６０ａと第２回路１６０ｂとの絶縁状態を保ちつつ、装置の大型化を抑制することができる。【選択図】 図３
Bibliography:Application Number: JP20180156696