INDUCTION HEATING DEVICE

To reduce inverter current in heating operation of an induction heating device.SOLUTION: An induction heating device A includes a parallel resonance circuit 20 including an inductor with a heating coil C, and a resonance capacitor 26, an inverter circuit 1 that supplies the parallel resonance circui...

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Bibliographic Details
Main Authors SASAGAWA MASASHI, NISHIKORI NOBUHARU, YOSHIDA TARO, KANEKAWA TOMOYUKI, OTAWARA MASAYUKI, ONO MASAKI, YAGI YUTAKA
Format Patent
LanguageEnglish
Japanese
Published 07.09.2022
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:To reduce inverter current in heating operation of an induction heating device.SOLUTION: An induction heating device A includes a parallel resonance circuit 20 including an inductor with a heating coil C, and a resonance capacitor 26, an inverter circuit 1 that supplies the parallel resonance circuit 20 with electric power, first current detection means 35 that detects output current output from the inverter circuit 1 to the parallel resonance circuit 20, and control means 40 that controls drive frequency of the inverter circuit 1 so as to reduce a peak current value of the output current detected by the first current detection means 35.SELECTED DRAWING: Figure 1 【課題】誘導加熱装置の加熱動作中におけるインバータ電流を低減させる。【解決手段】誘導加熱装置Ａは、加熱コイルＣを含むインダクタと、共振コンデンサ２６と、を有する並列共振回路２０と、並列共振回路２０に電力を供給するインバータ回路１と、インバータ回路１から並列共振回路２０に出力される出力電流を検出する第１電流検出手段３５と、第１電流検出手段３５で検出された出力電流のピーク電流値が小さくなるようにインバータ回路１の駆動周波数を制御する制御手段４０とを備える。【選択図】図１
Bibliography:Application Number: JP20210029403