COOLING CONTROL CIRCUIT AND ELECTROSTATIC ATOMIZER COMPRISING THE SAME

PROBLEM TO BE SOLVED: To make a Peltier element proper depending on an environmental temperature while employing a simpler circuit configuration with a smaller number of elements than ever.SOLUTION: An amplifier circuit 2 includes feedback resistance RA, and amplifies a voltage, which is proportione...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUMOTO TAKAOKI, URATANI YUTAKA, SUZUKI MASAYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To make a Peltier element proper depending on an environmental temperature while employing a simpler circuit configuration with a smaller number of elements than ever.SOLUTION: An amplifier circuit 2 includes feedback resistance RA, and amplifies a voltage, which is proportioned to an electric current detected by current detection resistance R1, by an amplification factor corresponding to the feedback resistance RA. A current control circuit IC controls the electric current, which flows through a Peltier element 1, so that an amplified voltage VA output by the amplifier circuit 2 can become constant. The feedback resistance RA comprises a thermistor 3, and fixed resistance R2 serially connected to the thermistor 3. 【課題】従来に比べて簡易且つ少ない素子数の回路構成でありながら、環境温度に応じてペルチェ素子を適切にする。【解決手段】増幅回路２は、帰還抵抗ＲＡを含み、電流検出抵抗Ｒ１により検出された電流に比例する電圧を帰還抵抗ＲＡに応じた増幅率で増幅する。電流制御回路ＩＣは、増幅回路２により出力された増幅電圧ＶＡが一定になるようにペルチェ素子１に流れる電流を制御する。帰還抵抗ＲＡは、サーミスタ３と、サーミスタ３に直列接続された固定抵抗Ｒ２とを備える。【選択図】図１