FAN MOTOR DRIVING DEVICE

PROBLEM TO BE SOLVED: To provide a fan motor driving device comprising: a power supply circuit 4 that outputs a power supply voltage VD for a fan motor 2; an electrolysis capacitor 5 that smooths the power supply voltage VD; and a control circuit 6 that controls an operation of the fan motor 2, the...

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Bibliographische Detailangaben
Hauptverfasser:	IKEDA AKIRA, KUBO TAKASHI, SANO HAJIME, SUGIBAYASHI MASAHIRO, YASHIMA TAKASHI, TAKADA MASAKI, NAGANO KATSUNORI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION HEATING LIGHTING MECHANICAL ENGINEERING REGULATING OR CONTROLLING COMBUSTION WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fan motor driving device comprising: a power supply circuit 4 that outputs a power supply voltage VD for a fan motor 2; an electrolysis capacitor 5 that smooths the power supply voltage VD; and a control circuit 6 that controls an operation of the fan motor 2, the fan motor driving device avoiding its continuous use in a substantial voltage change resulting from a ripple voltage of a switching power supply or another electric load, by enabling malfunction detection of the electrolysis capacitor 5.SOLUTION: The input of power supply voltage VD of a fan motor 2 is caused by a control circuit for monitoring. If an increase in a voltage change of the power supply voltage VD has become significant, it is determined that an electrolysis capacitor 5 is malfunctioning. 【課題】ファンモータ２の電源電圧ＶＤを出力する電源回路４と、電源電圧ＶＤを平滑する電解コンデンサ５と、ファンモータ２の動作制御を行う制御回路６とを備えるファンモータ駆動装置において、電解コンデンサ５の故障検知を行えるようにし、これにより、スイッチング電源のリップル電圧や、他の電気負荷に起因する電圧変動が大きい状態で使用継続されることを回避する。【解決手段】ファンモータ２の電源電圧ＶＤを制御回路に監視のために入力させ、電源電圧ＶＤの電圧変動が大きくなったことを検出して電解コンデンサ５が故障したものと判定する。【選択図】図１