INVERTER DEVICE

PROBLEM TO BE SOLVED: To provide an inverter device that can safely detect a short circuit with a small current whether an electric motor is stopped or driven, if a drive circuit section short-circuits.SOLUTION: The inverter device includes a drive circuit section 22 powered by a drive battery 7, an...

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Bibliographische Detailangaben
Hauptverfasser:	MUTO TAKAYA, SAOTOME HIDEYUKI
Format:	Patent
Sprache:	eng
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 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an inverter device that can safely detect a short circuit with a small current whether an electric motor is stopped or driven, if a drive circuit section short-circuits.SOLUTION: The inverter device includes a drive circuit section 22 powered by a drive battery 7, and a control circuit section 21 powered by a control battery 3. The control circuit section 21 includes: a constant voltage power supply 211a; a semiconductor element 215 connected between the constant voltage power supply 211a and the drive circuit section 22; a diode 214 having an anode connected to the semiconductor element 215 and a cathode connected to the drive circuit section 21; a voltage drop detection section 212a for detecting a drop of an output voltage of the constant voltage power supply 211a when the drive circuit section 21 short-circuits; and a relay control section 212b for opening the semiconductor element 215 and a relay 8 connected between the drive battery 7 and the diode 214 when the voltage drop detection section 212a detects a drop in the output voltage of the constant voltage power supply 211a.