POWER SUPPLY DEVICE

PROBLEM TO BE SOLVED: To permit selecting component other than component having high withstand voltage performance and preventing cost up and size increase of a common-mode compensation circuit by lowering withstand voltage of component constituting a common mode noise compensation circuit.SOLUTION:...

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Hauptverfasser:	NISHIMAKI YOSHICHIKA, TAKEDA YUICHI
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 THEREOF 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 permit selecting component other than component having high withstand voltage performance and preventing cost up and size increase of a common-mode compensation circuit by lowering withstand voltage of component constituting a common mode noise compensation circuit.SOLUTION: A power supply device includes: a rectification circuit 2 for converting three-phase AC voltage from three-phase AC power source 300 into DC voltage; a smoothing circuit 3 for smoothing the DC voltage outputted from the rectification circuit 2; an inverter circuit 4 for converting the DC voltage smoothed by the smoothing circuit 3 into three-phase AC voltage and outputting to a motor 200; and a common mode noise compensation circuit 5 for removing common mode noise flowing between the three-phase AC power source 300 and the motor 200, where power source of the common mode noise compensation circuit 5 connects a neutral point N of the three-phase AC power source 300 and R phase, S phase or T phase of the three-phase AC power source 300.