POWER CONVERTER

PROBLEM TO BE SOLVED: To reduce a leakage noise by suppressing a spike voltage generated at an output voltage due to a deviation of generating voltage on/off timing of each single phase inverter in a gradation control type power converter which connects AC sides of a plurality of single-phase invert...

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Bibliographische Detailangaben
Hauptverfasser:	IWATA AKIHIKO, SUZUKI AKIHIRO, KISHIDA YUKIMORI, YAMADA MASAKI
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 reduce a leakage noise by suppressing a spike voltage generated at an output voltage due to a deviation of generating voltage on/off timing of each single phase inverter in a gradation control type power converter which connects AC sides of a plurality of single-phase inverters (a Va inverter, a Vb inverter and a Vc inverter) in series and which outputs in combination of the selected each single-phase inverter. SOLUTION: A delay circuit 51 for regulating on/off timing of a drive signal of a switching element is provided at each single-phase inverter, and the spike voltage, generated when an output voltage gradation of a single phase multiplex converter having the single-phase inverters connected in series with each other is changed, is suppressed. COPYRIGHT: (C)2004,JPO