DC-TO-DC CONVERTER, SWITCHING POWER SUPPLY, AND UNINTERRUPTIBLE POWER SUPPLY APPARATUS

PROBLEM TO BE SOLVED: To control the output voltage of a DC-to-DC converter without changing the switching frequency by applying one pulse to each switching element in one period. SOLUTION: A phase shift control section 12 repeats a period where a voltage generated from a DC power supply Ei is not a...

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Bibliographische Detailangaben
1. Verfasser:	YANO YASUSHI
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 control the output voltage of a DC-to-DC converter without changing the switching frequency by applying one pulse to each switching element in one period. SOLUTION: A phase shift control section 12 repeats a period where a voltage generated from a DC power supply Ei is not applied to a resonance circuit 2a and a period where a voltage generated from the DC power supply Ei is applied to the resonance circuit 2a alternately, by turning on/off switching elements Q1-Q4 at a fixed period T while controlling a commutation period tcom for bypassing the DC power supply Ei so that the output voltage from a DC-to-DC converter is maintained at a constant level. COPYRIGHT: (C)2010,JPO&INPIT