POWER SUPPLY CIRCUIT

PROBLEM TO BE SOLVED: To provide a power supply circuit wherein it is possible to supply an output voltage lower or higher than an input voltage to a direct-current load through simple circuitry without providing any special circuit. SOLUTION: The power supply circuit 10 includes: an electricity sup...

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Bibliographische Detailangaben
Hauptverfasser:	KATO KENJI, KASE MASASHI, NAKADAI TARO
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 ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a power supply circuit wherein it is possible to supply an output voltage lower or higher than an input voltage to a direct-current load through simple circuitry without providing any special circuit. SOLUTION: The power supply circuit 10 includes: an electricity supply circuit having a transformer Tr, a rectification diode D1, a primary capacitor C1, and a secondary capacitor C2; and a switching element Q. An LED series circuit 40 is driven by a direct current from the primary capacitor C1 when the switching element Q is on and is driven by a direct current from the secondary capacitor C2 when the switching element Q is off. When the switching element Q is off, the primary capacitor C1 is charged by the transformer Tr. COPYRIGHT: (C)2010,JPO&INPIT