TRANSITIONAL SURGE VOLTAGE PROTECTION CIRCUIT

PROBLEM TO BE SOLVED: To provide an overvoltage protection circuit which has resistance to a surge voltage and achieves energy saving. SOLUTION: The protection circuit includes a switching element 16 interposed between input and output, a means 17 for detecting an input voltage Vin, and a processor...

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Bibliographische Detailangaben
Hauptverfasser:	AOYAMA YOSUKE, KONO SHIRO
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 EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an overvoltage protection circuit which has resistance to a surge voltage and achieves energy saving. SOLUTION: The protection circuit includes a switching element 16 interposed between input and output, a means 17 for detecting an input voltage Vin, and a processor 18 which controls a ratio D between on-time and off-time of the switching means 16 such that an output voltage does not exceed a set value Vlimit corresponding to a breakdown voltage to be protected, based on the detected signal of the input voltage Vin. COPYRIGHT: (C)2010,JPO&INPIT