POWER CIRCUIT

PURPOSE:To reduce loss and increase efficiency by connecting an anode of diode with an output end of secondary winding and a cathode side thereof with a transistor base through a resistance. CONSTITUTION:A power circuit in a ringing choke converter system is composed of a transformer T, a switching...

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Hauptverfasser:	NOGAMI SHINJI, MORIWAKI MASATO
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:	PURPOSE:To reduce loss and increase efficiency by connecting an anode of diode with an output end of secondary winding and a cathode side thereof with a transistor base through a resistance. CONSTITUTION:A power circuit in a ringing choke converter system is composed of a transformer T, a switching transistor (hereinafter referred to as Tr) 4, a secondary circuit-rectifying diode 5, a smoothing circuit 6, a diode 10 and a Zener diode 11, and the Tr4 is driven by a positive feedback from a feedback winding 3 to obtain output V0. In this case, a diode 12 and a resistance 13 are added between an output end of secondary winding 2 and a base of the Tr4. When the Tr4 is turned OFF, therefore, electric current is stopped because the diode 12 is driven in an opposite direction, and a loss of this apparatus can be reduced since only a resistance 7 suffers such loss.