POWER SUPPLY DEVICE

PROBLEM TO BE SOLVED: To provide a power supply device which can make a current sufficiently flow to a constant-voltage diode, in the power supply device equipped with the constant-voltage diode. SOLUTION: The power supply device 10 includes: a transformer 14 including a primary winding Np, a second...

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Bibliographische Detailangaben
Hauptverfasser:	OKUBO WATARU, MIKAMI HITOSHI
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 provide a power supply device which can make a current sufficiently flow to a constant-voltage diode, in the power supply device equipped with the constant-voltage diode. SOLUTION: The power supply device 10 includes: a transformer 14 including a primary winding Np, a secondary winding Ns, and a base winding Nb; an input capacitor Ci; a switching transistor Q1; a starting resistor Rs; a base resistor Rb; the diode D2; and a capacitor C2. Furthermore, as a circuit for controlling an output voltage, the power supply includes: a diode D1; a capacitor C1; resistors R1, R2 for setting the output voltages; a Zener diode Dz; a variable resistor Rv1; and a transistor Q2. A Zener current Iz flowing to the Zener diode Dz is adjusted by the variable resistor Rv1. COPYRIGHT: (C)2008,JPO&INPIT