POWER SUPPLY

PROBLEM TO BE SOLVED: To improve a power factor by increasing the continuity angle of an input current by simple control, and to obtain large output. SOLUTION: A power supply comprises: rectification circuits 3a-3d for rectifying an AC supply voltage 1 to output a pulsating voltage; a reactor 2 conn...

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Bibliographic Details
Main Author OKUI HIROSHI
Format Patent
LanguageEnglish
Published 19.10.2006
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
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
BLASTING
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To improve a power factor by increasing the continuity angle of an input current by simple control, and to obtain large output. SOLUTION: A power supply comprises: rectification circuits 3a-3d for rectifying an AC supply voltage 1 to output a pulsating voltage; a reactor 2 connected to the rectification circuits 3a-3d; first and second opening/closing means 8, 9 that are composed of semiconductor switches and connect and interrupt a current path; a capacitor 5 for power factor improvement that is connected to the opening/closing means 8 in series and is connected between the AC input terminal and the DC output terminal of the rectification circuits 3a-3d; a capacitor 6 for phase improvement that is connected to the second opening/closing means 9 in series and is connected between the AC input terminals of the rectification circuits 3a-3d; and a smoothing capacitor 4 for smoothing an output voltage in the rectification circuit to obtain an almost DC voltage. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050107262