POWER SUPPLY DEVICE

PROBLEM TO BE SOLVED: To provide a power supply device using a piezoelectric transformer for generating a high voltage with a simple configuration. SOLUTION: In a power supply device with a piezoelectric transformer 200 and a drive circuit 100 for driving the piezoelectric transformer 200, a coil 4...

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Bibliographic Details
Main Author YAMASHITA TOMOFUMI
Format Patent
LanguageEnglish
Published 18.03.1997
Edition6
Subjects
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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Summary:PROBLEM TO BE SOLVED: To provide a power supply device using a piezoelectric transformer for generating a high voltage with a simple configuration. SOLUTION: In a power supply device with a piezoelectric transformer 200 and a drive circuit 100 for driving the piezoelectric transformer 200, a coil 4 is connected between the output terminal of the drive circuit 100 and a first input electrode 6 of the piezoelectric transformer 200 and a series resonance circuit is formed by the capacitance between the coil 4 and the piezoelectric transformer 200. The impedance of the drive circuit 100 and a circuit reaching the input edge of the piezoelectric transformer 200 reaches zero and an input voltage VB with a large amplitude is applied to the vibration part of the piezoelectric transformer 200, thus obtaining a high voltage VC from the piezoelectric transformer.
Bibliography:Application Number: JP19960160919