POWER CIRCUIT FOR LIGHTING AND LIGHTING DEVICE

PROBLEM TO BE SOLVED: To provide a power circuit for lighting in which an increase of special manufacturing management processes and parts to be mounted is restrained, and dispersion (variation) in illuminance among circuits is small.SOLUTION: A power circuit for lighting which rectifies an AC volta...

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Bibliographic Details
Main Authors OKUDA TAKANORI, SHIRASAKA YASUYUKI
Format Patent
LanguageEnglish
Published 10.09.2012
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:PROBLEM TO BE SOLVED: To provide a power circuit for lighting in which an increase of special manufacturing management processes and parts to be mounted is restrained, and dispersion (variation) in illuminance among circuits is small.SOLUTION: A power circuit for lighting which rectifies an AC voltage 1, generates a smoothed direct current, and supplies it to an illumination light, includes an adjustment circuit Oj which adjusts a current value detection level of a detection current according to a variation in an oscillatory frequency of an oscillator 63 in a manner that an average of the current supplied to the illumination light 4 is constant.
Bibliography:Application Number: JP20110036195