Circuit For Driving Lighting Apparatus And Method Thereof

A circuit for driving a lighting apparatus is provided. The circuit includes a valley signal generator configured to generate a valley signal based on an input voltage, an input voltage determining unit configured to determine whether the input voltage corresponds to a direct voltage or a full-wave...

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Bibliographic Details
Main Authors RYU BEOM-SEON, LIM GYU-HO, YUN TAE-IL
Format Patent
LanguageChinese
English
Published 23.03.2016
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:A circuit for driving a lighting apparatus is provided. The circuit includes a valley signal generator configured to generate a valley signal based on an input voltage, an input voltage determining unit configured to determine whether the input voltage corresponds to a direct voltage or a full-wave rectified AC voltage based on the valley signal, an AC voltage simulation unit configured to generate a virtual valley signal when the input voltage is a DC voltage, and a switching device controller configured to control a switching device used to drive an LED module based the determination and at least one of the valley signal and virtual valley signal.
Bibliography:Application Number: CN201510586860