Light source driving apparatus and light source apparatus having the same

A light source driving apparatus includes; a boosting part which boosts an input voltage received from an input part and generates a driving voltage, a boosting transistor which controls an operation of the boosting part, a rectification part connected between the boosting part and an output part an...

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Bibliographic Details
Main Authors Byun, Sang-Chul, Kim, Gi-Cherl, Yang, Byung-Choon, Ye, Byoung-Dae
Format Patent
LanguageEnglish
Published 12.06.2012
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Summary:A light source driving apparatus includes; a boosting part which boosts an input voltage received from an input part and generates a driving voltage, a boosting transistor which controls an operation of the boosting part, a rectification part connected between the boosting part and an output part and which transmits the driving voltage to the output part, an integrated circuit which generates a gate signal which controls the boosting transistor, and a protection circuit which generates a protection signal which controls a voltage level of the gate signal according to an output current of the boosting transistor.