| 摘要 |
PURPOSE: An apparatus for supplying a power of light emitting diode is provided to stably sweep a driving frequency by changing a driving frequency at driving lamp and dimming. CONSTITUTION: A voltage sensing unit(200) senses a driving voltage which is supplied from an integrated circuit. A feedback circuit unit(400) feeds back a feedback voltage. The feedback voltage is supplied from a lamp unit. A switching unit(300) provides a driving voltage. A switching unit receives the feedback voltage.
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