| 摘要 |
PURPOSE: A driving circuit for an LED lamp is provided to increase the power efficiency of driving an LED by reducing the power loss of a diode which configures an LED current circuit, thereby reducing heat generated in the driving circuit included in an LED. CONSTITUTION: An LED lamp driving circuit includes an LED driving circuit unit(200), an LED on/off control circuit unit(202), and a plurality of LEDs(204). The LED driving circuit unit includes an LED driving power unit and a coil unit. An LED on/off control circuit unit includes an FET which is a semiconductor switching device. A plurality of LEDs is connected between the internal resistor of the coil unit and the FET in series or parallel. The LED lamp driving circuit determines the on time of an FET by detecting the voltage of the LED driving power.
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