| 摘要 |
PURPOSE: An LED lighting driving device is provided to enhance energy efficiency and space efficiency by omitting a resistor connected to an SMPS and an LED. CONSTITUTION: An LED lighting driving device includes a light emitting part and a constant current part. The light emitting part(200-1~200-n) includes a constant voltage regulator and an LED group. The constant voltage regulator receives a DC voltage, and outputs a fixed voltage. The LED group comprises a plurality of LEDs connected serially to an output terminal of the constant voltage regulator. The constant current part(300) is serially connected to the light emitting part, and sends the fixed current to the output terminal of the light emitting part. |
