| 摘要 |
<p>The present invention relates to a driving current control device for an LED lamp. According to an embodiment of the present invention, the driving current control device form an LED lamp includes: a plurality of light-emitting diodes; a main switch unit; a sub-switch driving unit; and a main switch driving unit. The light-emitting diodes connect an end of the driving current control device to an output end of a power source in series. The main switch unit includes a transistor (Q1) which is connected to the output of the multiple light-emitting diodes with a connected drain and performs a switching operation according to the voltage level of a gate voltage to conduct or cut off a current flowing on the light-emitting diodes.</p> |
