| 摘要 |
The present invention relates to an LED power supply device and an LED power supplying method to minimize power loss and heat generation. The LED power supply device includes an LED module having at least one LED device, an LED driving module receiving power outputted from SMPS to allow constant current to be applied to the LED device constituting the LED module and then applying voltage to the LED module, and a control unit controlling an output voltage of the SMPS to minimize power loss by detecting a voltage value, which exceeds a minimum operating voltage of the LED driving module that uniformly adjusts a value of current supplied to the LED module. Thus, in order to resolve issues such as deterioration of efficiency and excess heat in a power supply device for an LED, which includes an LED driving circuit having an applied constant current control circuit of a switching or linear method, the voltage of power supplied to an LED according to a change of an LED voltage is automatically adjusted. Therefore, power loss and heat generation may be minimized. |
