| 摘要 |
The present invention relates to an ultra-high efficiency LED lamp driving device comprising: a plurality of shift switches connected to tabs between LED lamps; and an LED shift control unit for driving the shift switches so that lighting of the LED lamps is shifted to an end terminal when a total operation threshold voltage value of the LED lamp is equal to or greater than a maximum value of an input voltage, and thus, an unlighted LED lamp exists. The present invention can make the power loss be zero to thereby increase the efficiency. |
