Drive circuit structure for different type LED

The present invention relates to, and more particularly, to a circuit structure for driving the LED in both heterologous to improve the efficiency and power factor relates to a circuit structure for the LED driving heterologous. Circuit structure for driving an LED according to the present invention is a heterogeneous string and driven by the main driving current in a first voltage range of the driving voltage comprises at least two different types of LED elements; It characterized in that it comprises a; the LED element selected from the LED element of the string to the current controller to be driven by the secondary driving current in a second voltage range of the driving voltage. LED driving circuits for a heterogeneous structure according to the invention has the advantage to improve both the power factor and efficiency characteristics.