LED drive circuit

An LED driving circuit is disclosed in accordance with an embodiment of the present invention, the LED driving circuit comprising a linear driving circuit coupled in series with an LED load for controlling a current flowing through the LED load; the first capacitor is coupled in parallel with a series structure formed by the linear driving circuit and the LED load; and the control circuit is used for reducing the difference value between the voltage of the first capacitor and the load voltage of the LED load so as to improve the efficiency of the LED driving circuit. According to the LED driving circuit, the power loss of the linear driving circuit is reduced, and the efficiency is improved. 依据本发明的实施例揭露了一种LED驱动电路，所述LED驱动电路包括线性驱动电路，与所述LED负载串联耦接，用于控制流过LED负载的电流；第一电容，与所述线性驱动电路和所述LED负载组成的串联结构并联耦接；控制电路，减小所述第一电容的电压和所述LED负载的负载电压的差值，以提高所述LED驱动电路的效率。本发明中的LED驱动电路减小了线性驱动电路的功率损耗，提高了效率。