LED driving power circuit

The utility model relates to an LED driving power circuit, which comprises a rectification circuit and a DC-DC constant current power circuit. The output end of the rectification circuit is connected with the input end of the DC-DC constant current power circuit; the output end of the DC-DC constant current power circuit is connected with an LED load. The LED driving power circuit is characterized in that a mirror current source circuit is connected between the output end of the DC-DC constant current power circuit and the LED load. Compared with the conventional AC/DC or DC/DC (BUCK) circuit, the LED driving power circuit has the characteristics of small volume, stable output current, lower power consumption and higher efficiency.