Patent ID: 8653744

Claim:
A driving circuit for a liquid crystal display (LCD) backlight source, comprising a BOOST structure which comprises a capacitor C 12 , a capacitor C 13 , an inductor L 2 , a diode D 2 , and a MOSFET, wherein the driving circuit further comprises a capacitor C 11 , a capacitor C 14 , a diode D 3 , and a diode D 4 , wherein one terminal of the diode D 3 is connected to one terminal of the capacitor C 13 , and the other terminal of the diode D 3 is connected to one terminal of the diode D 4 ; the other terminal of the diode D 4 is connected to one terminal of the capacitor C 14 which is the output terminal of the circuit, and the other terminal of the capacitor C 14 is grounded; one terminal of the capacitor C 11 is connected between the inductor L 2 and the diode D 2 , and the other terminal of the capacitor C 11 is connected between the diode D 3 and the diode D 4 .