Patent ID: 7372217

Claim:
A driving device for driving a plurality of Cold Cathode Fluorescent Lamps (CCFLs), comprising: an inverter circuit for converting a received power signal to an alternating current (AC) signal; a signal sensing circuit connected to the inverter circuit and the CCFLs, for generating protection signals of the driving device, wherein the protection signals comprise a current protection signal; a microcontroller for receiving the protection signals output from the signal sensing circuit, and outputting a logic control signal, the microcontroller comprising: an analog-to-digital (A/D) converter for converting the current protection signal to a digital current protection signal; a short-circuit sense module for receiving the digital current protection signal, and detecting whether the CCFLs have a short-circuit based on the digital current protection signal; and a logic control module for receiving output of the short-circuit sense module and outputting the logic control signal; and a control circuit for receiving the logic control signal and controlling the AC signal output from the inverter circuit according to the logic control signal.