Patent ID: 8247989
Filing Date: 2012-08-21
Classification: H05B

Abstract:
1. A lamp detection driving system, comprising: a micro-controller unit for providing a pulse width modulation (PWM) signal, a lamp current control signal and a plurality of detection reference signals based on a recipe; a driving signal control circuit, electrically coupled to the micro-controller unit, for generating a plurality of preliminary control signals based on the PWM signal; a plurality of driving circuits, electrically coupled to the driving signal control circuit, each of the driving circuits being utilized to generate a driving signal for driving a corresponding lamp based on the preliminary control signals; a defect detection module, electrically coupled to the micro-controller unit, for generating a plurality of detection signals based on the detection reference signals and a plurality of feedback signals, wherein the defect detection module comprises a plurality of defect detection units, and each of the defect detection units further comprises: a feedback circuit, electrically coupled to the defect detection module, for generating the feedback signals based on at least one lamp current or at least one lamp voltage of at least one lamp.