Patent ID: 8384301

Claim:
A light source system capable of effectively dissipating heat comprising: an alternating current (AC) power supply, for outputting a first power with a first cycle according to a control signal; a switch device, coupled to the AC power supply, for adjusting an output ratio of the first power in the first cycle according to an light setting, to generating a second power; a light-emitting device, coupled to the switch device, for according to the second power, generating light source; and a control device, coupled to the AC power supply, for generating the control signal, comprising: an active signal generator, for generating an active signal sequence according to lighting features of the light emitting device, each active signal of the active signal sequence comprising a second cycle; a heat-dissipation signal generator, for generating a heat-dissipation signal sequence, each heat-dissipation signal of the heat-dissipation signal sequence comprising a third cycle; a multiplexer, coupled to the active signal generator and the heat-dissipation signal generator for combining the active signal sequence and the heat-dissipation signal sequence, to generate a driving signal sequence, each driving signal of the driving signal sequence comprising a fourth cycle equal to a sum of the second cycle and the third cycle; a burst signal generator for generating a burst signal according to the lighting features of the light emitting device, the burst signal comprising a fifth cycle longer than the fourth cycle; and a logic unit coupled to the multiplexer, the burst signal generator and the power supply for timely outputting the driving signal sequence according to the burst signal, to generate the control signal.