Patent ID: 8111015

Claim:
An illumination driving system for driving at least one light-emitting device and controlling a brightness value of said light-emitting device, said illumination driving system comprising: a control unit comprising a first converter and a brightness-adjustable circuit, wherein an input AC voltage is converted into a regulated DC voltage by said first converter, and said brightness-adjustable circuit is connected to said first converter, wherein said first converter further comprises: an AC-to-DC converting circuit for receiving said input AC voltage and converting said input AC voltage into a transition DC voltage; a DC-to-DC converting circuit connected to said AC-to-DC converting circuit for receiving said transition DC voltage and converting said transition DC voltage into said regulated DC voltage; and a feedback circuit connected to said DC-to-DC converting circuit and said brightness-adjustable circuit, wherein said feedback circuit generates a feedback signal according to said regulated DC voltage and said brightness adjusting signal; and at least one base separated from said control unit for supporting said at least one light-emitting device, said base comprising a second converter, wherein said second converter is connected with said first converter and said light-emitting device for converting said regulated DC voltage into an output voltage, and said light-emitting device is driven to illuminate by said output voltage, wherein said brightness-adjustable circuit generates a brightness adjusting signal to said first converter, and the magnitude of said regulated DC voltage is adjusted according to said brightness adjusting signal, thereby adjusting said brightness value of said light-emitting device.