Patent ID: 8390210

Claim:
A light driver circuit device for synchronically driving a plurality of lamps, comprising: a first inverter circuit board comprising a first inverter circuit coupled to a first driving signal for outputting a first driving voltage to drive the lamps synchronously; and a first balance circuit board comprising a first balance circuit which is coupled to one terminals of the lamps, wherein the first balance circuit board is disposed to separate from the first inverter circuit board, wherein the first inverter circuit comprises a first transformer having a primary side coupled to the first driving signal and a secondary side outputting the first driving voltage, wherein the first balance circuit is an inductor-capacitor (LC) network configured to uniformly distribute the first driving voltage to the lamps, wherein the first balance circuit is further coupled to the first inverter circuit, and the LC network comprises: a plurality of inductors having one ends coupled to the secondary side of the first transformer and the other ends respectively coupled to high-voltage terminals of the lamps; and a plurality of capacitors, respectively coupled between the high-voltage terminals of adjacent lamps, wherein low-voltage terminals of the lamps are grounded.