Patent ID: 7525257
Filing Date: 2009-04-28
Classification: H05B,Y02B

Abstract:
1. A driving device for driving a light source module comprising a plurality of lamps, comprising: a first power stage circuit, comprising a positive output and a negative output; and a first transformer circuit, connected to the first power stage circuit, comprising: a first transformer comprising a primary winding; a second transformer comprising a primary winding; a third transformer comprising a primary winding; and a fourth transformer comprising a primary winding; wherein each primary winding has a first input and a second input; the first input of the primary winding of the first transformer, the second input of the primary winding of the second transformer, the second input of the primary winding of the third transformer, and the first input of the primary winding of the fourth transformer are jointly connected to the positive output of the first power stage circuit; and the second input of the primary winding of the first transformer, the first input of the primary winding of the second transformer, the first input of the primary winding of the third transformer, and the second input of the primary winding of the fourth transformer are jointly connected to the negative output of the first power stage circuit.