Patent ID: 8098019
Filing Date: 2012-01-17
Classification: H05B

Abstract:
1. A driving circuit of multi-lamps, comprising: a power supply module, providing an alternating current (AC) signal, wherein the power supply module is controlled by a control signal to determine whether or not the power supply module is turned off; a transformer module, electrically connected to the power supply module for respectively providing a driving signal and an inverted driving signal to a first terminal and a second terminal of each lamp according to the AC signal, wherein the lamps at least comprise a first lamp and a second lamp; a first detection module, detecting a first indication signal combined by signals of the first terminal of the first lamp and the second terminal of the second lamp; and a control module, comparing the first indication signal with a reference signal to generate the control signal; a second detection module, detecting a second indication signal combined by signals of the second terminal of the first lamp and the first terminal of the second lamp, wherein the control module compares one of the first indication signal and the second indication signal with the reference signal to generate the control signal.