Patent ID: 7015659
Filing Date: 2006-03-21
Classification: H05B

Abstract:
1. A driving apparatus for driving a light tube, wherein the driving apparatus comprises: a first input end, which receives an input signal; a second input end, which receives a voltage control signal; a delay unit, which outputs a delay signal based on the input signal and the voltage control signal received by the delay unit, wherein the delay signal is the input signal delayed by a time period determined by the voltage control signal; a first logic device, which performs a first operation based on the input signal and the delay signal received by the first logic device, and outputs a first signal; a second logic device, which performs a second operation based on the input signal and the delay signal received by the second logic device, and outputs a second signal; and a transformer, which comprises a primary coil, a secondary coil, a first switch, and a second switch, wherein the two ends of the primary coil of the transformer are respectively coupled to the first switch and the second switch, which are respectively controlled by the first signal and the second signal, the secondary coil outputs a driving signal induced by the primary coil to drive the light tube.