Patent ID: 8143797
Filing Date: 2012-03-27
Classification: H02M,H05B,Y02B

Abstract:
1. A direct current to alternating current (DC/AC) inverter for driving a fluorescent lamp through quasi sine wave generation, the DC/AC inverter comprising: a frequency generator for generating a reference signal and a modulation signal; a pulse width modulator coupled to receive said modulation signal for providing a pulse width modulation signal according to said modulation signal; a driver circuit coupled to receive said pulse width modulation signal and said reference signal for generating at least one driving signal according to said pulse width modulation signal and said reference signal; a half bridge power switch unit coupled to receive said at least one driving signal; and a resonant tank coupled to the fluorescent lamp for outputting a quasi sine wave to drive the fluorescent lamp according to output of the half bridge power switch unit.