Patent ID: 6459215
Filing Date: 2002-10-01
Classification: H05B

Abstract:
A linear fluorescent lamp system powered by a power source, the system comprising:(a) a current smoothing circuit for a linear fluorescent lamp including, an a.c. to d.c. rectifier for rectifying the power source, where the power source is connected at a first end to the rectifier, a smoothing capacitor configuration connected to said rectifier, a set of complementary switches connected to said smoothing capacitor configuration, each of said switches having a control terminal commonly connected to a starting capacitor, to a bi-directional clamping device and to a driving circuit, said switches being alternately activated into a conducting state to generate an a.c. signal and supplying said a.c. signal to a resonant circuit, and each of said switches having a commonly connected terminal interconnected to the resonant circuit and to the driving circuit; (b) a linear fluorescent lamp connected at a first end to the resonant circuit, and at the second end to the power source; and (c) a connecting line connected at a first end to the second end of the linear fluorescent lamp, and at a second end to the rectifier circuit.