Patent ID: 7528557
Filing Date: 2009-05-05
Classification: H05B,Y02B

Abstract:
1. An electronic controller for a high-power gas discharging lamp having a bulb, the controller comprising: a filter circuit to reduce interference and control the electromagnetic characteristics of an input power signal; a rectifier circuit in electrical communication with the filter circuit, to generate a DC power signal to the controller; a power factor switching circuit in electrical communication with the rectifier circuit, to increase the power factor and to stabilize the voltage and current of the power signal; a driver inversion and power control circuit in electrical communication with the power factor switching circuit, to adjust to loading of the controller and including an integrated circuit, to drive and control the power signal; first and second current sampling resistors, a potentiometer, and a capacitor, the first current sampling resistor passing a first current signal to the integrated circuit for comparison with a second current signal passed by the potentiometer and the second current sampling resistor, the capacitor being connected between the integrated circuit side of the first and second resistors; an initiation trigger protective circuit in electrical communication with the driver inversion and power control circuit, to control the timing of passing a trigger voltage to the lamp; and an output matching circuit in electrical communication with the initiation trigger protective circuit, to match the impedance of the lamp bulb connected to the output matching circuit.