Patent ID: 6208086
Filing Date: 2001-03-27
Classification: H05B,Y02B

Abstract:
A power converter circuit comprising:a power source which generates a power line voltage;a rectifier configured to rectify the power line voltage and generate a pulsating d.c. voltage with a frequency which is twice a frequency of the power line voltage;a gate drive circuit configured to receive the pulsating d.c. voltage, the gate drive circuit driving a pair of switches which are controlled to invert the pulsating d.c. voltage, without use of level shifting, where the gate drive circuit further includes a driving inductor, timing inductor, and timing capacitor serially connected to each other, and further connected to the switches to control operation of the switches;a transformer, including a first transformer winding and a second transformer winding, and a capacitor, designed to receive an output signal from the switches;a tap from the transformer winding; anda lamp connected to receive driving signals from the transformer winding through the tap, wherein the tap attenuates the signal developed across the transformer winding.