Patent ID: 6348767
Filing Date: 2002-02-19
Classification: H02M,H05B,Y02B

Abstract:
An electronic ballast configured to receive input from a power source, to control operation of a lamp connected to the electronic ballast, the electronic ballast comprising:a positive side bus voltage line; a ground reference line; an input section connected to the power source, the positive side bus voltage line and the ground reference line; a switching network; a resonant network connected to the input section and the switching network, the resonant network including, a gate drive network receiving signals from a portion of the resonant network, for controlling operation of the switching network using the received signals; and a resonant switching network of the resonant network including: a first resonant capacitor connected to at least one of the positive side bus voltage line and the ground reference line, and a second resonant capacitor connected to the first resonant capacitor and to the input section, wherein at least a portion of resonant current from the second resonant capacitor is supplied to the input section.