Patent ID: 7436124
Filing Date: 2008-10-14
Classification: H05B,Y10S

Abstract:
1. A ballast for operating lamps each including a pair of electrodes, the ballast comprising: a high frequency resonant circuit which generates a high frequency bus, the resonant circuit being configured for operational coupling to the electrodes of each lamp and including a resonant inductor and a resonant capacitance wherein each lamp is operationally coupled to the high frequency bus via an associated ballasting capacitor; an inverter operationally coupled to the resonant circuit for inducing an AC current in the resonant circuit, wherein the inverter comprising: non-complimentary first and second switches operatively connected together at a common node to receive an oscillation signal generated by the resonant circuit, the oscillation signal determining a switching rate of the first and second switches; first and second gate control circuits controlling respective first and second switches, the first and second gate control circuit comprises: a tertiary inductor operationally coupled to the secondary inductors.