Patent ID: 7095183

Claim:
A resonant inverter comprising: a self-oscillating driver circuit having timing and common terminals; a voltage source; a timing capacitor connected to said timing terminal; a zero signal detector that changes an output signal when an input signal at a first input terminal changes polarity; two anti-parallel diodes and two resistors connected in series with respective ones of said two diodes, said two diodes being connected to said timing capacitor and said two resistors being connected to said common terminal; and a further capacitor connecting said voltage source to a first node between a first one of said two diodes and the respective first one of said two resistors, said further capacitor also being connected to an output of said zero signal detector so that said zero signal detector initiates discharge of said further capacitor to said first one of said two resistors when said zero signal detector input signal changes polarity and superposes strobe pulses generated across said first one of said two resistors on a voltage of said timing terminal.