High power factor electronic stabilizer with protection circuit

A high power factor electronic stabilizer, comprising:

• a lamp powered by a high frequency lamp voltage;
• an oscillating circuit connected to the lamp;
• a power input;
• a rectifying circuit;
• a high frequency filter consisting of induction coils and capacitors connected between the power source input and the rectifying circuit,
• a feedback power factor improving circuit including a diode connected in series between the rectifying circuit and the oscillating circuit and an electrolytic capacitor connected in parallel between the rectifying circuit and the oscillating circuit;
• and
• means connected between the lamp and the anode of the feedback power factor improving circuit diode for applying the high frequency lamp voltage directly to an output of the rectifying circuit,
• wherein said electrolytic capacitor thereby forms a means for phase shifting the output of the rectifying circuit to which the high frequency lamp voltage has been directly applied and thereby adjust the phase of the oscillating circuit input voltage to match that of the oscillating current supplied to the lamp in order to maximize a power factor of power supplied to the lamp by the oscillating circuit.