Gas fireplace burner control system

A fireplace control system for a gas fireplace burner comprising:

• solenoid means operatively controlled for supplying gas to the gas fireplace burner;
• high voltage spark ignition means operatively controlled for generating ignition sparks near the gas fireplace burner;
• flame sensing means coupled to the gas fireplace burner for providing a feedback signal to activate and deactivate said high voltage spark ignition means;
• said flame sensing means including a bipolar transistor operatively controlled by a sensed flame signal and a first pair of comparators operatively coupled to said bipolar transistor, each of said first comparators having an output providing said feedback signal to activate and deactivate said high voltage spark ignition means;
• timing and control means for providing a first control signal to energize said solenoid means and for providing a second control signal and a third control signal after a set time period with said feedback signal activated, said second control signal to deenergize said solenoid means and said third control signal to deactivate said high voltage spark ignition means;
• and
• said timing and control means including a second pair of comparators, reference voltage means providing a reference voltage to a first input of one of said second comparators and to a second input of the other of said second comparators, and resistor-capacitor (RC) timing means providing a capacitor voltage to a second input of said one of said second comparators and a first input of said other of said second comparators.