Inverter oscillator with current feedback

Details Inverter oscillator with current feedback Inverter oscillator with current feedback

1977-09-19

1978-11-28

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315DIG5, 315DIG7, 315101, 315105, 315206, H05B 3902, H05B 3904, H05B 4136

Patent

active

041277970

ABSTRACT:
A power source for operating gas discharge lamps and other loads at high frequency, typically utilizing a 120 volt ac source rectified to provide a 150 volt dc input and providing a 20,000 hertz output. An inverter with current feedback in place of the conventional voltage feedback providing voltage turn off and voltage turn on in less time and providing increased base current during the conduction time for reducing the voltage-current product and heat generated in the inverter. Voltage limiting and current limiting features are provided for the basic circuit. Inverter circuits with two transistors for increased loads are also provided.

REFERENCES:
patent: 3501674 (1970-03-01), Moore
patent: 3882354 (1975-05-01), May

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