Ballast circuit for gaseous discharge lamps without inductive el

Details Ballast circuit for gaseous discharge lamps without inductive el Ballast circuit for gaseous discharge lamps without inductive el

1994-08-24

1998-01-20

Pascal, Robert

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Plural discharge devices and/or rectifiers in the supply...

315176, 315DIG5, 315DIG2, 315289, 363 59, H05B 3700

Patent

active

057104875

ABSTRACT:
An improved energizing circuit for starting and regulating a gaseous discharge lamp. The circuit is 100% solid state and does not require the use of any inductive components or any filaments for its proper operation. The circuit is made up of several sub-circuits including a rectifying and voltage-doubling circuit, a second multiplying circuit, a low power oscillating circuit and a high voltage amplifier circuit. A high frequency AC signal is used to ionize the gas and ignite the lamp, while a DC signal is generated by the circuit to keep the lamp illuminated once it is ignited. The size and weight of the integrated circuit ballast are such that it could be incorporated into the fluorescent lamp package itself.

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patent: 5262700 (1993-11-01), Nilssen
patent: 5289083 (1994-02-01), Quazi

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