Circuit containing symetrically-driven coil for energizing elect

Details Circuit containing symetrically-driven coil for energizing elect Circuit containing symetrically-driven coil for energizing elect

1991-11-14

1993-04-06

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315344, H05B 4124

Patent

active

052006727

ABSTRACT:
An arrangement including an electrodeless discharge lamp having a sealed envelope enclosing an ionizable medium capable of emitting radiant energy when subjected to a radio frequency field and a circuit for operating the lamp. The circuit includes an oscillator for generating an output signal at a given radio frequency, an RF amplifier responsive to the oscillator output signal, and an output tank circuit including an induction coil and a capacitor connected in parallel. The RF amplifier includes a pair of semiconductor switches operating in a Class E mode. The induction coil is positioned in close physical proximity to the medium in the envelope for coupling to the medium an electric field having a magnitude sufficient to initiate ionization of the medium and a magnetic field for maintaining the ionization. In a preferred embodiment, the amount of EMI/RFI noise generated in the circuit is reduced by symmetrically driving the induction coil.

REFERENCES:
patent: 4048541 (1977-09-01), Adams et al.
patent: 4245178 (1981-01-01), Justice
patent: 4383203 (1983-05-01), Stanley
patent: 4631449 (1986-12-01), Peters
patent: 4748383 (1988-05-01), Houkes
patent: 4748634 (1988-05-01), Hesterman
patent: 4877999 (1989-10-01), Knapp

Affiliated with

Also associated with

Rating

Circuit containing symetrically-driven coil for energizing elect does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit containing symetrically-driven coil for energizing elect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit containing symetrically-driven coil for energizing elect will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-539126