Method and circuit for square wave current generation by harmoni

Details Method and circuit for square wave current generation by harmoni Method and circuit for square wave current generation by harmoni

1992-05-19

1994-02-01

Pascal, Robert J.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Inductance in the condenser circuit

315247, 315283, 315307, 315DIG5, 315DIG7, H05B 3700

Patent

active

052835022

ABSTRACT:
An improved arc discharge ballast is disclosed which comprises harmonic resonators, simple switching means and a drive circuit. The harmonic resonators, switching means and drive circuit are coupled to the lamp to provide squaring of the current waveform and provide even light output. By adding odd harmonic current elements to a lamp driven by a conventional ballast, advantages of even light output or power saving is obtained.

REFERENCES:
patent: 4631450 (1986-12-01), Lagree et al.
patent: 5087861 (1992-02-01), Boyd et al.
patent: 5121034 (1992-06-01), Allen et al.

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