Ionization tube simmer current circuit

Details Ionization tube simmer current circuit Ionization tube simmer current circuit

1993-07-07

1994-12-13

Pascal, Robert J.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Flashers

315205, 315243, 315287, 315307, 315105, 315106, H05B 3700

Patent

active

053732154

ABSTRACT:
A highly efficient flash lamp simmer current circuit utilizes a fifty percent duty cycle square wave pulse generator to pass a current over a current limiting inductor to a full wave rectifier. The DC output of the rectifier is then passed over a voltage smoothing capacitor through a reverse current blocking diode to a flash lamp tube to sustain ionization in the tube between discharges via a small simmer current. An alternate embodiment of the circuit combines the pulse generator and inductor in the form of an FET off line square wave generator with an impedance limited step up output transformer which is then applied to the full wave rectifier as before to yield a similar simmer current.

REFERENCES:
patent: 3863102 (1975-01-01), Herzog
patent: 4134044 (1979-01-01), Holmes
patent: 4340843 (1982-07-01), Anderson
patent: 4603281 (1986-07-01), Nilssen
patent: 4904907 (1990-02-01), Allison et al.
patent: 4945291 (1990-07-01), Masaki
patent: 5008599 (1991-04-01), Counts
patent: 5140228 (1992-08-01), Biegel

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