Discharge lamp ignition circuit having a bandpass filter connect

Details Discharge lamp ignition circuit having a bandpass filter connect Discharge lamp ignition circuit having a bandpass filter connect

1996-07-23

1998-11-24

Pascal, Robert

Electric lamp and discharge devices: systems

Surge generator or inductance in the supply circuit

315290, 315DIG5, 315276, H05B 4114

Patent

active

058412450

ABSTRACT:
In an ignition circuit for a high-pressure discharge lamp having a pulse generating circuit in which ignition pulses are generated by a voltage-dependent breakdown element and a pulse transformer, a bandpass circuit has been inserted between the secondary winding of the pulse transformer and the discharge lamp. The bandpass filter is tuned to the fundamental frequency or a harmonic of the pulses generated by the pulse generation circuit.

REFERENCES:
patent: 3476977 (1969-11-01), Hallay
patent: 3553526 (1971-01-01), Moerkens
patent: 3675078 (1972-07-01), Levy
patent: 4723097 (1988-02-01), Heindl et al.
patent: 4749914 (1988-06-01), Feher et al
patent: 5084655 (1992-01-01), Van Zanten
patent: 5087859 (1992-02-01), Blankers
patent: 5534753 (1996-07-01), Blom et al.

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