Reliable ignition circuit for a high pressure discharge lamp

Details Reliable ignition circuit for a high pressure discharge lamp Reliable ignition circuit for a high pressure discharge lamp

1998-06-01

1999-11-16

Le, Hoanganh

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315291, 315DIG5, 315289, 315307, H05B 4100

Patent

active

059864133

ABSTRACT:
A circuit arrangement suitable for igniting a high-pressure discharge lamp and provided with input terminals for connection to a voltage source. A pulse generating circuit includes a switch, a primary winding of a pulse transformer, and a non-linear capacitor which shunts the switch and the primary winding. An electrical connection is provided between a secondary winding of the pulse transformer and lamp connection terminals. The non-linear characteristic of the capacitor results in a more reproducible amplitude of the generated ignition voltage pulse.

REFERENCES:
patent: 3996495 (1976-12-01), Herman
patent: 4523795 (1985-06-01), Johnson et al.
patent: 5233273 (1993-08-01), Waki et al.

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