Switching apparatus for operating discharge lamps

Details Switching apparatus for operating discharge lamps Switching apparatus for operating discharge lamps

2005-07-05

2005-07-05

Dinh, Trinh Vo (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

C315S276000, C315S225000, C315S20900T

Reexamination Certificate

active

06914392

ABSTRACT:
The following circuit is proposed for discharge lamps having a particularly high starting voltage. An a.c. voltage generator (1) provides a corresponding a.c. voltage. A starting voltage generating device, which comprises a piezo transformer (2), is connected to the a.c. voltage generator (1) and can be connected at its output to a discharge lamp (4), generates a starting voltage from the a.c. voltage. The starting voltage generating device in this case comprises at least one diode (3) which is connected in parallel with the output of the starting voltage generating device. A zero-order pump circuit is thus integrated in the starting circuit. Advantageous here is the use of higher-order pump circuits.

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patent: 43 10 950 (1993-11-01), None
patent: 2 104 319 (1993-03-01), None

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