High-pressure discharge lamp

Details High-pressure discharge lamp High-pressure discharge lamp

H - Electricity

05

B

315/49

H05B 41/19 (2006.01) H05B 41/04 (2006.01)

Patent

CA 1243072

ABSTRACT: The invention relates to a high-pressure discharge lamp comprising a discharge vessel provided with an external auxiliary electrode connected to a starter circuit in the lamp. The starter circuit comprises a voltage division circuit between the connection terminals of the lamp and parallel to the discharge path. A switch- ing element of the starter circuit shunts the voltage division cir- cuit in part and is electrically connected to a control electrode of a semiconductor switch, which is arranged in series with the dis- charge path and in parallel with the voltage division circuit. Advantageously, in the lamp a starter circuit and a lamp current limiting circuit are thus combined.

494289

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