Pre-heating circuit for a discharge bulb, especially a low energy discharge bulb, comprises a direct current voltage source for the preheater circuit

摘要

Preheater circuit for a discharge bulb, such as a low-energy light bulb, whereby a heating voltage source is provided and a heating current flows through the bulb electrodes to heat them up. The heating voltage source is a direct current voltage source. The invention also relates to a corresponding discharge bulb.