Igniting device

Abstract

In order to further improve the ignition of gas-discharge lamps, particularly high-pressure gas-discharge lamps, an ignition circuit arrangement is provided for a gas-discharge lamp to which a supply circuit for providing an alternating current supply voltage to the lamp is assigned. The inventive ignition circuit arrangement (1) comprises: an ignition transformer (20) that is connected to a trigger circuit (2) on the primary side and is connected to the lamp (3) on the secondary side for transmitting an ignition pulse; an input power source (30) for the ignition trigger circuit; a first switch means (40) in the trigger circuit, and; control means that control the first switch means. The inventive ignition circuit arrangement is characterized in that for assisting the ignition process in the supply circuit, an energy accumulator (10) that can be controlled by the control means, particularly a voltage source that can be controlled by the control means is arranged in series with regard to the gas-discharge lamp (3). The controllable energy accumulator serves to provide an additional electrical supply during the ignition process over and above the actual alternating current supply ofthe lamp. The invention also relates to a method for igniting a gas-discharge lamp.

Description

technical field [0001] The invention relates to an ignition circuit arrangement for igniting a gas discharge lamp, in particular a high-pressure gas discharge lamp, and to a method for igniting the lamp. Background technique [0002] Especially for high-pressure gas discharge lamps, the ignition voltage required for starting is much higher than the supply voltage for maintaining the discharge. Typically, in the cold start state, an ignition voltage pulse of approximately 1 kV to 5 kV is required for the ignition voltage pulse, depending on the respective lamp used. Due to the pressure increase at high temperatures, much higher ignition voltages are required for thermal ignition of high-pressure gas discharge lamps, which lie in the order of 10 to 60 k, depending on the respective material to be ionized and the power of the lamp used. within the volt range. [0003] Conventional high-voltage ignition devices for high-pressure gas discharge lamps are usually designed in the ...

AI Technical Summary

Problems solved by technology

Generally speaking, the entire ignition operation will last in the range of several seconds, so that especially the ignition transformer has a high inductance, which will have a negative impact on the amount of space required for such an ignition circuit on the one hand and on the other hand in the core The reverse magnetization causes an acoustic load on the

Images