The gas discharge light source is different from the heat radiation source. Generally, the power supply does not illuminate the lamp, but there is a starting process, that is, the process of lighting the lamp. Each discharge lamp has a corresponding ignition voltage (also known as breakdown voltage). Only when the voltage across the lamp exceeds the ignition voltage, it is possible to establish a gas discharge and illuminate the lamp. The ignition voltage of a discharge lamp is as high as tens of thousands of volts, and some are as low as several hundred volts, which are generally greater than the power supply voltage.
Therefore, the general discharge lamp cannot be lit when the power is turned on. A voltage generating device that is larger than the ignition voltage of the gas discharge source must be provided in the circuit, which is the starter. According to the theory of gas discharge, the ignition voltage of the gas discharge source can be reduced under certain conditions, such as preheating of the cathode, the surface of the lamp is coated with a conductive film or a conductive strip, an auxiliary electrode is installed, and the lamp is filled with Penning gas, and the lamp is added. Radioactive materials, using high frequency voltage, etc. Therefore, depending on the type of gas discharge source, various actuators are gradually formed. The main function of the starter is to activate the light and illuminate the light. Once the discharge light is illuminated, the starter will not work and will be used until the next lighting. Therefore, the starter should be as simple, light and reliable as possible, and some can even be removed from the circuit after the discharge lamp is lit without affecting the normal operation of the discharge lamp.
Therefore, the general discharge lamp cannot be lit when the power is turned on. A voltage generating device that is larger than the ignition voltage of the gas discharge source must be provided in the circuit, which is the starter. According to the theory of gas discharge, the ignition voltage of the gas discharge source can be reduced under certain conditions, such as preheating of the cathode, the surface of the lamp is coated with a conductive film or a conductive strip, an auxiliary electrode is installed, and the lamp is filled with Penning gas, and the lamp is added. Radioactive materials, using high frequency voltage, etc. Therefore, depending on the type of gas discharge source, various actuators are gradually formed. The main function of the starter is to activate the light and illuminate the light. Once the discharge light is illuminated, the starter will not work and will be used until the next lighting. Therefore, the starter should be as simple, light and reliable as possible, and some can even be removed from the circuit after the discharge lamp is lit without affecting the normal operation of the discharge lamp.
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