Ignition voltage
The ignition voltage is the electrical voltage that is required to initiate a gas discharge . It is an essential prerequisite for the operation of gasoline engines , gas discharge lamps , welding power sources and Geiger-Müller counter tubes .
In spark ignition engines, the ignition voltage is required to generate sparks between the electrodes of the spark plug .
Ignition voltages are generated in a wide variety of ways, for example with the help of a transformer or a high-voltage cascade . These can be found, for example, in lasers , neon advertising or electronic flash units .