Neon light trigger circuit

Published:2011/6/27 7:51:00 Author:Christina | Keyword: Neon light, trigger circuit | From:SeekIC

The circuit is as shown in the figure, it is composed of the R1, RP, C and the neon light. The general neon light can puncture the conduction with the voltage of 60 to 90V, we can form the relaxation oscillator by using this feature, and this relaxation oscillator produces the pulse to trigger the thyristor to adjust the voltage. When the voltage of the capacitor is charged to the neon light's striking voltage, the neon light is punctured, the voltage of capacitance C discharges to the control electrode of the thyristor, and the trigger thyristor conducts. After the voltage of capacitance C discharges, the neon light turns off and the power recharges the C. So we can get a series of trigger pulses. Neon light trigger circuit



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