First we create a high voltage power supply. It is done by using a step up transformer here it is an ignition coil. It is driven by a square wave oscillator circuit ( at high frequency in KHz). Then the high frequency high voltage power supply is given to a incandescent lamp (filament lamp). The plasma is produced inside the bulb. Bulb is used because it contain the noble gases which are the inactive gases in the nature. When touching the bulb surface the arc is flow to our finger tips. Here the medium glass is present between the arc and our finger so we are safe from burning of skin. So the usage of bulb is safe for us. Finally all are enclosed in a safe enclosure to ensure the safety.

For more details about the circuit, visit my BLOG

https://0creativeengineering0.blogspot.com/2019/01/high-voltage-power-supply.html

For more details about the circuit, visit my BLOG

https://0creativeengineering0.blogspot.com/2019/01/high-voltage-power-supply.html

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