In the DC AC converter circuit, the 555 timer timer integrates a square wave. Continuously transmits and cuts square wave transistors from terminal 3 of terminal 555. The transmission of transistors initiates a variable current transition from the 12 Volt windings of the transformer.
Variable currents passing through the primary windings of the transformer generate a variable magnetic field. The variable magnetic field formed in the primary produces a high AC voltage in the thin-section multi-winding secondary winding.
Note: The circuit is for experimental purposes and the power is low. Be careful when the circuit generates high voltage.