The DC12v/24v/48v/60v/72v/96V to AC380V/15KW inverter converter (See: 12VDC to 3 Phase 400V ), which is already a commodity, replaces OPA and only requires PGE to complete MSE, which undoubtedly greatly facilitates the application of MSE. Generally, by using the inverter effect of the thyristor, the DC is converted to AC, and then the inverter is converted to AC. Then, the transistor is used for multi-stage amplification, and finally, a coil with a magnetic core is input. The output terminal can generate a voltage of tens of thousands of volts. Ignition coils such as motorcycles and gasoline generators all use this principle.