DISPOSITIVO GERADOR DE PLASMA

摘要

The device has coils-sparkplugs (BB1-BB4) placed at an output of a class E power amplifier type power supply circuit (2) by connectors. Each connector (20) is linked to corresponding coil-sparkplug and includes a shift unit to shift resonance frequency of each coil-sparkplug such that the coil-sparkplug presents different resonance frequency. A control device (5) of the circuit determines control signal's frequency among resonance frequencies to selectively control the coils-sparkplugs based on used control frequency. A ferrite element surrounds ends of coils (L1-L4) of the coils-sparkplugs.