A device for generation of the plasma with reduction of the overvoltage across the terminals of the switching transistor, and the corresponding control

摘要

The plasma generation device comprises a glow plug comprising a plasma generation of the inductive, capacitive resonator (rs2) able to produce a high voltage generation means (mgn) configured so as to deliver successive series of control pulses to a control frequency, and a voltage generator (geni) comprising a switching transistor (m1), whose control electrode is connected to the output of the means for generating and an output able to deliver a pulse train of the voltage at the resonator in response to the control pulse train received on the control electrode of the switching transistor. On the final part (ifp) of each train (tr), the generation means are configured so as to deliver the control pulses to a control frequency different from the resonant frequency of the resonator.