Switching aid for power switch components connected in series in an electric energy converter supplied with continuous electrical energy.

摘要

P This device essentially comprises: BR/ - a limiting inductance (LS), connected in series with said components (INT1, INT2), BR/ - a limiting capacitor (CS1, CS2), connectable in parallel on each of said components, BR/ - a dipole (RS) for electrical energy evacuation, BR/ - connection means (DS1, DC1, DS2, DC2) allowing on the one hand the connection of limiting capacitors at the terminals of said components during the blocking phases, and secondly, during the blocking phases the constitution of a demagnetizing circuit for discharging the energy stored in said limiting inductor, to said dipole d evacuation, and, during the priming phases, at first the constitution of discharge circuits for transferring the energy stored in the limiting capacitors to the limiting inductor, and in a second time, the constitution of a degaussing circuit remitting the energy thus transferred in the limiting inductor, to the energy evacuation dipole. / P