Piloting system for electric inverter

An electronic inverter, comprising:

• a rectifying network having an alternating current input and direct current output;
• a plurality of arms connected across said direct current output and including two field effect transistors having source, drain and gate terminals, the source and drain terminals of the two field effect transistors of each arm being connected in series, each arm having an output terminal connected to an alternating inductive current load in the form of an electric motor;
• timing means connected to the gates of said field effect transistors for cyclically rendering alternating ones of said field effect transistors of each arm conductive, thereby energizing said load with alternating current;
• a respective protective diode bridged across each of said field effect transistors;
• a respective gate-triggerable current control element selected from a triac and an SCR in series with one of the field effect transistors of each of said arms and a respective terminal of said direct current output, and assigned to the respective field effect transistor;
• and
• piloting circuitry for said gate-triggerable current control elements for triggering the current control elements into conductivity cyclically only during required intervals of conductivity of the field effect transistors to which the current control elements are assigned, said piloting circuitry responding to initiation of conductivity of the respective field effect transistor with a delay.