An automatic voltage regulator AVR and a field-excitation circuit regulator FCR are arranged. The two circuits of the voltage regulators respectively output control pulse to silicon controlled rectifier bridge control units, control the output of a rectifier circuit, regulate the field-excitation voltage...
A means for varying the frequency of the applied voltage is used to match the impedance of the load with the impedance of the RF power generator within milliseconds.MAVRETIC, ANTONCISZEK, ANDREWSTACH, JOSEPH