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Application filed by Universitatea Tehnică "Gheorghe Asachi" Din IaşifiledCriticalUniversitatea Tehnică "Gheorghe Asachi" Din Iaşi
Priority to RO95-00425ApriorityCriticalpatent/RO117519B1/en
Publication of RO117519B1publicationCriticalpatent/RO117519B1/en
The invention relates to a welding ferromagnetic inverter meant to be used for alternating-current welding. According to the invention, the inverter performs the secondary voltage control in a predetermined range, by modifying the value of the control current of a magnetic amplifier (A.M.) having the circuit of the neutral conductor in the primary circuit (M) as a load circuit. The modification of the control current of the magnetic amplifier (A.M.) modifies the current amplitude in the neutral conductor, and, respectively, the saturation of the magnetic core of the inverter, thereby modifying the value of the voltage induced into the secondary winding thereof.