Robert Boschgmbh

Univerza V Mariboru, Fakulteta Za Elektrotehniko, Racunalnistvo in Informatiko

Gorazd Stumberger

Heinz-Ullrich Mueller

Beno Klopcic

Drago Dolinar

Martin Petrun

Primoz Sukic

Jernej Cernelic

A method for operating a single-phase, mid-frequency welding transformer formed with a transformer core having a primary coil and a secondary coil connected into a secondary circuit has several steps. The several steps include regulating a magnetic flux density (B) in the transformer core between an upper flux density threshold value (Bm) and a lower flux density threshold value (&#x2212;Bm), by applying, in alteration, a first voltage (U) and a second voltage (&#x2212;U) to the primary coil of the transformer, and regulating a load current (i) in the secondary circuit between an upper load current threshold value (i) and a lower load current threshold value (i), by applying, in alternation, a third voltage (0V)to the primary coil of the transformer.

Method and device for operating a transformer

Growing community of inventors

Ptuj, Slovenia

Gorazd Stumberger