Robert Bosch

Beno Klopcic

Thomas Klinger

Anton Solar

Rado Lisjak

Heinz-Ullrich Mueller

Drago Dolinar

Gorazd Stumberger

Igor Belic

Bojan Secic

Gregor Cernivec

Damjan Rihtarsic

Matej Kocar

Martin Petrun

Robert Brezovnik

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

A semiconductor module () for connecting to a transformer winding () includes a semiconductor component () that is disk-shaped and disposed between two contact plates (). One of the contact plates () is acted upon using a cooling fluid on its side facing away from the semiconductor component ().

Semiconductor module for connecting to a transformer winding, and transformer arrangement

The invention relates to a winding element () for conducting current, forming a component of a coil winding (), especially of a (welding) transformer winding, comprising fixing means () for fixing the winding element () to a carrier component (). The invention also relates to a transformer arrangement (), especially a welding transformer arrangement, comprising a primary winding () and a secondary winding (), the primary winding () and/or secondary winding () comprising at least one winding element () according to the invention.

Winding element for a coil winding and transformer arrangement

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Ljubljana, Slovenia

Beno Klopcic