(57) Use of: utility model relates to a power converter equipment and is designed to extend the frequency range of the output voltage in the induction heating installations. The utility model can be used in mechanical engineering for the high heat treating metals and alloys.; Technical result: the expansion capability, increased frequency of the current load matching and voltage regulation of the output voltage by varying the control coil current.; Summary of the utility model: magnitotiristorny frequency converter comprising a cascade connection of an inverter and a frequency multiplier, characterized in that the capacitor which is connected in parallel to the primary winding introduced, and a number of branches in the control winding which is connected in series to one of smoothing chokes.
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