Induction heating or melting with multiple frequencies

Details Induction heating or melting with multiple frequencies Induction heating or melting with multiple frequencies

H - Electricity

05

B

H05B 6/08 (2006.01) H02M 3/33 (2006.01)

Patent

CA 2611042

An apparatus and process are provided for multi-frequency induction heating of a workpiece. Switching devices are used to selectively add, remove or reconfigure capacitive elements in the circuit to change the circuit's resonant frequency, and consequently, the frequency of induction heating or melting power transfer from the power supply to the load.

L'invention concerne un appareil et un procédé permettant de chauffer une pièce par induction avec des fréquences multiples. Des dispositifs de commutation permettent d'ajouter, de supprimer ou de reconfigurer sélectivement des éléments capacitifs dans le circuit afin de modifier la fréquence de résonance du circuit et, par conséquent, la fréquence du transfert de l'énergie du chauffage ou de la fusion par induction de la source d'énergie à la charge.

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