Patent ID: 6359269
Filing Date: 2002-03-19
Classification: G03G,H05B

Abstract:
A heating device for heating a material to be heated according to a magnetic-induction heating method, said device comprising:magnetic-field generation means for generating a magnetic field; an electromagnetic-induction heating member for performing electromagnetic-induction heating by the magnetic field generated by said magnetic-field generation means; current detection means for detecting a current flowing in said magnetic-field generation means; electric power supply means for supplying said magnetic-field generation means with high-frequency electric power; and control means for controlling an operation of said electric power supply means, based on a result of detection of said current detection means, wherein said control means comprises current-peak hold means for holding a peak value of the current detected by said current detection means, and controls the operation of said electric power supply means based on the peak value of the current held by said current-peak hold means.