Induction heating apparatus

Details Induction heating apparatus Induction heating apparatus

1977-02-09

1978-09-19

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

219 1077, 323 4, 363 80, 363 97, H05B 504

Patent

active

041156765

ABSTRACT:
An induction heating apparatus comprises a DC power source, a series resonant circuit of a heating coil and capacitance connected between the terminals of the DC power source, a diode connected in parallel with the capacitor and in polarity-reversed relation to the DC power source, a transistor having a collector-emitter path connected in parallel with the capacitor, and a control circuit for controlling the conductive state of the transistor in accordance with the magnitude and direction of a current flowing through the heating coil.

REFERENCES:
patent: 3129366 (1964-04-01), Fry
patent: 3925633 (1975-12-01), Partridge
patent: 3930193 (1975-12-01), Kornrumpf et al.
patent: 4010342 (1977-03-01), Austin
patent: 4016391 (1977-04-01), Kiuchi et al.
patent: 4016392 (1977-04-01), Kobayashi et al.

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