Apparatus for heating an electrically conductive cooking utensil

Details Apparatus for heating an electrically conductive cooking utensil Apparatus for heating an electrically conductive cooking utensil

1979-01-22

1982-03-16

Reynolds, B. A.

Electric heating

Metal heating

Of cylinders

219 1077, 363 49, 363 79, H05B 606, H05B 612

Patent

active

043202730

ABSTRACT:
An induction heating apparatus comprising a static power converter operative to produce high-frequency power from low-frequency power and a heating unit to produce a time-varying magnetic field in response to the high-frequency power. The power converter includes a switching circuit and control means for triggering at high frequency during an incipient stage of operation of the apparatus and lower frequency varying according to the input power to the power converter and the load of the heating unit after the incipient stage.

REFERENCES:
patent: 3333179 (1967-07-01), Freeman
patent: 3354381 (1967-11-01), Temple
patent: 3398352 (1968-08-01), Jameison
patent: 3461374 (1969-08-01), Rhyne
patent: 3733540 (1973-05-01), Hawkins
patent: 3908159 (1975-09-01), Griffey
patent: 3925633 (1975-12-01), Partridge

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