Induction heating apparatus using a saturable reactor for...

Details Induction heating apparatus using a saturable reactor for... Induction heating apparatus using a saturable reactor for...

H - Electricity

05

B

327/26

H05B 6/06 (2006.01) H02M 7/523 (2006.01)

Patent

CA 1066368

Abstract of the Disclosure An induction heating apparatus includes a saturable reactor having a pair of rectangular ferrite cores. An air gap is provided in each ferrite core to provide a gradually increasing saturation characteristic on the magnetization curve of the cores. A pair of series- connected load windings is coiled around each core and a control winding is coiled around a common magnetic path of the cores. A power control circuit produces a DC control current that passes through the control winding. The high frequency energization current is passed through the load windings. Means are provided to control the DC control current at a desired setting. Preferably, the actual power level is detected to control the DC current through a feedback loop. - 1 -

248419

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