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Frequency selected, variable output inductor heater system

  • US 6,316,754 B1
  • Filed: 04/28/2000
  • Issued: 11/13/2001
  • Est. Priority Date: 07/09/1997
  • Status: Expired due to Fees
First Claim
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1. A multizone induction heating system comprising:

  • a. a coil system divided into a plurality of zones, at least two of said zones having an electrical resonance frequency, said resonance frequencies having at least two different values;

    b. a power supply having an output frequency; and

    c. a control system to control the power delivered to each of said zones comprising a control circuit to change said output frequency of said power supply.

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