Electric heating – Inductive heating – With power supply system
Patent
1994-06-07
1996-04-02
Leung, Philip H.
Electric heating
Inductive heating
With power supply system
219665, 219666, H05B 608
Patent
active
055043097
ABSTRACT:
An induction heater comprises a coupled pair of inverters and an induction head for generating heat, coupled to the second inverter. The output signal of the first inverter which operates at a fixed frequency, is controlled by feedback indicative of the heat output of the induction head. A control circuit processes the feedback information to compensate for power losses in the induction head. The output of the first inverter is electrically coupled to the input of the second inverter, which operates at an adjustable frequency which is selected by the user to optimize heating. The power delivered to the induction head is dependent on the output voltage of the second inverter, which is dependent on the output signal of the first inverter.
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Leung Philip H.
Miller Electric Mfg. Co.
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