We design inversion control circuit with cmos figure pll cd4046 act as core and microprocessor 80c196kc act as assistant controller . adopting a control method that combine fuzzy controller and pll control , improve induction heating power succeed in startup . adopting electric current voltage pair closed loop feedback design , with trough route capacitance voltage and trough route electric current act as pair closed loop feedback signal , guarantee induction heating power output accuracy
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