The Power Supply for IH Corresponding to Various Conditions

Equivalent parameters of IH (Induction Heating) are varied with various conditions or factors. This paper discusses the variation of equivalent parameters of IH under different conditions or factors and presents the power supply for IH which operates stably even if each parameter changes. To ensure stable operation, the fluctuation width of each parameter is investigated. Regarding the IH equivalent value, the difference between a theoretical value and an actual measurement has been estimated. Regarding the IH equivalent value, the difference between a theoretical value and an actual measurement has been estimated. In order to ensure stable operation even if parameters fluctuate, the quasi variable capacitor is proposed and applied to the power supply for IH. The usefulness of the proposed power supply using a quasi variable capacitor is verified through experimental results.