Development of Double-Coil Drive Type IH Cooking Heater Corresponding to All-Metals

Abstract

This paper discusses the development of a new type IH cooking heater that uses the double-coil. Adoption of double-coil is the main point of this new IH cooking heater. Current whose phase differs 180 degrees with each other is supplied to a pair of this double-coil. As the result, high frequency—2 times that of supplying current frequency—eddy current flows in the metal load. Using this new technique mentioned above, heating the non-magnetic metals that had been difficult to heat became possible. In this paper, heating characteristics of developed method is made clear. As a conclusion, we report the fact that it has been made possible to heating the non-magnetic metals.