Heating device and control method thereof

Abstract

The present invention provides a heating device and a control method thereof. The heating device includes an electromagnetic wave generating module and a matching module. The control method includes: controlling an electromagnetic wave generating module to generate an electromagnetic wave signal of a preset heating power; and determining a load matching degree of the electromagnetic wave generating module, and adjusting impedance of the matching module based on the load matching degree. When the load matching degrees determined within a preset adjustment time are all less than or equal to a first matching threshold, the electromagnetic wave generating module is controlled to stop working, such that the object to be processed that contains more components having a poor electromagnetic wave absorption capacity is prevented from being continuously heated after its moisture has been converted from ice to liquid.

Dependencies are inferred from the claim text.