An optimum method of power loss reduction in induction heating appliance

The paper analyzes the power losses in induction heating appliance. Based on the theoretical analysis, two efficient ways are introduced to reduce the power losses. A novel fixed frequency phase control technique (FFP), which makes soft switching possible without changing the frequency of the circuit, is applied in full-bridge circuit. In addition, a calculation of the load resistance is presented so that the winding losses can be minimized by optimize the strands of wires. A simulation of the full-bridge topology is given, using the FFP control. Also, an experiment is taken to prove the feasibility of the soft switching.