Adaptation of inductive power transfer to small household appliances that can operate on induction heating cooktops: wireless electric kettle

In this study, the adaptation of the small household electric kettle to the inductive wireless power transfer system, which will allow it to be used as a load in induction heating cooktops, is presented. In the wireless power transfer system, a transmitter coil is used in the characteristics of the coil used in domestic induction cookers. In order to successfully transfer power, the receiving side is placed on the bottom of the existing corded electric kettle. The magnetic system model consisting of aligned transmitter and receiver coils is created in the Maxwell program. In the created model, the analysis is carried out depending on the air gap and frequency, which are the variables that affect the wireless power transfer. The coil model created to examine the dynamic behavior of the system is used in the simulation of the electronic circuit. The prototype of the system is established in the laboratory and tested under different output power values. Experimental results confirm the magnetic model and simulation results. As a result, wireless power transfer is realized without loss on performance in the electric kettle. System efficiency is greater than 90% specified in the standard and the harmonic currents drawn from the mains are lower than the values determined by the standard. Moreover, the results obtained confirm the usability of the proposal on induction hobs.