EMI Reduction Via Resonator Coils in Glassless Integrated Domestic Induction Systems

Emilio Plumed,Ignacio Lope,Jesus Acero

doi:10.1109/access.2021.3112587

Emilio Plumed, Ignacio Lope + Show 1 more

Open Access

https://doi.org/10.1109/access.2021.3112587

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Abstract

This paper explores the magnetic flux emissions of induction heating systems compared with inductively coupled heating systems. Inductively coupled heating uses a resonator coil attached to the ferromagnetic load in order to improve energy transfer from the appliance to the load. The magnetic flux emissions of both kinds of systems are simulated, and their dependence on coil current and turn number is outlined. The paper focuses on emitted near field, whose measurement and limits are determined by norm. Several prototypes are developed and tested to verify the simulations.

Highlights

D OMESTIC induction heating (IH) technology has evolved during the last 20 years enabling the development of induction cooktops, which nowadays can be considered standard consumer electronics products [1]
This paper aims to analyze the electromagnetic emissions of domestic emerging IH applications where the load is placed at higher distance than in conventional cooktops
In this paper it has been proven that inductively coupled heating (ICH) systems emit the same amount or less magnetic flux than IH systems of similar geometry and characteristics

Summary

Introduction

D OMESTIC induction heating (IH) technology has evolved during the last 20 years enabling the development of induction cooktops, which nowadays can be considered standard consumer electronics products [1]. The advantages of these apparatus in contrast with traditional cooking systems (gas, resistive or radiant) are recognized by an increasing number of users worldwide. The Wireless Power Consortium is launching a cordless kitchen standard, which is built on the success of the Qi standard [16] This standard covers the field of cooktops that deliver up to 2200 W to smart cordless kitchen appliances [17]. The main improvements of glassless systems versus conventional IH systems are their aesthetics, the increase of multi-function working area and the ease of cleaning

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