A Study on EMI Noise Countermeasure Design of a Dishwasher

In this paper, we introduce and propose a design strategy implemented to mitigate electromagnetic interface (EMI) issues arising from the switching circuitry of dishwashers, encompassing components such as inverters and switched-mode power supplies (SMPSs). The focus lies on addressing conducted emi...

Full description

Saved in:
Bibliographic Details
Published in:Electronics (Basel) 2024-01, Vol.13 (1), p.94
Main Authors: Lee, Soongkeun, Joo, Changdae, Kim, Taekue
Format: Article
Language:English
Subjects:
Analysis
Circuits
Control
Design
Design and construction
Dishwashing machines
Electromagnetic compatibility
Electromagnetic interference
Electromagnetism
Households
Impedance
Power supply
Resonant frequencies
Switched mode power supplies
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, we introduce and propose a design strategy implemented to mitigate electromagnetic interface (EMI) issues arising from the switching circuitry of dishwashers, encompassing components such as inverters and switched-mode power supplies (SMPSs). The focus lies on addressing conducted emissions (CEs) by analyzing the impedance of the load and core characteristics at the current level to implement enhancements. Additionally, we describe the incorporation of a common mode (CM) core attachment design aimed at the resonance frequency of the motor, effectively blocking noise generated by this resonant frequency and thereby enhancing radiated power (RP). Also, we discuss the modeling of noise filters and the overall system, comparing impedance characteristics, and validating the effectiveness of the proposed improvements through standardized tests. Furthermore, practical application to mass-produced products is demonstrated by eliminating internal harness cores and designing noise filters to reduce their size, all within the context of dishwasher EMI countermeasures.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics13010094