Estimating The Differential Mode Emission of a Boost Converter Based On The Input Capacitor Series Resistance

Yoppy,; Mandaris, Dwi; Bakti, Aditia Nur; Nugroho, Hutomo Wahyu; Yudhistira, Yudhistira; Hamdani, Deny

doi:10.1109/gemccon57842.2023.10078212

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A Boost Converter1

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2023

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“…However, the general trends of the estimation and measurement results are matched quite well. Previously in [13] , the DM noise estimation was done by considering only the capacitor series resistance (ESR). The complex impedance method used in this paper shows better accuracy.…”

Section: A Boost Convertermentioning

confidence: 99%

Estimating the Differential Mode Noise of a DC-DC Converter

Yoppy,

Mandaris,

Bakti

et al. 2023

J. Elektron. dan Telekomun.

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Electromagnetic noise emission is inevitable in a DC-DC converter due to the employed switching technique. In low frequency, the noise propagating through cabling and conductive media is called a conducted emission. A conducted emission consists of differential mode and common mode noise. It is advantageous to know an estimate of emission level for each mode during the design phase so that suitable mitigation can be included earlier.. This paper aims to focus on a method to estimate the differential mode noise emission of a DC-DC converter. The estimation is computed using the input capacitor complex impedance and the current that flows through it. As a study case, a boost and buck converters are used for evaluation. The estimation and measurement results are compared. Despite differences at some frequencies, the estimated and measured results generally agree well. Because of its simplicity, the proposed method can be used as a practical tool in the EMC aspect of DC-DC converter design.

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Section: A Boost Convertermentioning

confidence: 99%