Accurate extraction of noise source impedance of an SMPS under operating conditions

Accurate extraction of noise source impedance of an SMPS under operating conditions

An accurate measurement method to extract the common mode (CM) and the differential mode (DM) noise source impedances of a switched-mode power supply (SMPS) under its operating condition is developed and val...

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Bibliographic Details
Main Authors:	Canavero, Flavio G., Tarateeraseth, Vuttipon, Hu, Bo, See, Kye Yak
Other Authors:	School of Electrical and Electronic Engineering
Format:	Article
Language:	English
Published:	2010
Online Access:	https://hdl.handle.net/10356/91398 http://hdl.handle.net/10220/6219
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Institution:	Nanyang Technological University
Language:	English

Description
Summary:	An accurate measurement method to extract the common mode (CM) and the differential mode (DM) noise source impedances of a switched-mode power supply (SMPS) under its operating condition is developed and validated. With a proper premeasurement calibration process, the proposed method allows extraction of both the CM and the DM noise source impedances with very good accuracy. These noise source impedances come in handy to design an electromagnetic interference filter for an SMPS systematically with minimum hassle.