NDLI: Study of Measurement Approach of Loop Gain of Converter

Content Provider	IEEE Xplore Digital Library
Author	Weiping Zhang Yunpeng Chen Yuanchao Liu Dongyan Zhang Zheng Meng
Copyright Year	2006
Description	Author affiliation: Lab. of Green Power & Energy Syst., North China Univ. of Technol., Beijing (Weiping Zhang; Yunpeng Chen; Yuanchao Liu; Dongyan Zhang; Zheng Meng)
Abstract	In this paper, an approach by using the Agilent 4395A to measure the loop gain of the power supply has been deeply developed. The main issues have been investigated as the following: (1). Measurement techniques about the parasitic parameters of the filtering components will be studied. One is how to test of the electrolyte capacitor by Agilent 4395A; another is how to test dynamic inductance of filter inductor by Tektronix TDS5052 with TDSPWR3 software; (2). A measurement approach for loop gain has been put forward; (3). A prototype has been made up and its loop gain has been tested to verify the proposed approaches; (4). The experimental result has first revealed that the biggest analytic error of the loop gain occurs nearby about the resonance frequency of low pass filter. It can be explained that the error results from the equivalent resistor of the power diode and MOSFET; (5). Based on considering the equivalent resistor, a novel accurate small-signal model of buck converter has been proposed to reduce the theoretic error. The proposed approaches, model and other results have provided a powerful tool to analyze and design a power supply
Sponsorship	China Electrotechnical Soc. IEEE Power Electron. Soc
Starting Page	1
Ending Page	6
File Size	293655
Page Count	6
File Format	PDF
ISBN	1424404487
DOI	10.1109/IPEMC.2006.4777983
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gain measurement Power supplies Software testing Resistors Power measurement Measurement techniques Filtering Capacitors Inductance Filters power components stability loop gain model
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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