NDLI: A sensor for balancing flux in converters with a high-frequency transformer link

Content Provider	IEEE Xplore Digital Library
Author	Klopper, S. Ferreira, J.A.
Copyright Year	1972
Abstract	A method is introduced for measuring a selected flux threshold below saturation, by means of a pickup winding. The method is illustrated using a block-wave oscillator and involves placing a pickup winding in a square indentation in the center leg of an E-core. Incorporating an air gap, a high-reluctance path is created at the area of the indentation. The remaining area saturates first and forces flux through the high-reluctance path, which induces a voltage on the pickup winding. The method was tested experimentally, and a proposed mathematical model was used to simulate the magnetic behavior of the sensor. Experimental and simulated results are presented and compared to verify the discussed operation. Although similar strategies have been reported previously, the significance of the sensor introduced in this paper is that detection takes place before saturation occurs and the sensor is integrated in the core.
Sponsorship	IEEE Industry Applications Society
Starting Page	774
Ending Page	779
Page Count	6
File Size	139763
File Format	PDF
ISSN	00939994
Volume Number	33
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic flux Saturation magnetization Circuit faults Magnetic cores Magnetic sensors Permeability Transformer cores Voltage Africa DC-DC power converters
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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