Title
Parasitic Resistance Current Sensing Topology For Coupled Inductors
Keywords
Coupled inductors; Current sensing; DC-DC converter; Inductor parasitic resistance; Power electronics; Voltage regulator
Abstract
Traditional current sensing topology based on inductor equivalent series resistance fails to extract phase currents for coupled inductors due to the presence of the magnetising inductance. This article proposes a new direct-current resistance current sensing topology for coupled inductors. By implementation of a simple resistor-capacitor network, the proposed topology can preserve the coupling effect between phases. As a result, real phase inductor currents and total current can be sensed. Detailed mathematical analysis and design equations are presented in this article. Sensitivity and mismatch issues are addressed. Experimental results show that the proposed topologies are able to extract phase current as well as total current with acceptable accuracy.
Publication Date
1-1-2009
Publication Title
International Journal of Electronics
Volume
96
Issue
1
Number of Pages
51-61
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1080/00207210802492336
Copyright Status
Unknown
Socpus ID
57049087541 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/57049087541
STARS Citation
Xiao, Shangyang; Qiu, Weihong; Liu, Jun; Wu, Thomas X.; and Batarseh, Issa, "Parasitic Resistance Current Sensing Topology For Coupled Inductors" (2009). Scopus Export 2000s. 12498.
https://stars.library.ucf.edu/scopus2000/12498