Journal ArticleDOI
Design considerations for a contactless electric vehicle battery charger
TLDR
This paper overviews theoretical and practical design issues related to inductive power transfer systems and verifies the developed theory using a practical electric vehicle battery charger.Abstract:
This paper overviews theoretical and practical design issues related to inductive power transfer systems and verifies the developed theory using a practical electric vehicle battery charger. The design focuses on the necessary approaches to ensure power transfer over the complete operating range of the system. As such, a new approach to the design of the primary resonant circuit is proposed, whereby deviations from design expectations due to phase or frequency shift are minimized. Of particular interest are systems that are neither loosely nor tightly coupled. The developed solution depends on the selected primary and secondary resonant topologies, the magnetic coupling coefficient, and the secondary quality factor.read more
Citations
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Journal ArticleDOI
An Appropriate Magnetic Coupling Co-Efficient for the Design and Comparison of ICPT Pickups
TL;DR: In this paper, a more appropriate magnetic coupling coefficient, kappaphi, is proposed, which is simple to determine, provides an excellent measure as the magnetic efficiency of a pickup design, and provides a mechanism to decouple the design of the magnetic geometry of the pickup from the rest of the system design.
Patent
Bi-directional inductive power transfer
TL;DR: In this article, a phase control technique for contactless power transfer in an inductive power transfer system using a phase controller is presented, where the phase of a secondary-side converter output voltage is adjusted with respect to that of a primary side converter.
Journal ArticleDOI
Modelling and analysis of a capacitively coupled contactless power transfer system
TL;DR: In this paper, an accurate non-linear circuit model is established and the stroboscopic theory is extended to determine the zero-voltage switching (ZVS)-operating frequency of the system.
Journal ArticleDOI
Six Degrees of Freedom Mobile Inductive Power Transfer by Crossed Dipole Tx and Rx Coils
TL;DR: In this paper, the authors proposed a 3D omnidirectional inductive power transfer (IPT) with a plate-type cross-dipole coil for an arbitrary direction within 1m from a plane transmission (Tx) coil.
Proceedings ArticleDOI
Analysis and design considerations for a contactless power transfer system
S. Chopra,Pavol Bauer +1 more
TL;DR: In this article, general design criteria are described for efficient power transfer in a CPT system and the need for compensation has been discussed and general conditions for achieving bifurcation-free operation for each compensation topology have been derived.
References
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Journal ArticleDOI
Stability and control of inductively coupled power transfer systems
TL;DR: In this paper, inductively coupled power transmission (ICPT) is used for transferring power from an extended loop (track) to a number of galvanically isolated movable pickup coils.
Journal ArticleDOI
A contactless electrical energy transmission system for portable-telephone battery chargers
Yungtaek Jang,Milan M. Jovanovic +1 more
TL;DR: The proposed technique enables the implementation of high-efficiency high-power-density fully regulated fully regulated CEET systems suitable for applications with a wide input and load range.
Journal ArticleDOI
An energy transmission system for an artificial heart using leakage inductance compensation of transcutaneous transformer
G.B. Joung,Bo-Hyung Cho +1 more
TL;DR: In this paper, a transcutaneous transformer to power an artificial heart through intact skin has been designed and built in order to realize both high-voltage gain and minimum circulating current.
Journal ArticleDOI
A noncontact charger using a resonant converter with parallel capacitor of the secondary coil
TL;DR: In this article, a noncontact charging system using a resonant converter is presented, where the power transfer ability of a detachable transformer is improved by using a parallel capacitor connected to the secondary coil.
Proceedings ArticleDOI
Design of loosely coupled inductive power transfer systems
O.H. Stielau,Grant A. Covic +1 more
TL;DR: In this paper, a design methodology for loosely coupled inductive power transfer systems is proposed, where the level of compensation, as well as possible compensation topologies, are discussed in the design process.