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
Comparison of Transformer Winding Methods for Contactless Power Transfer Systems of Electric Vehicle
TL;DR: In this article, the authors compare the characteristics of double and single-sided windings of contactless power transfer systems used in electric vehicles, and show that the coupling factor increases with the electric current when the gap length is fixed.
Journal ArticleDOI
Design of Compensation Capacitor in S/P Topology of Inductive Power Transfer System with Buck or Boost Converter on Secondary Side
TL;DR: The results show that the optimum capacitance using a buck converter differs from that using a boost converter and the capacitance of the primary-side compensation capacitor also affects the inverter efficiency and resonant-circuit efficiency.
Proceedings ArticleDOI
EMC and EMF safety issues in wireless charging system for an electric vehicle (EV)
TL;DR: In this paper, a numerical investigation is carried out to assess the EMC and EMF safety compliance of a wireless power transfer (WPT) system used to recharge the battery of an electric vehicle (EV).
Journal ArticleDOI
Human powered wireless charger for low-power mobile electronic devices
TL;DR: A new wireless charger, named as Human-Powered Wireless Charger (HPWC), is proposed for low-power mobile electronic devices in this paper and the results suggest the important value of HPWC in future electronics.
Proceedings ArticleDOI
A 10kW transformer with a novel cooling structure of a contactless power transfer system for electric vehicles
TL;DR: In this article, a 10kW transformer with double-sided winding for fast charging has been developed, which has a novel cooling structure using aluminum bars, aluminum junctions, and aluminum plates.
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.