Journal ArticleDOI
Design considerations for a contactless electric vehicle battery charger
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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
Loss Analysis of Circular Wireless EV Charging Coupler
Shuo Wang,David G. Dorrell +1 more
TL;DR: In this article, the analysis of a circular coupler with ferrite bar cores was presented, and the analysis was carried out using finite element analysis in ANSYS Maxwell and the copper loss assumed the use of Litz wire.
Journal ArticleDOI
Circularly Polarized Retrodirective Antenna Array for Wireless Power Transmission
TL;DR: This is the first demonstration of a WPT system using a mixer-based analog RDA, and Measurements and simulations in the reactive near-field of the system are in agreement in terms of the tracking capabilities of the high-power CP-RDA.
Proceedings ArticleDOI
High efficiency contactless power transfer system for electric vehicle battery charging
Cong Zheng,Rui Chen,Eric Faraci,Zaka Ullah Zahid,Matthew Senesky,Dave Anderson,Jih-Sheng Lai,Wensong Yu,Chien-Yu Lin +8 more
TL;DR: In this paper, a contactless charging system for an electric vehicle (EV) battery is proposed, which is composed of three parts, a high frequency power supply from a full-bridge inverter with frequency modulation, a loosely coupled transformer that utilizes series resonant capacitors for both the primary and secondary windings, and a rectification output circuit that uses a fullbridge diode rectifier.
Proceedings ArticleDOI
A single controller for inductive power transfer systems
TL;DR: In this article, the authors presented a new IPT control technique, which requires only a single controller located on the powering side to effectively control the amount of "contactless" power delivery to the receiving side.
Journal ArticleDOI
Fuzzy logic-based directional full-range tuning control of wireless power pickups
TL;DR: In this article, a fuzzy logic-integrated directional full-range tuning controller (DTC) for the output voltage regulation of a contactless parallel-tuned inductor-capacitor (LC) power pickup by switching the parallel tuning capacitor of the pickup circuit to make the equivalent tuning capacitance variable has been explained.
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.