Maximum Power Transfer versus Efficiency in Mid-Range Wireless Power Transfer Systems
نویسندگان
چکیده
منابع مشابه
eGaN® FETs in Wireless Power Transfer Systems
Many of the wireless energy transfer solutions have targeted portable device charging that require features such as low profile, high efficiency, robustness to changing operating conditions and, in some cases, light weight. These requirements translate into designs that need to be efficient and able to operate without a bulky heatsink. Furthermore the design must be able to operate over a wide ...
متن کاملSimultaneous mid-range power transfer to multiple devices
Electromagnetic resonators strongly coupled through their near-fields A. Karalis, J. D. Joannopoulos, and M. Soljačić, Ann. Phys. 323, 34 2008 ; A. Kurs, A. Karalis, R. Moffatt, J. D. Joannopoulos, P. Fisher, and M. Soljačić, Science 317, 83 2007 are able to achieve efficient wireless power transfer from a source to a device separated by distances multiple times larger than the characteristic s...
متن کاملWireless Power Transfer System
This paper presents a survey of recent wireless power transfer systems. The issue of wireless power transfer is to achieve a highly efficient system with small positioning errors of the facilities setting. Several theories have been presented to obtain precise system design. This paper presents a summary of design theory for short range power transfer systems and detailed formulations based on ...
متن کاملMaximum efficiency formulation for inductive power transfer with multiple receivers
This paper presents closed-form expressions of optimal loads that achieve the maximum efficiency for inductive power transfer (IPT) system with multiple receivers. We model the system as a passive N-port network and jointly optimize both reactive and resistive components of the loads. The derived expression allows one to predict RF-to-RF efficiency of IPT system with any number of receivers, un...
متن کاملResonance and Efficiency in Wireless Power Transfer System
Many papers about wireless power transfer use resonant phenomena. In general if input frequency is adjusted to the resonant frequency, the amplitude of current or voltage will be maximal. Since the power of resistive load is determined by its current or voltage, the power will be maximal at the resonance. As for wireless power transfer, it is one of significant specifications to transfer power ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Microwaves, Optoelectronics and Electromagnetic Applications
سال: 2015
ISSN: 2179-1074
DOI: 10.1590/2179-10742015v14i1433