Honey Durga Tiwari
Sungkyunkwan University, South Korea
Posters-Accepted Abstracts: Sensor Netw Data Commun
Propelled by the needs of smart devices and wearable electronics the fiction of wireless power charging will soon become a reality. There are three competing wireless power standard, Qi, PMA and Rezence, currently being used for providing viable consumer solutions. These competing standards use tightly coupled, non-resonant, inductive coupling or loosely coupled, resonant inductive coupling method for wireless power transfer. To establish power transfer each standard employs a different communication system and strategy. The difference in underlying technology forces the consumers to choose not based on the merit of the technologies, but based on the preferences made by vendors and service providers. With major manufacturers like Samsung, Sony, and LG, being the members of all the industry groups, cross-platform solutions may be available. However, the attempt to provide multi-mechanism solution operating in different wavelength, integration of Qi (100-205 KHz), PMA (277-357 KHz) and Rezence (6.78 MHz) will require the design of wide frequency range coupling circuits, adaptive antenna mechanism, isolation circuits and multiple communication sub-section native to respective charging mechanism. Finally the coupled-inductor acts as frequency-selective channel with additive white Gaussian noise. These conflicting requirements often violate the primary design goal of area and power consumption optimization. Through this discussion different design aspects for integrating multiple wireless charging standards are addressed. Various standards are compared with respect to their efficiency, cost and noise models. Finally, a resource sharing based framework is presented for the integration of competing standards in a single system.
Email: honeydurga@gmail.com
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