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Industry News
January 4, 2013
Top 10 Wireless Charging Developments in 2012
2013 New Year's Power Celebration
Wireless charging will be a fast-growing segment of the power electronics industry in 2013. Significant developments began accelerating last year. The following "top 10" developments selected by the PowerPulse editors highlight important trends in wireless charging that will continue in 2013 and beyond.
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10: Efficient Power Conversion Announces WiTricity Demonstration System Featuring High-Frequency Gallium Nitride (eGaN) FETs
Efficient Power Conversion Corporation (EPC) announced a high efficiency wireless power demonstration system utilizing the high frequency switching capability of gallium nitride transistors. eGaN® FETs from EPC are well suited for these systems because of their ability to operate efficiently at high frequency, voltage, and power.
Highly resonant wireless power transfer was invented by the founders of WiTricity and WiTricity licenses its intellectual property to companies seeking to build products based on this exciting new technology. Capable of transferring power over distance, WiTricity technology enables a wide range of consumer, medical, industrial and automotive applications. Products using highly resonant wireless power transfer can meet stringent regulatory guidelines, and is safe for people and animals.
The full story can be found here
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9: ON Semiconductor Introduces High-Efficiency Wireless Charging ICs
ON Semiconductor has released the NMLU1210, an innovative power MOSFET integrated circuit (IC) for wireless charging applications in portable products such as cell phones, media tablets, portable media players, digital still cameras and GPS units. The NMLU1210 is a 20V N-channel full bridge semi-synchronous rectifier, that incorporates a dual Schottky barrier diode supporting up to 3.2A operation plus two MOSFETs with a 17mΩ (ma") (typical) Rds(ON) to minimize conduction losses and substantially increase efficiency of the charging system.
The full story can be found here
8: Toshiba Launches High-Current Chipset for Free Positioning Wireless Charging
Toshiba Electronics Europe has announced a free positioning wireless charging chipset consisting of a high-efficiency power transmitter and receiver for charging smartphones and other mobile products anywhere on the battery charging pad. The Toshiba chipset is fully compliant with the Wireless Power Consortium (WPC) Qi interface specification, A4, A8, A12 and A14. It includes the TB6865FG power transmitter and TB6860WBG receiver and features a two-coil control architecture for cost-effective battery charging.
The full story can be found here
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7: TI Transforms Mobile Charging with Wireless Power
Texas Instruments Incorporated introduced its first single-chip wireless power receiver with integrated battery charger and a new "free-position" transmitter integrated circuit, which expands the charge area by 400 percent. The two bqTESLA™ circuits give smartphone users a simpler, stress-free charging experience and help designers implement wireless power technology in more places, such as automotive consoles, charging pads and office furniture.
TI's bq51050B is the industry's first Wireless Power Consortium (WPC) 1.1 Qi-compliant wireless power receiver with integrated direct battery charger, and enables faster, more efficient charging of smartphones, wireless keyboards and other portable electronics. The unique 20-V receiver combines rectification, voltage conditioning, communication control and Li-Ion charging capability in a single, tiny integrated circuit, eliminating the need for a separate battery charger circuit. The inductor-free, single-stage design delivers the industry's highest system efficiency and saves up to 60-percent board space compared to a multi-stage implementation.
The full story can be found here
6: IDT Expands Wireless power Portfolio with the "Most-Integrated" Power Transmitter Solutions
Integrated Device Technology, Inc. (IDT) announced what is claimed to be the industry's most integrated wireless power transmitter solutions optimized for the Wireless Power Consortium (WPC) Tx-A5, Tx-A6, and Tx-A11 configurations. The new products expand IDT's portfolio of WPC Qi-compliant magnetic induction transmitters with solutions optimized for single-coil 5 V and three-coil 12 V applications.
The full story can be found here
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White Papers
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