Thin receiving coil for wireless power transfer targets mobile devices
July 13, 2012 // Jean-Pierre Joosting
TDK Corporation developed a wireless power transfer coil unit designed for smartphones and other mobile devices, that features an industry-leading thickness of only 0.57 mm.
The development reflects the company's extensive expertise in fields such as magnetic materials technology and process technology, and involved the creation of a unique, extremely thin and flexible metal magnetic sheet. As a result, the coil unit not only is ultra thin and lightweight, it also is highly resistant to shock and therefore provides excellent reliability.
In spite of its 0.57 mm profile, the coil's design minimizes the tendency towards rising resistance and achieves a power transfer efficiency that clears the requirements of the WPC "Qi" standard. At this point, output current is of the order of 0.5 to 0.6 A, but an even thinner 0.50 mm type with equal or better output current is already in development, with a view towards starting mass production in 2013.
As smartphones incorporate more and more functions, their power consumption also tends to increase, making charging of the battery a more frequent requirement. With the aim of establishing an infrastructure environment that allows easy charging anywhere at any time, the WPC and other promotional organizations are working towards the standardization of wireless power transfer.
CoolCube circuit stacking moves to FinFET process
August 03, 2015
The CEA-Leti research laboratory at Grenoble France, has reported that its CoolCube 3D interconnect technology is suitable ...
Is NextInput next winner in Apple products?
Fraunhofer rolls security platform for cars
The Filter Wizard: When off the shelf won't do, Part 1
Butterflies help boost solar panel power by 50 per cent
Facebook unveils solar-powered Internet-beaming drone
August 03, 2015
Social networking giant Facebook (Cambridge, MA) has unveiled a full-scale version of its solar-powered drone designed to ...
Indian fab project hires former GloFo exec
OmniVision shareholders approve Seagull takeover
Ancient RF teardown: crude but effective
- Dual Phase Buck Controller Drives High Density 1.2V/60A Supply with Submilliohm DCR Sensing
- Test environment for the positioning elements of wearable devices
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
- Top 5 Challenges for testing Today's Consumer Electronics
InterviewGlobalfoundries' CEO on why FD-SOI and why now
With its latest news Globalfoundries Inc. has not only confirmed itself as a supporter of the fully-depleted silicon-on-insulator (FD-SOI) approach to IC manufacturing but that it also thinks sufficiently ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Novelda is giving away two full XeThru Inspiration kits worth 1499 US Dollars each, for EETimes Europe's readers to experiment first hand with its XeThru technology.Based on the use of radio waves, rather than infrared, ultrasound or light, the company's X2M1000 Inspiration modules can detect presence just from the chest movement while breathing, and measure both the rate and... MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.