A.K. Stamping Company, Inc.announced the new A2311 transmit coil designed to work within the A11 specification of the WPC (Qi) standard. Based upon a true bifilar Tesla coil design, these stamped coils are significantly thinner (0.3mm for coil alone, 2mm for coil mounted to optional ferrite shield) than comparable Litz wire coils, giving designers the freedom to significantly reduce the overall thickness of their charging devices. Made from stamped aluminum, the A2311 coils are more resistant to damage from vibration and thermal shock than charging coils made by competing technologies, surpassing the automotive requirements for stress testing of passive components. In addition, AKS’ patent-pending coil manufacturing technology dramatically reduces coil costs compared to other wireless charging coils on the market today.
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“We are excited to have developed an innovative solution for the growing wireless charging market,” said Carlo Montesa, Product Manager of Wireless Charging at AK Stamping. “AKS is able to offer a dramatic reduction in coil thickness and cost. It’s truly a groundbreaking technology that gives the wireless charging industry the manufacturing scalability and consistency it needs. Compared to competing technologies, our technology provides an extremely robust solution that is ideal for both inductive and resonant applications.”
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The A2311 joins our growing portfolio of patent-pending wireless charging coils, which also includes the A2306 A6 style WPC transmit coil. Available in copper or aluminum, the A2306 shares the substantial thickness, durability and cost benefits of the A2311 coil. For wireless charging of smartphones, AKS also offers Qi receiver coils with outstanding performance at a thickness of just 0.14mm.
source: http://www.powerpulse.net/story.php?storyID=31921
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