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The wireless power challenge
20 June 2012
SAN JOSE, Calif.–Wireless charging (or inductive charging) will be a significant market in the coming years, despite the inefficiencies found with contemporary charging systems.
The technology will get better over time, efficiency will improve and the bill-of-materials will shrink as integration increases.
There are any number of vendors in the space, so why would an established company like IDT venture into that cage match?
Eric Itakura explained to us earlier this year that you'd do it if you thought you had a compelling and different solution.
Wireless TX/RX
That, in IDT's case, would be the IDTP9030 and IDTP9020. IDT claims the 9030 is the first single-chip wireless power transmitter, while the 9020 is the first multi-mode-capable single-chip power receiver IC.
They're throwing around some big numbers, such as 80% reduction in board size; 67% reduction in component count; 50% cost savings. Here's a link to more information at IDT.
It's clearly a compelling tale, especially because it's a big announcement for a relatively young analog and mixed-signal group at IDT–an evolution that will bear watching because the established players don't roll over easily.
Itakura, who is marketing director for wireless power products, walked us through the technology and talked about the market landscape and its challenges as well as the future of wireless charging on a larger scale (hint: it has to do with electric vehicles).
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William Ketel June 28, 2012 at 7:28 pm
How can an indirect method of charging ever come close to the efficiency level of a direct connection? And for the really nasty question, why don’t they tell us the actual efficiency in terms of power out divided by power in, like most normal folks define efficiency? The fairly obvious answer is that a lot of that radiated power does not get to the intended collection mechanism, and even if it did, it would not be as efficient because of having one more stage of assorted losses.