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MWagner_MA
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A gimmick for commercial, but may have an industrial use
MWagner_MA   8/8/2014 7:09:34 AM
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Given the trend toward higher efficiency an inductive power system like this is inherently very inefficient and contributes to more EMI around it.  Is it really that hard to just plug in a cable?  Now I can see such a use in an industrial setting where intrinsically safe areas exist.  Not making an hard electrical connection could be a safety advantage.

Jessica Lipsky
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Re: A gimmick for commercial, but may have an industrial use
Jessica Lipsky   8/8/2014 10:23:08 AM
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I agree, wireless charging (at least at this point) isn't as efficient as plugging into the wall. I got a PowerMat and had to plug in several different ways just to "wirelessly charge" my phone. It made no sense at all.

Wireless charging won't take off until it's out of sight, out of mind. It will either need to be installed everywhere (in desks, at Starbucks, etc) or like Wi-Fi in that your phone will immediately pick up a charging signal (see my story on Humavox and Energous).



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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