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Re: Charging times: comparing like to like
DrQuine   11/5/2013 9:13:22 PM
If my numbers are right, it would take nearly 5 times longer to charge wirelessly - I'm happy to manage a plug connector with that kind of time savings. The exceptions would be for a highway with embedded charging circuits that charged my car as I drove (plugs and wires won't work) or a parking lot that would charge my car without having to find a cord and charging station.

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Re: Si Supercap and RTC chips
krisi   11/4/2013 12:19:17 PM
Getting this to work in silicon is interesting...any time you can do something in silicon it eventually wins as the material and its processing is very well understood and perfected...see silcon solar cells, despite the fact that other solar cell technologies are available silicon is a king here capturing 90+% of the market...the same with silicon chips of course, despite GaAs and InP threats it commands 90+% market share...will silicon super cap be the next silicon specialty? Kris

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Si Supercap and RTC chips
_hm   11/2/2013 3:22:13 PM
Si supercap is a very good noise. First they should try it out with RTC chip and make RTC chips not requiring external battery.

After that many microcontrollers can can also include this Si Supercap for RTC functionality.


Derek Simpson
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Re: Charging times: comparing like to like
Derek Simpson   11/2/2013 12:14:52 PM
Wireless charging is cool and more convenient than the old ones and i guess this will surely click on most people especially the busy ones. - Aldo Disorbo

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Charging times: comparing like to like
DrQuine   11/1/2013 9:59:23 PM
We've all read about the hours required to charge electric vehicles (EV). For example a Chevy Volt takes 8 hours at 120 volts or 4 hours at 240 volts.  The inductive charging of the Volvo sounds really impressive in only 3 hours.  HOWEVER the Volvo is doing much less charging. While the Chevy Volt is charging at 1,440 watts, the Volvo is charging at 300 watts. The inductive approach (not surprisingly) is moving much less power into the battery. The statistics only sound so good because it is a smaller battery.

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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