Energy Harvesting for Mobile Computing Joe Paradiso Responsive ...
Energy Harvesting for Mobile Computing Joe Paradiso Responsive ...
Energy Harvesting for Mobile Computing Joe Paradiso Responsive ...
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4/04<br />
©<br />
MIT-ML<br />
Voltage (V)<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
2<br />
0<br />
-2<br />
-5.6<br />
Self-powered buttons<br />
16.4<br />
Strike Occurrence<br />
Tank Capacitor Voltage<br />
38.4<br />
60.4<br />
82.4<br />
104<br />
126<br />
3 Volt Regulator Output<br />
148<br />
170<br />
192<br />
214<br />
• ~0.5 mJ at 3 Volts per push<br />
• Sends 12-bit RFID 12 x throughout floor (50 ft.)<br />
• No need <strong>for</strong> battery, wire… Mark Feldmeier<br />
236<br />
Time (msec)<br />
Serial ID Code<br />
258<br />
280<br />
302<br />
324<br />
346<br />
368<br />
Spring 2001<br />
390<br />
412<br />
434<br />
JAP<br />
43
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