1. Weekly Meeting 5 October 7 th, 2013

2.  Get more info on PDR  Contact Boon Edam  Contact Profs. Soules or Looze  Investigate bike hub generators  Investigate hand crank generators  Hourly Storage of caps October 7, 20132

3.  Not required this semester per Prof Hollot  Did not create a preliminary outline after we learned this  Instead, focused efforts on Spec/Concept Summary October 7, 2013

4.  Boon Edam: contacted using their website, no response yet ◦ asked about generator, caps, gear ratios  Prof Soules: email sent this weekend about supercaps/motors October 7, 2013

5.  Found regulator schematics  Constant rotation to charge batteries  Some power lights  Very low power captured  93 Years to pay for itself @ 1Hr/Day  $300 - $400  Vague cross section images online October 7, 2013

7.  Crank turns multi gear arrangement  DC motor used  Rectified, regulated for Li battery  Powers LEDs October 7, 2013

10.  W = (½) C V 2  80 joules maximum energy put into the bars  Assuming 100% efficiency, 2.3V cap: ◦ 6800F needed per hour of 5W consumption  30x 100mW LEDS + 2W power meter = 5W October 7, 2013

11.  Flywheel idea  Fluxxlab Dynamo Door  Power meter circuit should be added  Getting a 100F cap and low forward voltage diodes this weekend ◦ Going to design a circuit soon to rectify, regulate, charge caps  Motor ordered ◦ 5W, 550mA max, 5V at 1400 RPM ◦ Est. arrival date: 10/12-10/19 October 7, 2013