Matthew Venn » bike charge controller http://www.mattvenn.net music, improvisation, technology, design Sun, 29 Jan 2012 16:20:18 +0000 http://wordpress.org/?v=2.8 en hourly 1 bike charge controller – Mexico version! http://www.mattvenn.net/2009/04/27/bike-charge-controller-mexico-version/ http://www.mattvenn.net/2009/04/27/bike-charge-controller-mexico-version/#comments Mon, 27 Apr 2009 12:56:59 +0000 matthew venn http://www.mattvenn.net/2009/04/27/bike-charge-controller-mexico-version/ I met Gustavo at the HCF bike day last week. He wanted a similar system to the bike cinema I’m making for HCF.

I made a modified version of the charge controller in a tiny box. It took about 4 hours to build and test, and then another 4 hours to modify the software.

During stress testing I found that the mosfet I used for low voltage cutout was getting too hot. I had to remove that element of the design because of the short time available.

  • The box monitors voltage and current coming in and out of the battery,
  • Protects generator with a 60A diode,
  • Shows battery high/med/low status lights,
  • Shows power generation vs power consumption,
  • Broken – Low voltage cut out battery protection.
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