Recent content by pelle242

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    Field Oriented Control using dsPic33

    What type of probes do you guys use when scoping controller waveforms? Is it safe to use the ones that typically comes with the scope for ~100V ?
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    Bio-mass gasifier

    As dauntless pointed out that picture is of an big industrial setup. The point I was trying to make is that with a screw adding chipped fuel and an ash removal at the bottom as in the picture I dont see why continuous use would be impossible. Again the GEK is pretty much designed to do just...
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    Bio-mass gasifier

    This one looks like it could handle continious use to me: Yes the fuel must be homogenious and in small chunks or chips but is it unreasonable that a woodchipper is part of the setup?
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    Bio-mass gasifier

    Search for GEK gasifier. The have plans and kits. Also they use the woodgas to driver a genset for electrisity.
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    Field Oriented Control development boards

    I dont know how familiar you are with embedded sw development but pretty much all mcu/dsp (except for rellay small ones) have a high speed serial interface called JTAG. Initial it was intended for board level testing but has evolved into also beeing used for sw debugging. It allows a developer...
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    Field Oriented Control development boards

    The way the TI eval kits usually work is that it comes with a limited version of their eclips based Code Composer Studio IDE. The limitation is typicaly that it only connects to the USB JTAG interface that is on the evm. So if you just want to play around with the evm you are good. However if...
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    Field Oriented Control development boards

    Its all about the ecosystem, the tools, sample code, libs, reference projects, forums and communities. And without a contest the strongest embedded ecosystem out there is Arduino. Period. Just days ago they released the ARM based Due, it has a AT91SAM3X8E with everything you need for FOC...
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    Most cost effective, timely method of matching 350 M1 cells.

    You can just charge them and match them after their resting voltage. Is supposed to be good enough according to several posts on ES.
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    New user looking for feedback

    My fairly modest setup does 53km/h on flat ground no pedling, clocked with both bike computer and GPS. It's a cellman mxus DD hub (9C clone, not sure what wind) in a 26" wheel, 12FET infineon controller and a 18S4P A123 M1 pack (not from cellman). The wattsup meter says 48 amps max . With 18S...
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    Making a bulk charger.

    just note that bms tacks on heafty shipping $100+....
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    USB Charging Port

    "most" 120 to 240 volt AC switched power supplies will actually work with DC and lower voltages. So simply take a spare USB charger and hook it up to your battery and see what happens, chances are it will work just fine. Just to be safe check the output with a volt meter before you plug in your...
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    Consortium to Buy Saab Automobile, nytimes

    Its not 100% clear but i dont think they got the name. Saab was originaly part of a larger company doing heavy trucks and aero. When the cars wad sold to gm the name was licensed to them and is not part of the saab holdings.
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    Consortium to Buy Saab Automobile, nytimes

    Swedish media is quite skeptic about this new owner, very few real answers on what they actually bring and if they really have the financial means to pull this trough. The short story is that they will build an all electric version of the Saab 9-3. There exists a prototype car with a 135Kw...
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    29mm to 35mm to 50mm -> My evolution to the Cromotor

    What are you using to cut your own spokes? Hozan?
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    Kit for this Kiddy carrier reverse trike

    Maybe a friction drive?
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