What are the functions of these resistors? More specifically, are these values correct for a max 20v load at 20amps? If I'm reading the schematic correctly, this is on the "low current" side, so it shouldn't matter (too much) what wattage the resistors are rated for, correct?
When I redo the MOSFET board, I'm going to be building it from scratch (instead of using Sparkfun's). I'm trying to make sure I've got a better understanding of it.
StaticDet5 wrote:Right now, I'm going to have some wine, and look at this circuit diagram from folks who have "blazed this trail"...
StaticDet5 wrote:Some of the MOSFET conversions advertise an "active braking" component. Is that the second MOSFET with the opposite appearing gate (I'm guessing a P-Channel MOSFET)?
StaticDet5 wrote:It probably is a braking circuit. But how do they know when to brake? I don't see anything in the schematic that could tell you what's going on in the gearbox. UNLESS! Unless PB2/ADC1 (I'm betting ADC1 is Analog to Digital 1) measures.... something. It looks to me like it would only measure voltage. Is voltage going to change through the firing cycle?
StaticDet5 wrote:For what it's worth, I've pulled their code and emailed the designer. I don't know if he'd want to give hints on this.
StaticDet5 wrote:It's really hard for the sailor in me not to start swearing at moments like this. I'm so close... I grabbed some terminal blocks from Radio Shack today. I'm going to build a big, blocky prototype system on a piece of 1x6. It will keep things organized, and give me a little more fun if everything catches on fire...
StaticDet5 wrote:Real quick, Mee_n_Mac, in your diagram, how important is D1? I don't have a diode from source to drain.
Looking at the IRF3205 schematic, it looks like one is included, but I want to be sure I'm not missing something.
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