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Search took 0.05 seconds. Search: Posts Made By: Ken6881
Forum: Open ReVolt: open source DC motor controller 01-07-2012, 01:30 PM
Replies: 7,381
Views: 2,409,111
Posted By MPaulHolmes
HURRAY!!! That answers one question I had!!! I...

HURRAY!!! That answers one question I had!!! I didn't know what would happen if you suddenly turned off the 12v power while driving. I'm glad nothing horrible happened.
Forum: Open ReVolt: open source DC motor controller 01-06-2012, 08:51 AM
Replies: 7,381
Views: 2,409,111
Posted By MPaulHolmes
Well good! the PWM is working!! What's Pin 2,...

Well good! the PWM is working!! What's Pin 2, 6, 9, or 13 doing of the NAND (U5)? They should all be connected together, so I guess you could check that the resistance from one of those 4 pins to...
Forum: Open ReVolt: open source DC motor controller 01-06-2012, 01:33 AM
Replies: 7,381
Views: 2,409,111
Posted By MPaulHolmes
Try it with R12.

Try it with R12.
Forum: Open ReVolt: open source DC motor controller 01-05-2012, 08:04 PM
Replies: 7,381
Views: 2,409,111
Posted By MPaulHolmes
OK, so the mosfet driver is probably fine. The...

OK, so the mosfet driver is probably fine. The next culprit to check out is the HCPL-4504 optocoupler. Check opposite sides of R15 at zero and full throttle.
Forum: Open ReVolt: open source DC motor controller 01-05-2012, 06:52 PM
Replies: 7,381
Views: 2,409,111
Posted By MPaulHolmes
OK, then the pwm isn't making it from the...

OK, then the pwm isn't making it from the microcontroller to the output of the driver. We just need to backtrack until we find where it's not making it. It's then probably just a bad solder...
Forum: Open ReVolt: open source DC motor controller 01-05-2012, 06:31 PM
Replies: 7,381
Views: 2,409,111
Posted By MPaulHolmes
Is the yellow light flashing the whole time? ...

Is the yellow light flashing the whole time? Even when the throttle is zero?
Forum: Open ReVolt: open source DC motor controller 01-05-2012, 06:00 PM
Replies: 7,381
Views: 2,409,111
Posted By MPaulHolmes
During debugging make sure it's not hooked up to...

During debugging make sure it's not hooked up to the battery pack. First, with nothing connected to B+, B- and M- bus bars, but with a throttle and the current sensor connected, turn on the 12v...
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