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| Can anyone help me wire up this motor driver? |
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| EightBySix:
probably what the ebayer I bought it from is doing ;D http://www.ebay.co.uk/itm/251042473622?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2648 I couldnt find a distributer that didn't either want me to buy 10 or more, or have a minimum order value. |
| Mysterioii:
Mouser doesn't have minimum quantities but I dunno what it would cost to ship it to where you're at. I love mouser... I order a lot of components from them. |
| EightBySix:
Well, new chip arrived, and it worked! (I added the extra resistor to be safe). I noticed that it wasn't running at full speed though. Also each time I flipped my direction switch, it took longer and longer to accelerate until it wouldn't start at all, and I'm back to square one. At least this time I know my pin connections are ok and I need to look elsewhere for the problem. I know that back emf can be produced, but the chip is supposed to contain protective diodes. Some circuit diagrams contain supplemental ones too. I'll have to do some maths about the current draw of the motor too. Th chip should be able to handle 1A. |
| DaOld Man:
Thats a tough one. Most DC motor drivers regulate speed by pulsing the motor on and off. Could the motor be drawing more than 1 amp? i think I would put my amp meter on it at 12 volts to see how much it is drawing. Did the chip get hot? |
| DaOld Man:
Bump. Eightbysix, any luck with this? |
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