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Thanks waltr, that really helps. One thing though, if you would notice the 270Ohm resistor in the opto isolator that ties Motor VCC to Vo which is an open collector output. I believe the pulls the Vo high. Should I tie that to Motor GND instead when I use number 2 in your response?
And i think i know how my opto isolators work anyway
Okay, by the way, on the Diagram, to what does the B+ correspond to? is that the Motor Battery + ?
The only other comment I'd make is that the diagram says the capacitors should be at least 16v - it should really be 'at least 2 x the motor voltage'
The L1. I don't quite get the Powdered Iron Ring description on top of it. How or where do i get my hands on one?
Why do you say the Opto Isolators might not even work?
Hi,Quote from: Webbot on November 04, 2009, 02:12:47 PMThe only other comment I'd make is that the diagram says the capacitors should be at least 16v - it should really be 'at least 2 x the motor voltage'Motors are 6V, so I think you'll agree to what I wrote, considering that caps usually come in voltages of 6V, 10V, 16V, 25V etc. (approx. 1.6 x the previous one in the row).
Because I'm fairly sure that your noise problem is transferred on the power line, not the signal lines.