H- Bridge
Hi All,
Many thanks for your replies so far. Many of your thought have been my thoughts, heavy duty wire connections, ground loops, filtering etc:
I will attempt to post a schematic in pdf format but I have not done this before and hope it works OK.
The schematic is the second circuit built that I tried. It seperates the logic side via opto- isolators and has isolated 5v & 30v supplies.
The original circuit had a single power supply giving +30v and +5v supply with common ground. It was identical to the one posted except the opto-isolators were not used and neither was the choke at the 5v input to the logic.
Hope this helps
Paul
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