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SeaMoors:
You are better off starting afresh with an internal Relay/VmosFET board for your PC or a USB breakout box. Definitely won't cost more than 150 dollars.
Sorry, yet to work out how to post quotes.
DXNewxastle: NS circuits are showing 0V as grounded, hence the capacitors are all connected with respect to 0V or ground. I have used all capacitors in the diagram. Ripple is not the problem. Your reference to Capacitor between ground pin and 0V does...
Again, thanks to DXNewcastle, FvM and all for being intrigued like myself, about this one off tricky problem.
Yes I applied coolant spray. When I had smaller heat sink the cooling prevented thermal shutdown. When I switched to the huge heat sink spraying had no effect on load regulation, ripple...
Thanks for trying to solve this tricky issue.
I have used star topology for grounding. Anyhow I have used thick (30A) wires so wire resistance is not the problem. Also I am measuring voltages at the output pin of the device. There are two more 10mF capacitors at the input and output pins of the...
I am surprised at these results as well hence looking for answers here.
Have used a huge transformer, thick wires, allowed at least 6V drop minimum across the regulator device at full load and excellent quality capacitors.
These devices have thermal shutdown if good heat sinks are not used...
The regulation can be as bad as 50%. Just above 2A it is 20%.
I have found that LM350 in the same circuit gives better regulation though still no where near NS specification. Can be a thermal issue but I have used a massive heatsink - also a fan - nothing more can be done. I wonder whether...
I have designed many working circuits by using parallel regulator devices.
I would like to know why single high current regulators like LM1084 do not meet their specs of 5A. Poor regulation after 2A. I am using a large Transformer-Bridge Rectifier-Smoothing capacitor combination and NS...
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