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DIY benchtop power
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Old 16th August 2004, 08:51 PM   #11
alecwek is offline alecwek  Denmark
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its because i will be testing things like mixing consoles where there will be loads of opamps...lights...etc....so the sum up i guess would be about 5 amps......
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Old 17th August 2004, 03:53 PM   #12
Devil_H@ck is offline Devil_H@ck  Belgium
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You can use some LM317s in parallel, but instead of using a low value resistor on the output, use a diode. Then you know for sure they won't interfere with each other, but of course then you have to take in account the voltage drop over the diode.

But it's easy, you can stack like 100 of them in parallel and have a 150A power supply (don't forget to add a lot of heatsinks to that ).
Website: http://members.lycos.nl/anthonyvh
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Old 18th August 2004, 11:33 AM   #13
alecwek is offline alecwek  Denmark
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these things are cool....one of the shematics(i have attached with this post...) which is on the data sheets...shows what it calls a constant current\voltage source but there are two variable resistors...one for setting of voltage the other for current...can i just strap on a current and voltage meter and use this as a ...(reliable) benchtop power supply.....gotts find myself a few of these to try them out....what anout negative voltage suplies...can i just hook it up backwards and use it to sink voltage and current (instead of sourcing it) then that will be my dual supply???
thanks for the many posts....
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