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Old 15th March 2010, 05:06 PM   #1
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thermal runaway's Avatar
Join Date: Mar 2007
Location: West Mids , UK
Default tracking power supply

I have been given a Coutant LQT 200 lab power supply.
It's a variable DC unit , dual output ,tracking , master and slave, 0-15 V at 0-2 amp per side.
Could someone explain what the tracking function would be used for please ?
I can see how it works but not what it would be used for , apart from maybe to supply + and - rails on op amps etc
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Old 16th March 2010, 07:15 AM   #2
Enzo is offline Enzo  United States
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Join Date: Sep 2004
Location: Lansing, Michigan
Well, that is exactly what it would be used for.

Let's say we have a circuit set up running on +10 and -10v. And we want to see how it might perform on +15 and -15v. A tracking supply makes it as simple as turning one knob. Independent supplies means we would have to set one then match the other to it.
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Old 16th March 2010, 12:19 PM   #3
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Join Date: Mar 2007
Location: West Mids , UK
Thanks for the clarification. It did not immediately occur to me as I do not have much to do with circuit building using op amps etc.
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