tracking power supply

thermal runaway · 15th March 2010, 04:06 PM

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

Enzo · 16th March 2010, 06:15 AM

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.

thermal runaway · 16th March 2010, 11:19 AM

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.

15th March 2010, 04:06 PM	#1
thermal runaway diyAudio Member Join Date: Mar 2007 Location: West Mids , UK	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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16th March 2010, 06:15 AM	#2
Enzo diyAudio Member 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.

16th March 2010, 11:19 AM	#3
thermal runaway diyAudio Member 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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