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Created May 25, 2015
Last modified June 08, 2015
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Adjustable constant current sink


Adjustable constant current sink based on this circuit all credit to addy771 who actually knows how the circuit works.

I used it to tested my 1.5W 12V solar panel (June 8 at 42°N at about 2PM local time). Here is the power vs voltage plot there was a lot of variation probably due to sun intensity and temperature, but the idea is there. Here is just constant current draw vs. time to show the variation over ~5 minutes.


Very cool! Glad the circuit was helpful :)

by addy771
June 08, 2015

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