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Electronic Power Rheostat 2018-07-23

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crutschow

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crutschow submitted a new article:

Electronic Power Rheostat - Circuit generates an equivalent high power resistance that can be adjusted with a potentiometer.

Introduction --
Generating an adjustable resistance that can carry a higher current and dissipate more power than standard potentiometers is occasionally required for testing or other purposes.
An electronic circuit is desirable for this purpose to avoid the high cost and limited resistance range of power rheostats. Circuits that can provide a constant adjustable current load are common, but not so much for constant adjustable resistance.
Discussed here is a circuit using an...
 
Last edited:
Neither link is working yet... :confused:. Just a head's up. (Is there a vetting waiting period?)

(I know I can hit "Overview"... )
 
Link should work now.
 
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