Products > Test Equipment
Keithley SMU as electronic load?
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aronake:

--- Quote from: aronake on June 06, 2024, 04:04:58 pm ---
--- Quote from: aronake on June 06, 2024, 03:28:09 pm ---I want to use a SMU to test some LT3045 based voltage regulators to see how they behave the more current they draw.

The problem i have is as i increase current sink, the LT3045 shuts off at certain current. If I then continue to increase the current draw, the SMU will start applying a negative voltage on the output of the LT3045 to achieve the set current sink. I dont want this to happen, but the SMU behave like an electronic load i.e. lower resistance with higher current until when the LT3045 stop delivering current and the SMU turns into a short. Can this be done?

--- End quote ---

I figured this out myself.  I though current source mode was supposed to be used, but ofcourse not! Set the SMU to source 0 volt, and then use current limits/compliance to allow it to drain like an electronic load.

--- End quote ---

And reading this again now when I have tried things, this is what is being confirmed in 4th post in this thread.
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