Electronics > Projects, Designs, and Technical Stuff

14.4V ground reference for ADC

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Arjunan M R:

--- Quote from: Simon on June 02, 2019, 09:09:50 am ---a crude solution could be a resistor. To stop the resistor drawing a lot of power at higher voltages you can use comparators that switch in and out different resistors.

--- End quote ---
The problem with resistors are that i will get false readings in m current measurement.If it is a constant current  source or circuit i can just subtract the current of the constant current source.

Simon:
Well you are shoehorning one thing on top of another. If this was designed properly it would not be a problem. The current sense could come after all of the regulation with the feedback being taken from the final output.

Arjunan M R:
Okay, i will not worry about the current measurement.
Is there any way to constantly sink 1mA to a opamp?

Simon:
There probably is but i can't be bothered right now.

Arjunan M R:

--- Quote from: Simon on June 02, 2019, 10:14:09 am ---There probably is but i can't be bothered right now.

--- End quote ---
I will try to make it myself.

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