Recent content by meitl

I guess I need to be more specific, the frequency I am reading comes from a MC that is outputting 91V pulses, from what I read that national semiconductor model will not like having an input voltage that high. Correct me if I am wrong.

I found this circuit diagram. http://freecircuitdiagram.com/2008/08/19/frequency-to-voltage-converter-change-your-voltmeter-to-frequency-meter/" Will it work? And if so how would it be implemented? I need to make a measurement between two of the phase terminals of my motor controller.

I found an old circuit diagram online but have never been able to find it again. Here is what I am trying to do: The three-phase DC motor I am working with is a 4-pole motor. Therefore there is a direct relationship between the frequency between the motors phase-leads, and the current RPM of...