paper: Talon SRX Breakout Boards

[ty.sayman]

Originally Posted by asid61

Wonderful! The overview of the design process was very helpful. I didn't know such a handy software came in the virtual KOP.
What made you go with an op-amp circuit for the 5c to 3.3v conversion over something like a mosfet? I'm unfamiliar with industrial electronics so it seems odd to me.

One thing that helped us is that I use Altium in my day job, so the learning curve for a (very) powerful tool was a little less steep for the students to climb. They took to it rather well and were quite enthusiastic to learn.

Having a buffer with a high resistance divider input reduces the load on the analog circuit being measured and provides a strong signal for the ADC input of the controller. A voltage divider could be used without any buffer circuit, but then the analog input of the motor controller would have to handle the load. This mainly is an issue with ADC acquisition time when you are measuring a circuit with high resistance that is changing at a high rate.