Very good video! Years ago, I designed a circuit using one single INA122UA instrumentation op amp. I pushed the gain of this amp almost to its limit. As a result, the gain setting resistor became VERY temperature sensitive. I found that using a few 1206 components did not affect my board layout that much. I ended up using a RQ73C2B147RBTD from DigiKey, .1 percent tolerance, 10 PPM. (parts per million) Using precision resistors can end up saving lots of calibration time and make the overall circuit more stable. Thanks for sharing your engineering approach to designers coming up to speed in this field. For those of you interested, I found this field highly rewarding since starting (1986) to use micros + electronics = embedded control.
Thank you! There's definitely a place for high precision components, but I was actually slightly surprised that my circuit functioned almost totally normally when all my 10k resistors were actually NTC thermistors. It actually took a little while to figure out the source of the problem!
Very good video!
Years ago, I designed a circuit using one single INA122UA instrumentation op amp. I pushed the gain of this amp almost to its limit.
As a result, the gain setting resistor became VERY temperature sensitive. I found that using a few 1206 components did not affect my board layout that much. I ended up using a RQ73C2B147RBTD from DigiKey, .1 percent tolerance, 10 PPM. (parts per million) Using precision resistors can end up saving lots of calibration time and make the overall circuit more stable.
Thanks for sharing your engineering approach to designers coming up to speed in this field.
For those of you interested, I found this field highly rewarding since starting (1986) to use micros + electronics = embedded control.
Thank you! There's definitely a place for high precision components, but I was actually slightly surprised that my circuit functioned almost totally normally when all my 10k resistors were actually NTC thermistors. It actually took a little while to figure out the source of the problem!
@@engineerbo Indeed! Comment was actually intended for novice designers coming up to speed.
Great Video Again! I hope this means we are going to see up to 60V Motor testing soon.
Yep, laying the groundwork for the TMC5160!
@@engineerbo Awesome!