0
\$\begingroup\$

I am working on a project, which is to make a PID based line follower but the constraints are:

  1. 5 IR sensors are allowed
  2. Only 9V battery
  3. No microcontroller, only discrete components

I though of input block, which takes input from IR sensor and converts it to analog signal, which is then fed into a PID controller.

For DAC I am using a R-2R ladder DAC.

Can anyone please suggest an alternative to using relays as used here.

My control signal will have 5V.

enter image description here enter image description here

Improve this question
\$\endgroup\$
15
  • \$\begingroup\$ electronics.stackexchange.com/questions/312705/dac-r-2r-design \$\endgroup\$ – BeB00 Jun 4 '20 at 7:07
  • \$\begingroup\$ Thank you.Can you suggest the Ic no as I was not able to find any for P depletion type MOSFET . \$\endgroup\$ – Newton Nadar Jun 4 '20 at 7:14
  • \$\begingroup\$ generally you wouldn't make a discrete r2r ladder, you would buy a dac. Why do you want to make one? \$\endgroup\$ – BeB00 Jun 4 '20 at 7:41
  • \$\begingroup\$ Tips: (1) Turn off the background grid before taking the screengrab. It improves legibility. (2) Crop the image to the relevant section. 75% of your screengrab is irrelevant and requires your reader to load the image separately and pan and zoom. \$\endgroup\$ – Transistor Jun 4 '20 at 7:45
  • 1
    \$\begingroup\$ @PauComaRamirez Watch out for the ones that say "modified xx mins ago Community♦" - you probably don't want to bother with them. \$\endgroup\$ – Andrew Morton Jan 28 at 22:22

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.