Subscribe to Blog via Email
© Mark Biegert and Math Encounters, 2020. Publication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Mark Biegert and Math Encounters with appropriate and specific direction to the original content.
DisclaimerAll content provided on the mathscinotes.com blog is for informational purposes only. The owner of this blog makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. The owner of mathscinotes.com will not be liable for any errors or omissions in this information nor for the availability of this information. The owner will not be liable for any losses, injuries, or damages from the display or use of this information.
Daily Archives: 12-May-2016
I recently had the need to be able to set precisely a non-standard resistance value in production. Historically, I have used potentiometers, mechanical or electronics. Potentiometers are undesirable in production because they tend to be expensive, unreliable, mechanical units require adjustment accessibility, and they can drift.
While I was researching options, I ran across an interesting approach that uses three resistors to realize any resistance from 10 Ω to 1 MΩ within 0.1 % using three resistors from a set of 70 standard resistance values plus short and open values. Continue reading