SNOAA90A february   2023  – may 2023 DRV5033-Q1 , LDC3114-Q1 , TMAG5170-Q1 , TMAG5170D-Q1 , TMAG5173-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Push Buttons
    1. 2.1 Mechanical Buttons
    2. 2.2 Hall-Effect Switches
    3. 2.3 Capacitive Touch Buttons
    4. 2.4 Inductive Touch Buttons
  6. 3Dials, Knobs, and Rotational Selectors
    1. 3.1 Mechanical Dials
    2. 3.2 Hall 3D Linear Dial
    3. 3.3 Encoder Using Hall
    4. 3.4 Encoder Using Inductive
    5. 3.5 Scroll Wheels
    6. 3.6 Rocker Switches
  7. 4Summary
  8. 5References
    1. 5.1 Device Support
    2. 5.2 Related Documentation
  9. 6Revision History

3 Dials, Knobs, and Rotational Selectors

Two applications where dials or knobs are used in automotive applications are volume and air control. These applications can monitor the change in rotational angle or the absolute position of the dial depending on the design preference. There are different ways to achieve these designs, but common implementations include rotary encoders and potentiometers.