In an electrical circuit, the input voltage supplied from a voltage source may not fit the requirements of a circuit component. The use of voltage dividers provides us with a method to work around this issue and output a desired fraction of the input voltage. Watch the video below to learn how voltage dividers work and how they may be used in biomedical instrumentation applications.
Self-Assessment Questions:
Click here to test your understanding of Voltage Dividers.
Discussion Questions:
- The video mainly focused on a direct current (DC) circuit. Consider what purpose a voltage divider circuit containing alternating circuit (AC) components (capacitor or inductor) would have in an AC circuit.
- The video described many characteristics of a voltage divider circuit. What are some advantages and disadvantages of each of them?
- A potentiometer is an adjustable resistor that allows the user to manually adjust the resistance ratio of the two halves. Consider its use in a voltage divider circuit.
- After reviewing Yoshiwaki et al.’s article on voltage divider use in ECG signals, consider how they use voltage dividers in the development of their new technology.
Continue Reading:
- M. Yoshiwaki, A. Murai, Y. Sakaue and M. Makikawa, “A new approach to estimate ECG signal source using voltage divider technology,” 2014 Proceedings of the SICE Annual Conference (SICE), 2014, pp. 1460-1465. Read the article here.
- Published by the Institute of Electrical and Electronics Engineers, researchers at Ritsumeikan University developed a new ECG signal source estimation method that uses voltage divider technology.
- Voltage Dividers. Electronics Tutorials. Read the article here.
- A brief overview of voltage dividers (resistive, capacitive, and inductive) and their associated calculations.
About the Creator:
This video was created by a student in the Rice Bioengineering Class of 2023 (used with permission).
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