Teaching modules and programming of
a microcontroller through experiments is a very efficient method.
Microcontroller programming usually also requires practical electronics
knowledge. Variable analog voltage outputs are usually not available in common
microcontrollers, but this type of signal is required for many applications. This
experiment is proposed to teach digital to analog voltage conversion (DAC)
using pulse width modulation (PWM) by a microcontroller. In the experimental
procedure students should generate the PWM signal, develop digital to analog
voltage regulator circuit, design a ripple filter, review the experimental
results and answer the questions. Students are expected to observe and
interpret the code writing, the digital to analog converter and ripple filter
effect. This paper describes, the experimental procedure, the materials and
methods used in the experiment and the main theoretical concepts, and determine
the evaluation methods for the benefits of the experiment. This experiment will
be applied to biomedical engineering undergraduates. Their performances will be
evaluated through surrey questions and their grades.
Digital to analog conversion pulse width modulation microcontroller ripple filter laboratory experiment
Journal Section | Articles |
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Authors | |
Publication Date | September 1, 2017 |
Published in Issue | Year 2017 Volume: 6 |