Use of the 555 integrated circuit for the construction of a PWM module
DOI:
https://doi.org/10.14295/bjs.v2i8.348Keywords:
PWM generator, 555 timer integrated circuit, oscillatorAbstract
The use of technology has become increasingly viable in classrooms, especially in physics classes. Explaining phenomena related to circuits becomes simpler when we can provide practical examples to students. The present article aims to describe the construction of a low-cost PWM module, which was used in the classroom to demonstrate the basic principles of digital electronics. The module was built with the 555 integrated circuit and a few other components. The assembly was made on a breadboard. The results from the operation of the board were analyzed with a digital oscilloscope and corresponded to what was expected in theory, the compatibility of the pulse width could be successfully verified, as well as the effect of simulating the analog output signal. Alternatively, the prototype was also used with an electric motor to visualize the influence of pulse width on the motor's rotation.
References
Admiral, T. D. (2021a). Using the 555 integrated circuit in bistable mode as a vibration sensor. Brazilian Journal of Development, 7(9), 89266-89275. 10.34117/bjdv7n9-202. DOI: https://doi.org/10.34117/bjdv7n9-202
Admiral, T. D. (2021b). Automated water capture system with Ne555 in monostable mode. Brazilian Journal of Development, 103814-103823. 10.34117/bjdv7n11-144. DOI: https://doi.org/10.34117/bjdv7n11-144
Amusa, J. O. (2021). Practical electronics as a tool for enhancing physics students’ interest in learning the concept of electricity in Lagos, Nigeria. International Journal of Educational Research Review, 7(2), 88-98. https://doi.org/10.24331/ijere.1029589 DOI: https://doi.org/10.24331/ijere.1029589
Employing Only Single Active Element. (2010). Proceedings of the 1st International Conference on Technical Education (ICTE2009) January 21-22, 2010, Bangkok, Thailand.
Silapan, P., & Siripruchyanun, M. (2009). A simple current-mode PWM signal generator employing only single active element. In: Proceedings of the 1st International Conference on Technical Education (ICTE 2009), January 21-22, 2010, Bangkok, Thailand. https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=f4bf2fb76aaa91c91f2531f1f65970d222d41776
Van der Veer, R., & Zavershneva, E. (2011). To Moscow with love: Partial reconstruction of Vygotsky's Trip to London. Integrative Psychological and Behavioral Science, 45(4), 458-474. https://doi.org/10.1007/s12124-011-9173-8 DOI: https://doi.org/10.1007/s12124-011-9173-8
Zúbia, J, G., & Alves, G. R. (2011). Using remote labs in education: Two little ducks in remote experimentation. Deusto Digital. University of Deusto, ISBN: 978-84-9830-398-8.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Tiago Destéffani Admiral
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
