{"title":"Use of the 555 integrated circuit for the construction of a PWM module","authors":"","doi":"10.14295/bjs.v2i8.348","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":9244,"journal":{"name":"Brazilian Journal of Poultry Science","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Poultry Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.14295/bjs.v2i8.348","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
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.
期刊介绍:
A Revista Brasileira de Ciência Avícola surgiu em 1999 a partir da necessidade que a comunidade científica possuía de um periódico para veiculação e publicação de seus trabalhos, com a publicação de três números anuais.
A Revista conta hoje com um corpo editorial altamente qualificado e com artigos científicos desenvolvidos pelos maiores especialistas da área, o que a cada dia atrai mais leitores em busca de inovação e respaldo técnico.
Devido à credibilidade que conquistou pelos esforços de sus autores, relatores e revisores, a Revista ganhou caráter de coleção, sendo consultada como fonte segura de estudo desenvolvidos na Avicultura.
A partir de 2003 – volume 5 -, a Revista passou a chamar-se Brazilian Journal of Poultry Science, e todos os trabalhos passaram a ser publicados em inglês. No mesmo ano subiu para quatro o número de revistas por volume, ampliando-se assim os trabalhos publicados anualmente.