{"id":1225,"date":"2024-11-18T17:02:47","date_gmt":"2024-11-18T20:02:47","guid":{"rendered":"https:\/\/micheladrianomedeiros.com.br\/blog\/?p=1225"},"modified":"2024-11-18T17:02:47","modified_gmt":"2024-11-18T20:02:47","slug":"fundamentos_da_eletronica","status":"publish","type":"post","link":"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/","title":{"rendered":"Fundamentos da Eletr\u00f4nica"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/micheladrianomedeiros.com.br\/blog\/wp-content\/uploads\/2024\/11\/DALL\u00b7E-2024-11-18-16.42.00-An-educational-illustration-showcasing-the-fundamentals-of-electronics.-The-image-features-a-labeled-diagram-including-key-components-like-resistors-.jpg\" alt=\"Fundamentos da Eletr\u00f4nica\" class=\"wp-image-1226\" srcset=\"https:\/\/micheladrianomedeiros.com.br\/blog\/wp-content\/uploads\/2024\/11\/DALL\u00b7E-2024-11-18-16.42.00-An-educational-illustration-showcasing-the-fundamentals-of-electronics.-The-image-features-a-labeled-diagram-including-key-components-like-resistors-.jpg 1024w, https:\/\/micheladrianomedeiros.com.br\/blog\/wp-content\/uploads\/2024\/11\/DALL\u00b7E-2024-11-18-16.42.00-An-educational-illustration-showcasing-the-fundamentals-of-electronics.-The-image-features-a-labeled-diagram-including-key-components-like-resistors--300x300.jpg 300w, https:\/\/micheladrianomedeiros.com.br\/blog\/wp-content\/uploads\/2024\/11\/DALL\u00b7E-2024-11-18-16.42.00-An-educational-illustration-showcasing-the-fundamentals-of-electronics.-The-image-features-a-labeled-diagram-including-key-components-like-resistors--150x150.jpg 150w, https:\/\/micheladrianomedeiros.com.br\/blog\/wp-content\/uploads\/2024\/11\/DALL\u00b7E-2024-11-18-16.42.00-An-educational-illustration-showcasing-the-fundamentals-of-electronics.-The-image-features-a-labeled-diagram-including-key-components-like-resistors--768x768.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#Licao_1_Fundamentos_da_Eletronica\" >Li\u00e7\u00e3o 1: Fundamentos da Eletr\u00f4nica<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#1_O_que_e_Eletronica\" >1. O que \u00e9 Eletr\u00f4nica?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#2_Grandezas_Eletricas_Fundamentais\" >2. Grandezas El\u00e9tricas Fundamentais<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#3_Lei_de_Ohm\" >3. Lei de Ohm<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#4_Componentes_Basicos\" >4. Componentes B\u00e1sicos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#5_Circuito_Eletrico\" >5. Circuito El\u00e9trico<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#6_Simbologia\" >6. Simbologia<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#Tarefa_Pratica\" >Tarefa Pr\u00e1tica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/fundamentos_da_eletronica\/#Links\" >Links<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Licao_1_Fundamentos_da_Eletronica\"><\/span><strong>Li\u00e7\u00e3o 1: Fundamentos da Eletr\u00f4nica<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_O_que_e_Eletronica\"><\/span><strong>1. O que \u00e9 Eletr\u00f4nica?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Defini\u00e7\u00e3o<\/strong>: Eletr\u00f4nica \u00e9 a ci\u00eancia que estuda o controle de el\u00e9trons e outros portadores de carga el\u00e9trica. Ela est\u00e1 por tr\u00e1s de praticamente todos os dispositivos modernos, como smartphones, computadores, TVs, etc.<\/li>\n\n\n\n<li><strong>\u00c1reas principais<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Circuitos anal\u00f3gicos: trabalham com sinais cont\u00ednuos (ex.: amplificadores).<\/li>\n\n\n\n<li>Circuitos digitais: trabalham com sinais discretos (ex.: computadores).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Grandezas_Eletricas_Fundamentais\"><\/span><strong>2. Grandezas El\u00e9tricas Fundamentais<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Essas s\u00e3o as bases para qualquer an\u00e1lise de circuito:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Tens\u00e3o (Voltagem)<\/strong> (V):\n<ul class=\"wp-block-list\">\n<li>\u00c9 a &#8220;press\u00e3o&#8221; que faz os el\u00e9trons se moverem em um circuito. \u00c9 medida em <strong>volts (V)<\/strong>.<\/li>\n\n\n\n<li>Ferramenta para medir: Mult\u00edmetro.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Corrente<\/strong> (I):\n<ul class=\"wp-block-list\">\n<li>\u00c9 o fluxo de el\u00e9trons em um condutor. \u00c9 medida em <strong>amperes (A)<\/strong>.<\/li>\n\n\n\n<li>Existem dois tipos principais:\n<ul class=\"wp-block-list\">\n<li>Corrente cont\u00ednua (DC): flui em uma dire\u00e7\u00e3o (ex.: pilhas).<\/li>\n\n\n\n<li>Corrente alternada (AC): alterna sua dire\u00e7\u00e3o (ex.: energia dom\u00e9stica).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Resist\u00eancia<\/strong> (R):\n<ul class=\"wp-block-list\">\n<li>\u00c9 a oposi\u00e7\u00e3o ao fluxo de corrente. \u00c9 medida em <strong>ohms (\u03a9)<\/strong>.<\/li>\n\n\n\n<li>Resistores s\u00e3o usados para controlar o fluxo de corrente em circuitos.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Pot\u00eancia<\/strong> (P):\n<ul class=\"wp-block-list\">\n<li>\u00c9 a energia consumida ou fornecida por um circuito. Calculada como:<br><strong>P = V \u00d7 I<\/strong><br>Unidade: watts (W).<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Lei_de_Ohm\"><\/span><strong>3. Lei de Ohm<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>A lei de Ohm \u00e9 a base da eletr\u00f4nica: V=I\u00d7RV = I \u00d7 RV=I\u00d7R<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Onde:\n<ul class=\"wp-block-list\">\n<li>VVV: Tens\u00e3o (volts)<\/li>\n\n\n\n<li>III: Corrente (amperes)<\/li>\n\n\n\n<li>RRR: Resist\u00eancia (ohms)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Componentes_Basicos\"><\/span><strong>4. Componentes B\u00e1sicos<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Aqui est\u00e3o os componentes fundamentais de qualquer circuito:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Resistores<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Limitam a corrente.<\/li>\n\n\n\n<li>Identificados por faixas coloridas que indicam seu valor.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Capacitores<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Armazenam energia temporariamente.<\/li>\n\n\n\n<li>Usados em filtros, fontes de alimenta\u00e7\u00e3o e circuitos oscilat\u00f3rios.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Indutores<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Armazenam energia em um campo magn\u00e9tico.<\/li>\n\n\n\n<li>Usados em circuitos de RF, transformadores e motores.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Diodos<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Permitem o fluxo de corrente em uma \u00fanica dire\u00e7\u00e3o.<\/li>\n\n\n\n<li>Tipos especiais: LED (emite luz), diodo zener (regula tens\u00e3o).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Transistores<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Atuam como amplificadores ou interruptores.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Circuito_Eletrico\"><\/span><strong>5. Circuito El\u00e9trico<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Circuito aberto<\/strong>: N\u00e3o h\u00e1 fluxo de corrente (interruptor desligado).<\/li>\n\n\n\n<li><strong>Circuito fechado<\/strong>: A corrente flui (interruptor ligado).<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Simbologia\"><\/span><strong>6. Simbologia<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Conhecer os s\u00edmbolos dos componentes em diagramas \u00e9 crucial:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Resistor: \u2653<\/li>\n\n\n\n<li>Capacitor: |\u2016|<\/li>\n\n\n\n<li>Diodo: \u25b6|-<\/li>\n\n\n\n<li>Fonte de tens\u00e3o: +|-<\/li>\n\n\n\n<li>Terra (GND): \u23da<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tarefa_Pratica\"><\/span><strong>Tarefa Pr\u00e1tica<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Simular um Circuito Simples:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Monte um circuito b\u00e1sico com:\n<ul class=\"wp-block-list\">\n<li>Uma fonte de tens\u00e3o (ex.: pilha de 9V).<\/li>\n\n\n\n<li>Um resistor de 1k\u03a9.<\/li>\n\n\n\n<li>Um LED.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Observe como o LED se acende ao fechar o circuito.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Pesquise Ferramentas B\u00e1sicas:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mult\u00edmetro: mede tens\u00e3o, corrente e resist\u00eancia.<\/li>\n\n\n\n<li>Protoboard: facilita a montagem de circuitos tempor\u00e1rios.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Links\"><\/span>Links<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><a href=\"https:\/\/go.hotmart.com\/N96651874R\" target=\"_blank\" rel=\"noreferrer noopener\">Eletr\u00f4nica B\u00e1sica e Avan\u00e7ada: Domine a Teoria e Pr\u00e1tica<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/micheladrianomedeiros.com.br\/blog\/wordpress-para-todos-3\/\" target=\"_blank\" rel=\"noreferrer noopener\">WordPress para Todos #3<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Li\u00e7\u00e3o 1: Fundamentos da Eletr\u00f4nica 1. O que \u00e9 Eletr\u00f4nica? 2. Grandezas El\u00e9tricas Fundamentais Essas s\u00e3o as bases para qualquer an\u00e1lise de circuito: 3. Lei de Ohm A lei de Ohm \u00e9 a base da eletr\u00f4nica: V=I\u00d7RV = I \u00d7 RV=I\u00d7R 4. Componentes B\u00e1sicos Aqui est\u00e3o os componentes fundamentais de qualquer circuito: 5. Circuito El\u00e9trico [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1226,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[333],"tags":[345,339,348,349,341,351,344,338,343,337,342,350,335,336,334,346,340,347],"class_list":["post-1225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-eletronica","tag-aprendizagem-em-eletronica","tag-capacitores","tag-circuito-aberto","tag-circuito-fechado","tag-circuitos-eletricos","tag-como-aprender-eletronica","tag-componentes-eletronicos","tag-corrente-eletrica","tag-diodos","tag-eletronica","tag-fundamentos-da-eletronica","tag-iniciante-em-eletronica","tag-lei-de-ohm","tag-resistencia-eletrica","tag-resistores","tag-simbologia-eletronica","tag-tensao-eletrica","tag-transistores"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.5 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Fundamentos da Eletr\u00f4nica - Viciados em Aprender<\/title>\n<meta name=\"description\" content=\"Aprenda os fundamentos da eletr\u00f4nica: tens\u00e3o, corrente, resist\u00eancia, Lei de Ohm e componentes b\u00e1sicos. 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