<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w0 h0" alt="" src="https://files.passeidireto.com/ad60afaf-8400-4290-abf3-9847c0e54bf7/bg1.png"><div class="c x1 y1 w1 h1"><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls4">1</div></div><div class="t m1 x2 h3 y3 ff2 fs1 fc1 sc0 ls4 ws9">E<span class="_0 blank"></span>l<span class="_0 blank"></span>e<span class="_0 blank"></span>t<span class="_0 blank"></span>r<span class="_0 blank"></span>ô<span class="_0 blank"></span>n<span class="_0 blank"></span>i<span class="_1 blank"></span>c<span class="_1 blank"></span>a<span class="_0 blank"></span> <span class="_1 blank"></span>A</div><div class="t m1 x3 h3 y4 ff3 fs1 fc1 sc0 ls4 ws9">A<span class="_1 blank"></span>u<span class="_1 blank"></span>la<span class="_1 blank"></span> <span class="_1 blank"></span>0<span class="_0 blank"></span>4<span class="_0 blank"></span>.<span class="_0 blank"></span>2 <span class="_2 blank"></span>\u2013<span class="_3 blank"> </span><span class="ff2">D<span class="_1 blank"></span>io<span class="_1 blank"></span>do<span class="_1 blank"></span>s<span class="_1 blank"></span> <span class="_1 blank"></span>e<span class="_1 blank"></span>sp<span class="_1 blank"></span>e<span class="_0 blank"></span>c<span class="_0 blank"></span>ia<span class="_2 blank"></span>is</span></div><div class="t m1 x4 h3 y5 ff2 fs1 fc1 sc0 ls4 ws9">(<span class="_0 blank"></span>P<span class="_1 blank"></span>a<span class="_0 blank"></span>r<span class="_0 blank"></span>t<span class="_1 blank"></span>e<span class="_0 blank"></span> <span class="_1 blank"></span>2<span class="_0 blank"></span>:<span class="_3 blank"> </span>D<span class="_1 blank"></span>io<span class="_1 blank"></span>do<span class="_1 blank"></span> <span class="_2 blank"></span>Ze<span class="_1 blank"></span>n<span class="_0 blank"></span>e<span class="_1 blank"></span>r<span class="_2 blank"></span>,<span class="_0 blank"></span> <span class="_2 blank"></span>R<span class="_1 blank"></span>eg<span class="_1 blank"></span>u<span class="_0 blank"></span>l<span class="_0 blank"></span>a<span class="_0 blank"></span>d<span class="_0 blank"></span>o<span class="_0 blank"></span>r<span class="_1 blank"></span>e<span class="_1 blank"></span>s<span class="_0 blank"></span>,<span class="_0 blank"></span> <span class="_2 blank"></span>A<span class="_1 blank"></span>rr<span class="_1 blank"></span>a<span class="_1 blank"></span>y<span class="_0 blank"></span>s</div><div class="t m1 x5 h3 y6 ff2 fs1 fc1 sc0 ls4 ws9">d<span class="_0 blank"></span>e<span class="_1 blank"></span> <span class="_0 blank"></span>d<span class="_0 blank"></span>i<span class="_0 blank"></span>o<span class="_0 blank"></span>d<span class="_0 blank"></span>o<span class="_0 blank"></span>s<span class="_1 blank"></span>, <span class="_2 blank"></span>T<span class="_4 blank"></span>e<span class="_1 blank"></span>st<span class="_2 blank"></span>e <span class="_2 blank"></span>d<span class="_0 blank"></span>e<span class="_0 blank"></span> <span class="_1 blank"></span>d<span class="_0 blank"></span>io<span class="_1 blank"></span>d<span class="_0 blank"></span>o<span class="_1 blank"></span>)</div><div class="t m1 x6 h4 y7 ff4 fs2 fc1 sc0 ls4 ws9">Univer<span class="_0 blank"></span>sidade <span class="_5 blank"> </span>T<span class="_2 blank"></span>ecnológica Feder<span class="_0 blank"></span>al do Paraná</div><div class="t m1 x7 h4 y8 ff4 fs2 fc1 sc0 ls4 ws9">Câmpus Pato Br<span class="_0 blank"></span>anco</div><div class="t m1 x8 h4 y9 ff4 fs2 fc1 sc0 ls4 ws9">Disciplina: Eletrônica A (EL25EL/EL25<span class="_5 blank"> </span>CP)</div><div class="t m1 x9 h4 ya ff4 fs2 fc1 sc0 ls4 ws9">Prof<span class="_0 blank"></span>essor <span class="_5 blank"> </span>Diog<span class="_0 blank"></span>o V<span class="_0 blank"></span>argas</div><div class="t m1 xa h5 yb ff5 fs3 fc2 sc0 ls4 ws9">C<span class="_0 blank"></span>o<span class="_1 blank"></span>nt<span class="_1 blank"></span>eú<span class="_1 blank"></span>d<span class="_1 blank"></span>o <span class="_2 blank"></span>p<span class="_0 blank"></span>ro<span class="_2 blank"></span>gr<span class="_1 blank"></span>am<span class="_2 blank"></span>át<span class="_1 blank"></span>i<span class="_0 blank"></span>c<span class="_1 blank"></span>o</div><div class="t m1 xb h6 yc ff1 fs4 fc3 sc0 ls4 ws0">EMENT<span class="_1 blank"></span>A CONTEÚDO</div><div class="t m1 xc h7 yd ff1 fs5 fc3 sc0 ls4 ws9">1. T<span class="_1 blank"></span>eoria de </div><div class="t m1 xc h7 ye ff1 fs5 fc3 sc0 ls4 ws1">semicondutores</div><div class="t m1 xd h8 yf ff1 fs6 fc3 sc0 ls4 ws2">1. <span class="fs7 ws9">Estrutura A<span class="_0 blank"></span>tômica; Modelo <span class="_5 blank"> </span>de Bohr; </span></div><div class="t m1 xd h8 y10 ff1 fs6 fc3 sc0 ls4 ws2">2. <span class="fs7 ws9">Materiais Semicondutores Intrínsecos e Extrínsecos <span class="_5 blank"> </span>P e N; </span></div><div class="t m1 xd h8 y11 ff1 fs6 fc3 sc0 ls4 ws2">3. <span class="fs7 ws9">Material Semicondutor Extrínseco submetido a energias externas; </span></div><div class="t m1 xd h8 y12 ff1 fs6 fc3 sc0 ls4 ws2">4. <span class="fs7 ws9">Propriedades da Junção PN; </span></div><div class="t m1 xd h8 y13 ff1 fs6 fc3 sc0 ls4 ws2">5. <span class="fs7 ws3">Equacionamento.</span></div><div class="t m1 xc h7 y14 ff1 fs5 fc3 sc0 ls4 ws9">2. Dispositivos </div><div class="t m1 xc h7 y15 ff1 fs5 fc3 sc0 ls4 ws1">Semicondutores</div><div class="t m1 xd h8 y16 ff1 fs7 fc3 sc0 ls4 ws9">1.<span class="_6 blank"> </span>Introdução aos dispositivos semicondutores;</div><div class="t m1 xd h8 y17 ff1 fs7 fc3 sc0 ls4 ws9">2.<span class="_6 blank"> </span>Principais tipos e s<span class="_5 blank"> </span>uas aplicações.</div><div class="t m1 xc h7 y18 ff1 fs5 fc3 sc0 ls4 ws9">3. Diodos </div><div class="c xb y19 w2 h9"><div class="t m1 x0 h7 y1a ff1 fs5 fc3 sc0 ls4 ws9">Semicondutores e </div></div><div class="t m1 xc h7 y1b ff1 fs5 fc3 sc0 ls4 ws9">suas Aplicações</div><div class="t m1 xd h8 y1c ff1 fs6 fc3 sc0 ls4 ws2">1. <span class="fs7 ws9">Caract<span class="_0 blank"></span>erísticas do <span class="_5 blank"> </span>diodo PN; </span></div><div class="t m1 xd h8 y1d ff1 fs6 fc3 sc0 ls4 ws2">2. <span class="fs7 ws9">Curva Car<span class="_0 blank"></span>acterística V<span class="_5 blank"> </span>xI; F<span class="_0 blank"></span>olha de<span class="_5 blank"> </span> Especificação; Características dinâmicas: </span></div><div class="t m1 xe h8 y1e ff1 fs7 fc3 sc0 ls4 ws9">capacitância de transição e tempo de recuperação reversa; </div><div class="t m1 xd h8 y1f ff1 fs6 fc3 sc0 ls4 ws2">3. <span class="fs7 ws9">Modelos Matemáticos de Análise <span class="_5 blank"> </span>dos diodos; Equação do Diodo; Reta de Carga; </span></div><div class="t m1 xd h8 y20 ff1 fs6 fc3 sc0 ls4 ws2">4. <span class="fs7 ws9">Retificador<span class="_0 blank"></span>es; <span class="_5 blank"> </span>Grampeador<span class="_0 blank"></span>es e <span class="_5 blank"> </span>Limitador<span class="_0 blank"></span>es; <span class="_5 blank"> </span>Multipl<span class="_0 blank"></span>icadores de Tensão; </span></div><div class="t m1 xd h8 y21 ff1 fs6 fc3 sc0 ls4 ws2">5. <span class="fs7 ws9">Diodo Emissor de Luz<span class="_5 blank"> </span>; </span></div><div class="t m1 xd h8 y22 ff1 fs6 fc3 sc0 ls4 ws2">6. <span class="fs7 ws9">Diodo Zener; </span></div><div class="t m1 xd h8 y23 ff1 fs6 fc3 sc0 ls4 ws2">7. <span class="fs7 ws3">Reguladores.</span></div><div class="t m1 xc h7 y24 ff1 fs5 fc3 sc0 ls4 ws9">4. T<span class="_1 blank"></span>ransistor<span class="_0 blank"></span>es <span class="_5 blank"> </span>Bipolares de </div><div class="t m1 xc h7 y25 ff1 fs5 fc3 sc0 ls4 ws9">Junção, Polarização e </div><div class="t m1 xc h7 y26 ff1 fs5 fc3 sc0 ls4 ws1">Aplicações.</div><div class="t m1 xd h8 y27 ff1 fs6 fc3 sc0 ls4 ws2">1. <span class="fs7 ws9">Estrutura e princípio de funcionamento; Folha<span class="_0 blank"></span> <span class="_5 blank"> </span>de Especificação; </span></div><div class="t m1 xd h8 y28 ff1 fs6 fc3 sc0 ls4 ws2">2. <span class="fs7 ws9">Configurações BC, EC e CC e suas características; </span></div><div class="t m1 xd h8 y29 ff1 fs6 fc3 sc0 ls4 ws2">3. <span class="fs7 ws9">Polariz<span class="_0 blank"></span>ações <span class="_5 blank"> </span>DC e operação como chave; </span></div><div class="t m1 xd h8 y2a ff1 fs6 fc3 sc0 ls4 ws2">4. <span class="fs7 ws3">Aplicações.</span></div><div class="t m1 xc h7 y2b ff1 fs5 fc3 sc0 ls4 ws9">5. T<span class="_1 blank"></span>ransistor<span class="_0 blank"></span>es <span class="_5 blank"> </span>de Ef<span class="_1 blank"></span>eito d<span class="_5 blank"> </span>e </div><div class="t m1 xc h7 y2c ff1 fs5 fc3 sc0 ls4 ws9">Campo, Polarização e </div><div class="t m1 xc h7 y2d ff1 fs5 fc3 sc0 ls4 ws1">Aplicações.</div><div class="t m1 xd h8 y2e ff1 fs6 fc3 sc0 ls4 ws2">1. <span class="fs7 ws9">Estrutura e princípio de funcionamento; </span></div><div class="t m1 xd h8 y2f ff1 fs6 fc3 sc0 ls4 ws2">2. <span class="fs7 ws9">MOSFET de depleção e <span class="_5 blank"> </span>de intensificação; Configur<span class="_0 blank"></span>ações e<span class="_5 blank"> </span> suas caract<span class="_0 blank"></span>erísticas; </span></div><div class="t m1 xd h8 y30 ff1 fs6 fc3 sc0 ls4 ws2">3. <span class="fs7 ws9">Folha de Especificação; </span></div><div class="t m1 xd h8 y31 ff1 fs6 fc3 sc0 ls4 ws2">4. <span class="fs7 ws9">Polariz<span class="_0 blank"></span>ações; </span></div><div class="t m1 xd h8 y32 ff1 fs6 fc3 sc0 ls4 ws2">5. <span class="fs7 ws9">VMOS; CMOS; </span></div><div class="t m1 xd h8 y33 ff1 fs6 fc3 sc0 ls4 ws2">6. <span class="fs7 ws3">Aplicações.</span></div><div class="t m2 xf ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x10 h7 y35 ff1 fs5 fc1 sc0 ls4">2</div><div class="t m1 x11 hb y36 ff5 fs8 fc2 sc0 ls4 ws4">S<span class="_1 blank"></span>um<span class="_1 blank"></span>á<span class="_0 blank"></span>ri<span class="_1 blank"></span>o</div><div class="t m1 x12 h4 y37 ff4 fs2 fc3 sc0 ls4 ws9">Diodos especiais</div><div class="t m1 x12 hc y38 ff1 fs2 fc4 sc0 ls4 ws5">1. <span class="fc3 ws9">Diodo emissor de <span class="_5 blank"> </span>luz (LED)</span></div><div class="t m1 x12 hc y39 ff1 fs2 fc4 sc0 ls4 ws5">2. <span class="fc3 ws6">Fotodiodo</span></div><div class="t m1 x12 hc y3a ff1 fs2 fc4 sc0 ls4 ws5">3. <span class="fc3 ws9">T<span class="_2 blank"></span>ensão <span class="_5 blank"> </span>Z<span class="_0 blank"></span>ener</span></div><div class="t m1 x12 hc y3b ff1 fs2 fc4 sc0 ls4 ws5">4. <span class="fc3 ws9">Diodo Zener</span></div><div class="t m2 x13 ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x14 h7 y3d ff1 fs5 fc1 sc0 ls4">3</div><div class="t m1 xa hb y3e ff5 fs8 fc2 sc0 ls4 ws9">3<span class="_1 blank"></span>. <span class="_1 blank"></span>T<span class="_0 blank"></span>e<span class="_0 blank"></span>n<span class="_0 blank"></span>s<span class="_0 blank"></span>ã<span class="_1 blank"></span>o <span class="_2 blank"></span>Ze<span class="_1 blank"></span>n<span class="_0 blank"></span>e<span class="_0 blank"></span>r</div><div class="t m1 xa hd y3f ff6 fs9 fc5 sc0 ls0">\ue001<span class="ff7 fsa fc0 ls4 ws9">T<span class="_2 blank"></span>ensão de polarização reversa (V<span class="fsb ls1 ws7 v1">Zener<span class="_0 blank"></span><span class="fsa ls4 v2">)</span></span></span></div><div class="t m1 x15 he y40 ff8 fsc fc6 sc0 ls2">\ue001<span class="ff9 fsd fc0 ls4 ws9">T<span class="_0 blank"></span>ensão Zener<span class="_0 blank"></span>.</span></div><div class="t m1 xb hf y41 ff6 fs9 fc5 sc0 ls3">\ue002<span class="ff7 fse fc0 ls4 ws9">Ocorre quando um poten<span class="_5 blank"> </span>cial <span class="_0 blank"></span>de te<span class="_5 blank"> </span>nsão é tão alto que </span></div><div class="t m1 x16 hf y42 ff7 fse fc0 sc0 ls4 ws9">energiza os elétrons da<span class="_0 blank"></span> <span class="_5 blank"> </span>camad<span class="_0 blank"></span>a <span class="_5 blank"> </span>de v<span class="_0 blank"></span>alência, <span class="_5 blank"> </span>que </div><div class="t m1 x16 hf y43 ff9 fse fc0 sc0 ls4 ws9">desligam-se dos átomos<span class="_5 blank"> </span> <span class="ff7">d<span class="_0 blank"></span>o material s<span class="_5 blank"> </span>emicondutor<span class="_1 blank"></span>, e </span></div><div class="t m1 x16 hf y44 ff7 fse fc0 sc0 ls4 ws9">causa uma <span class="ff9">cor<span class="_5 blank"> </span>rente r<span class="_5 blank"> </span>ev<span class="_0 blank"></span>ersa elevada.</span></div><div class="t m1 x15 he y45 ff8 fsc fc6 sc0 ls2">\ue001<span class="ff9 fsd fc0 ls4 ws9">Corr<span class="_5 blank"> </span>ente de avalanche.</span></div><div class="t m1 xb hf y46 ff6 fs9 fc5 sc0 ls3">\ue002<span class="ff7 fse fc0 ls4 ws9">Ocorre com tensões<span class="_5 blank"> </span> <span class="_1 blank"></span>da <span class="_5 blank"> </span>ordem de 100<span class="_0 blank"></span>0 <span class="_5 blank"> </span>V<span class="_2 blank"></span>.</span></div><div class="t m1 x15 he y47 ff8 fsc fc6 sc0 ls2">\ue001<span class="ff9 fsd fc0 ls4 ws9">Diodos Zener (diodo especial)</span></div><div class="t m1 xb hf y48 ff6 fs9 fc5 sc0 ls3">\ue002<span class="ff7 fse fc0 ls4 ws9">Produzidos pa<span class="_0 blank"></span>ra obter<span class="_5 blank"> </span> V<span class="fsf ls1 ws8 v3">Zener </span>ma<span class="_0 blank"></span>is baixos.</span></div><div class="t m2 xf ha y49 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x10 h7 y3d ff1 fs5 fc1 sc0 ls4">4</div></div><div class="pi" data-data='{"ctm":[0.000000,-1.000000,1.000000,0.000000,0.000000,595.000000]}'></div></div> <div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w0 h0" alt="" src="https://files.passeidireto.com/ad60afaf-8400-4290-abf3-9847c0e54bf7/bg2.png"><div class="c x1 y1 w1 h1"><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls4">2</div></div><div class="t m1 x11 hb y4a ff5 fs8 fc2 sc0 ls4 ws9">4<span class="_1 blank"></span>. <span class="_1 blank"></span>D<span class="_0 blank"></span>i<span class="_0 blank"></span>od<span class="_1 blank"></span>o<span class="_0 blank"></span> <span class="_2 blank"></span>z<span class="_0 blank"></span>e<span class="_0 blank"></span>n<span class="_0 blank"></span>e<span class="_0 blank"></span>r</div><div class="t m1 x12 h10 y4b ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">São diodos pr<span class="_0 blank"></span>ojetados <span class="_1 blank"></span>para opera<span class="_0 blank"></span>r na <span class="ff4">r<span class="_0 blank"></span>egião de ruptura<span class="ff1">, </span></span></span></div><div class="t m1 x12 h10 y4c ff1 fs10 fc3 sc0 ls4 ws9">onde gr<span class="_0 blank"></span>andes va<span class="_0 blank"></span>riações de c<span class="_1 blank"></span>or<span class="_5 blank"> </span>ren<span class="_0 blank"></span>te pr<span class="_0 blank"></span>oduzem <span class="_1 blank"></span>pe<span class="_5 blank"> </span>quenas </div><div class="t m1 x12 h10 y4d ff1 fs10 fc3 sc0 ls4 ws9">varia<span class="_0 blank"></span>ções de t<span class="_0 blank"></span>ensão,</div><div class="t m1 x12 h10 y4e ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Ou seja, oper<span class="_0 blank"></span>am como <span class="ff4">r<span class="_0 blank"></span>eguladores de <span class="_0 blank"></span>tensão<span class="ff1">.</span></span></span></div><div class="t m1 x12 h11 y4f ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Note que um <span class="_1 blank"></span>d<span class="_5 blank"> </span>iodo <span class="_0 blank"></span>Zener é proje<span class="_0 blank"></span>tado par<span class="_0 blank"></span>a conduzir no </span></div><div class="t m1 x17 h11 y50 ff4 fs10 fc3 sc0 ls4 ws9">sentido <span class="_0 blank"></span>inver<span class="_0 blank"></span>so de um diodo <span class="_0 blank"></span>comum.</div><div class="t m2 x13 ha y51 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x14 h7 y35 ff1 fs5 fc1 sc0 ls4">6</div><div class="t m1 x18 h4 y52 ff4 fs2 fc3 sc0 ls4 ws6">ir</div><div class="t m1 x19 h12 y53 ff4 fs1 fc3 sc0 ls6">-<span class="ls4 v0">+</span></div><div class="t m1 xa hb y54 ff5 fs8 fc2 sc0 ls4 ws9">4<span class="_1 blank"></span>. <span class="_1 blank"></span>D<span class="_0 blank"></span>i<span class="_0 blank"></span>od<span class="_1 blank"></span>o<span class="_0 blank"></span> <span class="_2 blank"></span>z<span class="_0 blank"></span>e<span class="_0 blank"></span>n<span class="_0 blank"></span>e<span class="_0 blank"></span>r</div><div class="t m1 x1a h10 y55 ff1 fs10 fc3 sc0 ls4 ws9">Analisando <span class="_0 blank"></span>o gráfic<span class="_0 blank"></span>o, t<span class="_0 blank"></span>emos que:</div><div class="t m1 x1b h13 y56 ffa fs11 fc7 sc0 ls7">\u2022<span class="ff1 fc3 ls4 ws9">A região de tr<span class="_0 blank"></span>abalho do diodo Zener es<span class="_0 blank"></span>tá compreendi<span class="_0 blank"></span>da <span class="_5 blank"> </span>entr<span class="_1 blank"></span>e </span></div><div class="t m1 x1c h13 y57 ffb fs11 fc3 sc0 ls4 wsa">IZmín <span class="ff1 ws9">(menor corr<span class="_0 blank"></span>ent<span class="_0 blank"></span>e <span class="_5 blank"> </span>que manté<span class="_0 blank"></span>m <span class="_5 blank"> </span>a r<span class="_0 blank"></span>egulagem)</span></div><div class="t m1 x1b h13 y58 ffa fs11 fc7 sc0 ls7">\u2022<span class="ffb fc3 ls4 wsb">IZmáx <span class="ff1 ws9">(máxima cor<span class="_0 blank"></span>ren<span class="_0 blank"></span>te <span class="_5 blank"> </span>ant<span class="_1 blank"></span>es <span class="_5 blank"> </span>de ocorr<span class="_1 blank"></span>er <span class="_5 blank"> </span>a destruiç<span class="_0 blank"></span>ão <span class="_5 blank"> </span>do </span></span></div><div class="t m1 x1c h13 y59 ff1 fs11 fc3 sc0 ls4 ws9">compone<span class="_0 blank"></span>nte<span class="_0 blank"></span> <span class="_5 blank"> </span>por ef<span class="_1 blank"></span>eito <span class="_5 blank"> </span>Joule = cal<span class="_0 blank"></span>or)</div><div class="t m2 xf ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x10 h7 y35 ff1 fs5 fc1 sc0 ls4">7</div><div class="t m1 x11 hb y36 ff5 fs8 fc2 sc0 ls4 ws9">4<span class="_1 blank"></span>. <span class="_1 blank"></span>D<span class="_0 blank"></span>i<span class="_0 blank"></span>od<span class="_1 blank"></span>o<span class="_0 blank"></span> <span class="_2 blank"></span>z<span class="_0 blank"></span>e<span class="_0 blank"></span>n<span class="_0 blank"></span>e<span class="_0 blank"></span>r</div><div class="t m1 x12 h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">Analisando <span class="_0 blank"></span>o gráfic<span class="_0 blank"></span>o, t<span class="_0 blank"></span>emos que:</div><div class="t m1 x1d h13 y5b ffa fs11 fc7 sc0 ls7">\u2022<span class="ffb fc3 ls4 wsc">VZmáx<span class="ff1 ws9">, </span><span class="wsd">VZnom <span class="ff1 ws9">e </span><span class="wse">Vzmin <span class="ff1 ws9">sã<span class="_0 blank"></span>o valore<span class="_0 blank"></span>s <span class="_5 blank"> </span>muito pr<span class="_0 blank"></span>óximos,</span></span></span></span></div><div class="t m1 x1d h13 y5c ffa fs11 fc7 sc0 ls7">\u2022<span class="ff1 fc3 ls4 ws9">Podemos c<span class="_0 blank"></span>onsider<span class="_0 blank"></span>ar <span class="_5 blank"> </span>todo<span class="_0 blank"></span>s iguais <span class="_5 blank"> </span>à <span class="ffb wsf">V<span class="_0 blank"></span>znom <span class="ff1 ws9">(simplific<span class="_0 blank"></span>ação <span class="_5 blank"> </span>prát<span class="_0 blank"></span>ica </span></span></span></div><div class="t m1 x1e h13 y5d ff1 fs11 fc3 sc0 ls4 ws9">de projet<span class="_1 blank"></span>o!) </div><div class="t m2 x13 ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x14 h7 y3d ff1 fs5 fc1 sc0 ls4">8</div><div class="t m1 xa hb y36 ff5 fs8 fc2 sc0 ls4 ws9">P<span class="_1 blank"></span>ro<span class="_1 blank"></span>je<span class="_1 blank"></span>t<span class="_0 blank"></span>o<span class="_0 blank"></span> <span class="_1 blank"></span>c<span class="_0 blank"></span>o<span class="_0 blank"></span>m<span class="_0 blank"></span> <span class="_1 blank"></span>D<span class="_0 blank"></span>i<span class="_0 blank"></span>od<span class="_2 blank"></span>o <span class="_2 blank"></span>z<span class="_0 blank"></span>e<span class="_0 blank"></span>n<span class="_0 blank"></span>e<span class="_0 blank"></span>r</div><div class="t m1 x1a h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">Analisando <span class="_0 blank"></span>o gráfic<span class="_0 blank"></span>o, t<span class="_0 blank"></span>emos que:</div><div class="t m1 x1a h10 y5e ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">O projeto <span class="_1 blank"></span>de um regulador <span class="_0 blank"></span>utilizando <span class="_0 blank"></span>diodo Zener<span class="_7 blank"> </span>é f<span class="_0 blank"></span>eito </span></div><div class="t m1 x15 h10 y5c ff1 fs10 fc3 sc0 ls4 ws9">atr<span class="_0 blank"></span>av<span class="_0 blank"></span>és da máx<span class="_0 blank"></span>ima potência <span class="_0 blank"></span>desse (<span class="ffb ws10">PZmáx</span><span class="ws11">)<span class="_0 blank"></span>.</span></div><div class="t m1 x1a h10 y5f ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Em ger<span class="_1 blank"></span>al<span class="ff1">, pode<span class="_5 blank"> </span>mos <span class="_0 blank"></span>estimar <span class="ffb ws12">IZm<span class="_0 blank"></span>ín <span class="ff1 ws9">por (regr<span class="_0 blank"></span>a pr<span class="_0 blank"></span>ática<span class="_0 blank"></span> de </span></span></span></span></div><div class="t m1 x15 h10 y60 ff1 fs10 fc3 sc0 ls4 ws11">projeto):</div><div class="t m2 xf ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x10 h7 y3d ff1 fs5 fc1 sc0 ls4">9</div><div class="t m1 x1f h14 y61 ffc fs11 fc3 sc0 ls4 ws13">\ue001\ue002\ue003\ue004\ue005 = \ue007\ue002\ue003\ue004\ue005.<span class="_8 blank"> </span>\ue009\ue002\ue003\ue004\ue005 \u2248 \ue007\ue002\ue00b\ue00c\ue003.<span class="_8 blank"> </span>\ue009\ue002\ue003\ue004\ue005</div><div class="t m1 x20 h15 y62 ffc fs11 fc3 sc0 ls4 ws13">\ue009\ue002\ue003\ue004\ue005 = <span class="ws14 v4">\ue001\ue002\ue003\ue004\ue005</span></div><div class="t m1 x21 h16 y63 ffc fs11 fc3 sc0 ls4 ws15">\ue007\ue002\ue003\ue004\ue005 <span class="ls8 v5">\u2248</span><span class="ws14 v6">\ue001\ue002\ue003\ue004\ue005</span></div><div class="t m1 x22 h14 y63 ffc fs11 fc3 sc0 ls4 ws16">\ue007\ue002\ue00b\ue00c\ue003</div><div class="t m1 x23 h15 y64 ffc fs11 fc3 sc0 ls4 ws17">\ue009\ue002\ue003\ue00d\ue00b \u2248 <span class="ws14 v4">\ue009\ue002\ue003\ue004\ue005</span></div><div class="t m1 x24 h14 y65 ffc fs11 fc3 sc0 ls4 ws14">\ue00e\ue00f</div></div><div class="pi" data-data='{"ctm":[0.000000,-1.000000,1.000000,0.000000,0.000000,595.000000]}'></div></div> <div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x0 y0 w0 h0" alt="" src="https://files.passeidireto.com/ad60afaf-8400-4290-abf3-9847c0e54bf7/bg3.png"><div class="c x1 y1 w1 h1"><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls4">3</div></div><div class="t m1 x11 hb y54 ff5 fs8 fc2 sc0 ls4 ws9">D<span class="_0 blank"></span>i<span class="_0 blank"></span>o<span class="_0 blank"></span>d<span class="_0 blank"></span>o<span class="_0 blank"></span> <span class="_2 blank"></span>ze<span class="_1 blank"></span>n<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_9 blank"> </span>c<span class="_0 blank"></span>o<span class="_0 blank"></span>m<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_0 blank"></span>a<span class="_0 blank"></span>l</div><div class="t m1 x12 h10 y66 ff1 fs10 fc3 sc0 ls4 ws9">Diodos Zener<span class="_7 blank"> </span>c<span class="_0 blank"></span>omerciais:</div><div class="t m1 x12 h11 y67 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">1N4729A par<span class="_1 blank"></span>a<span class="_5 blank"> </span> 3,6V</span></div><div class="t m1 x12 h11 y68 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">1N4730A par<span class="_1 blank"></span>a<span class="_5 blank"> </span> 3,9V </span></div><div class="t m1 x12 h11 y69 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">1N4735A par<span class="_1 blank"></span>a<span class="_5 blank"> </span> 6,2V</span></div><div class="t m1 x12 h10 y6a ff1 fs10 fc3 sc0 ls4 ws9">V<span class="_1 blank"></span>alores de tensão:</div><div class="t m1 x12 h11 y6b ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">De 1,8V at<span class="_0 blank"></span>é 200V</span></div><div class="t m1 x12 h10 y6c ff1 fs10 fc3 sc0 ls4 ws9">V<span class="_1 blank"></span>alores de potência:</div><div class="t m1 x12 h10 y6d ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">0,25W<span class="_1 blank"></span>, <span class="_0 blank"></span>0,5W<span class="_1 blank"></span>, <span class="_0 blank"></span>1W<span class="_1 blank"></span>, 5W<span class="_2 blank"></span>, 10W e 50W<span class="ff1">.</span></span></div><div class="t m1 x12 h10 y35 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">A maioria dos <span class="_0 blank"></span>diodos Zener<span class="_7 blank"> </span>são fabric<span class="_0 blank"></span>ados <span class="_0 blank"></span>em silício.</span></div><div class="t m2 x13 ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x25 h7 y35 ff1 fs5 fc1 sc0 ls4 ws1">10</div><div class="t m1 xa hb y54 ff5 fs8 fc2 sc0 ls4 ws9">D<span class="_0 blank"></span>i<span class="_0 blank"></span>o<span class="_0 blank"></span>d<span class="_0 blank"></span>o<span class="_0 blank"></span> <span class="_2 blank"></span>ze<span class="_1 blank"></span>n<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_9 blank"> </span>c<span class="_0 blank"></span>o<span class="_0 blank"></span>m<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_0 blank"></span>a<span class="_0 blank"></span>l</div><div class="t m1 x1a h10 y66 ff1 fs10 fc3 sc0 ls4 ws9">Diodos Zener<span class="_7 blank"> </span>c<span class="_0 blank"></span>omerciais:</div><div class="t m1 x1a h11 y67 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">1N4729A par<span class="_1 blank"></span>a<span class="_5 blank"> </span> 3,6V</span></div><div class="t m1 x1a h11 y68 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">1N4730A par<span class="_1 blank"></span>a<span class="_5 blank"> </span> 3,9V </span></div><div class="t m1 x1a h11 y69 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">1N4735A par<span class="_1 blank"></span>a<span class="_5 blank"> </span> 6,2V</span></div><div class="t m1 x1a h10 y6a ff1 fs10 fc3 sc0 ls4 ws9">V<span class="_1 blank"></span>alores de tensão:</div><div class="t m1 x1a h11 y6b ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">De 1,8V at<span class="_0 blank"></span>é 200V</span></div><div class="t m1 x1a h10 y6c ff1 fs10 fc3 sc0 ls4 ws9">V<span class="_1 blank"></span>alores de potência:</div><div class="t m1 x1a h10 y6d ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">0,25W<span class="_1 blank"></span>, <span class="_0 blank"></span>0,5W<span class="_1 blank"></span>, <span class="_0 blank"></span>1W<span class="_1 blank"></span>, 5W<span class="_2 blank"></span>, 10W e 50W<span class="ff1">.</span></span></div><div class="t m1 x1a h10 y35 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">A maioria dos <span class="_0 blank"></span>diodos Zener<span class="_7 blank"> </span>são fabric<span class="_0 blank"></span>ados <span class="_0 blank"></span>em silício.</span></div><div class="t m2 xf ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x26 h7 y35 ff1 fs5 fc1 sc0 ls4 ws1">11</div><div class="t m1 x11 hb y36 ff5 fs8 fc2 sc0 ls4 ws9">R<span class="_0 blank"></span>e<span class="_0 blank"></span>g<span class="_0 blank"></span>u<span class="_0 blank"></span>l<span class="_0 blank"></span>a<span class="_0 blank"></span>d<span class="_1 blank"></span>or<span class="_1 blank"></span> <span class="_1 blank"></span>d<span class="_1 blank"></span>e <span class="_1 blank"></span>t<span class="_0 blank"></span>e<span class="_0 blank"></span>n<span class="_0 blank"></span>s<span class="_0 blank"></span>ã<span class="_0 blank"></span>o</div><div class="t m1 x12 h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">Ex<span class="_0 blank"></span>emplo de circuito <span class="_1 blank"></span>regulador de <span class="_0 blank"></span>tensão com<span class="_0 blank"></span> diodo z<span class="_0 blank"></span>ener:</div><div class="t m2 x13 ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x25 h7 y3d ff1 fs5 fc1 sc0 ls4 ws1">12</div><div class="t m1 xa hb y36 ff5 fs8 fc2 sc0 ls4 ws9">R<span class="_0 blank"></span>e<span class="_0 blank"></span>g<span class="_0 blank"></span>u<span class="_0 blank"></span>l<span class="_0 blank"></span>a<span class="_0 blank"></span>d<span class="_1 blank"></span>or<span class="_1 blank"></span> <span class="_1 blank"></span>d<span class="_1 blank"></span>e <span class="_1 blank"></span>t<span class="_0 blank"></span>e<span class="_0 blank"></span>n<span class="_0 blank"></span>s<span class="_0 blank"></span>ã<span class="_0 blank"></span>o</div><div class="t m1 x1a h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">Ex<span class="_0 blank"></span>emplo de circuito <span class="_1 blank"></span>regulador de <span class="_0 blank"></span>tensão com<span class="_0 blank"></span> diodo z<span class="_0 blank"></span>ener:</div><div class="t m1 x27 h17 y6e ff4 fs11 fc3 sc0 ls4 ws9">A resist<span class="_0 blank"></span>ência RS deve ser dimensionada considerando:</div><div class="t m1 x27 h17 y6f ffa fs11 fc3 sc0 ls9">\u2022<span class="ff4 ls4 ws9">que o circuit<span class="_0 blank"></span>o mantenha a regulação <span class="_0 blank"></span>mesm<span class="_5 blank"> </span>o <span class="_0 blank"></span>que a carga v<span class="_0 blank"></span>arie entre um </span></div><div class="t m1 xa h17 y70 ff4 fs11 fc3 sc0 ls4 ws9">máximo e um mínimo;</div><div class="t m1 x27 h17 y71 ffa fs11 fc3 sc0 ls9">\u2022<span class="ff4 ls4 ws9">e ao mesmo tempo a t<span class="_0 blank"></span>ensão de entrada va<span class="_0 blank"></span>rie entre dois li<span class="_0 blank"></span>mites (Vemáx<span class="_8 blank"> </span>e<span class="_5 blank"> </span> </span></div><div class="t m1 xa h17 y72 ff4 fs11 fc3 sc0 ls4 ws18">V<span class="_0 blank"></span>emín);</div><div class="t m1 x27 h17 y73 ffa fs11 fc3 sc0 ls9">\u2022<span class="ff4 ls4 ws9">e a potência dissipada no Z<span class="_0 blank"></span>ener não ex<span class="_0 blank"></span>ceda o limite (PZmáx).</span></div><div class="t m2 xf ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x26 h7 y3d ff1 fs5 fc1 sc0 ls4 ws1">13</div></div><div class="pi" data-data='{"ctm":[0.000000,-1.000000,1.000000,0.000000,0.000000,595.000000]}'></div></div> <div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x0 y0 w0 h0" alt="" src="https://files.passeidireto.com/ad60afaf-8400-4290-abf3-9847c0e54bf7/bg4.png"><div class="c x1 y1 w1 h1"><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls4">4</div></div><div class="t m1 x11 hb y54 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x12 h10 y55 ff1 fs10 fc3 sc0 ls4 ws9">1) Qual a má<span class="_1 blank"></span>xima e mínima corren<span class="_0 blank"></span>te de <span class="_0 blank"></span>um diodo z<span class="_0 blank"></span>ener</div><div class="t m1 x12 h10 y67 ff1 fs10 fc3 sc0 ls4 ws9">1N473<span class="_5 blank"> </span>5A <span class="_1 blank"></span>de 1W?</div><div class="t m2 x13 ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x25 h7 y35 ff1 fs5 fc1 sc0 ls4 ws1">14</div><div class="t m1 xa hb y54 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x1a h10 y55 ff1 fs10 fc3 sc0 ls4 ws9">1) Qual a má<span class="_1 blank"></span>xima e mínima corren<span class="_0 blank"></span>te de <span class="_0 blank"></span>um diodo z<span class="_0 blank"></span>ener</div><div class="t m1 x1a h10 y67 ff1 fs10 fc3 sc0 ls4 ws9">1N473<span class="_5 blank"> </span>5A <span class="_1 blank"></span>de 1W?</div><div class="t m1 x1a h18 y74 ffb fs10 fc3 sc0 ls4 ws10">Soluçã<span class="_0 blank"></span>o:</div><div class="t m1 x1a h10 y75 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">1N473<span class="_5 blank"> </span>5A <span class="_1 blank"></span>tem VZnom= 6,2V</span></div><div class="t m1 x1a h10 y76 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Sabemos que <span class="_0 blank"></span>a potência <span class="_0 blank"></span>é de 1W</span></div><div class="t m1 x1a h11 y77 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Logo a corr<span class="_1 blank"></span>ente será IZ<span class="_0 blank"></span>máx= 1W/6,2V =161mA</span></div><div class="t m1 x1a h10 y78 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Vimos que a c<span class="_0 blank"></span>orrente <span class="_1 blank"></span>mín<span class="_5 blank"> </span>ima <span class="_0 blank"></span>é 10 vez<span class="_1 blank"></span>es menor que a </span></div><div class="t m1 x15 h10 y79 ff1 fs10 fc3 sc0 ls4 ws9">corren<span class="_0 blank"></span>te m<span class="_0 blank"></span>áxima, assim t<span class="_0 blank"></span>emos: <span class="ff4">Izmin = 16,1mA</span></div><div class="t m2 xf ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x26 h7 y35 ff1 fs5 fc1 sc0 ls4 ws1">15</div><div class="t m1 x11 hb y36 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x12 h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">2) O que oc<span class="_0 blank"></span>orre se agor<span class="_1 blank"></span>a utilizarmos <span class="_0 blank"></span> o mesmo diodo (z<span class="_1 blank"></span>ener</div><div class="t m1 x12 h10 y7a ff1 fs10 fc3 sc0 ls4 ws9">1N473<span class="_5 blank"> </span>5A) <span class="_2 blank"></span>porém de 0,5W?</div><div class="t m2 x13 ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x25 h7 y3d ff1 fs5 fc1 sc0 ls4 ws1">16</div><div class="t m1 xa hb y36 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x1a h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">2) O que oc<span class="_0 blank"></span>orre se agor<span class="_1 blank"></span>a utilizarmos <span class="_0 blank"></span> o mesmo diodo (z<span class="_1 blank"></span>ener</div><div class="t m1 x1a h10 y7a ff1 fs10 fc3 sc0 ls4 ws9">1N473<span class="_5 blank"> </span>5A) <span class="_2 blank"></span>porém de 0,5W?</div><div class="t m1 x1a h18 y7b ffb fs10 fc3 sc0 ls4 ws10">Soluçã<span class="_0 blank"></span>o:</div><div class="t m1 x1a h10 y7c ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">1N473<span class="_5 blank"> </span>5A <span class="_1 blank"></span>tem VZnom= 6,2V</span></div><div class="t m1 x1a h10 y7d ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Sabemos que <span class="_0 blank"></span>a potência <span class="_0 blank"></span>é de 0,5W</span></div><div class="t m1 x1a h11 y7e ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Logo a corr<span class="_1 blank"></span>ente será IZ<span class="_0 blank"></span>máx= 0,5W/6,2V =80mA</span></div><div class="t m1 x1a h10 y5f ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Vimos que a c<span class="_0 blank"></span>orrente <span class="_1 blank"></span>mín<span class="_5 blank"> </span>ima <span class="_0 blank"></span>é 10 vez<span class="_1 blank"></span>es menor que a </span></div><div class="t m1 x15 h10 y60 ff1 fs10 fc3 sc0 ls4 ws9">corren<span class="_0 blank"></span>te m<span class="_0 blank"></span>áxima, assim t<span class="_0 blank"></span>emos: <span class="ff4">IZmin = 8mA</span></div><div class="t m2 xf ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x26 h7 y3d ff1 fs5 fc1 sc0 ls4 ws1">17</div></div><div class="pi" data-data='{"ctm":[0.000000,-1.000000,1.000000,0.000000,0.000000,595.000000]}'></div></div> <div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x0 y0 w0 h0" alt="" src="https://files.passeidireto.com/ad60afaf-8400-4290-abf3-9847c0e54bf7/bg5.png"><div class="c x1 y1 w1 h1"><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls4">5</div></div><div class="t m1 x11 hb y54 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x12 h10 y55 ff1 fs10 fc3 sc0 ls4 ws9">3) P<span class="_0 blank"></span>ar<span class="_0 blank"></span>a o exemplo <span class="_0 blank"></span>anterior <span class="_0 blank"></span>(diodo z<span class="_1 blank"></span>ener 1N4<span class="_5 blank"> </span>735A <span class="_1 blank"></span>de 0,5W). </div><div class="t m1 x12 h10 y67 ff1 fs10 fc3 sc0 ls4 ws9">Determine <span class="_0 blank"></span>os limites de RL par<span class="_1 blank"></span>a que que o diodo <span class="_0 blank"></span>zener oper<span class="_0 blank"></span>e na </div><div class="t m1 x12 h10 y7f ff1 fs10 fc3 sc0 ls4 ws9">região de r<span class="_0 blank"></span>egulação.</div><div class="t m2 x13 ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x25 h7 y35 ff1 fs5 fc1 sc0 ls4 ws1">18</div><div class="t m1 xa hb y54 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x1a h10 y55 ff1 fs10 fc3 sc0 ls4 ws9">3) P<span class="_0 blank"></span>ar<span class="_0 blank"></span>a o exemplo <span class="_0 blank"></span>anterior <span class="_0 blank"></span>(diodo z<span class="_1 blank"></span>ener 1N4<span class="_5 blank"> </span>735A <span class="_1 blank"></span>de 0,5W). </div><div class="t m1 x1a h10 y67 ff1 fs10 fc3 sc0 ls4 ws9">Determine <span class="_0 blank"></span>os limites de RL par<span class="_1 blank"></span>a que que o diodo <span class="_0 blank"></span>zener oper<span class="_0 blank"></span>e na </div><div class="t m1 x1a h10 y7f ff1 fs10 fc3 sc0 ls4 ws9">região de r<span class="_0 blank"></span>egulação.</div><div class="t m1 x1a h18 y80 ffb fs10 fc3 sc0 ls4 ws10">Soluçã<span class="_0 blank"></span>o:</div><div class="t m1 x1a h10 y81 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Já sabemos que: <span class="_0 blank"></span><span class="ff4 ws19">IZmáx=80mA <span class="ff1 ws9">e <span class="ff4">Izmin = 8mA</span></span></span></span></div><div class="t m1 x1a h11 y82 ffa fs10 fc4 sc0 ls5">\u2022<span class="ffb fc3 ls4 ws10">VZnom<span class="ff4 ws11">=6,2V</span></span></div><div class="t m1 x1a h19 y83 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Corrent<span class="_0 blank"></span>e no resis<span class="_0 blank"></span>tor Rs<span class="_7 blank"> </span>será<span class="_0 blank"></span>: <span class="ffc ws1a">\ue009<span class="fs4 lsa v7">\ue010</span><span class="lsb">=</span><span class="fs4 ws1b v5">\ue00e\ue011\ue007\ue012\ue013,\ue011\ue007</span></span></span></div><div class="t m1 x28 h1a y84 ffc fs4 fc3 sc0 ls4 ws1c">\ue013\ue00f <span class="fs10 ws1d v8">=<span class="_3 blank"> </span>\ue015\ue013, \ue013\ue003\ue016</span></div><div class="t m1 x1a h10 y85 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Limite <span class="_0 blank"></span>inferior: <span class="ff1">Quando <span class="_1 blank"></span>t<span class="_5 blank"> </span>iv<span class="_0 blank"></span>ermos a menor c<span class="_0 blank"></span>orrente <span class="_1 blank"></span>zener</span></span></div><div class="t m1 x15 h10 y86 ff1 fs10 fc3 sc0 ls4 ws11">(8mA)</div><div class="t m1 x1a h10 y87 ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Limite <span class="_0 blank"></span>superior: <span class="ff1">Quando tiv<span class="_1 blank"></span>e<span class="_5 blank"> </span>rmos a<span class="_0 blank"></span> maior c<span class="_0 blank"></span>orrente z<span class="_1 blank"></span>ener</span></span></div><div class="t m1 x15 h10 y88 ff1 fs10 fc3 sc0 ls4 ws11">(80mA)</div><div class="t m2 xf ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x26 h7 y35 ff1 fs5 fc1 sc0 ls4 ws1">19</div><div class="t m1 x11 hb y36 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x12 h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">3) P<span class="_0 blank"></span>ar<span class="_0 blank"></span>a o exemplo <span class="_0 blank"></span>anterior <span class="_0 blank"></span>(diodo z<span class="_1 blank"></span>ener 1N4<span class="_5 blank"> </span>735A <span class="_1 blank"></span>de 0,5W). </div><div class="t m1 x12 h10 y7a ff1 fs10 fc3 sc0 ls4 ws9">Determine <span class="_0 blank"></span>os limites de RL par<span class="_1 blank"></span>a que que o diodo <span class="_0 blank"></span>zener oper<span class="_0 blank"></span>e na </div><div class="t m1 x12 h10 y89 ff1 fs10 fc3 sc0 ls4 ws9">região de r<span class="_0 blank"></span>egulação.</div><div class="t m1 x12 h18 y8a ffb fs10 fc3 sc0 ls4 ws10">Soluçã<span class="_0 blank"></span>o:</div><div class="t m1 x12 h10 y8b ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Limite <span class="_0 blank"></span>inferior: <span class="ff1">Quando <span class="_1 blank"></span>t<span class="_5 blank"> </span>iv<span class="_0 blank"></span>ermos a menor c<span class="_0 blank"></span>orrente <span class="_1 blank"></span>zener</span></span></div><div class="t m1 x17 h10 y8c ff1 fs10 fc3 sc0 ls4 ws11">(8mA)</div><div class="t m1 x12 h10 y8d ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Assim a corr<span class="_0 blank"></span>ente <span class="_0 blank"></span>na car<span class="_0 blank"></span>ga ser<span class="_0 blank"></span>á: <span class="ffc ws1a">\ue009<span class="fs4 lsc v7">\ue017</span><span class="ws1e">=<span class="_3 blank"> </span>\ue015\ue013, \ue013\ue003\ue016 \u2212<span class="_3 blank"> </span>\ue019<span class="_0 blank"></span>\ue003\ue016<span class="_3 blank"> </span>=</span></span></span></div><div class="t m1 x17 h1b y8e ffc fs10 fc3 sc0 ls4 ws1d">\ue019\ue019, \ue013\ue003\ue016</div><div class="t m1 x12 h19 y8f ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">E a car<span class="_0 blank"></span>ga dev<span class="_0 blank"></span>erá <span class="_0 blank"></span>ser: <span class="ffc lsd">\ue01a<span class="fs4 lse v7">\ue017</span><span class="lsf">=<span class="fs4 ls4 ws1b v5">\ue013,\ue011\ue007</span></span></span></span></div><div class="t m1 x29 h1a y90 ffc fs4 fc3 sc0 ls4 ws1f">\ue019\ue019,\ue013\ue003\ue016 <span class="fs10 ws20 v8">= \ue01b\ue00f\ue01c</span></div><div class="t m2 x13 ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x25 h7 y3d ff1 fs5 fc1 sc0 ls4 ws1">20</div><div class="t m1 xa hb y36 ff5 fs8 fc2 sc0 ls4 ws4">E<span class="_0 blank"></span>x<span class="_0 blank"></span>e<span class="_0 blank"></span>r<span class="_0 blank"></span>c<span class="_0 blank"></span>í<span class="_0 blank"></span>c<span class="_0 blank"></span>i<span class="_1 blank"></span>os</div><div class="t m1 x1a h10 y5a ff1 fs10 fc3 sc0 ls4 ws9">3) P<span class="_0 blank"></span>ar<span class="_0 blank"></span>a o exemplo <span class="_0 blank"></span>anterior <span class="_0 blank"></span>(diodo z<span class="_1 blank"></span>ener 1N4<span class="_5 blank"> </span>735A <span class="_1 blank"></span>de 0,5W). </div><div class="t m1 x1a h10 y7a ff1 fs10 fc3 sc0 ls4 ws9">Determine <span class="_0 blank"></span>os limites de RL par<span class="_1 blank"></span>a que que o diodo <span class="_0 blank"></span>zener oper<span class="_0 blank"></span>e na </div><div class="t m1 x1a h10 y89 ff1 fs10 fc3 sc0 ls4 ws9">região de r<span class="_0 blank"></span>egulação.</div><div class="t m1 x1a h18 y8a ffb fs10 fc3 sc0 ls4 ws10">Soluçã<span class="_0 blank"></span>o:</div><div class="t m1 x1a h10 y8b ffa fs10 fc4 sc0 ls5">\u2022<span class="ff4 fc3 ls4 ws9">Limite <span class="_0 blank"></span>superior: <span class="ff1">Quando tiv<span class="_1 blank"></span>e<span class="_5 blank"> </span>rmos a<span class="_0 blank"></span> maior c<span class="_0 blank"></span>orrente z<span class="_1 blank"></span>ener</span></span></div><div class="t m1 x15 h10 y8c ff1 fs10 fc3 sc0 ls4 ws11">(80mA)</div><div class="t m1 x1a h10 y8d ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">Assim a corr<span class="_0 blank"></span>ente <span class="_0 blank"></span>na car<span class="_0 blank"></span>ga ser<span class="_0 blank"></span>á: <span class="ffc ws1a">\ue009<span class="fs4 lsc v7">\ue017</span><span class="ws1e">=<span class="_3 blank"> </span>\ue015\ue013, \ue013\ue003\ue016 \u2212<span class="_3 blank"> </span>\ue019<span class="_0 blank"></span>\ue00f\ue003\ue016<span class="_3 blank"> </span>=</span></span></span></div><div class="t m1 x15 h1b y8e ffc fs10 fc3 sc0 ls4 ws1d">\ue00e\ue013, \ue013\ue003\ue016</div><div class="t m1 x1a h19 y8f ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws9">E a car<span class="_0 blank"></span>ga dev<span class="_0 blank"></span>erá <span class="_0 blank"></span>ser: <span class="ffc lsd">\ue01a<span class="fs4 lse v7">\ue017</span><span class="lsf">=<span class="fs4 ls4 ws1b v5">\ue013,\ue011\ue007</span></span></span></span></div><div class="t m1 x2a h1a y90 ffc fs4 fc3 sc0 ls4 ws21">\ue00e\ue013,\ue013\ue003\ue016 <span class="fs10 ws1e v8">=<span class="_3 blank"> </span>\ue01d\ue01b\ue01d, \ue01e\ue01c</span></div><div class="t m2 xf ha y3c ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x26 h7 y3d ff1 fs5 fc1 sc0 ls4 ws1">21</div></div><div class="pi" data-data='{"ctm":[0.000000,-1.000000,1.000000,0.000000,0.000000,595.000000]}'></div></div> <div id="pf6" class="pf w0 h0" data-page-no="6"><div class="pc pc6 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x0 y0 w0 h0" alt="" src="https://files.passeidireto.com/ad60afaf-8400-4290-abf3-9847c0e54bf7/bg6.png"><div class="c x1 y1 w1 h1"><div class="t m0 x0 h2 y2 ff1 fs0 fc0 sc0 ls4">6</div></div><div class="t m1 x11 hb y54 ff5 fs8 fc2 sc0 ls4 ws4">B<span class="_0 blank"></span>i<span class="_0 blank"></span>b<span class="_1 blank"></span>li<span class="_1 blank"></span>og<span class="_1 blank"></span>r<span class="_0 blank"></span>a<span class="_0 blank"></span>f<span class="_1 blank"></span>i<span class="_0 blank"></span>a</div><div class="t m1 x2b h10 y55 ffa fs10 fc4 sc0 ls5">\u2022<span class="ffd fc3 ls4 ws22">BO<span class="_0 blank"></span>YLEST<span class="_2 blank"></span>AD, R<span class="_0 blank"></span>obert & NASHELSKY<span class="_2 blank"></span>, Louis<span class="_0 blank"></span><span class="ff1 ls10">.<span class="ff4 ls4 ws23">Dispositivo<span class="_0 blank"></span>s Eletrôni<span class="_0 blank"></span>cos</span></span></span></div><div class="t m1 x12 h10 y67 ff4 fs10 fc3 sc0 ls4 ws24">e T<span class="_1 blank"></span>eoria de Cir<span class="_0 blank"></span>cuitos <span class="ff1 ws25">- Rio de Janeir<span class="_0 blank"></span>o, Edit<span class="_0 blank"></span>ora Pr<span class="_0 blank"></span>entice-Ha<span class="_0 blank"></span>ll do</span></div><div class="t m1 x12 h10 y7f ff1 fs10 fc3 sc0 ls4 ws26">Bra<span class="_0 blank"></span>sil Ltda;</div><div class="t m1 x2b h10 y69 ffa fs10 fc4 sc0 ls5">\u2022<span class="ffd fc3 ls4 ws27">MAL<span class="_1 blank"></span>VINO<span class="_0 blank"></span>, Albert P<span class="_0 blank"></span>aul<span class="ff1 ls11">.</span><span class="ff4 ws28">Ele<span class="_0 blank"></span>trônica. <span class="ff1 ws29">São P<span class="_1 blank"></span>aulo, McGr<span class="_0 blank"></span>aw-Hill do</span></span></span></div><div class="t m1 x12 h10 y91 ff1 fs10 fc3 sc0 ls4 ws2a">Bra<span class="_0 blank"></span>sil.<span class="_a blank"> </span>V<span class="_0 blank"></span>ol. 1.</div><div class="t m1 x2b h10 y6a ffa fs10 fc4 sc0 ls5">\u2022<span class="ff1 fc3 ls4 ws2b">PINTO<span class="_1 blank"></span>, Luiz Fernando T<span class="_2 blank"></span>eixeir<span class="_1 blank"></span>a & ALBUQUERQUE, R<span class="_1 blank"></span>ômulo Oliveira.</span></div><div class="t m1 x12 h10 y92 ff4 fs10 fc3 sc0 ls4 ws2c">Eletr<span class="_0 blank"></span>ônica: eletrônica a<span class="_0 blank"></span>nalógica<span class="ff1 ws2d">. Fu<span class="_0 blank"></span>ndação P<span class="_0 blank"></span>adre Anch<span class="_0 blank"></span>ieta. São</span></div><div class="t m1 x12 h10 y93 ff1 fs10 fc3 sc0 ls4 ws2e">P<span class="_0 blank"></span>aulo. 2011<span class="_5 blank"> </span>.</div><div class="t m2 x13 ha y34 ff4 fs5 fc1 sc0 ls4 ws9">UTFPR @ Pato Branco - Eletr<span class="_0 blank"></span>ônica A</div><div class="t m1 x25 h7 y35 ff1 fs5 fc1 sc0 ls4 ws1">22</div></div><div class="pi" data-data='{"ctm":[0.000000,-1.000000,1.000000,0.000000,0.000000,595.000000]}'></div></div>
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