aula 04 - ieee web hosting · 2016-10-10 · aula 04 author: rodrigo mendonca created date:...
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Aula 04
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Sumário
2
• Revisão;
• Circuito do Cotidiano;
• Transistor.
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RevisãoCapacitores
• Capacitor é responsável por armazenar
energia elétrica no circuito.
4
Fonte: http://www.sabereletrica.com.br/entenda-o-funcionamento-dos-capacitores
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RevisãoAssociações de Capacitores
5
• O primeiro tipo é a em série, formando
uma fila única de capacitores.
•O segundo é a em paralelo, são
formadas mais de uma fila de capacitores.
• Para descobrir o capacitor equivalente,
basta lembrar de duas coisas:
● É sempre uma soma;
● Se for em série, dá a cambalhota.
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RevisãoAssociações de Capacitores
Componente Resistor Capacitor
Associação
SérieREQ=R1+R2+⋯+Rn
1 1 1 1
R=
R +
R +⋯+
REQ 1 2 n
Paralelo1 1 1 1
C=
C +
C +⋯+
CEQ 1 2 n
CEQ=C1+C2+⋯+Cn
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Circuitos do CotidianoNecessidade
• Sua mãe avisa que você não pode pisar
no chão molhado, para que não caia e
bata a cabeça no chão. Feliz com o aviso
de sua mãe e, para deixar o aviso aos
próximos, você constrói um
.
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Circuitos do CotidianoExperimento –Aspecto Geral
• O que vai construir ficará assim...
9
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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Circuitos do CotidianoExperimento –Materiais
• Separe os materiais:
1x
1x
1x
1x
1x 1x
1x 1x
1x
4x
1x
10
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Circuitos do CotidianoExperimento –Construção
• Coloque os componentes como indicado:
11
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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Circuitos do CotidianoExperimento –Construção
• Coloque os componentes como indicado:
12
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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Circuitos do CotidianoExperimento –Construção
• Coloque os componentes como indicado:
13
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorContextualização
• Considere uma fila de formigas e uma
formiga-chefe.
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TransistorContextualização
•A formiga-chefe garante o trabalho das
demais, permitindo ou não o trabalho.
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TransistorContextualização
• Quando o trabalho não é permitido, todas
as formigas ficam paradas, aguardando a
liberação. Ao haver a permissão, todas as
formigas levam a mesma quantidade de
folhas e de frutos para o formigueiro.
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TransistorContextualização
• Além de permitir ou não o trabalho, a
formiga-chefe pode animar ou desanimar
as demais.
+++
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TransistorContextualização
• Além de permitir ou não o trabalho, a
formiga-chefe pode animar ou desanimar
as demais.
- - -
18
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TransistorExperimento –Aspecto Geral
• O que vai construir ficará assim...
19
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento –Materiais
• Separe os materiais:
2x
1x
1x
1x
1x
1x 1x 1x
3x 1x1x
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TransistorExperimento –Construção
• Coloque os componentes como indicado:
21
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento –Construção
• Coloque os componentes como indicado:
22
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento –Construção
• Coloque os componentes como indicado:
23
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 2 –Aspecto Geral
• O que vai construir ficará assim...
24
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 2 –Materiais
• Separe os materiais:
2x
1x
1x
1x
1x
1x 1x 1x
3x 1x1x
25
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TransistorExperimento 2 –Construção
• Coloque os componentes como indicado:
26
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 2 –Construção
• Coloque os componentes como indicado:
27
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 2 –Construção
• Coloque os componentes como indicado:
28
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 3 –Aspecto Geral
• O que vai construir ficará assim...
29
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 3 –Materiais
• Separe os materiais:
2x
1x
1x
1x
1x
1x 1x 1x
3x 1x1x
30
1x
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TransistorExperimento 3 –Construção
• Coloque os componentes como indicado:
31
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 3 –Construção
• Coloque os componentes como indicado:
32
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 3 –Construção
• Coloque os componentes como indicado:
33
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 4
• Troquem a lâmpada pelo conector de 3 e
vice-versa, como mostrado.
34
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 5 –Aspecto Geral
• O que vai construir ficará assim...
35
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 5 –Materiais
• Separe os materiais:
2x
1x
1x
1x
1x
1x 1x 1x
3x 1x1x
36
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TransistorExperimento 5 –Construção
• Coloque os componentes como indicado:
37
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 5 –Construção
• Coloque os componentes como indicado:
38
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 5 –Construção
• Coloque os componentes como indicado:
39
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorExperimento 6
• Troquem a lâmpada pelo conector de 3 e
vice-versa, como mostrado.
40
B
C
D
E
F
2 3 4 5 6
A
G
1 7 8 9 10
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TransistorConceito Básico
• Conhecemos o transistor, componentes
de três pernas. Onde a corrente elétrica
em duas é controlada pela terceira.
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TransistorConceito Básico
• O controle pode ser total ou parcial.
• Sendo total é dito como uma chave;
parcial como amplificador.
42
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TransistorConceito Básico
• As pernas são: coletor, base e emissor.
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