12 Led Display
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Transcript of 12 Led Display
![Page 1: 12 Led Display](https://reader033.fdocuments.in/reader033/viewer/2022052215/5460bb16b1af9ff0588b54de/html5/thumbnails/1.jpg)
EL LEDLIGHT
EMITTING
DIODE
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DIODOS LED TÍPICOS
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cátodo
Cátodo
terminal mas
corto
plástico
Parte plana del encapsulado
cátodo
ánodo
Vista inferior
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CONSTRUCCIÓN DE UN DIODO LED
El terminal del
cátodo es mas
corto que el
terminal del ánodo
Este corte en el domo indica
el cátodo
LENTE
MAGNIFICADOR
ANODO
Terminales de
cobre plateado
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OPERACIÓN BÁSICA DE UN LED
Operación en polarización directa Relación corriente vs iluminación
Iluminación
V
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EJEMPLOS DE CURVAS SPECTRALES DE SALIDA DE ALGUNOS LEDS
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CONTROL REMOTO DE UN TV
Apariencia
externa
Construcción
interna
Teclado y
contactos Vista ampliada
de un contacto
Diodo LED IRED
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PARTE POSTERIOR DEL CONTROL REMOTO DE UN TV
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SEÑAL DE TRANSMISIÓN.
POR TREN DE PULSOS
Tecla pulsada
Tecla pulsada
Alta frecuencia Baja frecuencia Frecuencia media
Aumenta el volumen
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DIODO LED MULTICOLOR
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APLICACIONES DEL DIODO LED
Sabiendo que :
VF = 2 Voltios
IF = 20 mA
El valor de R es :
R = 150 ohms
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APLICACIONES DEL DIODO LED
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MULTIVIBRADOR ASTABLE
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EL DISPLAY DE SIETE SEGMENTOS TIPO LED
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IDENTIFICACIÓN DE LOS SEGMENTOS
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DISPLAY DE 1, 2 Y 3 DÍGITOS
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DISPLAY CÁTODO COMÚN Y ÁNODO COMÚN
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DISPLAY DE SIETE SEGMENTOS, TIPO LED
Arreglo de los segmentos y dispositivo típico
Anodo común Cátodo común
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VISTA AMPLIADA DEL DISPLAY DE ANODO COMÚN
Punto
decimal Punto
decimal
AnodosAnodos
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EL DISPLAY DE SIETE SEGMENTOS
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ARREGLO DE 7 SEGMENTOS Y
SEGMENTOS ACTIVOS PARA CADA DIGITO
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CARACTERES HEXADECIMALES EN UN DISPLAY DE 7 SEGMENTOS
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EL PRIMER CIRCUITO INTEGRADO
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JACK KILBY
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Circuito Integrado DIP
Ubicación del pin número 1 en un Chip DIP
y de montaje superficial
Pin 1
TOP VIEW
1 23 4
9
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CIRCUITO INTEGRADO LM555CN
TOP VIEW
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 9
REFERENCIA
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CIRCUITO INTEGRADO LM555CN
1
2
3
4 5
6
7
8
REFERENCIA
TOP VIEW
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a) DECODIFICADOR BCD A 7 SEGMENTOS EXCITANDO A UN DISPLAY
DE 7 SEGMENTOS (b) PATRON DE SEGMENTOS PARA LOS CODIGOS
DE ENTRADA
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EL CONTADOR DIGITAL
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EL CONTADOR DIGITAL
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DISPLAY ALFANUMÉRICOS TIPO LCD
LIQUID
CRYSTAL
DISPLAY
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THE END