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Lab #1 - Diodes. Real Diode Characteristic. Simple Approximation. I. I. Forward conduction region. Forward conduction region. I. V. V br. V br. V. V on. V. Reverse saturation region. V on. Diodes. Reflector. LED symbol. LEDs. R. A. I d. 1 k Ω. I d. 12 V. V d.

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Diodes

Real Diode Characteristic

Simple Approximation

I

I

Forward conduction

region

Forward conduction

region

I

V

Vbr

Vbr

V

Von

V

Reverse saturation region

Von

Diodes


Lab 1 diodes

Reflector

LED symbol

LEDs


Diode biasing

R

A

Id

1 kΩ

Id

12 V

Vd

Vs

V

Vd

Diode Biasing

R

Id

12 V

Vd


Series diodes

1 k

12 V

Vout

470 Ω

Vout

5 V

1 kΩ

Vs

1 kΩ

12 V

Vout

RL

Series Diodes


Diodes in parallel

R

R

R

Vs

Vs

R

Red

Vs

Green

Red

Green

Diodes in Parallel


Limiters rectifiers

Vin

10 kΩ

Vout

Bright

CL

Dim

Vin

10 kΩ

Vout

Lamp

AC in

Off

10 kΩ

Vin

Vout

Vin

t

Vout

Limiters/Rectifiers


Limiters

1 k

10 kΩ

Vin

Vout

Vin

Vout

Limiters


Diode logic
Diode Logic

+5 V

V1

470 Ω

V1

V2

Vout

Vout

470 Ω

V2

+5 V

470 Ω


Zener diodes

Iz

Vz

10

6.8

3.3

Vz

Iz

1N758A

1N754A

1N746A

10 kΩ

Vin

Vout

Zener Diodes


Voltage multipliers

1 μF

Vout

Vin

100 kΩ

1 μF

Vin

Vin

Vout

Vout

Voltage Multipliers