lecture 5 introduction to electronics rabie a. ramadan rabieramadan@gmail.com

Lecture 5

Introduction to Electronics Introduction to Electronics

Rabie A. Ramadanrabieramadan@gmail.com

http://www.rabieramadan.org/classes/2014/electronics/

Lecture 4, Slide 2

Diode Applications

Lecture 4, Slide 3

SERIES DIODE CONFIGURATIONSWITH DC INPUTS

Lecture 4, Slide 4

Diode in Reverse State

Lecture 4, Slide 5

Example

• For the series diode configuration, determine VD, VR, and ID

Lecture 4, Slide 6

Example 2

• If the diode in reverse order , determine VD, VR, and ID

Lecture 4, Slide 7

Example 3

• For the series diode configuration, determine VD, VR, and ID.

Lecture 4, Slide 8

Example 4

• Determine Vo and ID for the series circuit?

Lecture 4, Slide 9

Example 5

• Determine ID, VD2, and Vo for the circuit

Lecture 4, Slide 10

Example 5

Lecture 4, Slide 11

Example 6

Lecture 4, Slide 12

Example 6

Lecture 4, Slide 13

Example 7

• Determine the current I for the network?

Lecture 4, Slide 14

Example 7

Lecture 4, Slide 15

AND/OR GATES

• Determine Vo for the network

Lecture 4, Slide 16

AND/OR GATES

Vo = E - VD = 10 V - 0.7 V = 9.3 V.

Lecture 4, Slide 17

AND/OR GATES

• For the same circuit: • Try E1 =10 , E2 = 10 • Try E1 = 0, E2 = 10 • Try E1 = 0 , E2 =0

E1

E2

Lecture 4, Slide 18

AND/OR GATES

• Determine the output level for the positive logic AND gate?

Lecture 4, Slide 19

AND/OR GATES• V0 Still small – did not reach the logic 1

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SINUSOIDAL INPUTS; HALF-WAVERECTIFICATION

Lecture 4, Slide 21

SINUSOIDAL INPUTS; HALF-WAVERECTIFICATION

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SINUSOIDAL INPUTS; HALF-WAVERECTIFICATION

Lecture 4, Slide 23

Example

• Sketch the output Vo and determine the dc level of the output for the network of:

Lecture 4, Slide 24

Example

Lecture 4, Slide 25

FULL-WAVE RECTIFICATION

• Bridge Network

Lecture 4, Slide 26

Positive input part

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Negative input part

• Polarity on R did not change

Lecture 4, Slide 28

Your Assignment

• Read chapter 2, then determine the Vdc , V0 , and Vomax

Lecture 4, Slide 29

Zener Diods

• On and Off states

Lecture 4, Slide 30

simplest of Zener diode network

Lecture 4, Slide 31

simplest of Zener diode network

• Determine the state of the Zener diode by removing it from the network and calculating the voltage across the resulting open circuit.

Lecture 4, Slide 32

• Substitute the appropriate equivalent circuit and solve for the desired unknowns.

Lecture 4, Slide 33

Example

Lecture 4, Slide 34

Solution

Lecture 4, Slide 35

Solution

Lecture 4, Slide 36

Solution

Lecture 4, Slide 37

Solution