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Lecture 5
Introduction to Electronics Introduction to Electronics
Rabie A. [email protected]
http://www.rabieramadan.org/classes/2014/electronics/
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Lecture 4, Slide 2
Diode Applications
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Lecture 4, Slide 3
SERIES DIODE CONFIGURATIONSWITH DC INPUTS
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Lecture 4, Slide 4
Diode in Reverse State
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Lecture 4, Slide 5
Example
• For the series diode configuration, determine VD, VR, and ID
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Lecture 4, Slide 6
Example 2
• If the diode in reverse order , determine VD, VR, and ID
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Lecture 4, Slide 7
Example 3
• For the series diode configuration, determine VD, VR, and ID.
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Lecture 4, Slide 8
Example 4
• Determine Vo and ID for the series circuit?
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Lecture 4, Slide 9
Example 5
• Determine ID, VD2, and Vo for the circuit
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Lecture 4, Slide 10
Example 5
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Lecture 4, Slide 11
Example 6
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Lecture 4, Slide 12
Example 6
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Lecture 4, Slide 13
Example 7
• Determine the current I for the network?
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Lecture 4, Slide 14
Example 7
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Lecture 4, Slide 15
AND/OR GATES
• Determine Vo for the network
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Lecture 4, Slide 16
AND/OR GATES
Vo = E - VD = 10 V - 0.7 V = 9.3 V.
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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
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Lecture 4, Slide 18
AND/OR GATES
• Determine the output level for the positive logic AND gate?
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Lecture 4, Slide 19
AND/OR GATES• V0 Still small – did not reach the logic 1
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Lecture 4, Slide 20
SINUSOIDAL INPUTS; HALF-WAVERECTIFICATION
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Lecture 4, Slide 21
SINUSOIDAL INPUTS; HALF-WAVERECTIFICATION
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Lecture 4, Slide 22
SINUSOIDAL INPUTS; HALF-WAVERECTIFICATION
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Lecture 4, Slide 23
Example
• Sketch the output Vo and determine the dc level of the output for the network of:
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Lecture 4, Slide 24
Example
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Lecture 4, Slide 25
FULL-WAVE RECTIFICATION
• Bridge Network
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Lecture 4, Slide 26
Positive input part
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Lecture 4, Slide 27
Negative input part
• Polarity on R did not change
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Lecture 4, Slide 28
Your Assignment
• Read chapter 2, then determine the Vdc , V0 , and Vomax
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Lecture 4, Slide 29
Zener Diods
• On and Off states
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Lecture 4, Slide 30
simplest of Zener diode network
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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.
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Lecture 4, Slide 32
• Substitute the appropriate equivalent circuit and solve for the desired unknowns.
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Lecture 4, Slide 33
Example
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Lecture 4, Slide 34
Solution
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Lecture 4, Slide 35
Solution
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Lecture 4, Slide 36
Solution
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Lecture 4, Slide 37
Solution