© Innovators. ## Construction of S ilicon Controlled Rectifier Static and Dynamic Characteristics...
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Transcript of © Innovators. ## Construction of S ilicon Controlled Rectifier Static and Dynamic Characteristics...
© Innovators
THYRSTO
R
SCR#
Silicon Controlled Rectifier
Construction of Silicon Controlled Rectifier
Static and Dynamic Characteristics of SCR.
What specification/Rating require to select SCR’s
What is Two-Transistor Analogy
Gate Characteristics
How to Trigger the SCR
Protection
What is Turn Off(GTO) Thyristor.
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Learning Objectives
1 What is Silicon Controlled Rectifier
© Innovators
© Innovators
V
I
Forword Leakage Current
I g 0 = 0
Forword Conduction Mode (On State)
Forword BlockingMode (Off State)
Transition State
Forword on state volatage drop
Latching Current
Holding Current
A K
G
A K
G
© Innovators
V
I
Forword Leakage Current
I g 0 = 0
Forword Conduction Mode (On State)
Forword BlockingMode (Off State)
Transition State
Forword on state volatage drop
Latching Current
Holding Current
A K
G
II1 > II0II2 > II1
II3 > II2
© Innovators
V
I
Forword Leakage Current
I g 0 = 0
Forword Conduction Mode (On State)
Forword BlockingMode (Off State)
Transition State
Forword on state volatage drop
Latching Current
Holding Current
A K
G
Reverse BlockingMode (Off State)
VBR
Reverse Leakage Current
VBO