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ECE 442 Power Electronics 1
ECE 442Power Electronics
• Text:– Power Electronics: Circuits, Devices, and
Applications– Third Edition– by Muhammed H. Rashid– Pearson Prentice-Hall
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ECE 442 Power Electronics 2
Power Semiconductor Devices
• Diodes• Transistors
– Power BJTs– Power MOSFETs– Insulated-Gate BJT
• IGBT
– Static Induction Transistors
• SITs
• Thyristors– Force-Commutated– Line-Commutated– Gate Turn Off--GTO
– Reverse-Conducting• RCT
– Gate-Assisted Turn-off
• GATI
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ECE 442 Power Electronics 3
Thyristor/Triac
SCR12N3668
MT12N6346
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ECE 442 Power Electronics 4
Power Electronic Circuits
• Diode Rectifiers (AC to Fixed DC)• AC-DC Converters (Controlled Rectifiers)• AC-AC Converters (AC Voltage Controllers)• DC-DC Converters (DC Choppers)• DC-AC Converters (Inverters)• Static Switches
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ECE 442 Power Electronics 5
Single-Phase Diode Rectifier
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ECE 442 Power Electronics 6
Single-Phase Diode Rectifier
T10.5
D1
DIODE_VIRTUAL
D2
DIODE_VIRTUAL
LOAD
1kOhm
V1
120 V 60 Hz 0Deg
XSC1
A B
G
T
XSC2
A B
G
T
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ECE 442 Power Electronics 7
Source and Output Voltages
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ECE 442 Power Electronics 8
Single-Phase AC-DC Converter
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ECE 442 Power Electronics 9
Single-Phase AC-DC Converter
T20.5
Vs
120 V 60 Hz 0Deg
Rload
180 Ohm
C20.1uF
XSC1
A B
G
T
C10.1uF
R1
Key = A 18kOhm 50%
R2Key = A 18kOhm
50%
D12N3670
D22N3670
R347 Ohm
R447 Ohm
D41N4007GP
D31N4007GP
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ECE 442 Power Electronics 10
Load Voltage
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ECE 442 Power Electronics 11
Single-Phase AC-AC Converter
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ECE 442 Power Electronics 12
Single-Phase AC-AC Converter
V1
240 V 60 Hz 0Deg
D12N5444
LOAD80kOhm
1 2
0
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ECE 442 Power Electronics 13
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ECE 442 Power Electronics 14
DC-DC Converter
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ECE 442 Power Electronics 15
DC-DC Converter
V124 V
L1250uH
D1DIODE_VIRTUAL
R110 Ohm
XSC1
A B
G
T
XFG1
U1DC 1MOhm 13.044 V
+
-
Q1IRG4BC10U
C147uF
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ECE 442 Power Electronics 16
24V-12V Converter Output Voltage
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ECE 442 Power Electronics 17
Single-Phase DC-AC Converter
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ECE 442 Power Electronics 18
Single-Phase DC-AC Converter
Rload
1ohm
D3DIODE_VIRTUAL
D2DIODE_VIRTUAL
XFG1
A BT
G
XSC1
J31V 0V
J21V 0V
V124V
V224V
A BT
G
XSC2
D1DIODE_VIRTUAL
D4DIODE_VIRTUAL
J11V 0V
J41V 0V
XDA1
20
0
51
0
23
00
4
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ECE 442 Power Electronics 19
Load and Transistor Voltages
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ECE 442 Power Electronics 20
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ECE 442 Power Electronics 21
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ECE 442 Power Electronics 22
Applications of Power Electronics