EEL 4242 POWER ELECTRONICS

1
EEL 4242POWER ELECTRONICS

• INTRODUCTION TO POWER ELECTRONICS

2
Relationship of Power Electronics
Figure 1.1
3
Examples of Some Applications
Table 1.1
4
History of Power Electronics
Figure 1.2
5
Types of Power Devices
Figure 1.3
6
General Purposes Diodes
Figure 1.4
7
Thyristors
Figure 1.5
8
GTOs
Figure 1.6
9
Power Ratings of Devices
Figure 1.7
10
Ratings of Power Devices
Table 1.2
11
Devices Symbols and Characteristics
Table 1.3
12
Devices Symbols and Characteristics
Table 1.3
13
Applications of Power Devices
Figure 1.8
14
Control Characteristics of Devices
Figure 1.9
15
Control Characteristics of Devices
Figure 1.9
16
Switching Characteristics
Table 1.4
17
Ideal Characteristics
Ideal Characteristics
18
Voltage and Current Waveforms
Figure 1.10
19
Diode Rectifiers
Figure 1.11
20
Ac-dc Converter
Figure 1.12
21
Ac-ac Converter
Figure 1.13
22
dc-dc Converter
Figure 1.14
23
dc-ac Converter
Figure 1.15
24
UPS System
Figure 1.16
25
RMS Values of Waveforms
Figure 1.17
26
RMS Values of Waveforms
Figure 1.17
27
Power Converter System
Figure 1.18
28
Drive System
29
Smart Power System
Figure 1.19
30
Summary

• Power electronics uses low power electronics
  (ICs), control, and switching power devices for
  power converter and/or processing from one form
  to another.

• The characteristics of the power devices play a
  major role in the speed and effectiveness of the
  power conversion.

• What was the major idea?

• What was the muddiest idea?