1 / 25

EEL 4242 POWER ELECTRONICS

EEL 4242 POWER ELECTRONICS . DIODE RECTIFIERS . Single-Phase Half-wave Rectifier . Figure 3.1 . Input Waveforms . Figure 3.2 . Half-wave Rectifier with RL Load . Figure 3.3 . Full-Wave Rectifier (center-tapped) . Figure 3.5 . Full-Wave Bridge Rectifier . Figure 3.6 .

jon
Télécharger la présentation

EEL 4242 POWER ELECTRONICS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EEL 4242POWER ELECTRONICS DIODE RECTIFIERS

  2. Single-Phase Half-wave Rectifier Figure 3.1

  3. Input Waveforms Figure 3.2

  4. Half-wave Rectifier with RL Load Figure 3.3

  5. Full-Wave Rectifier (center-tapped) Figure 3.5

  6. Full-Wave Bridge Rectifier Figure 3.6

  7. Bridge Rectifier (motor load) Figure 3.7

  8. Bridge Rectifier (RL load) Figure 3.8

  9. Bridge Rectifier (RL load) • Case 1: Continuous conduction, Io >0 • Case 2: Discontinuous conduction, Io =0

  10. Bridge Rectifier (RL load) • Case 1: Continuous conduction, Io >0 • Case 2: Discontinuous conduction, Io =0

  11. Boundary of continuous and discontinuous (single-phase) Figure 3.9

  12. Multiphase Rectifiers Figure 3.12

  13. Three-Phase Bridge Rectifier Figure 3.13

  14. Waveforms and Conduction Times Figure 3.14

  15. 3-Phase Bridge Rectifier (RL Load) Figure 3.15

  16. Three-Phase Bridge Rectifier (RL load) • Case 1: Continuous conduction, Io >0 • Case 2: Discontinuous conduction, Io =0

  17. Three-Phase Bridge (RL load) • Case 1: Continuous conduction, Io >0 • Case 2: Discontinuous conduction, Io =0

  18. Boundary of continuous and discontinuous (three-phase) Figure 3.16

  19. DC Filters Figure 3.18

  20. AC Filters Figure 3.19

  21. Single-Phase Rectifier with C-Filter Figure 3.22

  22. Single-Phase Rectifier with C-Filter Figure 3.22

  23. Output Voltage with C-Filter Figure 3.26

  24. Effects of Source Inductances Figure 3.27

  25. Summary • Diode rectifiers convert an ac voltage to a dc voltage. • The output voltage contain ripples which can be removed by filters. • Depending on time constant of the load, the load current may be discontinuous. • Line inductances cause overlap and reduce the effective dc output voltage. • What was the major idea? • What was the muddiest idea?

More Related