| Form of studies |
Master |
| Title of the study programm |
Electronics |
| Title in original language |
Elektromagnētisko traucējumu samazināšana jaudas koeficienta korektoros robežrežīmā ar izklaidēto spektru. |
| Title in English |
Suppression of conducted EMI in critical conduction mode PFC converters using spread spectrum. |
| Department |
Institute of Microwave Engineering and Electronics |
| Scientific advisor |
Deniss Stepins |
| Reviewer |
Guntars Balodis |
| Abstract |
SUPPRESSION OF CONDUCTED EMI IN CRITICAL CONDUCTION MODE PFC CONVERTERS USING SPREAD SPECTRUM TECHNIQUE
This thesis deals with the use of spread spectrum technique in critical conduction mode (CrCM) power factor correction (PFC) converters to reduce conducted electromagnetic interference (EMI). The effect of switching frequency modulation (SFM) (as one of the possible spread spectrum techniques) on the total harmonic distortion (THD), power factor and EMI attenuation is studied in details in the thesis. The CrCM PFC converter is studied using computer simulation as well as analytically. Some advices for more effective use of the SFM in CrCM PFC are proposed.
The thesis is written in English and consists of 59 pages, 30 figures, 4 tables, 1 annex, 28 references. |
| Keywords |
Power Factor correction, spread spectrum technique, Electromagnetic interference, distortion, frequency modulation |
| Keywords in English |
Power Factor correction, spread spectrum technique, Electromagnetic interference, distortion, frequency modulation |
| Language |
eng |
| Year |
2018 |
| Date and time of uploading |
10.12.2018 15:01:26 |
