Abstract
The adoption of wide-bandgap (WBG) switching devices in switching power converters provides several advantages, such as high power density, compact size and high efficiency, however a potential side-effect is the increased electromagnetic interference (EMI) due to high-speed switching transients. This paper presents an aperiodic modulation technique to suppress EMI in H-bridge based switched-mode power converters. A generic framework for the generation of an aperiodic carrier signal is demonstrated which can be extended and flexibly applied in other power converters. The aperiodic modulation strategy is programmed in a MATLAB Simulink environment and implemented using a field-programmable gate array (FPGA). The efficacy of the proposed aperiodic modulation was tested on a quasi-Z-source DC-DC converter, and a 10 dB suppression in the peak conducted EMI emissions was demonstrated.
Original language | English |
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Title of host publication | IEEE International Symposium on Circuits and Systems (ISCAS) 2017 : proceedings |
Subtitle of host publication | From Dreams to Innovation |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1-4 |
Number of pages | 4 |
ISBN (Electronic) | 9781467368520 |
DOIs | |
Publication status | Published - 25 Sept 2017 |
Event | 50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 - Baltimore, United States Duration: 28 May 2017 → 31 May 2017 |
Conference
Conference | 50th IEEE International Symposium on Circuits and Systems, ISCAS 2017 |
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Country/Territory | United States |
City | Baltimore |
Period | 28/05/17 → 31/05/17 |
Keywords
- DC-DC Converters
- electromagnetic compatibility
- electromagnetic interference
- spread spectrum
- wide-bandgap (WBG)