An FPGA-based aperiodic modulation strategy for EMI suppression in quasi-Z-source DC-DC converters

Saad Ul Hasan; Graham E. Town

doi:10.1109/ISCAS.2017.8050509

An FPGA-based aperiodic modulation strategy for EMI suppression in quasi-Z-source DC-DC converters

Saad Ul Hasan, Graham E. Town

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

6 Citations (Scopus)

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
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	https://doi.org/10.1109/ISCAS.2017.8050509
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
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)

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10.1109/ISCAS.2017.8050509

Cite this

Hasan, S. U., & Town, G. E. (2017). An FPGA-based aperiodic modulation strategy for EMI suppression in quasi-Z-source DC-DC converters. In IEEE International Symposium on Circuits and Systems (ISCAS) 2017 : proceedings: From Dreams to Innovation (pp. 1-4). Article 8050509 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ISCAS.2017.8050509

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Hasan, SU & Town, GE 2017, An FPGA-based aperiodic modulation strategy for EMI suppression in quasi-Z-source DC-DC converters. in IEEE International Symposium on Circuits and Systems (ISCAS) 2017 : proceedings: From Dreams to Innovation., 8050509, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-4, 50th IEEE International Symposium on Circuits and Systems, ISCAS 2017, Baltimore, United States, 28/05/17. https://doi.org/10.1109/ISCAS.2017.8050509

An FPGA-based aperiodic modulation strategy for EMI suppression in quasi-Z-source DC-DC converters. / Hasan, Saad Ul; Town, Graham E.
IEEE International Symposium on Circuits and Systems (ISCAS) 2017 : proceedings: From Dreams to Innovation. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2017. p. 1-4 8050509.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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AU - Town, Graham E.

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N2 - 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.

AB - 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.

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KW - electromagnetic interference

KW - spread spectrum

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An FPGA-based aperiodic modulation strategy for EMI suppression in quasi-Z-source DC-DC converters

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