Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter

Andrew Hopkins, Neville McNeill, Philip Mellor

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

The paper assesses the potential of employing super-junction MOSFETs in a high efficiency and low cost bidirectional DCDC converter for application in electric vehicle systems. Super-junction MOSFETs have a very low conduction loss, however, their poor intrinsic diode recovery behaviour and high output capacitances means that switching losses can be high in voltage source converters. A drain current injection technique is presented that can be used to mitigate the poor switching characteristics and thus realise excellent power conversion efficiencies. Experimental results are given for a circuit operating at 400V, 5kW and 25kHz and the means of achieving a power conversion efficiency >99% is outlined.
LanguageEnglish
Title of host publication8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
Place of PublicationStevenage
DOIs
Publication statusPublished - 19 Apr 2016
Externally publishedYes
Event8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016 - Hilton Hotel, Glasgow, United Kingdom
Duration: 19 Apr 201621 Apr 2016

Conference

Conference8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016
CountryUnited Kingdom
CityGlasgow
Period19/04/1621/04/16

Fingerprint

Drain current
DC-DC converters
Conversion efficiency
Electric vehicles
Diodes
Capacitance
Recovery
Networks (circuits)
Electric potential
Costs

Keywords

  • MOSFET
  • DC-DC power convertors
  • electric vehicles

Cite this

Hopkins, A., McNeill, N., & Mellor, P. (2016). Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter. In 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016) Stevenage. https://doi.org/10.1049/cp.2016.0277
Hopkins, Andrew ; McNeill, Neville ; Mellor, Philip. / Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter. 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016). Stevenage, 2016.
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abstract = "The paper assesses the potential of employing super-junction MOSFETs in a high efficiency and low cost bidirectional DCDC converter for application in electric vehicle systems. Super-junction MOSFETs have a very low conduction loss, however, their poor intrinsic diode recovery behaviour and high output capacitances means that switching losses can be high in voltage source converters. A drain current injection technique is presented that can be used to mitigate the poor switching characteristics and thus realise excellent power conversion efficiencies. Experimental results are given for a circuit operating at 400V, 5kW and 25kHz and the means of achieving a power conversion efficiency >99{\%} is outlined.",
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Hopkins, A, McNeill, N & Mellor, P 2016, Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter. in 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016). Stevenage, 8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016, Glasgow, United Kingdom, 19/04/16. https://doi.org/10.1049/cp.2016.0277

Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter. / Hopkins, Andrew; McNeill, Neville; Mellor, Philip.

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016). Stevenage, 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter

AU - Hopkins, Andrew

AU - McNeill, Neville

AU - Mellor, Philip

PY - 2016/4/19

Y1 - 2016/4/19

N2 - The paper assesses the potential of employing super-junction MOSFETs in a high efficiency and low cost bidirectional DCDC converter for application in electric vehicle systems. Super-junction MOSFETs have a very low conduction loss, however, their poor intrinsic diode recovery behaviour and high output capacitances means that switching losses can be high in voltage source converters. A drain current injection technique is presented that can be used to mitigate the poor switching characteristics and thus realise excellent power conversion efficiencies. Experimental results are given for a circuit operating at 400V, 5kW and 25kHz and the means of achieving a power conversion efficiency >99% is outlined.

AB - The paper assesses the potential of employing super-junction MOSFETs in a high efficiency and low cost bidirectional DCDC converter for application in electric vehicle systems. Super-junction MOSFETs have a very low conduction loss, however, their poor intrinsic diode recovery behaviour and high output capacitances means that switching losses can be high in voltage source converters. A drain current injection technique is presented that can be used to mitigate the poor switching characteristics and thus realise excellent power conversion efficiencies. Experimental results are given for a circuit operating at 400V, 5kW and 25kHz and the means of achieving a power conversion efficiency >99% is outlined.

KW - MOSFET

KW - DC-DC power convertors

KW - electric vehicles

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U2 - 10.1049/cp.2016.0277

DO - 10.1049/cp.2016.0277

M3 - Conference contribution book

SN - 978-1-78561-188-9

BT - 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

CY - Stevenage

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Hopkins A, McNeill N, Mellor P. Drain current injection circuitry for enabling the deployment of super-junction MOSFETs in a 5kW bidirectional DC-DC converter. In 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016). Stevenage. 2016 https://doi.org/10.1049/cp.2016.0277