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

Andrew Hopkins; N. McNeill; Phil Mellor

doi:10.1049/cp.2016.0277

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

Andrew Hopkins, N. McNeill, Phil Mellor

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

1 Citation (Scopus)

399 Downloads (Pure)

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.

Original language	English
Title of host publication	Proceedings of the 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
Number of pages	6
DOIs	https://doi.org/10.1049/cp.2016.0277
Publication status	Published - 10 Nov 2016

Keywords

Intrinsic diode deactivation
Drain current injection
Efficiency
Super junction
MOSFET

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10.1049/cp.2016.0277

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This is the author accepted manuscript (AAM). The final published version (version of record) is available online via IEEE at http://ieeexplore.ieee.org/document/7739465/. Please refer to any applicable terms of use of the publisher.
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title = "Drain current injection circuitry for enabling the use of super-junction MOSFETs in a 5kW bidirectional DC-DC converter",

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.",

keywords = "Intrinsic diode deactivation, Drain current injection, Efficiency, Super junction, MOSFET",

author = "Andrew Hopkins and N. McNeill and Phil Mellor",

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Drain current injection circuitry for enabling the use of super-junction MOSFETs in a 5kW bidirectional DC-DC converter. / Hopkins, Andrew; McNeill, N.; Mellor, Phil.
Proceedings of the 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016). 2016.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

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

AU - Hopkins, Andrew

AU - McNeill, N.

AU - Mellor, Phil

PY - 2016/11/10

Y1 - 2016/11/10

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 - Intrinsic diode deactivation

KW - Drain current injection

KW - Efficiency

KW - Super junction

KW - MOSFET

U2 - 10.1049/cp.2016.0277

DO - 10.1049/cp.2016.0277

M3 - Conference Contribution (Conference Proceeding)

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

ER -

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

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