Deploying SiC BJTs in an 800-V switched-mode power supply for hybrid & electric vehicles

Andrew Hopkins, Neville McNeill, William D. Drury, Andrew Atkins

Research output: Contribution to conferencePaper

Abstract

An SMPS for hybrid electric vehicle and electric vehicle applications is presented. The use of SiC BJTs in the primary-side switching circuitry is investigated. Practical deployment aspects are addressed. Particular attention is given to the design of the BJT base driver stage and a bespoke turn-on switching-aid circuit. Mathematical design calculations are not presented, but the proposed circuitry is demonstrated in a 1-kW isolated-output DC-DC converter operating from 800 V and supplying 48 V at a switching frequency of 60 kHz. Full-load efficiency was evaluated at 93.3% using a calorimeter.
LanguageEnglish
Pages1431-1438
Number of pages8
DOIs
Publication statusPublished - 30 Jun 2017
EventIEEE 26th International Symposium on Industrial Electronics -
Duration: 19 Jun 201721 Jun 2017

Conference

ConferenceIEEE 26th International Symposium on Industrial Electronics
Period19/06/1721/06/17

Fingerprint

Switched mode power supplies
Electric vehicles
Hybrid vehicles
Switching frequency
DC-DC converters
Calorimeters
Networks (circuits)

Keywords

  • automotive engineering
  • electric vehicles
  • hybrid vehicles
  • DC-DC
  • SiC BJT
  • SMPS
  • electrical

Cite this

Hopkins, A., McNeill, N., Drury, W. D., & Atkins, A. (2017). Deploying SiC BJTs in an 800-V switched-mode power supply for hybrid & electric vehicles. 1431-1438. Paper presented at IEEE 26th International Symposium on Industrial Electronics, . https://doi.org/10.1109/ISIE.2017.8001456
Hopkins, Andrew ; McNeill, Neville ; Drury, William D. ; Atkins, Andrew. / Deploying SiC BJTs in an 800-V switched-mode power supply for hybrid & electric vehicles. Paper presented at IEEE 26th International Symposium on Industrial Electronics, .8 p.
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abstract = "An SMPS for hybrid electric vehicle and electric vehicle applications is presented. The use of SiC BJTs in the primary-side switching circuitry is investigated. Practical deployment aspects are addressed. Particular attention is given to the design of the BJT base driver stage and a bespoke turn-on switching-aid circuit. Mathematical design calculations are not presented, but the proposed circuitry is demonstrated in a 1-kW isolated-output DC-DC converter operating from 800 V and supplying 48 V at a switching frequency of 60 kHz. Full-load efficiency was evaluated at 93.3{\%} using a calorimeter.",
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Hopkins, A, McNeill, N, Drury, WD & Atkins, A 2017, 'Deploying SiC BJTs in an 800-V switched-mode power supply for hybrid & electric vehicles' Paper presented at IEEE 26th International Symposium on Industrial Electronics, 19/06/17 - 21/06/17, pp. 1431-1438. https://doi.org/10.1109/ISIE.2017.8001456

Deploying SiC BJTs in an 800-V switched-mode power supply for hybrid & electric vehicles. / Hopkins, Andrew; McNeill, Neville; Drury, William D.; Atkins, Andrew.

2017. 1431-1438 Paper presented at IEEE 26th International Symposium on Industrial Electronics, .

Research output: Contribution to conferencePaper

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AU - Hopkins, Andrew

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AB - An SMPS for hybrid electric vehicle and electric vehicle applications is presented. The use of SiC BJTs in the primary-side switching circuitry is investigated. Practical deployment aspects are addressed. Particular attention is given to the design of the BJT base driver stage and a bespoke turn-on switching-aid circuit. Mathematical design calculations are not presented, but the proposed circuitry is demonstrated in a 1-kW isolated-output DC-DC converter operating from 800 V and supplying 48 V at a switching frequency of 60 kHz. Full-load efficiency was evaluated at 93.3% using a calorimeter.

KW - automotive engineering

KW - electric vehicles

KW - hybrid vehicles

KW - DC-DC

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Hopkins A, McNeill N, Drury WD, Atkins A. Deploying SiC BJTs in an 800-V switched-mode power supply for hybrid & electric vehicles. 2017. Paper presented at IEEE 26th International Symposium on Industrial Electronics, . https://doi.org/10.1109/ISIE.2017.8001456