The Efficient Deployment of Silicon Super-Junction MOSFETs as Synchronous Rectifiers

Philip H Anthony; J N McNeill

The Efficient Deployment of Silicon Super-Junction MOSFETs as Synchronous Rectifiers

Philip H Anthony
, J N McNeill

Electrical Energy Management

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

Abstract

Charge-compensated or “Super-junction” MOSFETs exhibit low on-state resistances and low switching losses. However, the reverse recovery behaviour of their intrinsic diodes and their output capacitance characteristics make their deployment as synchronous rectifiers challenging. A simple auxiliary circuit is proposed to address these issues, by reversing the direction of current flow in the MOSFET channel at turn-off, thereby deactivating the intrinsic antiparallel diode and partially charging the MOSFET output capacitance. The proposed technique is verified on a 400 V, 1 kW buck converter.

Original language	English
Title of host publication	7th IET Power Electronics, Machines and Drives Conference (PEMD 2014)
Publication status	Published - 2014

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@inproceedings{1321b2f940eb46bb9e5b49c164b7ae9b,

title = "The Efficient Deployment of Silicon Super-Junction MOSFETs as Synchronous Rectifiers",

abstract = "Charge-compensated or “Super-junction” MOSFETs exhibit low on-state resistances and low switching losses. However, the reverse recovery behaviour of their intrinsic diodes and their output capacitance characteristics make their deployment as synchronous rectifiers challenging. A simple auxiliary circuit is proposed to address these issues, by reversing the direction of current flow in the MOSFET channel at turn-off, thereby deactivating the intrinsic antiparallel diode and partially charging the MOSFET output capacitance. The proposed technique is verified on a 400 V, 1 kW buck converter.",

author = "Anthony, \{Philip H\} and McNeill, \{J N\}",

year = "2014",

language = "English",

booktitle = "7th IET Power Electronics, Machines and Drives Conference (PEMD 2014)",

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T1 - The Efficient Deployment of Silicon Super-Junction MOSFETs as Synchronous Rectifiers

AU - Anthony, Philip H

AU - McNeill, J N

PY - 2014

Y1 - 2014

N2 - Charge-compensated or “Super-junction” MOSFETs exhibit low on-state resistances and low switching losses. However, the reverse recovery behaviour of their intrinsic diodes and their output capacitance characteristics make their deployment as synchronous rectifiers challenging. A simple auxiliary circuit is proposed to address these issues, by reversing the direction of current flow in the MOSFET channel at turn-off, thereby deactivating the intrinsic antiparallel diode and partially charging the MOSFET output capacitance. The proposed technique is verified on a 400 V, 1 kW buck converter.

AB - Charge-compensated or “Super-junction” MOSFETs exhibit low on-state resistances and low switching losses. However, the reverse recovery behaviour of their intrinsic diodes and their output capacitance characteristics make their deployment as synchronous rectifiers challenging. A simple auxiliary circuit is proposed to address these issues, by reversing the direction of current flow in the MOSFET channel at turn-off, thereby deactivating the intrinsic antiparallel diode and partially charging the MOSFET output capacitance. The proposed technique is verified on a 400 V, 1 kW buck converter.

M3 - Conference Contribution (Conference Proceeding)

BT - 7th IET Power Electronics, Machines and Drives Conference (PEMD 2014)

ER -

The Efficient Deployment of Silicon Super-Junction MOSFETs as Synchronous Rectifiers

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