Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/588285
Title: Design of GaN-Based MHz Totem-Pole PFC Rectifier
Authors: Zhengyang Liu;Fred C. Lee;Qiang Li;Yuchen Yang
subject: gallium nitride (GaN)|interleaving|MHz|zero-voltage switching (ZVS)|Critical mode (CRM)|totem-pole power factor correction (PFC)
Year: 2016
Publisher: IEEE
Abstract: The totem-pole bridgeless power factor correction (PFC) rectifier has recently been recognized as a promising front-end candidate for applications like servers and telecommunication power supplies. This paper begins with a discussion of the advantages of using emerging high-voltage gallium-nitride (GaN) devices in totem-pole PFC rectifiers rather than traditional PFC rectifiers. The critical-mode operation is used in the totem-pole PFC rectifier in order to achieve both high frequency and high efficiency. Then, several high-frequency issues and detailed design considerations are introduced, including extending zero-voltage-switching operation for the entire line-cycle, a variable on-time strategy for zero-crossing distortion suppression, and interleaving control for ripple current cancellation. The volume reduction of differential-mode electromagnetic interference filters is also presented, which benefits greatly from MHz high-frequency operation and multiphase interleaving. Finally, a dual-phase interleaved GaN-based MHz totem-pole PFC rectifier is demonstrated with 99% peak efficiency and 220 W/in $^{\mathrm {{3}}}$ power density.
URI: http://localhost/handle/Hannan/167861
http://localhost/handle/Hannan/588285
ISSN: 2168-6777
2168-6785
volume: 4
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7475884.pdf4.46 MBAdobe PDFThumbnail
Preview File
Title: Design of GaN-Based MHz Totem-Pole PFC Rectifier
Authors: Zhengyang Liu;Fred C. Lee;Qiang Li;Yuchen Yang
subject: gallium nitride (GaN)|interleaving|MHz|zero-voltage switching (ZVS)|Critical mode (CRM)|totem-pole power factor correction (PFC)
Year: 2016
Publisher: IEEE
Abstract: The totem-pole bridgeless power factor correction (PFC) rectifier has recently been recognized as a promising front-end candidate for applications like servers and telecommunication power supplies. This paper begins with a discussion of the advantages of using emerging high-voltage gallium-nitride (GaN) devices in totem-pole PFC rectifiers rather than traditional PFC rectifiers. The critical-mode operation is used in the totem-pole PFC rectifier in order to achieve both high frequency and high efficiency. Then, several high-frequency issues and detailed design considerations are introduced, including extending zero-voltage-switching operation for the entire line-cycle, a variable on-time strategy for zero-crossing distortion suppression, and interleaving control for ripple current cancellation. The volume reduction of differential-mode electromagnetic interference filters is also presented, which benefits greatly from MHz high-frequency operation and multiphase interleaving. Finally, a dual-phase interleaved GaN-based MHz totem-pole PFC rectifier is demonstrated with 99% peak efficiency and 220 W/in $^{\mathrm {{3}}}$ power density.
URI: http://localhost/handle/Hannan/167861
http://localhost/handle/Hannan/588285
ISSN: 2168-6777
2168-6785
volume: 4
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7475884.pdf4.46 MBAdobe PDFThumbnail
Preview File
Title: Design of GaN-Based MHz Totem-Pole PFC Rectifier
Authors: Zhengyang Liu;Fred C. Lee;Qiang Li;Yuchen Yang
subject: gallium nitride (GaN)|interleaving|MHz|zero-voltage switching (ZVS)|Critical mode (CRM)|totem-pole power factor correction (PFC)
Year: 2016
Publisher: IEEE
Abstract: The totem-pole bridgeless power factor correction (PFC) rectifier has recently been recognized as a promising front-end candidate for applications like servers and telecommunication power supplies. This paper begins with a discussion of the advantages of using emerging high-voltage gallium-nitride (GaN) devices in totem-pole PFC rectifiers rather than traditional PFC rectifiers. The critical-mode operation is used in the totem-pole PFC rectifier in order to achieve both high frequency and high efficiency. Then, several high-frequency issues and detailed design considerations are introduced, including extending zero-voltage-switching operation for the entire line-cycle, a variable on-time strategy for zero-crossing distortion suppression, and interleaving control for ripple current cancellation. The volume reduction of differential-mode electromagnetic interference filters is also presented, which benefits greatly from MHz high-frequency operation and multiphase interleaving. Finally, a dual-phase interleaved GaN-based MHz totem-pole PFC rectifier is demonstrated with 99% peak efficiency and 220 W/in $^{\mathrm {{3}}}$ power density.
URI: http://localhost/handle/Hannan/167861
http://localhost/handle/Hannan/588285
ISSN: 2168-6777
2168-6785
volume: 4
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7475884.pdf4.46 MBAdobe PDFThumbnail
Preview File