A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply

Jae Il Baek; Jae Kuk Kim; Jae Bum Lee; Moo Hyun Park; Gun Woo Moon

doi:10.23919/IPEC.2018.8507766

A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply

Jae Il Baek, Jae Kuk Kim, Jae Bum Lee, Moo Hyun Park, Gun Woo Moon

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

In the standby stage of the server power supply, the flyback converter has been widely used due to its simple structure and low cost. However, it suffers from high voltage stress on the primary switch and large transformer size. Thus, the flyback converter in the standby stage degrades the efficiency and power density of the server power supply. To relieve these drawbacks, this paper presents a new standby structure where the standby stage is integrated with the boost PFC stage. In the proposed standby structure, since the primary side of the flyback converter is integrated into the boost PFC stage, the proposed standby structure can eliminate high voltage stress and large transformer. Furthermore, the proposed standby structure helps the boost PFC stage to achieve soft switching operation. Therefore, the proposed standby structure can improve the efficiency and power density of the server power supply. The validity of the proposed standby structure is confirmed by a prototype with 90-264Vrms AC line, 750W main output, and 12V/2A standby output.

Original language	English
Title of host publication	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3100-3106
Number of pages	7
ISBN (Electronic)	9784886864055
DOIs	https://doi.org/10.23919/IPEC.2018.8507766
State	Published - 22 Oct 2018
Event	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan Duration: 20 May 2018 → 24 May 2018

Publication series

Name	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Conference

Conference	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Country/Territory	Japan
City	Niigata
Period	20/05/18 → 24/05/18

Bibliographical note

Publisher Copyright:
© 2018 IEEJ Industry Application Society.

Keywords

Flyback converter
high efficiency
high power density
standby stage

Access to Document

10.23919/IPEC.2018.8507766

Cite this

Baek, J. I., Kim, J. K., Lee, J. B., Park, M. H., & Moon, G. W. (2018). A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply. In 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 (pp. 3100-3106). Article 8507766 (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/IPEC.2018.8507766

Baek, Jae Il ; Kim, Jae Kuk ; Lee, Jae Bum et al. / A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply. 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 3100-3106 (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018).

@inproceedings{da00d8ed08fc48a1bffae7fd703a26fe,

title = "A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply",

abstract = "In the standby stage of the server power supply, the flyback converter has been widely used due to its simple structure and low cost. However, it suffers from high voltage stress on the primary switch and large transformer size. Thus, the flyback converter in the standby stage degrades the efficiency and power density of the server power supply. To relieve these drawbacks, this paper presents a new standby structure where the standby stage is integrated with the boost PFC stage. In the proposed standby structure, since the primary side of the flyback converter is integrated into the boost PFC stage, the proposed standby structure can eliminate high voltage stress and large transformer. Furthermore, the proposed standby structure helps the boost PFC stage to achieve soft switching operation. Therefore, the proposed standby structure can improve the efficiency and power density of the server power supply. The validity of the proposed standby structure is confirmed by a prototype with 90-264Vrms AC line, 750W main output, and 12V/2A standby output.",

keywords = "Flyback converter, high efficiency, high power density, standby stage",

author = "Baek, {Jae Il} and Kim, {Jae Kuk} and Lee, {Jae Bum} and Park, {Moo Hyun} and Moon, {Gun Woo}",

note = "Publisher Copyright: {\textcopyright} 2018 IEEJ Industry Application Society.; 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 ; Conference date: 20-05-2018 Through 24-05-2018",

year = "2018",

month = oct,

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doi = "10.23919/IPEC.2018.8507766",

language = "English",

series = "2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018",

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Baek, JI, Kim, JK, Lee, JB, Park, MH & Moon, GW 2018, A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply. in 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018., 8507766, 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, Institute of Electrical and Electronics Engineers Inc., pp. 3100-3106, 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, Niigata, Japan, 20/05/18. https://doi.org/10.23919/IPEC.2018.8507766

A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply. / Baek, Jae Il; Kim, Jae Kuk; Lee, Jae Bum et al.
2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 3100-3106 8507766 (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Baek, Jae Il

AU - Kim, Jae Kuk

AU - Lee, Jae Bum

AU - Park, Moo Hyun

AU - Moon, Gun Woo

PY - 2018/10/22

Y1 - 2018/10/22

N2 - In the standby stage of the server power supply, the flyback converter has been widely used due to its simple structure and low cost. However, it suffers from high voltage stress on the primary switch and large transformer size. Thus, the flyback converter in the standby stage degrades the efficiency and power density of the server power supply. To relieve these drawbacks, this paper presents a new standby structure where the standby stage is integrated with the boost PFC stage. In the proposed standby structure, since the primary side of the flyback converter is integrated into the boost PFC stage, the proposed standby structure can eliminate high voltage stress and large transformer. Furthermore, the proposed standby structure helps the boost PFC stage to achieve soft switching operation. Therefore, the proposed standby structure can improve the efficiency and power density of the server power supply. The validity of the proposed standby structure is confirmed by a prototype with 90-264Vrms AC line, 750W main output, and 12V/2A standby output.

AB - In the standby stage of the server power supply, the flyback converter has been widely used due to its simple structure and low cost. However, it suffers from high voltage stress on the primary switch and large transformer size. Thus, the flyback converter in the standby stage degrades the efficiency and power density of the server power supply. To relieve these drawbacks, this paper presents a new standby structure where the standby stage is integrated with the boost PFC stage. In the proposed standby structure, since the primary side of the flyback converter is integrated into the boost PFC stage, the proposed standby structure can eliminate high voltage stress and large transformer. Furthermore, the proposed standby structure helps the boost PFC stage to achieve soft switching operation. Therefore, the proposed standby structure can improve the efficiency and power density of the server power supply. The validity of the proposed standby structure is confirmed by a prototype with 90-264Vrms AC line, 750W main output, and 12V/2A standby output.

KW - Flyback converter

KW - high efficiency

KW - high power density

KW - standby stage

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M3 - Conference contribution

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BT - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Y2 - 20 May 2018 through 24 May 2018

ER -

Baek JI, Kim JK, Lee JB, Park MH, Moon GW. A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply. In 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 3100-3106. 8507766. (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018). doi: 10.23919/IPEC.2018.8507766

A New Standby Structure Integrated with Boost PFC Converter for Server Power Supply

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Bibliographical note

Keywords

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