Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression

An active-clamp resonant power factor correction converter with output ripple suppression is proposed and analyzed. It combines a buck power factor correction (PFC) unit and a resonant dc-dc unit by sharing one active switch. With another active-clamp switch, a recycling path is built to recover the...

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Main Authors: Keyu Cao, Xueshan Liu, Mingzhi He, Xin Meng, Qun Zhou
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9310177/
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author Keyu Cao
Xueshan Liu
Mingzhi He
Xin Meng
Qun Zhou
author_facet Keyu Cao
Xueshan Liu
Mingzhi He
Xin Meng
Qun Zhou
author_sort Keyu Cao
collection DOAJ
description An active-clamp resonant power factor correction converter with output ripple suppression is proposed and analyzed. It combines a buck power factor correction (PFC) unit and a resonant dc-dc unit by sharing one active switch. With another active-clamp switch, a recycling path is built to recover the leakage inductance energy of transformer, which improves the efficiency and the voltage stress of active switch. The effect of voltage ripple of dc link on output can be suppressed by fast voltage mode control loop. Therefore, low output current or voltage ripple can be achieved. With small voltage ripple across output of buck unit, the turn on time of active switch is almost constant in a half line cycle. Therefore, power factor correction can be achieved with inductor current of buck unit operating in discontinuous conduction mode (DCM). Finally, a 65W high power factor (PF) converter prototype for LED driver application with 91.08% peak efficiency and low output current ripple is built to verify the analytical results.
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spelling doaj.art-717847a1a4c14b199e991f972c07d6972022-12-21T22:48:39ZengIEEEIEEE Access2169-35362021-01-0195260527210.1109/ACCESS.2020.30480129310177Active-Clamp Resonant Power Factor Correction Converter With Output Ripple SuppressionKeyu Cao0https://orcid.org/0000-0001-6864-0213Xueshan Liu1https://orcid.org/0000-0002-7921-7717Mingzhi He2https://orcid.org/0000-0003-4141-4368Xin Meng3https://orcid.org/0000-0002-1980-2607Qun Zhou4https://orcid.org/0000-0002-1738-443XCollege of Electrical Engineering, Sichuan University, Chengdu, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu, ChinaAn active-clamp resonant power factor correction converter with output ripple suppression is proposed and analyzed. It combines a buck power factor correction (PFC) unit and a resonant dc-dc unit by sharing one active switch. With another active-clamp switch, a recycling path is built to recover the leakage inductance energy of transformer, which improves the efficiency and the voltage stress of active switch. The effect of voltage ripple of dc link on output can be suppressed by fast voltage mode control loop. Therefore, low output current or voltage ripple can be achieved. With small voltage ripple across output of buck unit, the turn on time of active switch is almost constant in a half line cycle. Therefore, power factor correction can be achieved with inductor current of buck unit operating in discontinuous conduction mode (DCM). Finally, a 65W high power factor (PF) converter prototype for LED driver application with 91.08% peak efficiency and low output current ripple is built to verify the analytical results.https://ieeexplore.ieee.org/document/9310177/Power factor correction (PFC)active-clamp circuitlow rippleconverterresonant
spellingShingle Keyu Cao
Xueshan Liu
Mingzhi He
Xin Meng
Qun Zhou
Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression
IEEE Access
Power factor correction (PFC)
active-clamp circuit
low ripple
converter
resonant
title Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression
title_full Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression
title_fullStr Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression
title_full_unstemmed Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression
title_short Active-Clamp Resonant Power Factor Correction Converter With Output Ripple Suppression
title_sort active clamp resonant power factor correction converter with output ripple suppression
topic Power factor correction (PFC)
active-clamp circuit
low ripple
converter
resonant
url https://ieeexplore.ieee.org/document/9310177/
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AT xueshanliu activeclampresonantpowerfactorcorrectionconverterwithoutputripplesuppression
AT mingzhihe activeclampresonantpowerfactorcorrectionconverterwithoutputripplesuppression
AT xinmeng activeclampresonantpowerfactorcorrectionconverterwithoutputripplesuppression
AT qunzhou activeclampresonantpowerfactorcorrectionconverterwithoutputripplesuppression