Ultrafast Transient Response in 48 V Automotive VRMs: An Auxiliary-Assisted Adaptive Slew-Rate Control Scheme
This article presents an auxiliary-assisted hybrid dc-dc converter for 48 V automotive voltage regulator modules (VRMs) that enable adaptive inductor-current slew-rate control for ultrafast transient response. The main stage, a 4:1 dual-inductor hybrid (DIH) dc-dc converter, delivers the dc load pow...
Gespeichert in:
| Veröffentlicht in: | IEEE transactions on industrial electronics (1982) 2024-10, p.1-11 |
|---|---|
| Hauptverfasser: | , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 11 |
|---|---|
| container_issue | |
| container_start_page | 1 |
| container_title | IEEE transactions on industrial electronics (1982) |
| container_volume | |
| creator | Khan, Nameer Cobani, Orest Robitaille, Tristan Pique, Gerard Villar Pigott, John Bergveld, Henk Jan El Sherif, Alaa Trescases, Olivier |
| description | This article presents an auxiliary-assisted hybrid dc-dc converter for 48 V automotive voltage regulator modules (VRMs) that enable adaptive inductor-current slew-rate control for ultrafast transient response. The main stage, a 4:1 dual-inductor hybrid (DIH) dc-dc converter, delivers the dc load power, while the output voltage is regulated by a GaN-based auxiliary-buck stage that is accoupled by a buffer capacitor. The main stage regulates the output of the ac-coupled auxiliary stage using an average-current-mode-control (ACMC) scheme to achieve adaptive control of the auxiliary-inductor-current slew rate. The auxiliary ac-coupled buck (ACB) converter regulates the output voltage based on an output-capacitor current-based hysteretic-current-mode-control (HCMC) scheme. An adaptive-voltage-positioning (AVP) scheme is proposed for the auxiliary capacitor, which preemptively positions the ACB output voltage for improved transient response. A small-signal model of the auxiliary-assisted converter is presented for stability analysis and validated with simulation results. A 40 W proof-of-concept prototype was fabricated to demonstrate the feasibility of the adaptive slew-rate control technique and AVP scheme. The prototype achieves a peak efficiency of 90.6% with an output capacitance of 500 μF and an auxiliary capacitance of 22 μF, while maintaining the output voltage deviation within 50 mV. |
| doi_str_mv | 10.1109/TIE.2024.3472216 |
| format | Article |
| fullrecord | <record><control><sourceid>crossref_RIE</sourceid><recordid>TN_cdi_ieee_primary_10729211</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>10729211</ieee_id><sourcerecordid>10_1109_TIE_2024_3472216</sourcerecordid><originalsourceid>FETCH-LOGICAL-c147t-45f2b882f489d36b18d3c9cdb140f24d28b8466ccb9561640011e9cbe98a2d343</originalsourceid><addsrcrecordid>eNpNkEtPwzAQhC0EEqVw58DBfyDF6ziOzS2qClQqQkof18hxNsIojyo2r39PSnvgtNJoZjT7EXILbAbA9P1muZhxxsUsFinnIM_IBJIkjbQW6pxMGE9VxJiQl-TK-3fGQCSQTEi7bcJgauMD3Qym8w67QHP0-77zSF1HhaI7mn2Evu2D-0S6y1_8A826Uft2jTPDT5R573zAimaV2f-Z1g1-RbkJSOd9F4a-oWv7hi1ek4vaNB5vTndKto-Lzfw5Wr0-LefZKrIg0hCJpOalUrwWSlexLEFVsdW2KkGwmouKq1IJKa0tdSJBivEbQG1L1MrwKhbxlLBjrx167wesi_3g2nFrAaw44CpGXMUBV3HCNUbujhGHiP_sKdccIP4FrQdmeg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Ultrafast Transient Response in 48 V Automotive VRMs: An Auxiliary-Assisted Adaptive Slew-Rate Control Scheme</title><source>IEEE Xplore</source><creator>Khan, Nameer ; Cobani, Orest ; Robitaille, Tristan ; Pique, Gerard Villar ; Pigott, John ; Bergveld, Henk Jan ; El Sherif, Alaa ; Trescases, Olivier</creator><creatorcontrib>Khan, Nameer ; Cobani, Orest ; Robitaille, Tristan ; Pique, Gerard Villar ; Pigott, John ; Bergveld, Henk Jan ; El Sherif, Alaa ; Trescases, Olivier</creatorcontrib><description>This article presents an auxiliary-assisted hybrid dc-dc converter for 48 V automotive voltage regulator modules (VRMs) that enable adaptive inductor-current slew-rate control for ultrafast transient response. The main stage, a 4:1 dual-inductor hybrid (DIH) dc-dc converter, delivers the dc load power, while the output voltage is regulated by a GaN-based auxiliary-buck stage that is accoupled by a buffer capacitor. The main stage regulates the output of the ac-coupled auxiliary stage using an average-current-mode-control (ACMC) scheme to achieve adaptive control of the auxiliary-inductor-current slew rate. The auxiliary ac-coupled buck (ACB) converter regulates the output voltage based on an output-capacitor current-based hysteretic-current-mode-control (HCMC) scheme. An adaptive-voltage-positioning (AVP) scheme is proposed for the auxiliary capacitor, which preemptively positions the ACB output voltage for improved transient response. A small-signal model of the auxiliary-assisted converter is presented for stability analysis and validated with simulation results. A 40 W proof-of-concept prototype was fabricated to demonstrate the feasibility of the adaptive slew-rate control technique and AVP scheme. The prototype achieves a peak efficiency of 90.6% with an output capacitance of 500 μF and an auxiliary capacitance of 22 μF, while maintaining the output voltage deviation within 50 mV.</description><identifier>ISSN: 0278-0046</identifier><identifier>EISSN: 1557-9948</identifier><identifier>DOI: 10.1109/TIE.2024.3472216</identifier><identifier>CODEN: ITIED6</identifier><language>eng</language><publisher>IEEE</publisher><subject>Analytical models ; Automotive electronics ; Automotive engineering ; Capacitance ; Capacitors ; control design ; dc–dc power converters ; fast transient response ; Inductors ; Load modeling ; Stability analysis ; Transient analysis ; Transient response ; Voltage control</subject><ispartof>IEEE transactions on industrial electronics (1982), 2024-10, p.1-11</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0009-0006-4557-6224 ; 0000-0001-9485-774X ; 0009-0006-2471-7964 ; 0000-0001-6498-3083 ; 0009-0007-3133-2859 ; 0000-0003-4213-4587 ; 0000-0002-7416-1320</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/10729211$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/10729211$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Khan, Nameer</creatorcontrib><creatorcontrib>Cobani, Orest</creatorcontrib><creatorcontrib>Robitaille, Tristan</creatorcontrib><creatorcontrib>Pique, Gerard Villar</creatorcontrib><creatorcontrib>Pigott, John</creatorcontrib><creatorcontrib>Bergveld, Henk Jan</creatorcontrib><creatorcontrib>El Sherif, Alaa</creatorcontrib><creatorcontrib>Trescases, Olivier</creatorcontrib><title>Ultrafast Transient Response in 48 V Automotive VRMs: An Auxiliary-Assisted Adaptive Slew-Rate Control Scheme</title><title>IEEE transactions on industrial electronics (1982)</title><addtitle>TIE</addtitle><description>This article presents an auxiliary-assisted hybrid dc-dc converter for 48 V automotive voltage regulator modules (VRMs) that enable adaptive inductor-current slew-rate control for ultrafast transient response. The main stage, a 4:1 dual-inductor hybrid (DIH) dc-dc converter, delivers the dc load power, while the output voltage is regulated by a GaN-based auxiliary-buck stage that is accoupled by a buffer capacitor. The main stage regulates the output of the ac-coupled auxiliary stage using an average-current-mode-control (ACMC) scheme to achieve adaptive control of the auxiliary-inductor-current slew rate. The auxiliary ac-coupled buck (ACB) converter regulates the output voltage based on an output-capacitor current-based hysteretic-current-mode-control (HCMC) scheme. An adaptive-voltage-positioning (AVP) scheme is proposed for the auxiliary capacitor, which preemptively positions the ACB output voltage for improved transient response. A small-signal model of the auxiliary-assisted converter is presented for stability analysis and validated with simulation results. A 40 W proof-of-concept prototype was fabricated to demonstrate the feasibility of the adaptive slew-rate control technique and AVP scheme. The prototype achieves a peak efficiency of 90.6% with an output capacitance of 500 μF and an auxiliary capacitance of 22 μF, while maintaining the output voltage deviation within 50 mV.</description><subject>Analytical models</subject><subject>Automotive electronics</subject><subject>Automotive engineering</subject><subject>Capacitance</subject><subject>Capacitors</subject><subject>control design</subject><subject>dc–dc power converters</subject><subject>fast transient response</subject><subject>Inductors</subject><subject>Load modeling</subject><subject>Stability analysis</subject><subject>Transient analysis</subject><subject>Transient response</subject><subject>Voltage control</subject><issn>0278-0046</issn><issn>1557-9948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkEtPwzAQhC0EEqVw58DBfyDF6ziOzS2qClQqQkof18hxNsIojyo2r39PSnvgtNJoZjT7EXILbAbA9P1muZhxxsUsFinnIM_IBJIkjbQW6pxMGE9VxJiQl-TK-3fGQCSQTEi7bcJgauMD3Qym8w67QHP0-77zSF1HhaI7mn2Evu2D-0S6y1_8A826Uft2jTPDT5R573zAimaV2f-Z1g1-RbkJSOd9F4a-oWv7hi1ek4vaNB5vTndKto-Lzfw5Wr0-LefZKrIg0hCJpOalUrwWSlexLEFVsdW2KkGwmouKq1IJKa0tdSJBivEbQG1L1MrwKhbxlLBjrx167wesi_3g2nFrAaw44CpGXMUBV3HCNUbujhGHiP_sKdccIP4FrQdmeg</recordid><startdate>20241022</startdate><enddate>20241022</enddate><creator>Khan, Nameer</creator><creator>Cobani, Orest</creator><creator>Robitaille, Tristan</creator><creator>Pique, Gerard Villar</creator><creator>Pigott, John</creator><creator>Bergveld, Henk Jan</creator><creator>El Sherif, Alaa</creator><creator>Trescases, Olivier</creator><general>IEEE</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0009-0006-4557-6224</orcidid><orcidid>https://orcid.org/0000-0001-9485-774X</orcidid><orcidid>https://orcid.org/0009-0006-2471-7964</orcidid><orcidid>https://orcid.org/0000-0001-6498-3083</orcidid><orcidid>https://orcid.org/0009-0007-3133-2859</orcidid><orcidid>https://orcid.org/0000-0003-4213-4587</orcidid><orcidid>https://orcid.org/0000-0002-7416-1320</orcidid></search><sort><creationdate>20241022</creationdate><title>Ultrafast Transient Response in 48 V Automotive VRMs: An Auxiliary-Assisted Adaptive Slew-Rate Control Scheme</title><author>Khan, Nameer ; Cobani, Orest ; Robitaille, Tristan ; Pique, Gerard Villar ; Pigott, John ; Bergveld, Henk Jan ; El Sherif, Alaa ; Trescases, Olivier</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c147t-45f2b882f489d36b18d3c9cdb140f24d28b8466ccb9561640011e9cbe98a2d343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Analytical models</topic><topic>Automotive electronics</topic><topic>Automotive engineering</topic><topic>Capacitance</topic><topic>Capacitors</topic><topic>control design</topic><topic>dc–dc power converters</topic><topic>fast transient response</topic><topic>Inductors</topic><topic>Load modeling</topic><topic>Stability analysis</topic><topic>Transient analysis</topic><topic>Transient response</topic><topic>Voltage control</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khan, Nameer</creatorcontrib><creatorcontrib>Cobani, Orest</creatorcontrib><creatorcontrib>Robitaille, Tristan</creatorcontrib><creatorcontrib>Pique, Gerard Villar</creatorcontrib><creatorcontrib>Pigott, John</creatorcontrib><creatorcontrib>Bergveld, Henk Jan</creatorcontrib><creatorcontrib>El Sherif, Alaa</creatorcontrib><creatorcontrib>Trescases, Olivier</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005–Present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998–Present</collection><collection>IEEE Xplore</collection><collection>CrossRef</collection><jtitle>IEEE transactions on industrial electronics (1982)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Khan, Nameer</au><au>Cobani, Orest</au><au>Robitaille, Tristan</au><au>Pique, Gerard Villar</au><au>Pigott, John</au><au>Bergveld, Henk Jan</au><au>El Sherif, Alaa</au><au>Trescases, Olivier</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultrafast Transient Response in 48 V Automotive VRMs: An Auxiliary-Assisted Adaptive Slew-Rate Control Scheme</atitle><jtitle>IEEE transactions on industrial electronics (1982)</jtitle><stitle>TIE</stitle><date>2024-10-22</date><risdate>2024</risdate><spage>1</spage><epage>11</epage><pages>1-11</pages><issn>0278-0046</issn><eissn>1557-9948</eissn><coden>ITIED6</coden><abstract>This article presents an auxiliary-assisted hybrid dc-dc converter for 48 V automotive voltage regulator modules (VRMs) that enable adaptive inductor-current slew-rate control for ultrafast transient response. The main stage, a 4:1 dual-inductor hybrid (DIH) dc-dc converter, delivers the dc load power, while the output voltage is regulated by a GaN-based auxiliary-buck stage that is accoupled by a buffer capacitor. The main stage regulates the output of the ac-coupled auxiliary stage using an average-current-mode-control (ACMC) scheme to achieve adaptive control of the auxiliary-inductor-current slew rate. The auxiliary ac-coupled buck (ACB) converter regulates the output voltage based on an output-capacitor current-based hysteretic-current-mode-control (HCMC) scheme. An adaptive-voltage-positioning (AVP) scheme is proposed for the auxiliary capacitor, which preemptively positions the ACB output voltage for improved transient response. A small-signal model of the auxiliary-assisted converter is presented for stability analysis and validated with simulation results. A 40 W proof-of-concept prototype was fabricated to demonstrate the feasibility of the adaptive slew-rate control technique and AVP scheme. The prototype achieves a peak efficiency of 90.6% with an output capacitance of 500 μF and an auxiliary capacitance of 22 μF, while maintaining the output voltage deviation within 50 mV.</abstract><pub>IEEE</pub><doi>10.1109/TIE.2024.3472216</doi><tpages>11</tpages><orcidid>https://orcid.org/0009-0006-4557-6224</orcidid><orcidid>https://orcid.org/0000-0001-9485-774X</orcidid><orcidid>https://orcid.org/0009-0006-2471-7964</orcidid><orcidid>https://orcid.org/0000-0001-6498-3083</orcidid><orcidid>https://orcid.org/0009-0007-3133-2859</orcidid><orcidid>https://orcid.org/0000-0003-4213-4587</orcidid><orcidid>https://orcid.org/0000-0002-7416-1320</orcidid></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 0278-0046 |
| ispartof | IEEE transactions on industrial electronics (1982), 2024-10, p.1-11 |
| issn | 0278-0046 1557-9948 |
| language | eng |
| recordid | cdi_ieee_primary_10729211 |
| source | IEEE Xplore |
| subjects | Analytical models Automotive electronics Automotive engineering Capacitance Capacitors control design dc–dc power converters fast transient response Inductors Load modeling Stability analysis Transient analysis Transient response Voltage control |
| title | Ultrafast Transient Response in 48 V Automotive VRMs: An Auxiliary-Assisted Adaptive Slew-Rate Control Scheme |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-28T05%3A50%3A42IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref_RIE&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Ultrafast%20Transient%20Response%20in%2048%20V%20Automotive%20VRMs:%20An%20Auxiliary-Assisted%20Adaptive%20Slew-Rate%20Control%20Scheme&rft.jtitle=IEEE%20transactions%20on%20industrial%20electronics%20(1982)&rft.au=Khan,%20Nameer&rft.date=2024-10-22&rft.spage=1&rft.epage=11&rft.pages=1-11&rft.issn=0278-0046&rft.eissn=1557-9948&rft.coden=ITIED6&rft_id=info:doi/10.1109/TIE.2024.3472216&rft_dat=%3Ccrossref_RIE%3E10_1109_TIE_2024_3472216%3C/crossref_RIE%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rft_ieee_id=10729211&rfr_iscdi=true |