Primary-Side Regulation Scheme for LLC Resonant Converter With Improved Resonant Current Sampling Circuit
A primary-side regulation (PSR) scheme for LLC resonant converter with improved resonant current sampling circuit is presented in this letter. An RC branch together with the auxiliary winding of the transformer is added in parallel with the current sampling resistor. The transformer magnetizing curr...
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| Veröffentlicht in: | IEEE transactions on power electronics 2021-02, Vol.36 (2), p.1242-1246 |
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| container_title | IEEE transactions on power electronics |
| container_volume | 36 |
| creator | Dong, Hanjing Xie, Xiaogao Yu, Dailing |
| description | A primary-side regulation (PSR) scheme for LLC resonant converter with improved resonant current sampling circuit is presented in this letter. An RC branch together with the auxiliary winding of the transformer is added in parallel with the current sampling resistor. The transformer magnetizing current component in the sampled primary current waveform on the sampling resistor can be offset by the generated voltage waveform on the added capacitor of the RC branch. In this way, PSR control for LLC resonant converter can be realized. Detailed operation principle and deviation analysis on the proposed PSR scheme are presented. Furthermore, a deadtime compensation is introduced to improve the output current accuracy caused by the component tolerance. Finally, a 48-78 V/1.3 A half-bridge LLC prototype has been built up to verify the theoretical analysis. |
| doi_str_mv | 10.1109/TPEL.2020.3007987 |
| format | Article |
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An RC branch together with the auxiliary winding of the transformer is added in parallel with the current sampling resistor. The transformer magnetizing current component in the sampled primary current waveform on the sampling resistor can be offset by the generated voltage waveform on the added capacitor of the RC branch. In this way, PSR control for LLC resonant converter can be realized. Detailed operation principle and deviation analysis on the proposed PSR scheme are presented. Furthermore, a deadtime compensation is introduced to improve the output current accuracy caused by the component tolerance. Finally, a 48-78 V/1.3 A half-bridge LLC prototype has been built up to verify the theoretical analysis.</description><identifier>ISSN: 0885-8993</identifier><identifier>EISSN: 1941-0107</identifier><identifier>DOI: 10.1109/TPEL.2020.3007987</identifier><identifier>CODEN: ITPEE8</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Capacitors ; Circuits ; Converters ; Inductors ; LLC ; Magnetic resonance ; Primary-side regulation (PSR) ; Resistors ; Resonant converters ; Resonant current sampling circuit ; RLC circuits ; Sampling ; Transformers ; Waveforms ; Windings</subject><ispartof>IEEE transactions on power electronics, 2021-02, Vol.36 (2), p.1242-1246</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c293t-22586f939224bf1535b25dab7cc9cacf22c2a0f91fe030b780fcb9221b1698023</citedby><cites>FETCH-LOGICAL-c293t-22586f939224bf1535b25dab7cc9cacf22c2a0f91fe030b780fcb9221b1698023</cites><orcidid>0000-0002-4821-1283 ; 0000-0003-3466-3841</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9136745$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54737</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9136745$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Dong, Hanjing</creatorcontrib><creatorcontrib>Xie, Xiaogao</creatorcontrib><creatorcontrib>Yu, Dailing</creatorcontrib><title>Primary-Side Regulation Scheme for LLC Resonant Converter With Improved Resonant Current Sampling Circuit</title><title>IEEE transactions on power electronics</title><addtitle>TPEL</addtitle><description>A primary-side regulation (PSR) scheme for LLC resonant converter with improved resonant current sampling circuit is presented in this letter. An RC branch together with the auxiliary winding of the transformer is added in parallel with the current sampling resistor. The transformer magnetizing current component in the sampled primary current waveform on the sampling resistor can be offset by the generated voltage waveform on the added capacitor of the RC branch. In this way, PSR control for LLC resonant converter can be realized. Detailed operation principle and deviation analysis on the proposed PSR scheme are presented. Furthermore, a deadtime compensation is introduced to improve the output current accuracy caused by the component tolerance. Finally, a 48-78 V/1.3 A half-bridge LLC prototype has been built up to verify the theoretical analysis.</description><subject>Capacitors</subject><subject>Circuits</subject><subject>Converters</subject><subject>Inductors</subject><subject>LLC</subject><subject>Magnetic resonance</subject><subject>Primary-side regulation (PSR)</subject><subject>Resistors</subject><subject>Resonant converters</subject><subject>Resonant current sampling circuit</subject><subject>RLC circuits</subject><subject>Sampling</subject><subject>Transformers</subject><subject>Waveforms</subject><subject>Windings</subject><issn>0885-8993</issn><issn>1941-0107</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkNFKwzAUhoMoOKcPIN4UvO48J2na5FLK1EHB4SZehjRLtoytnWk78O3t6BCv_ovz_eccPkLuESaIIJ-W82kxoUBhwgAyKbILMkKZYAwI2SUZgRA8FlKya3LTNFsATDjgiPh58HsdfuKFX9now667nW59XUULs7F7G7k6REWR95OmrnTVRnldHW1obYi-fLuJZvtDqI929Q_oQrB9LvT-sPPVOsp9MJ1vb8mV07vG3p1zTD5fpsv8LS7eX2f5cxEbKlkbU8pF6iSTlCalQ854SflKl5kx0mjjKDVUg5PoLDAoMwHOlD2MJaZSAGVj8jjs7R_77mzTqm3dhao_qWiSZJxjmoqewoEyoW6aYJ06DCIUgjoZVSej6mRUnY32nYeh4621f7xElmYJZ79fvXI-</recordid><startdate>20210201</startdate><enddate>20210201</enddate><creator>Dong, Hanjing</creator><creator>Xie, Xiaogao</creator><creator>Yu, Dailing</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-4821-1283</orcidid><orcidid>https://orcid.org/0000-0003-3466-3841</orcidid></search><sort><creationdate>20210201</creationdate><title>Primary-Side Regulation Scheme for LLC Resonant Converter With Improved Resonant Current Sampling Circuit</title><author>Dong, Hanjing ; Xie, Xiaogao ; Yu, Dailing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c293t-22586f939224bf1535b25dab7cc9cacf22c2a0f91fe030b780fcb9221b1698023</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Capacitors</topic><topic>Circuits</topic><topic>Converters</topic><topic>Inductors</topic><topic>LLC</topic><topic>Magnetic resonance</topic><topic>Primary-side regulation (PSR)</topic><topic>Resistors</topic><topic>Resonant converters</topic><topic>Resonant current sampling circuit</topic><topic>RLC circuits</topic><topic>Sampling</topic><topic>Transformers</topic><topic>Waveforms</topic><topic>Windings</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dong, Hanjing</creatorcontrib><creatorcontrib>Xie, Xiaogao</creatorcontrib><creatorcontrib>Yu, Dailing</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on power electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Dong, Hanjing</au><au>Xie, Xiaogao</au><au>Yu, Dailing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Primary-Side Regulation Scheme for LLC Resonant Converter With Improved Resonant Current Sampling Circuit</atitle><jtitle>IEEE transactions on power electronics</jtitle><stitle>TPEL</stitle><date>2021-02-01</date><risdate>2021</risdate><volume>36</volume><issue>2</issue><spage>1242</spage><epage>1246</epage><pages>1242-1246</pages><issn>0885-8993</issn><eissn>1941-0107</eissn><coden>ITPEE8</coden><abstract>A primary-side regulation (PSR) scheme for LLC resonant converter with improved resonant current sampling circuit is presented in this letter. An RC branch together with the auxiliary winding of the transformer is added in parallel with the current sampling resistor. The transformer magnetizing current component in the sampled primary current waveform on the sampling resistor can be offset by the generated voltage waveform on the added capacitor of the RC branch. In this way, PSR control for LLC resonant converter can be realized. Detailed operation principle and deviation analysis on the proposed PSR scheme are presented. Furthermore, a deadtime compensation is introduced to improve the output current accuracy caused by the component tolerance. Finally, a 48-78 V/1.3 A half-bridge LLC prototype has been built up to verify the theoretical analysis.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPEL.2020.3007987</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-4821-1283</orcidid><orcidid>https://orcid.org/0000-0003-3466-3841</orcidid></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Capacitors Circuits Converters Inductors LLC Magnetic resonance Primary-side regulation (PSR) Resistors Resonant converters Resonant current sampling circuit RLC circuits Sampling Transformers Waveforms Windings |
| title | Primary-Side Regulation Scheme for LLC Resonant Converter With Improved Resonant Current Sampling Circuit |
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