Article(id=1205533798034301812, tenantId=1146029695717560320, journalId=1189987059142926344, issueId=1205533795375113021, articleNumber=null, orderNo=null, doi=10.19457/j.1001-2095.dqcd24930, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1675008000000, receivedDateStr=2023-01-30, revisedDate=1675958400000, revisedDateStr=2023-02-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1765351255186, onlineDateStr=2025-12-10, pubDate=1734624000000, pubDateStr=2024-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765351255186, onlineIssueDateStr=2025-12-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765351255186, creator=13701087609, updateTime=1765351255186, updator=13701087609, issue=Issue{id=1205533795375113021, tenantId=1146029695717560320, journalId=1189987059142926344, year='2024', volume='54', issue='12', pageStart='3', pageEnd='93', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1765351254552, creator=13701087609, updateTime=1765351619801, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1205535327520817992, tenantId=1146029695717560320, journalId=1189987059142926344, issueId=1205533795375113021, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1205535327520817993, tenantId=1146029695717560320, journalId=1189987059142926344, issueId=1205533795375113021, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=40, endPage=46, ext={EN=ArticleExt(id=1205533798269182849, articleId=1205533798034301812, tenantId=1146029695717560320, journalId=1189987059142926344, language=EN, title=Influence of Weak Excitation Inductance on Full-bridge DC-DC Converter and Its Autonomous Soft-switching, columnId=null, journalTitle=Electric Drive, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Switching power supply is now developing towards high-frequency soft-switching and high power density,the volume of magnetic components is greatly reduced,and the excitation inductance of transformer no longer meets the assumption of large excitation inductance in traditional analysis. Under this background,the influence of the weak excitation inductance on the full-bridge circuit was analyzed,and proposed that the full-bridge circuit can achieve autonomous soft-switching through the charging and discharging of the capacitor under the condition of the weak excitation inductance. The autonomous soft-switching of the full-bridge converter can be realized when the duty ratio is large. Through principle analysis and calculation,relationship between the charge and discharge of the switch body capacitance and the inductance current and the time constant was obtained,and the above principle through simulation were verified. Finally,an experimental platform with a working frequency of 200 kHz was built to verify the above analysis and simulation results.
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开关电源如今朝着高频软开关以及高功率密度的方向发展,磁性元件的体积大幅度减小,变压器励磁电感不再满足传统分析的大励磁电感假设。在此背景下,分析了弱励磁电感对全桥电路的影响,同时提出在弱励磁电感条件下全桥电路能够通过电容的充放电而实现自主软开关。全桥变换器的自主软开关可在占空比较大时实现,通过原理分析及计算得出了开关管体电容充放电以及电感电流与时间常数的关系,并通过仿真验证了上述原理。最后搭建了工作频率为200 kHz的实验台,对上述分析与仿真结果进行了实验验证。
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2000., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1205555830046327517, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, xref=null, ext=[AuthorCompanyExt(id=1205555830054716126, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, companyId=1205555830046327517, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Electronic Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,Jiangsu,China), AuthorCompanyExt(id=1205555830058910431, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, companyId=1205555830046327517, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=南京航空航天大学 电子信息工程学院,江苏 南京 211106)])], figs=[ArticleFig(id=1205555831401087748, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.1, caption=
Full-bridge circuit topology, figureFileSmall=Mr4jcSHkHDUF1VH51ABaFQ==, figureFileBig=BjyssMtFlSV1zBMsQDIagA==, tableContent=null), ArticleFig(id=1205555831455613702, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图1, caption=
全桥电路拓扑, figureFileSmall=Mr4jcSHkHDUF1VH51ABaFQ==, figureFileBig=BjyssMtFlSV1zBMsQDIagA==, tableContent=null), ArticleFig(id=1205555831552082695, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.2, caption=
Theoretical waveforms of traditional full-bridge converter, figureFileSmall=vsMzZVilW1V3qoJMVnxLew==, figureFileBig=5/4nkR1an2GkEEq0Wn/OwA==, tableContent=null), ArticleFig(id=1205555831614997257, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图2, caption=
传统全桥变换器理论波形, figureFileSmall=vsMzZVilW1V3qoJMVnxLew==, figureFileBig=5/4nkR1an2GkEEq0Wn/OwA==, tableContent=null), ArticleFig(id=1205555831690494730, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.3, caption=
Theoretical waveforms of full-bridge converter under weak excitation inductance, figureFileSmall=EAGa8Bl4Jnh+NKRJVW2XUw==, figureFileBig=NpPiDEsqRxAc5OgpE0Ajwg==, tableContent=null), ArticleFig(id=1205555831770186508, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图3, caption=
弱励磁电感下全桥变换器理论波形, figureFileSmall=EAGa8Bl4Jnh+NKRJVW2XUw==, figureFileBig=NpPiDEsqRxAc5OgpE0Ajwg==, tableContent=null), ArticleFig(id=1205555831833101070, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.4, caption=
Theoretical waveforms of soft-switching in full-bridge circuit with weak excitation inductance, figureFileSmall=YICy5k7Nj5B404rLELKTCw==, figureFileBig=idjiyHwhL82U7uEr5TT5yA==, tableContent=null), ArticleFig(id=1205555831925375760, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图4, caption=
弱励磁电感全桥电路软开关理论波形, figureFileSmall=YICy5k7Nj5B404rLELKTCw==, figureFileBig=idjiyHwhL82U7uEr5TT5yA==, tableContent=null), ArticleFig(id=1205555831984096018, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.5, caption=
Operating mode of full-bridge circuit with weak excitation inductance, figureFileSmall=55eeQzrOPaaj6nLR1CEFGg==, figureFileBig=i1UfVnYa6Rte+O14hOl8LA==, tableContent=null), ArticleFig(id=1205555832059593492, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图5, caption=
弱励磁电感全桥电路工作模态, figureFileSmall=55eeQzrOPaaj6nLR1CEFGg==, figureFileBig=i1UfVnYa6Rte+O14hOl8LA==, tableContent=null), ArticleFig(id=1205555832143479574, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.6, caption=
Equivalent circuit of operating stage 1 and stage 3, figureFileSmall=oOuJhVdmDa4i8+TvQJ9X0w==, figureFileBig=zE7gcKVkKFec1b0M8PP7mg==, tableContent=null), ArticleFig(id=1205555832210588440, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图6, caption=
工作阶段1和阶段3等效电路, figureFileSmall=oOuJhVdmDa4i8+TvQJ9X0w==, figureFileBig=zE7gcKVkKFec1b0M8PP7mg==, tableContent=null), ArticleFig(id=1205555832286085914, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.7, caption=
Equivalent circuit of operating stage 2 and stage 4, figureFileSmall=Y86/bcoecte+u2sqxGdu0w==, figureFileBig=mRTO4soaF/VKZmgYGTBh+A==, tableContent=null), ArticleFig(id=1205555832349000476, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图7, caption=
工作阶段2和阶段4等效电路, figureFileSmall=Y86/bcoecte+u2sqxGdu0w==, figureFileBig=mRTO4soaF/VKZmgYGTBh+A==, tableContent=null), ArticleFig(id=1205555832424497949, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.8, caption=
Simulation waveforms, figureFileSmall=CxJ1+Iwl7ihndRmgSy6CwA==, figureFileBig=Maqiop9U7rgNw3vRePnJig==, tableContent=null), ArticleFig(id=1205555832504189725, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图8, caption=
仿真波形, figureFileSmall=CxJ1+Iwl7ihndRmgSy6CwA==, figureFileBig=Maqiop9U7rgNw3vRePnJig==, tableContent=null), ArticleFig(id=1205555832575492894, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.9, caption=
Experimental prototype, figureFileSmall=fCerEJWHpk7PDeeiAkTPKw==, figureFileBig=fdmNlALJVM6rWhUV8UweEA==, tableContent=null), ArticleFig(id=1205555832650990368, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图9, caption=
实验样机, figureFileSmall=fCerEJWHpk7PDeeiAkTPKw==, figureFileBig=fdmNlALJVM6rWhUV8UweEA==, tableContent=null), ArticleFig(id=1205555832730682146, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.10, caption=
Working waveforms of switch S1 during the operation of weak excitation inductor full-bridge circuit, figureFileSmall=XvB/HtMEvk8rj7cb0M59mw==, figureFileBig=BiM5gJsbJCszEJ1QmX4+RQ==, tableContent=null), ArticleFig(id=1205555832789402404, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图10, caption=
弱励磁电感全桥电路工作时开关管S1的工作波形, figureFileSmall=XvB/HtMEvk8rj7cb0M59mw==, figureFileBig=BiM5gJsbJCszEJ1QmX4+RQ==, tableContent=null), ArticleFig(id=1205555832860705574, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.11, caption=
Secondary side synchronous rectification waveforms, figureFileSmall=PgFnb1CAkjRMm0+5AdOI4A==, figureFileBig=9kY3/IPK40R5zBntPHDkEA==, tableContent=null), ArticleFig(id=1205555832952980264, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图11, caption=
副边同步整流波形, figureFileSmall=PgFnb1CAkjRMm0+5AdOI4A==, figureFileBig=9kY3/IPK40R5zBntPHDkEA==, tableContent=null), ArticleFig(id=1205555833032672042, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.12, caption=
Critical soft switch state, figureFileSmall=Cr6388byD6FMDewR3a6YYA==, figureFileBig=FBHn7FVVyndZYNAxOWnQzg==, tableContent=null), ArticleFig(id=1205555833091392300, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图12, caption=
临界软开关状态, figureFileSmall=Cr6388byD6FMDewR3a6YYA==, figureFileBig=FBHn7FVVyndZYNAxOWnQzg==, tableContent=null), ArticleFig(id=1205555833145918254, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.13, caption=
Waveforms of critical value exceeded, figureFileSmall=iQi9lAHd0NDTFDIHF3cz/g==, figureFileBig=94b/ozqPrXLVaN/dYgwOiw==, tableContent=null), ArticleFig(id=1205555833242387249, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图13, caption=
超过临界值波形, figureFileSmall=iQi9lAHd0NDTFDIHF3cz/g==, figureFileBig=94b/ozqPrXLVaN/dYgwOiw==, tableContent=null), ArticleFig(id=1205555833309496115, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=EN, label=Fig.14, caption=
Efficiency curve, figureFileSmall=BYeV9yBmaalXjtGMw3SAEA==, figureFileBig=DvQAj1Uk+XG/2QOuaZeuUA==, tableContent=null), ArticleFig(id=1205555833380799285, tenantId=1146029695717560320, journalId=1189987059142926344, articleId=1205533798034301812, language=CN, label=图14, caption=
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