{"id":"https://openalex.org/W2059418378","doi":"https://doi.org/10.1109/tcsii.2011.2173973","title":"A Dual-Feedforward Carrier-Modulated Second-Order Class-D Amplifier With Improved THD","display_name":"A Dual-Feedforward Carrier-Modulated Second-Order Class-D Amplifier With Improved THD","publication_year":2011,"publication_date":"2011-11-17","ids":{"openalex":"https://openalex.org/W2059418378","doi":"https://doi.org/10.1109/tcsii.2011.2173973","mag":"2059418378"},"language":"en","primary_location":{"id":"doi:10.1109/tcsii.2011.2173973","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2011.2173973","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems II: Express Briefs","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100313058","display_name":"Jun Yu","orcid":"https://orcid.org/0009-0007-5870-0041"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Jun Yu","raw_affiliation_strings":["School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore","Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, , Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]},{"raw_affiliation_string":"Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, , Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109435253","display_name":"Meng Tong Tan","orcid":"https://orcid.org/0000-0002-3203-5019"},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I4210090209","display_name":"Institute of Microelectronics","ror":"https://ror.org/009rw8n36","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I4210090209","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Meng Tong Tan","raw_affiliation_strings":["Institute of Microelectronics, Agency for Science, Technology and Research, Singapore","Inst. of Microelectron., Agency for Sci., Technol. & Res. (A STAR), Singapore, Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Microelectronics, Agency for Science, Technology and Research, Singapore","institution_ids":["https://openalex.org/I115228651","https://openalex.org/I4210090209"]},{"raw_affiliation_string":"Inst. of Microelectron., Agency for Sci., Technol. & Res. (A STAR), Singapore, Singapore","institution_ids":["https://openalex.org/I115228651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042682339","display_name":"Wang Ling Goh","orcid":"https://orcid.org/0000-0001-7466-8941"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Wang Ling Goh","raw_affiliation_strings":["School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore","Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, , Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]},{"raw_affiliation_string":"Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, , Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5026128270","display_name":"Stephen M. Cox","orcid":"https://orcid.org/0000-0002-4609-5848"},"institutions":[{"id":"https://openalex.org/I142263535","display_name":"University of Nottingham","ror":"https://ror.org/01ee9ar58","country_code":"GB","type":"education","lineage":["https://openalex.org/I142263535"]},{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["GB","SG"],"is_corresponding":false,"raw_author_name":"Stephen M. Cox","raw_affiliation_strings":["School of Mathematical Sciences, University of Nottingham, Nottingham, UK","Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, , Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mathematical Sciences, University of Nottingham, Nottingham, UK","institution_ids":["https://openalex.org/I142263535"]},{"raw_affiliation_string":"Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, , Singapore","institution_ids":["https://openalex.org/I172675005"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.6218,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.85021709,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"59","issue":"1","first_page":"35","last_page":"39"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11248","display_name":"Advanced Power Amplifier Design","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11248","display_name":"Advanced Power Amplifier Design","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10175","display_name":"Advanced DC-DC Converters","score":0.9972000122070312,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10099","display_name":"GaN-based semiconductor devices and materials","score":0.9962999820709229,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/intermodulation","display_name":"Intermodulation","score":0.7945582866668701},{"id":"https://openalex.org/keywords/total-harmonic-distortion","display_name":"Total harmonic distortion","score":0.6410403847694397},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.6117204427719116},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5562639832496643},{"id":"https://openalex.org/keywords/feed-forward","display_name":"Feed forward","score":0.5136606097221375},{"id":"https://openalex.org/keywords/modulation","display_name":"Modulation (music)","score":0.49130478501319885},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.43116337060928345},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.41897666454315186},{"id":"https://openalex.org/keywords/pulse-width-modulation","display_name":"Pulse-width modulation","score":0.410376638174057},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.35904520750045776},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.31057512760162354},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.28078949451446533},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.1857832372188568},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.16296416521072388}],"concepts":[{"id":"https://openalex.org/C11773624","wikidata":"https://www.wikidata.org/wiki/Q2142232","display_name":"Intermodulation","level":4,"score":0.7945582866668701},{"id":"https://openalex.org/C42156128","wikidata":"https://www.wikidata.org/wiki/Q162641","display_name":"Total harmonic distortion","level":3,"score":0.6410403847694397},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.6117204427719116},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5562639832496643},{"id":"https://openalex.org/C38858127","wikidata":"https://www.wikidata.org/wiki/Q5441228","display_name":"Feed forward","level":2,"score":0.5136606097221375},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.49130478501319885},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.43116337060928345},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41897666454315186},{"id":"https://openalex.org/C92746544","wikidata":"https://www.wikidata.org/wiki/Q585184","display_name":"Pulse-width modulation","level":3,"score":0.410376638174057},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.35904520750045776},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.31057512760162354},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.28078949451446533},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.1857832372188568},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.16296416521072388},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C133731056","wikidata":"https://www.wikidata.org/wiki/Q4917288","display_name":"Control engineering","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tcsii.2011.2173973","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2011.2173973","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems II: Express Briefs","raw_type":"journal-article"},{"id":"pmh:oai:dr.ntu.edu.sg:10356/95858","is_oa":false,"landing_page_url":"http://hdl.handle.net/10220/11468","pdf_url":null,"source":{"id":"https://openalex.org/S4306402609","display_name":"DR-NTU (Nanyang Technological University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I172675005","host_organization_name":"Nanyang Technological University","host_organization_lineage":["https://openalex.org/I172675005"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8199999928474426,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1501948856","https://openalex.org/W1528894284","https://openalex.org/W1538652127","https://openalex.org/W1600063698","https://openalex.org/W2030191971","https://openalex.org/W2046014331","https://openalex.org/W2098268218","https://openalex.org/W2133213550","https://openalex.org/W2134485894","https://openalex.org/W2141009662","https://openalex.org/W2145865686","https://openalex.org/W2147143227","https://openalex.org/W6631706475","https://openalex.org/W6632276586","https://openalex.org/W6636022663","https://openalex.org/W6679973192"],"related_works":["https://openalex.org/W3132184505","https://openalex.org/W4226407597","https://openalex.org/W1675094194","https://openalex.org/W3163566819","https://openalex.org/W3204501655","https://openalex.org/W2389665571","https://openalex.org/W2344918511","https://openalex.org/W2620790533","https://openalex.org/W4313642538","https://openalex.org/W2969104787"],"abstract_inverted_index":{"The":[0,59,131],"advancement":[1],"of":[2,11,52,67,85,116],"power":[3,12],"MOSFET":[4],"fabrication":[5],"technology":[6],"has":[7,80],"aided":[8],"the":[9,48,105,114,124],"reduction":[10,20],"stage":[13],"errors":[14],"in":[15,30,95,109,113,128],"class-D":[16,34,57],"amplifiers":[17],"(amps).":[18],"This":[19],"reveals":[21],"intrinsic":[22,49],"distortion,":[23],"which":[24],"is":[25,44,92,134],"a":[26,39,53,63,110,139],"key":[27],"performance":[28],"limiter":[29],"modern":[31],"pulsewidth-modulation":[32],"(PWM)-based":[33],"amps.":[35],"In":[36],"this":[37],"brief,":[38],"dual-feedforward":[40],"carrier":[41,83,90,106],"modulation":[42],"topology":[43],"proposed":[45,60],"to":[46,75,122],"reduce":[47],"harmonic":[50,65],"distortion":[51,66,127],"second-order":[54],"loop":[55],"filter":[56],"amp.":[58],"design":[61],"achieves":[62],"total":[64],"less":[68],"than":[69],"0.01%":[70],"for":[71],"input":[72,118],"frequency":[73,84,91,107],"up":[74],"6":[76],"kHz,":[77],"and":[78,120,136],"it":[79,99],"an":[81,117],"idle":[82],"310":[86],"kHz.":[87],"Such":[88],"low":[89,101],"particularly":[93],"important":[94],"high-power":[96],"devices":[97],"as":[98],"guarantees":[100],"switching":[102],"loss.":[103],"Moreover,":[104],"varies":[108],"narrow":[111],"range":[112],"presence":[115],"signal":[119],"helps":[121],"suppress":[123],"audible":[125],"intermodulation":[126],"multichannel":[129],"applications.":[130],"prototype":[132],"circuit":[133,141],"implemented":[135],"tested":[137],"on":[138],"printed":[140],"board":[142],"using":[143],"discrete":[144],"components.":[145]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}