{"id":"https://openalex.org/W2022891333","doi":"https://doi.org/10.1145/1284480.1284507","title":"Design of a class D amplifier for hearing aid devices","display_name":"Design of a class D amplifier for hearing aid devices","publication_year":2007,"publication_date":"2007-09-03","ids":{"openalex":"https://openalex.org/W2022891333","doi":"https://doi.org/10.1145/1284480.1284507","mag":"2022891333"},"language":"en","primary_location":{"id":"doi:10.1145/1284480.1284507","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1284480.1284507","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 20th annual conference on Integrated circuits and systems design","raw_type":"proceedings-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/A5072650477","display_name":"Daniel N. Ruiz","orcid":null},"institutions":[{"id":"https://openalex.org/I8165072","display_name":"Universidade Federal de Itajub\u00e1","ror":"https://ror.org/00235nr42","country_code":"BR","type":"education","lineage":["https://openalex.org/I8165072"]}],"countries":["BR"],"is_corresponding":true,"raw_author_name":"Daniel N. Ruiz","raw_affiliation_strings":["UNIFEI, Itajuba, Brazil"],"affiliations":[{"raw_affiliation_string":"UNIFEI, Itajuba, Brazil","institution_ids":["https://openalex.org/I8165072"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085951867","display_name":"Robson Luiz Moreno","orcid":"https://orcid.org/0000-0002-1938-7685"},"institutions":[{"id":"https://openalex.org/I8165072","display_name":"Universidade Federal de Itajub\u00e1","ror":"https://ror.org/00235nr42","country_code":"BR","type":"education","lineage":["https://openalex.org/I8165072"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Robson L. Moreno","raw_affiliation_strings":["UNIFEI, Itajuba, Brazil"],"affiliations":[{"raw_affiliation_string":"UNIFEI, Itajuba, Brazil","institution_ids":["https://openalex.org/I8165072"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090433651","display_name":"Tales Cleber Pimenta","orcid":"https://orcid.org/0000-0002-2791-7332"},"institutions":[{"id":"https://openalex.org/I8165072","display_name":"Universidade Federal de Itajub\u00e1","ror":"https://ror.org/00235nr42","country_code":"BR","type":"education","lineage":["https://openalex.org/I8165072"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Tales C. Pimenta","raw_affiliation_strings":["UNIFEI, Itajuba, Brazil"],"affiliations":[{"raw_affiliation_string":"UNIFEI, Itajuba, Brazil","institution_ids":["https://openalex.org/I8165072"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5072650477"],"corresponding_institution_ids":["https://openalex.org/I8165072"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0906259,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"76","last_page":"80"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11248","display_name":"Advanced Power Amplifier Design","score":0.9983000159263611,"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":0.9983000159263611,"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/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":0.9876999855041504,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11249","display_name":"Wireless Power Transfer Systems","score":0.9789999723434448,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.7330037355422974},{"id":"https://openalex.org/keywords/total-harmonic-distortion","display_name":"Total harmonic distortion","score":0.7072566151618958},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5683032870292664},{"id":"https://openalex.org/keywords/rf-power-amplifier","display_name":"RF power amplifier","score":0.5560735464096069},{"id":"https://openalex.org/keywords/linear-amplifier","display_name":"Linear amplifier","score":0.5556535124778748},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5306533575057983},{"id":"https://openalex.org/keywords/power-consumption","display_name":"Power consumption","score":0.5122682452201843},{"id":"https://openalex.org/keywords/pulse-width-modulation","display_name":"Pulse-width modulation","score":0.49232280254364014},{"id":"https://openalex.org/keywords/linearity","display_name":"Linearity","score":0.471786230802536},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.470951646566391},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.3728093206882477},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.34645235538482666},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.2663623094558716},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1639252007007599},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.0824885368347168}],"concepts":[{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.7330037355422974},{"id":"https://openalex.org/C42156128","wikidata":"https://www.wikidata.org/wiki/Q162641","display_name":"Total harmonic distortion","level":3,"score":0.7072566151618958},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5683032870292664},{"id":"https://openalex.org/C196054291","wikidata":"https://www.wikidata.org/wiki/Q7276624","display_name":"RF power amplifier","level":4,"score":0.5560735464096069},{"id":"https://openalex.org/C71041172","wikidata":"https://www.wikidata.org/wiki/Q6553412","display_name":"Linear amplifier","level":5,"score":0.5556535124778748},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5306533575057983},{"id":"https://openalex.org/C2984118289","wikidata":"https://www.wikidata.org/wiki/Q29954","display_name":"Power consumption","level":3,"score":0.5122682452201843},{"id":"https://openalex.org/C92746544","wikidata":"https://www.wikidata.org/wiki/Q585184","display_name":"Pulse-width modulation","level":3,"score":0.49232280254364014},{"id":"https://openalex.org/C77170095","wikidata":"https://www.wikidata.org/wiki/Q1753188","display_name":"Linearity","level":2,"score":0.471786230802536},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.470951646566391},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3728093206882477},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.34645235538482666},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.2663623094558716},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1639252007007599},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0824885368347168},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1284480.1284507","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1284480.1284507","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 20th annual conference on Integrated circuits and systems design","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.9100000262260437,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W186226667","https://openalex.org/W1502859127","https://openalex.org/W1522375840","https://openalex.org/W1541499607","https://openalex.org/W1765002080","https://openalex.org/W1827998298","https://openalex.org/W2037444274","https://openalex.org/W2066422686","https://openalex.org/W2119981449","https://openalex.org/W2124297662","https://openalex.org/W2140612368","https://openalex.org/W2142100344","https://openalex.org/W3203011645","https://openalex.org/W6631223640"],"related_works":["https://openalex.org/W2114326950","https://openalex.org/W2369012459","https://openalex.org/W2113563608","https://openalex.org/W2056092133","https://openalex.org/W2098582779","https://openalex.org/W2518035769","https://openalex.org/W2112126224","https://openalex.org/W2355154599","https://openalex.org/W2971598220","https://openalex.org/W2154567562"],"abstract_inverted_index":{"This":[0],"paper":[1],"describes":[2],"the":[3],"design":[4],"of":[5,39,44],"a":[6,47],"class":[7],"D":[8],"amplifier":[9,35],"for":[10],"hearing":[11],"aid":[12],"devices":[13],"using":[14],"PWM":[15],"modulation":[16],"technique.":[17],"The":[18,34],"new":[19],"topology":[20],"used":[21],"to":[22],"overcome":[23],"offset":[24],"problems":[25],"promotes":[26],"low":[27,31],"power":[28],"consumption":[29],"and":[30,52],"harmonic":[32],"distortion.":[33],"presents":[36],"an":[37],"efficiency":[38,51],"93%":[40],"with":[41],"just":[42],"1.9%":[43],"THD,":[45],"indicating":[46],"good":[48],"compromise":[49],"between":[50],"linearity.":[53]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
