High-efficiency linear power amplifier for active magnetic bearings
A modified class-G linear amplifier has been developed to improve the overall efficiency of a transconductance amplifier loaded with the high inductance and low resistance typical of the magnetic bearing coils. A simple theoretical characterization has been used to provide some diagrams to optimize...
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| Veröffentlicht in: | IEEE transactions on industrial electronics (1982) 2000-02, Vol.47 (1), p.17-24 |
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| container_end_page | 24 |
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| container_title | IEEE transactions on industrial electronics (1982) |
| container_volume | 47 |
| creator | Carabelli, S. Maddaleno, F. Muzzarelli, M. |
| description | A modified class-G linear amplifier has been developed to improve the overall efficiency of a transconductance amplifier loaded with the high inductance and low resistance typical of the magnetic bearing coils. A simple theoretical characterization has been used to provide some diagrams to optimize the power efficiency as a function of a nonconstant load such as that due to a rotor unbalance. Experimental results are reported that show a more than satisfactory agreement with the expected results and the developed theory. |
| doi_str_mv | 10.1109/41.824021 |
| format | Article |
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A simple theoretical characterization has been used to provide some diagrams to optimize the power efficiency as a function of a nonconstant load such as that due to a rotor unbalance. Experimental results are reported that show a more than satisfactory agreement with the expected results and the developed theory.</description><identifier>ISSN: 0278-0046</identifier><identifier>EISSN: 1557-9948</identifier><identifier>DOI: 10.1109/41.824021</identifier><identifier>CODEN: ITIED6</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Amplifiers ; Coils ; Force feedback ; High power amplifiers ; Immune system ; Inductance ; Industrial electronics ; Linear amplifiers ; Machinery ; Magnetic bearings ; Magnetic levitation ; Power amplifiers ; Power efficiency ; Transconductance ; Unbalance ; Voltage</subject><ispartof>IEEE transactions on industrial electronics (1982), 2000-02, Vol.47 (1), p.17-24</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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A simple theoretical characterization has been used to provide some diagrams to optimize the power efficiency as a function of a nonconstant load such as that due to a rotor unbalance. Experimental results are reported that show a more than satisfactory agreement with the expected results and the developed theory.</description><subject>Amplifiers</subject><subject>Coils</subject><subject>Force feedback</subject><subject>High power amplifiers</subject><subject>Immune system</subject><subject>Inductance</subject><subject>Industrial electronics</subject><subject>Linear amplifiers</subject><subject>Machinery</subject><subject>Magnetic bearings</subject><subject>Magnetic levitation</subject><subject>Power amplifiers</subject><subject>Power efficiency</subject><subject>Transconductance</subject><subject>Unbalance</subject><subject>Voltage</subject><issn>0278-0046</issn><issn>1557-9948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqN0TtPAzEMAOAIgUQpDKxMJwYQw5Uk59wlI6qAIlVigfmUGqekuheXFtR_T9BVDAzAFEf-ZFs2Y6eCT4Tg5hrEREvgUuyxkVCqSI0Bvc9GXBY65RzyQ3YUwopzAUqoEZvO_PI1Jec8empwm1S-IdsnXftBfWLrrvLOx8i18Ydr_05JbZcNrT0miwh9swzH7MDZKtDJ7h2z57vbp-ksnT_eP0xv5ilCDuu04EqhEoYWiJwMoi4yAlQaKRcWMmnyPHfOWIUcxYsEndtMZijj1E5bl43Z5VC369u3DYV1WfuAVFW2oXYTSiNiH8FVFuXFr1IaacBw_TfU0hSG_6MiSBAaZITnP-Cq3fRN3EupteIAhYSIrgaEfRtCT67sel_bflsKXn7dsQRRDneM9mywnoi-3S75Ca-3lbo</recordid><startdate>20000201</startdate><enddate>20000201</enddate><creator>Carabelli, S.</creator><creator>Maddaleno, F.</creator><creator>Muzzarelli, M.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>7TB</scope><scope>FR3</scope><scope>F28</scope></search><sort><creationdate>20000201</creationdate><title>High-efficiency linear power amplifier for active magnetic bearings</title><author>Carabelli, S. ; Maddaleno, F. ; Muzzarelli, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-7055c519ebcc0e9cc873e4c58ce61a4329666ff9a5c0c1d2486a323c2046f8af3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Amplifiers</topic><topic>Coils</topic><topic>Force feedback</topic><topic>High power amplifiers</topic><topic>Immune system</topic><topic>Inductance</topic><topic>Industrial electronics</topic><topic>Linear amplifiers</topic><topic>Machinery</topic><topic>Magnetic bearings</topic><topic>Magnetic levitation</topic><topic>Power amplifiers</topic><topic>Power efficiency</topic><topic>Transconductance</topic><topic>Unbalance</topic><topic>Voltage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Carabelli, S.</creatorcontrib><creatorcontrib>Maddaleno, F.</creatorcontrib><creatorcontrib>Muzzarelli, M.</creatorcontrib><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>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Engineering Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><jtitle>IEEE transactions on industrial electronics (1982)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Carabelli, S.</au><au>Maddaleno, F.</au><au>Muzzarelli, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-efficiency linear power amplifier for active magnetic bearings</atitle><jtitle>IEEE transactions on industrial electronics (1982)</jtitle><stitle>TIE</stitle><date>2000-02-01</date><risdate>2000</risdate><volume>47</volume><issue>1</issue><spage>17</spage><epage>24</epage><pages>17-24</pages><issn>0278-0046</issn><eissn>1557-9948</eissn><coden>ITIED6</coden><abstract>A modified class-G linear amplifier has been developed to improve the overall efficiency of a transconductance amplifier loaded with the high inductance and low resistance typical of the magnetic bearing coils. A simple theoretical characterization has been used to provide some diagrams to optimize the power efficiency as a function of a nonconstant load such as that due to a rotor unbalance. Experimental results are reported that show a more than satisfactory agreement with the expected results and the developed theory.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/41.824021</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0278-0046 |
| ispartof | IEEE transactions on industrial electronics (1982), 2000-02, Vol.47 (1), p.17-24 |
| issn | 0278-0046 1557-9948 |
| language | eng |
| recordid | cdi_proquest_journals_885044724 |
| source | IEEE Electronic Library (IEL) |
| subjects | Amplifiers Coils Force feedback High power amplifiers Immune system Inductance Industrial electronics Linear amplifiers Machinery Magnetic bearings Magnetic levitation Power amplifiers Power efficiency Transconductance Unbalance Voltage |
| title | High-efficiency linear power amplifier for active magnetic bearings |
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