A 100-V Battery Charger Voltage Extender IC With 97% Efficiency at 4-A and ±0.5% Voltage Accuracy
This paper presents an IC that extends the voltage capability of a low voltage battery charger to 100V for accurately and reliably charging lithium ion (Li-Ion) battery stacks of up to 18 cells. The IC interfaces with a buck converter battery charger that utilizes external nFET control and an extern...
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| Veröffentlicht in: | IEEE transactions on circuits and systems. I, Regular papers Regular papers, 2020-07, Vol.67 (7), p.2492-2502 |
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| container_title | IEEE transactions on circuits and systems. I, Regular papers |
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| creator | Hunter, Bradford L. Ed Matthews, Wallace |
| description | This paper presents an IC that extends the voltage capability of a low voltage battery charger to 100V for accurately and reliably charging lithium ion (Li-Ion) battery stacks of up to 18 cells. The IC interfaces with a buck converter battery charger that utilizes external nFET control and an external inductor current sensing resistor. The voltage extender IC provides voltage level translation for the nFET control signals and the current sensing function while supporting an input power supply voltage of up to 100V and output battery voltage of up to 80V. The inductor current sense voltage is translated with a ping-pong amplifier capable of driving a bi-directional input voltage to a fully differential output with a maximum load current of 10 mA at 20 MHz bandwidth and less than 500 μV offset. The combined system of the voltage extender IC and battery charger achieved 97% efficiency at a 4-A charging current. The battery charging voltage accuracy was better than ± 0.5% at 80V. |
| doi_str_mv | 10.1109/TCSI.2020.2974627 |
| format | Article |
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The IC interfaces with a buck converter battery charger that utilizes external nFET control and an external inductor current sensing resistor. The voltage extender IC provides voltage level translation for the nFET control signals and the current sensing function while supporting an input power supply voltage of up to 100V and output battery voltage of up to 80V. The inductor current sense voltage is translated with a ping-pong amplifier capable of driving a bi-directional input voltage to a fully differential output with a maximum load current of 10 mA at 20 MHz bandwidth and less than 500 μV offset. The combined system of the voltage extender IC and battery charger achieved 97% efficiency at a 4-A charging current. The battery charging voltage accuracy was better than ± 0.5% at 80V.</description><identifier>ISSN: 1549-8328</identifier><identifier>EISSN: 1558-0806</identifier><identifier>DOI: 10.1109/TCSI.2020.2974627</identifier><identifier>CODEN: ITCSCH</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Auto zero ; Batteries ; battery charger ; Battery chargers ; bi-directional ; Buck converters ; Charging ; Current control ; high voltage ; Inductors ; Integrated circuits ; Lithium ; Lithium ions ; Low voltage ; ping-pong amplifier ; Rechargeable batteries ; Resistors ; Voltage control ; voltage extender</subject><ispartof>IEEE transactions on circuits and systems. I, Regular papers, 2020-07, Vol.67 (7), p.2492-2502</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c293t-acbb888f524690c19de952fa6c7a37d7b94296f6f8e9a2b59cb289dcff5b62d53</citedby><cites>FETCH-LOGICAL-c293t-acbb888f524690c19de952fa6c7a37d7b94296f6f8e9a2b59cb289dcff5b62d53</cites><orcidid>0000-0001-5853-1224</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9007643$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9007643$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Hunter, Bradford L.</creatorcontrib><creatorcontrib>Ed Matthews, Wallace</creatorcontrib><title>A 100-V Battery Charger Voltage Extender IC With 97% Efficiency at 4-A and ±0.5% Voltage Accuracy</title><title>IEEE transactions on circuits and systems. I, Regular papers</title><addtitle>TCSI</addtitle><description>This paper presents an IC that extends the voltage capability of a low voltage battery charger to 100V for accurately and reliably charging lithium ion (Li-Ion) battery stacks of up to 18 cells. The IC interfaces with a buck converter battery charger that utilizes external nFET control and an external inductor current sensing resistor. The voltage extender IC provides voltage level translation for the nFET control signals and the current sensing function while supporting an input power supply voltage of up to 100V and output battery voltage of up to 80V. The inductor current sense voltage is translated with a ping-pong amplifier capable of driving a bi-directional input voltage to a fully differential output with a maximum load current of 10 mA at 20 MHz bandwidth and less than 500 μV offset. The combined system of the voltage extender IC and battery charger achieved 97% efficiency at a 4-A charging current. The battery charging voltage accuracy was better than ± 0.5% at 80V.</description><subject>Auto zero</subject><subject>Batteries</subject><subject>battery charger</subject><subject>Battery chargers</subject><subject>bi-directional</subject><subject>Buck converters</subject><subject>Charging</subject><subject>Current control</subject><subject>high voltage</subject><subject>Inductors</subject><subject>Integrated circuits</subject><subject>Lithium</subject><subject>Lithium ions</subject><subject>Low voltage</subject><subject>ping-pong amplifier</subject><subject>Rechargeable batteries</subject><subject>Resistors</subject><subject>Voltage control</subject><subject>voltage extender</subject><issn>1549-8328</issn><issn>1558-0806</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kNFKwzAUhosoOKcPIN4EZJetJ2mSJpe1TB0MvHDOy5CmydYx15lmYB_LV_DJbNnw6vwcvv8c-KLoFkOCMciHRfE2SwgQSIjMKCfZWTTCjIkYBPDzIVMZi5SIy-iqbTcAREKKR1GZIwwQL9GjDsH6DhVr7VfWo2WzDXpl0fQ72F3VL2YF-qjDGslsgqbO1aa2O9MhHRCNc6R3Ffr9gYRN_pu5MQevTXcdXTi9be3NaY6j96fponiJ56_PsyKfx4bINMTalKUQwjFCuQSDZWUlI05zk-k0q7JSUiK5405YqUnJpCmJkJVxjpWcVCwdR_fHu3vffB1sG9SmOfhd_1IRigUlAFT2FD5Sxjdt661Te19_at8pDGpQqQaValCpTir7zt2xU1tr_3kJkHGapn8oT2zE</recordid><startdate>20200701</startdate><enddate>20200701</enddate><creator>Hunter, Bradford L.</creator><creator>Ed Matthews, Wallace</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>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-5853-1224</orcidid></search><sort><creationdate>20200701</creationdate><title>A 100-V Battery Charger Voltage Extender IC With 97% Efficiency at 4-A and ±0.5% Voltage Accuracy</title><author>Hunter, Bradford L. ; Ed Matthews, Wallace</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c293t-acbb888f524690c19de952fa6c7a37d7b94296f6f8e9a2b59cb289dcff5b62d53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Auto zero</topic><topic>Batteries</topic><topic>battery charger</topic><topic>Battery chargers</topic><topic>bi-directional</topic><topic>Buck converters</topic><topic>Charging</topic><topic>Current control</topic><topic>high voltage</topic><topic>Inductors</topic><topic>Integrated circuits</topic><topic>Lithium</topic><topic>Lithium ions</topic><topic>Low voltage</topic><topic>ping-pong amplifier</topic><topic>Rechargeable batteries</topic><topic>Resistors</topic><topic>Voltage control</topic><topic>voltage extender</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hunter, Bradford L.</creatorcontrib><creatorcontrib>Ed Matthews, Wallace</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>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on circuits and systems. I, Regular papers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hunter, Bradford L.</au><au>Ed Matthews, Wallace</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A 100-V Battery Charger Voltage Extender IC With 97% Efficiency at 4-A and ±0.5% Voltage Accuracy</atitle><jtitle>IEEE transactions on circuits and systems. I, Regular papers</jtitle><stitle>TCSI</stitle><date>2020-07-01</date><risdate>2020</risdate><volume>67</volume><issue>7</issue><spage>2492</spage><epage>2502</epage><pages>2492-2502</pages><issn>1549-8328</issn><eissn>1558-0806</eissn><coden>ITCSCH</coden><abstract>This paper presents an IC that extends the voltage capability of a low voltage battery charger to 100V for accurately and reliably charging lithium ion (Li-Ion) battery stacks of up to 18 cells. The IC interfaces with a buck converter battery charger that utilizes external nFET control and an external inductor current sensing resistor. The voltage extender IC provides voltage level translation for the nFET control signals and the current sensing function while supporting an input power supply voltage of up to 100V and output battery voltage of up to 80V. The inductor current sense voltage is translated with a ping-pong amplifier capable of driving a bi-directional input voltage to a fully differential output with a maximum load current of 10 mA at 20 MHz bandwidth and less than 500 μV offset. The combined system of the voltage extender IC and battery charger achieved 97% efficiency at a 4-A charging current. The battery charging voltage accuracy was better than ± 0.5% at 80V.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TCSI.2020.2974627</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0001-5853-1224</orcidid></addata></record> |
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| identifier | ISSN: 1549-8328 |
| ispartof | IEEE transactions on circuits and systems. I, Regular papers, 2020-07, Vol.67 (7), p.2492-2502 |
| issn | 1549-8328 1558-0806 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Auto zero Batteries battery charger Battery chargers bi-directional Buck converters Charging Current control high voltage Inductors Integrated circuits Lithium Lithium ions Low voltage ping-pong amplifier Rechargeable batteries Resistors Voltage control voltage extender |
| title | A 100-V Battery Charger Voltage Extender IC With 97% Efficiency at 4-A and ±0.5% Voltage Accuracy |
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