A Dual Charge Pump for Quiescent Touch Sensor Power Supply
This brief presents a dual charge pump suitable for touch sensor power supply applications, where a calm standby voltage as well as quick recovery from disturbance is required. The proposed circuit adaptively controls the two parallel-connected charge pumps: a current driving Dickson's charge p...
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| Veröffentlicht in: | IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2012-11, Vol.59 (11), p.780-784 |
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| container_end_page | 784 |
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| container_title | IEEE transactions on circuits and systems. II, Express briefs |
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| creator | Baek, Jong-Min Seo, Dong-Jin Chun, Jung-Hoon Kwon, Kee-Won |
| description | This brief presents a dual charge pump suitable for touch sensor power supply applications, where a calm standby voltage as well as quick recovery from disturbance is required. The proposed circuit adaptively controls the two parallel-connected charge pumps: a current driving Dickson's charge pump with a pumping capacitor of 95.4 pF and a low-ripple cross-couple charge pump with a capacitor of 10.6 pF. The heavy-duty Dickson's pump turns on for swift recovery from the drastic charge loss and turns off for reduced noise during the hold-and-sensing period. An instantaneous pumping stroke of the charge pump controller and a low dropout following the charge pumps further reduce supply noise. The proposed circuit is fabricated using a 0.18-μm CMOS process. Measurement results show a recharge time shorter than 1 μs and supply noise less than the detection limit. The area penalty is less than 1% compared to a single charge pump. |
| doi_str_mv | 10.1109/TCSII.2012.2218475 |
| format | Article |
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The proposed circuit adaptively controls the two parallel-connected charge pumps: a current driving Dickson's charge pump with a pumping capacitor of 95.4 pF and a low-ripple cross-couple charge pump with a capacitor of 10.6 pF. The heavy-duty Dickson's pump turns on for swift recovery from the drastic charge loss and turns off for reduced noise during the hold-and-sensing period. An instantaneous pumping stroke of the charge pump controller and a low dropout following the charge pumps further reduce supply noise. The proposed circuit is fabricated using a 0.18-μm CMOS process. Measurement results show a recharge time shorter than 1 μs and supply noise less than the detection limit. The area penalty is less than 1% compared to a single charge pump.</description><identifier>ISSN: 1549-7747</identifier><identifier>EISSN: 1558-3791</identifier><identifier>DOI: 10.1109/TCSII.2012.2218475</identifier><identifier>CODEN: ICSPE5</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Capacitive touch ; Capacitors ; charge pump ; Charge pumps ; Circuits ; Clocks ; CMOS integrated circuits ; dc-dc converter ; Integrated circuits ; low ripple ; Noise ; Power supplies ; Power supply ; Recovery ; Semiconductors ; Sensors ; Tactile sensors ; Touch</subject><ispartof>IEEE transactions on circuits and systems. II, Express briefs, 2012-11, Vol.59 (11), p.780-784</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Nov 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-207d5ca90b060d0a80b9cada52c8ee5a0c9cc064881e88540a2b493b91e0b03</citedby><cites>FETCH-LOGICAL-c328t-207d5ca90b060d0a80b9cada52c8ee5a0c9cc064881e88540a2b493b91e0b03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6352870$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6352870$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Baek, Jong-Min</creatorcontrib><creatorcontrib>Seo, Dong-Jin</creatorcontrib><creatorcontrib>Chun, Jung-Hoon</creatorcontrib><creatorcontrib>Kwon, Kee-Won</creatorcontrib><title>A Dual Charge Pump for Quiescent Touch Sensor Power Supply</title><title>IEEE transactions on circuits and systems. II, Express briefs</title><addtitle>TCSII</addtitle><description>This brief presents a dual charge pump suitable for touch sensor power supply applications, where a calm standby voltage as well as quick recovery from disturbance is required. The proposed circuit adaptively controls the two parallel-connected charge pumps: a current driving Dickson's charge pump with a pumping capacitor of 95.4 pF and a low-ripple cross-couple charge pump with a capacitor of 10.6 pF. The heavy-duty Dickson's pump turns on for swift recovery from the drastic charge loss and turns off for reduced noise during the hold-and-sensing period. An instantaneous pumping stroke of the charge pump controller and a low dropout following the charge pumps further reduce supply noise. The proposed circuit is fabricated using a 0.18-μm CMOS process. Measurement results show a recharge time shorter than 1 μs and supply noise less than the detection limit. The area penalty is less than 1% compared to a single charge pump.</description><subject>Capacitive touch</subject><subject>Capacitors</subject><subject>charge pump</subject><subject>Charge pumps</subject><subject>Circuits</subject><subject>Clocks</subject><subject>CMOS integrated circuits</subject><subject>dc-dc converter</subject><subject>Integrated circuits</subject><subject>low ripple</subject><subject>Noise</subject><subject>Power supplies</subject><subject>Power supply</subject><subject>Recovery</subject><subject>Semiconductors</subject><subject>Sensors</subject><subject>Tactile sensors</subject><subject>Touch</subject><issn>1549-7747</issn><issn>1558-3791</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1PwzAMhiMEEmPwB-BSiQuXDidp2oTbVL4mTWKou0dp5rFNXVuSRWj_nowhDpxsWc9r2Q8h1xRGlIK6n5fVZDJiQNmIMSqzQpyQARVCprxQ9PTQZyotiqw4JxfebwCYAs4G5GGcPAbTJOXKuA9MZmHbJ8vOJe9hjd5iu0vmXbCrpMLWx_Gs-0KXVKHvm_0lOVuaxuPVbx2S6vlpXr6m07eXSTmeppYzuUsZFAthjYIacliAkVAraxZGMCsRhQGrrIU8k5KilCIDw-pM8VpRjBE-JHfHrb3rPgP6nd6u42FNY1rsgteUU5HnWXwoorf_0E0XXBtv05TlEhSXTEWKHSnrOu8dLnXv1lvj9pqCPsjUPzL1Qab-lRlDN8fQGhH_AjkXTBbAvwGzTG4l</recordid><startdate>20121101</startdate><enddate>20121101</enddate><creator>Baek, Jong-Min</creator><creator>Seo, Dong-Jin</creator><creator>Chun, Jung-Hoon</creator><creator>Kwon, Kee-Won</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><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20121101</creationdate><title>A Dual Charge Pump for Quiescent Touch Sensor Power Supply</title><author>Baek, Jong-Min ; Seo, Dong-Jin ; Chun, Jung-Hoon ; Kwon, Kee-Won</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-207d5ca90b060d0a80b9cada52c8ee5a0c9cc064881e88540a2b493b91e0b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Capacitive touch</topic><topic>Capacitors</topic><topic>charge pump</topic><topic>Charge pumps</topic><topic>Circuits</topic><topic>Clocks</topic><topic>CMOS integrated circuits</topic><topic>dc-dc converter</topic><topic>Integrated circuits</topic><topic>low ripple</topic><topic>Noise</topic><topic>Power supplies</topic><topic>Power supply</topic><topic>Recovery</topic><topic>Semiconductors</topic><topic>Sensors</topic><topic>Tactile sensors</topic><topic>Touch</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baek, Jong-Min</creatorcontrib><creatorcontrib>Seo, Dong-Jin</creatorcontrib><creatorcontrib>Chun, Jung-Hoon</creatorcontrib><creatorcontrib>Kwon, Kee-Won</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005–Present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998–Present</collection><collection>IEEE Xplore</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE transactions on circuits and systems. II, Express briefs</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Baek, Jong-Min</au><au>Seo, Dong-Jin</au><au>Chun, Jung-Hoon</au><au>Kwon, Kee-Won</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Dual Charge Pump for Quiescent Touch Sensor Power Supply</atitle><jtitle>IEEE transactions on circuits and systems. II, Express briefs</jtitle><stitle>TCSII</stitle><date>2012-11-01</date><risdate>2012</risdate><volume>59</volume><issue>11</issue><spage>780</spage><epage>784</epage><pages>780-784</pages><issn>1549-7747</issn><eissn>1558-3791</eissn><coden>ICSPE5</coden><abstract>This brief presents a dual charge pump suitable for touch sensor power supply applications, where a calm standby voltage as well as quick recovery from disturbance is required. The proposed circuit adaptively controls the two parallel-connected charge pumps: a current driving Dickson's charge pump with a pumping capacitor of 95.4 pF and a low-ripple cross-couple charge pump with a capacitor of 10.6 pF. The heavy-duty Dickson's pump turns on for swift recovery from the drastic charge loss and turns off for reduced noise during the hold-and-sensing period. An instantaneous pumping stroke of the charge pump controller and a low dropout following the charge pumps further reduce supply noise. The proposed circuit is fabricated using a 0.18-μm CMOS process. Measurement results show a recharge time shorter than 1 μs and supply noise less than the detection limit. The area penalty is less than 1% compared to a single charge pump.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TCSII.2012.2218475</doi><tpages>5</tpages></addata></record> |
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| ispartof | IEEE transactions on circuits and systems. II, Express briefs, 2012-11, Vol.59 (11), p.780-784 |
| issn | 1549-7747 1558-3791 |
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| source | IEEE Xplore |
| subjects | Capacitive touch Capacitors charge pump Charge pumps Circuits Clocks CMOS integrated circuits dc-dc converter Integrated circuits low ripple Noise Power supplies Power supply Recovery Semiconductors Sensors Tactile sensors Touch |
| title | A Dual Charge Pump for Quiescent Touch Sensor Power Supply |
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