DE112005001697T5 - Lineare Kapazitanzmessung und berührungsloser Schalter - Google Patents
Lineare Kapazitanzmessung und berührungsloser Schalter Download PDFInfo
- Publication number
- DE112005001697T5 DE112005001697T5 DE112005001697T DE112005001697T DE112005001697T5 DE 112005001697 T5 DE112005001697 T5 DE 112005001697T5 DE 112005001697 T DE112005001697 T DE 112005001697T DE 112005001697 T DE112005001697 T DE 112005001697T DE 112005001697 T5 DE112005001697 T5 DE 112005001697T5
- Authority
- DE
- Germany
- Prior art keywords
- output
- capacitor
- operational amplifier
- differential
- capacitance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005259 measurement Methods 0.000 title description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 193
- 230000001360 synchronised effect Effects 0.000 claims description 37
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 13
- 230000000737 periodic effect Effects 0.000 claims 6
- 239000004020 conductor Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
- 238000000691 measurement method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 201000003176 Severe Acute Respiratory Syndrome Diseases 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010016275 Fear Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/955—Proximity switches using a capacitive detector
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45548—Indexing scheme relating to differential amplifiers the IC comprising one or more capacitors as shunts to earth or as short circuit between inputs
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45594—Indexing scheme relating to differential amplifiers the IC comprising one or more resistors, which are not biasing resistor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60161004P | 2004-08-16 | 2004-08-16 | |
| US60/601,610 | 2004-08-16 | ||
| US61969704P | 2004-10-19 | 2004-10-19 | |
| US60/619,697 | 2004-10-19 | ||
| US66237805P | 2005-03-17 | 2005-03-17 | |
| US60/662,378 | 2005-03-17 | ||
| US69048605P | 2005-06-15 | 2005-06-15 | |
| US60/690,486 | 2005-06-15 | ||
| PCT/CN2005/001277 WO2006017988A1 (en) | 2004-08-16 | 2005-08-16 | Linear capacitance measurement and touchless switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE112005001697T5 true DE112005001697T5 (de) | 2008-07-24 |
Family
ID=35907231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE112005001697T Withdrawn DE112005001697T5 (de) | 2004-08-16 | 2005-08-16 | Lineare Kapazitanzmessung und berührungsloser Schalter |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7323886B2 (https=) |
| JP (1) | JP4850835B2 (https=) |
| CA (2) | CA2658709C (https=) |
| DE (1) | DE112005001697T5 (https=) |
| GB (2) | GB2431246B (https=) |
| WO (1) | WO2006017988A1 (https=) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419655C (zh) * | 2005-04-08 | 2008-09-17 | 鸿富锦精密工业（深圳）有限公司 | 触摸式感应装置 |
| DE102005041112A1 (de) * | 2005-08-30 | 2007-03-01 | BSH Bosch und Siemens Hausgeräte GmbH | Kapazitiver Annäherungsschalter und Haushaltgerät mit einem solchen |
| ATE400925T1 (de) * | 2005-08-31 | 2008-07-15 | Electrolux Home Prod Corp | Durch berührung steuerbare kapazitive schalteinrichtung |
| TWI300529B (en) * | 2005-10-05 | 2008-09-01 | Holtek Semiconductor Inc | Proximaty sensing device and sensing method thereof |
| KR100649890B1 (ko) * | 2006-03-27 | 2006-11-28 | 주식회사 루트로닉 | 접촉 센서를 이용한 레이저 빔 컨트롤 장치 및 컨트롤 방법 |
| US8144125B2 (en) | 2006-03-30 | 2012-03-27 | Cypress Semiconductor Corporation | Apparatus and method for reducing average scan rate to detect a conductive object on a sensing device |
| US8040142B1 (en) * | 2006-03-31 | 2011-10-18 | Cypress Semiconductor Corporation | Touch detection techniques for capacitive touch sense systems |
| US8004497B2 (en) | 2006-05-18 | 2011-08-23 | Cypress Semiconductor Corporation | Two-pin buttons |
| JP5045023B2 (ja) * | 2006-08-09 | 2012-10-10 | パナソニック株式会社 | 入力装置 |
| JP4444933B2 (ja) * | 2006-08-29 | 2010-03-31 | 小島プレス工業株式会社 | 照明装置のタッチスイッチ |
| JP4929937B2 (ja) * | 2006-09-08 | 2012-05-09 | アイシン精機株式会社 | 静電容量検出装置 |
| US8547114B2 (en) | 2006-11-14 | 2013-10-01 | Cypress Semiconductor Corporation | Capacitance to code converter with sigma-delta modulator |
| US7501836B2 (en) * | 2006-11-14 | 2009-03-10 | Avago Technologies Enterprise IP (Singapore) Pte. Ltd. | Apparatus and method for determining capacitance variation in an integrated circuit |
| US8089288B1 (en) * | 2006-11-16 | 2012-01-03 | Cypress Semiconductor Corporation | Charge accumulation capacitance sensor with linear transfer characteristic |
| JP4302728B2 (ja) * | 2006-12-06 | 2009-07-29 | 小島プレス工業株式会社 | 車両アクセサリ用タッチスイッチ |
| US8058937B2 (en) | 2007-01-30 | 2011-11-15 | Cypress Semiconductor Corporation | Setting a discharge rate and a charge rate of a relaxation oscillator circuit |
| US8144126B2 (en) | 2007-05-07 | 2012-03-27 | Cypress Semiconductor Corporation | Reducing sleep current in a capacitance sensing system |
| US9500686B1 (en) | 2007-06-29 | 2016-11-22 | Cypress Semiconductor Corporation | Capacitance measurement system and methods |
| US8570053B1 (en) | 2007-07-03 | 2013-10-29 | Cypress Semiconductor Corporation | Capacitive field sensor with sigma-delta modulator |
| US8089289B1 (en) | 2007-07-03 | 2012-01-03 | Cypress Semiconductor Corporation | Capacitive field sensor with sigma-delta modulator |
| US8169238B1 (en) | 2007-07-03 | 2012-05-01 | Cypress Semiconductor Corporation | Capacitance to frequency converter |
| DE102007048402A1 (de) * | 2007-10-09 | 2009-04-16 | Gerd Reime | Bedieneinheit und Verfahren zur Auslösung einer Funktion |
| WO2009058745A2 (en) * | 2007-10-28 | 2009-05-07 | Synaptics Incorporated | Determining actuation of multi-sensor electrode capacitive buttons |
| US8525798B2 (en) | 2008-01-28 | 2013-09-03 | Cypress Semiconductor Corporation | Touch sensing |
| US8358142B2 (en) | 2008-02-27 | 2013-01-22 | Cypress Semiconductor Corporation | Methods and circuits for measuring mutual and self capacitance |
| US8319505B1 (en) | 2008-10-24 | 2012-11-27 | Cypress Semiconductor Corporation | Methods and circuits for measuring mutual and self capacitance |
| US9104273B1 (en) | 2008-02-29 | 2015-08-11 | Cypress Semiconductor Corporation | Multi-touch sensing method |
| US8321174B1 (en) | 2008-09-26 | 2012-11-27 | Cypress Semiconductor Corporation | System and method to measure capacitance of capacitive sensor array |
| JP2010105588A (ja) * | 2008-10-31 | 2010-05-13 | Kojima Press Industry Co Ltd | 車室内照明装置用の照明レンズ |
| RU2472106C2 (ru) * | 2008-12-23 | 2013-01-10 | Закрытое акционерное общество "Нанотехнология-МДТ" | Емкостной датчик для измерения линейных перемещений |
| JP5655223B2 (ja) | 2009-01-30 | 2015-01-21 | 株式会社フジクラ | 乗員姿勢検知装置 |
| WO2011098281A2 (en) * | 2010-02-10 | 2011-08-18 | Ident Technology Ag | System and method for the generation of a signal correlated with a manual input operation |
| JP5502597B2 (ja) * | 2010-05-24 | 2014-05-28 | ルネサスエレクトロニクス株式会社 | インピーダンス検出回路およびインピーダンス検出方法 |
| JP5712558B2 (ja) * | 2010-10-27 | 2015-05-07 | セイコーエプソン株式会社 | 信号レベル変換回路、物理量検出装置及び電子機器 |
| CN102006048B (zh) * | 2010-12-24 | 2013-03-27 | 江苏惠通集团有限责任公司 | 按键侦测板 |
| TW201232375A (en) * | 2011-01-31 | 2012-08-01 | xiang-yu Li | Measuring device for micro impedance variation |
| TWI490456B (zh) | 2011-04-29 | 2015-07-01 | Elan Microelectronics Corp | Differential Capacitance Sensing Circuit and Method |
| CN102364879A (zh) * | 2011-06-23 | 2012-02-29 | 苏州瀚瑞微电子有限公司 | 电容式触摸按键的电路结构 |
| JP2015194813A (ja) * | 2014-03-31 | 2015-11-05 | Smk株式会社 | 静電容量式タッチパネル |
| US9304643B2 (en) | 2014-06-24 | 2016-04-05 | Synaptics Incorporated | Classifying input objects interacting with a capacitive button |
| US10114515B2 (en) * | 2015-10-26 | 2018-10-30 | Semiconductor Components Industries, Llc | Methods and apparatus for a capacitive sensor |
| US11291252B2 (en) * | 2015-12-18 | 2022-04-05 | Rai Strategic Holdings, Inc. | Proximity sensing for an aerosol delivery device |
| IT201600103234A1 (it) | 2016-10-14 | 2018-04-14 | Green Seas Ventures Ldt | Sistema Costruttivo afferente un sensore capacitivo di tensione |
| EP4089424B1 (en) * | 2016-12-21 | 2023-09-13 | Alps Alpine Co., Ltd. | Capacitance detection device and input device |
| IT201800004114A1 (it) * | 2018-03-30 | 2019-09-30 | Green Seas Ventures Ltd C/O Citco B V I Ltd | Sistema costruttivo afferente un sensore capacitivo di tensione |
| JP7155653B2 (ja) | 2018-06-22 | 2022-10-19 | コニカミノルタ株式会社 | 駆動装置、画像形成装置、および制御プログラム |
| MX2021007244A (es) | 2018-12-17 | 2021-07-15 | G & W Electric | Montaje de sensor electrico. |
| EP3899557A4 (en) | 2018-12-17 | 2022-10-26 | G & W Electric Company | ELECTRIC DETECTOR ASSEMBLY |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6310611B1 (en) | 1996-12-10 | 2001-10-30 | Touchsensor Technologies, Llc | Differential touch sensor and control circuit therefor |
| US6456477B1 (en) | 1998-03-10 | 2002-09-24 | Mcintosh Robert B. | Linear capacitance detection circuit |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623536B2 (https=) * | 1973-01-22 | 1981-06-01 | ||
| US3909625A (en) * | 1973-07-30 | 1975-09-30 | Magic Dot Inc | Touch actuated electronic switch |
| US4550221A (en) * | 1983-10-07 | 1985-10-29 | Scott Mabusth | Touch sensitive control device |
| IT1213243B (it) * | 1984-11-12 | 1989-12-14 | Ates Componenti Elettron | Circuito buffer a struttura differenziale per la misurazione di cariche capacitive. |
| JPS63502540A (ja) * | 1986-01-30 | 1988-09-22 | インテレクト エレクトロニクス リミテツド | 近接検出装置 |
| GB2205210B (en) * | 1987-05-27 | 1991-04-24 | Mitsubishi Electric Corp | Amplifier circuit including single capacitor for dc differential-input balance |
| JP2934672B2 (ja) * | 1989-07-03 | 1999-08-16 | 直之 大纒 | 静電容量型検出装置 |
| US5442347A (en) * | 1993-01-25 | 1995-08-15 | The United States Of America As Represented By The Administrater, National Aeronautics & Space Administration | Double-driven shield capacitive type proximity sensor |
| GB9404416D0 (en) | 1994-03-08 | 1994-04-20 | Turner Intellect Property Ltd | Device for finding concealed studs |
| JP3233791B2 (ja) | 1994-08-25 | 2001-11-26 | 株式会社山武 | 差動容量反転積分器及びこれを用いた静電容量変化量検出装置 |
| US5594222A (en) * | 1994-10-25 | 1997-01-14 | Integrated Controls | Touch sensor and control circuit therefor |
| JP2561040B2 (ja) | 1994-11-28 | 1996-12-04 | 日本電気株式会社 | 容量型センサの容量変化検出回路およびその検出方法 |
| DE19536198B4 (de) * | 1995-09-28 | 2006-03-30 | Endress + Hauser Gmbh + Co. Kg | Kapazitiver Schalter |
| JPH09280806A (ja) | 1996-04-09 | 1997-10-31 | Nissan Motor Co Ltd | 静電容量式変位計 |
| US5986497A (en) * | 1997-05-16 | 1999-11-16 | Mitsubishi Denki Kabushiki Kaisha | Interface circuit for capacitive sensor |
| JPH1167030A (ja) | 1997-08-08 | 1999-03-09 | Tietech Co Ltd | タッチレススイッチ |
| JP2002538469A (ja) * | 1999-03-05 | 2002-11-12 | オートモーティブ システムズ ラボラトリー インコーポレーテッド | 近接センサ |
| DE19943618C1 (de) * | 1999-09-11 | 2001-05-31 | Bayerische Motoren Werke Ag | Kapazitiver Intrusionssensor und Sensorsystem mit einem solchen Sensor |
| US6366099B1 (en) | 1999-12-21 | 2002-04-02 | Conrad Technologies, Inc. | Differential capacitance sampler |
| US6501282B1 (en) * | 2000-09-29 | 2002-12-31 | Rockwell Automation Technologies, Inc. | Highly sensitive capacitance comparison circuit |
| US6462562B1 (en) | 2000-11-28 | 2002-10-08 | Bechtel Bwxt Idaho, Llc | Differential capacitance probe for process control involving aqueous dielectric fluids |
| JP4336066B2 (ja) * | 2001-07-11 | 2009-09-30 | 株式会社豊田中央研究所 | 静電容量型センサ装置 |
| JP4035418B2 (ja) * | 2001-10-31 | 2008-01-23 | 株式会社本田電子技研 | 近接スイッチおよび物体検出装置 |
| US6842018B2 (en) * | 2002-05-08 | 2005-01-11 | Mcintosh Robert B. | Planar capacitive transducer |
| JP2004022356A (ja) * | 2002-06-17 | 2004-01-22 | Omron Corp | タッチスイッチ |
| US6922063B2 (en) * | 2003-07-11 | 2005-07-26 | Zircon Corporation | Apparatus and method for capacitive level sensor |
| JP2005140657A (ja) * | 2003-11-07 | 2005-06-02 | Denso Corp | 静電容量型センサの容量変化検出回路 |
-
2005
- 2005-08-12 US US11/202,486 patent/US7323886B2/en not_active Expired - Fee Related
- 2005-08-16 WO PCT/CN2005/001277 patent/WO2006017988A1/en not_active Ceased
- 2005-08-16 DE DE112005001697T patent/DE112005001697T5/de not_active Withdrawn
- 2005-08-16 CA CA2658709A patent/CA2658709C/en not_active Expired - Fee Related
- 2005-08-16 GB GB0701267A patent/GB2431246B/en not_active Expired - Fee Related
- 2005-08-16 GB GB0817444A patent/GB2451765B/en not_active Expired - Fee Related
- 2005-08-16 JP JP2007526181A patent/JP4850835B2/ja not_active Expired - Fee Related
- 2005-08-16 CA CA2575648A patent/CA2575648C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6310611B1 (en) | 1996-12-10 | 2001-10-30 | Touchsensor Technologies, Llc | Differential touch sensor and control circuit therefor |
| US6456477B1 (en) | 1998-03-10 | 2002-09-24 | Mcintosh Robert B. | Linear capacitance detection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2451765B8 (en) | 2009-05-06 |
| GB2431246A (en) | 2007-04-18 |
| WO2006017988A1 (en) | 2006-02-23 |
| JP2008510396A (ja) | 2008-04-03 |
| JP4850835B2 (ja) | 2012-01-11 |
| US20060033508A1 (en) | 2006-02-16 |
| GB2451765A (en) | 2009-02-11 |
| GB0701267D0 (en) | 2007-02-28 |
| CA2575648A1 (en) | 2006-02-23 |
| CA2658709C (en) | 2013-06-25 |
| CA2575648C (en) | 2010-09-28 |
| HK1102314A1 (zh) | 2007-11-16 |
| GB0817444D0 (en) | 2008-10-29 |
| GB2431246B (en) | 2009-01-14 |
| US7323886B2 (en) | 2008-01-29 |
| GB2451765B (en) | 2009-05-06 |
| CA2658709A1 (en) | 2006-02-23 |
| GB2451765A8 (en) | 2009-02-11 |
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