JP4855343B2 - 可動子の駆動装置、その制御回路およびタッチパネル装置 - Google Patents
可動子の駆動装置、その制御回路およびタッチパネル装置 Download PDFInfo
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- JP4855343B2 JP4855343B2 JP2007157633A JP2007157633A JP4855343B2 JP 4855343 B2 JP4855343 B2 JP 4855343B2 JP 2007157633 A JP2007157633 A JP 2007157633A JP 2007157633 A JP2007157633 A JP 2007157633A JP 4855343 B2 JP4855343 B2 JP 4855343B2
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- voltage
- control circuit
- touch panel
- output
- mover
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- 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.)
- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 claims description 17
- 230000004044 response Effects 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000009499 grossing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000000470 constituent Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Human Computer Interaction (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Position Input By Displaying (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Dc-Dc Converters (AREA)
Description
この場合、テーブルの信号波形に応じて、可動子に対してさまざまな任意の駆動電圧を供給できる。
タッチパネル2は、可動子4、入力検出部6を備える。入力検出部6は、タッチパネル2のユーザがパネルに入力を行ったか、すなわちパネルを押圧したがどうかを判定し、判定結果を検出信号S1として出力する。駆動装置110は、検出信号S1を受け、ユーザがタッチパネルを押圧すると、可動子4に対して駆動電圧Vdrvを出力する。可動子4は駆動電圧Vdrvが印加されるとタッチパネル2を振動させ、ユーザに押圧感を与える。
スイッチング素子SW1、検出抵抗R4は、スイッチング端子102と接地端子間に、すなわち1次コイルL1の電流経路上に、直列に設けられる。検出抵抗R4は、1次コイルL1に流れる電流I1を電圧に変換し、プリドライバ18へと出力する。
時刻t0に、ユーザがタッチパネル2を押圧すると、検出信号S1がハイレベルとなる。これを受けて、基準電圧生成部20はテーブル24から波形データを読み出し、読み出したデータをD/A変換して基準電圧Vrefを生成する。
Claims (4)
- タッチパネルのフォースフィードバック用に設けられた可動子を駆動する駆動装置の制御回路であって、
前記可動子に印加すべき信号波形を有する基準電圧を生成する基準電圧生成部と、
前記可動子に印加される駆動電圧に応じた帰還電圧が前記基準電圧に近づくように、帰還によりデューティ比が制御されるパルス信号を生成するパルス変調器と、
を含み、
前記パルス変調器からの前記パルス信号によって、DC/DCコンバータのスイッチング素子をオン、オフすることにより、前記DC/DCコンバータの出力電圧を制御し、前記出力電圧に応じた駆動電圧を前記可動子に印加することを特徴とする制御回路。 - 前記基準電圧生成部は、
所定の信号波形を保持するテーブルと、
前記可動子の押圧に応じて前記タッチパネルから出力される検出信号を受けると、前記テーブルから前記信号波形を読み出し、デジタルアナログ変換するデジタルアナログ変換器と、
を含み、前記デジタルアナログ変換器の出力を、前記基準電圧として出力することを特徴とする請求項1に記載の制御回路。 - 請求項1に記載の2つの制御回路と、
前記2つの制御回路からのパルス信号により制御される2つのDC/DCコンバータと、
を備え、
それぞれの制御回路において、互いに逆相となる基準電圧を生成して、それぞれのDC/DCコンバータの出力電圧が互いに逆相となるように制御し、2つのDC/DCコンバータの出力電圧を可動子の両端に印加することを特徴とする駆動装置。 - タッチパネルと、
前記タッチパネルに設けられた可動子と、
請求項1または2に記載の制御回路と、
前記制御回路から出力されるパルス信号によって制御されるDC/DCコンバータと、
を備え、前記DC/DCコンバータの出力電圧を前記可動子に印加することを特徴とするタッチパネル装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007157633A JP4855343B2 (ja) | 2007-06-14 | 2007-06-14 | 可動子の駆動装置、その制御回路およびタッチパネル装置 |
KR1020080055129A KR20080110505A (ko) | 2007-06-14 | 2008-06-12 | 가동자의 구동 장치, 그 제어 회로 및 터치 패널 장치 |
US12/138,609 US7868744B2 (en) | 2007-06-14 | 2008-06-13 | Driving apparatus of mover |
CN200810125979XA CN101324823B (zh) | 2007-06-14 | 2008-06-16 | 可动元件的驱动装置、其控制电路以及触摸屏装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007157633A JP4855343B2 (ja) | 2007-06-14 | 2007-06-14 | 可動子の駆動装置、その制御回路およびタッチパネル装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008310580A JP2008310580A (ja) | 2008-12-25 |
JP4855343B2 true JP4855343B2 (ja) | 2012-01-18 |
Family
ID=40131739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007157633A Expired - Fee Related JP4855343B2 (ja) | 2007-06-14 | 2007-06-14 | 可動子の駆動装置、その制御回路およびタッチパネル装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7868744B2 (ja) |
JP (1) | JP4855343B2 (ja) |
KR (1) | KR20080110505A (ja) |
CN (1) | CN101324823B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102426825B (zh) * | 2011-10-12 | 2014-01-08 | 深圳市华星光电技术有限公司 | 一种pwm电压调节电路及其调节方法、液晶显示装置 |
KR102334381B1 (ko) * | 2015-08-10 | 2021-12-02 | 삼성전자 주식회사 | 그라운드 모듈레이션을 이용하는 터치 디스플레이 시스템 |
GB2587198B (en) * | 2019-09-17 | 2021-12-15 | Cambridge Mechatronics Ltd | A Power Supply Arrangement |
US11531438B2 (en) * | 2020-05-29 | 2022-12-20 | Apple Inc. | Differential drive and sense for touch sensor panel |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4695776A (en) * | 1985-12-23 | 1987-09-22 | Sunstrand Corporation | Power converter for an electrically-compensated constant speed drive |
JP2666167B2 (ja) * | 1992-08-24 | 1997-10-22 | ティーディーケイ株式会社 | 圧電振動子駆動回路 |
JP3425900B2 (ja) * | 1999-07-26 | 2003-07-14 | エヌイーシーマイクロシステム株式会社 | スイッチングレギュレータ |
JP4420364B2 (ja) | 2000-06-06 | 2010-02-24 | Smk株式会社 | タッチパネルの押圧感発生装置 |
JP3636321B2 (ja) * | 2002-04-24 | 2005-04-06 | ローム株式会社 | スイッチング電源装置 |
JP4079752B2 (ja) * | 2002-11-08 | 2008-04-23 | 沖電気工業株式会社 | 加入者回路 |
US6894910B1 (en) * | 2003-03-03 | 2005-05-17 | Lockheed Martin Corporation | Dynamic duty cycle clamping for switching converters |
JP3708088B2 (ja) * | 2003-03-28 | 2005-10-19 | Tdk株式会社 | スイッチング電源の出力制御方法、出力制御回路およびスイッチング電源 |
JP3710454B2 (ja) * | 2003-03-31 | 2005-10-26 | Tdk株式会社 | 電源装置及びその制御装置 |
JP4424729B2 (ja) * | 2004-02-05 | 2010-03-03 | Smk株式会社 | タブレット装置 |
JP2007034991A (ja) * | 2005-07-29 | 2007-02-08 | Sony Corp | タッチパネルディスプレイ装置、タッチパネルディスプレイ装置を備えた電子機器、及びタッチパネルディスプレイ装置を備えたカメラ |
CN100483908C (zh) * | 2006-09-11 | 2009-04-29 | 天津英诺华微电子技术有限公司 | 脉冲频率调制型dc/dc升压转换器 |
-
2007
- 2007-06-14 JP JP2007157633A patent/JP4855343B2/ja not_active Expired - Fee Related
-
2008
- 2008-06-12 KR KR1020080055129A patent/KR20080110505A/ko not_active Application Discontinuation
- 2008-06-13 US US12/138,609 patent/US7868744B2/en active Active
- 2008-06-16 CN CN200810125979XA patent/CN101324823B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2008310580A (ja) | 2008-12-25 |
US20080309467A1 (en) | 2008-12-18 |
CN101324823B (zh) | 2013-01-16 |
US7868744B2 (en) | 2011-01-11 |
CN101324823A (zh) | 2008-12-17 |
KR20080110505A (ko) | 2008-12-18 |
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