CN104704326B - 使用电容性感测来控制风扇电机 - Google Patents
使用电容性感测来控制风扇电机 Download PDFInfo
- Publication number
- CN104704326B CN104704326B CN201380052406.8A CN201380052406A CN104704326B CN 104704326 B CN104704326 B CN 104704326B CN 201380052406 A CN201380052406 A CN 201380052406A CN 104704326 B CN104704326 B CN 104704326B
- Authority
- CN
- China
- Prior art keywords
- metallic plate
- rotor
- electric capacity
- time
- plate
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
- G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
- G01D5/2412—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
- G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
- G01P13/045—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/483—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable capacitance detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Brushless Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims (26)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261680929P | 2012-08-08 | 2012-08-08 | |
US61/680,929 | 2012-08-08 | ||
US13/962,452 US9941774B2 (en) | 2012-08-08 | 2013-08-08 | Controlling fan motors using capacitive sensing |
US13/962,452 | 2013-08-08 | ||
PCT/US2013/054144 WO2014026006A2 (en) | 2012-08-08 | 2013-08-08 | Controlling fan motors using capacitive sensing |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104704326A CN104704326A (zh) | 2015-06-10 |
CN104704326B true CN104704326B (zh) | 2017-07-11 |
Family
ID=50065695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201380052406.8A Expired - Fee Related CN104704326B (zh) | 2012-08-08 | 2013-08-08 | 使用电容性感测来控制风扇电机 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9941774B2 (zh) |
CN (1) | CN104704326B (zh) |
WO (1) | WO2014026006A2 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109348329B (zh) * | 2018-09-30 | 2020-11-17 | 歌尔科技有限公司 | 一种耳机及音频信号的输出方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1437785A (en) * | 1972-11-30 | 1976-06-03 | Ferranti Ltd | Dc electric motors |
AT382262B (de) * | 1982-04-16 | 1987-02-10 | Ki Polt I | Piezoelektrischer motor |
US4694235A (en) * | 1986-08-01 | 1987-09-15 | General Scanning, Inc. | Capacitive position sensor |
DE4016434A1 (de) * | 1990-05-22 | 1991-11-28 | Bosch Gmbh Robert | Kapazitiver stellungsgeber |
US5691646A (en) * | 1994-12-07 | 1997-11-25 | Mitutoya Corporation | Capacitance-type displacement measuring device with electrodes having spiral patterns |
JP3256443B2 (ja) * | 1996-09-20 | 2002-02-12 | 株式会社ミツトヨ | 静電容量式変位測定装置 |
SE511896C2 (sv) * | 1996-12-04 | 1999-12-13 | Vilmos Toeroek | Elektrisk rotationsmotor med utpräglade poler |
DE10133216B4 (de) * | 2001-07-09 | 2005-01-27 | Tecpharma Licensing Ag | Positionsdetektion |
TW571505B (en) * | 2001-08-09 | 2004-01-11 | Asulab Sa | Piezoelectric motor |
JP4193685B2 (ja) * | 2003-12-15 | 2008-12-10 | 日産自動車株式会社 | アキシャルギャップモータ構造 |
DE112008002132A5 (de) * | 2007-08-29 | 2010-06-24 | Dr. Fritz Faulhaber Gmbh & Co. Kg | Kleinst-Elektromotor mit integriertem Encoder sowie kapazitiver Positionscodierer hierfür |
EP2304863B1 (en) * | 2008-07-30 | 2018-06-27 | Regal Beloit America, Inc. | Interior permanent magnet motor including rotor with unequal poles |
US8807956B2 (en) * | 2008-11-13 | 2014-08-19 | Marvell World Trade Ltd. | Apparatus and method for controlling speed of a fan via a first control module connected by a cable and/or conductors between a motor and a second control module |
WO2012035434A2 (en) * | 2010-09-17 | 2012-03-22 | Marvell World Trade Ltd. | Back-emf detection for motor control |
DE102010046778B4 (de) * | 2010-09-28 | 2017-11-02 | Trw Automotive Electronics & Components Gmbh | Kapazitiver Drehgeber |
CN102087091B (zh) * | 2010-11-09 | 2012-11-07 | 浙江大学 | 基于柱状电容传感器的主轴六自由度位移解耦测量方法 |
-
2013
- 2013-08-08 US US13/962,452 patent/US9941774B2/en not_active Expired - Fee Related
- 2013-08-08 CN CN201380052406.8A patent/CN104704326B/zh not_active Expired - Fee Related
- 2013-08-08 WO PCT/US2013/054144 patent/WO2014026006A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US9941774B2 (en) | 2018-04-10 |
US20140042877A1 (en) | 2014-02-13 |
WO2014026006A3 (en) | 2014-12-24 |
WO2014026006A2 (en) | 2014-02-13 |
CN104704326A (zh) | 2015-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
EXSB | Decision made by sipo to initiate substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200430 Address after: Singapore City Patentee after: Marvell Asia Pte. Ltd. Address before: Ford street, Grand Cayman, Cayman Islands Patentee before: Kaiwei international Co. Effective date of registration: 20200430 Address after: Ford street, Grand Cayman, Cayman Islands Patentee after: Kaiwei international Co. Address before: Hamilton, Bermuda Patentee before: Marvell International Ltd. Effective date of registration: 20200430 Address after: Hamilton, Bermuda Patentee after: Marvell International Ltd. Address before: Babado J San Mega Le Patentee before: MARVELL WORLD TRADE Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20200808 |
|
CF01 | Termination of patent right due to non-payment of annual fee |