JP7768242B2 - 励振回路、振動装置および車両 - Google Patents

励振回路、振動装置および車両

Info

Publication number
JP7768242B2
JP7768242B2 JP2023559413A JP2023559413A JP7768242B2 JP 7768242 B2 JP7768242 B2 JP 7768242B2 JP 2023559413 A JP2023559413 A JP 2023559413A JP 2023559413 A JP2023559413 A JP 2023559413A JP 7768242 B2 JP7768242 B2 JP 7768242B2
Authority
JP
Japan
Prior art keywords
switch
circuit
frequency
current
piezoelectric element
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.)
Active
Application number
JP2023559413A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023084829A1 (https=
JPWO2023084829A5 (https=
Inventor
宣孝 岸
政明 ▲高▼田
聡 市原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of JPWO2023084829A1 publication Critical patent/JPWO2023084829A1/ja
Publication of JPWO2023084829A5 publication Critical patent/JPWO2023084829A5/ja
Application granted granted Critical
Publication of JP7768242B2 publication Critical patent/JP7768242B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive circuits
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/202—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using longitudinal or thickness displacement combined with bending, shear or torsion displacement
    • H10N30/2027—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using longitudinal or thickness displacement combined with bending, shear or torsion displacement having cylindrical or annular shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/88—Mounts; Supports; Enclosures; Casings
    • H10N30/883—Additional insulation means preventing electrical, physical or chemical damage, e.g. protective coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
JP2023559413A 2021-11-10 2022-06-20 励振回路、振動装置および車両 Active JP7768242B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021183592 2021-11-10
JP2021183592 2021-11-10
PCT/JP2022/024577 WO2023084829A1 (ja) 2021-11-10 2022-06-20 励振回路、振動装置および車両

Publications (3)

Publication Number Publication Date
JPWO2023084829A1 JPWO2023084829A1 (https=) 2023-05-19
JPWO2023084829A5 JPWO2023084829A5 (https=) 2024-07-12
JP7768242B2 true JP7768242B2 (ja) 2025-11-12

Family

ID=86335521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023559413A Active JP7768242B2 (ja) 2021-11-10 2022-06-20 励振回路、振動装置および車両

Country Status (5)

Country Link
US (1) US20240284801A1 (https=)
JP (1) JP7768242B2 (https=)
CN (1) CN118235544A (https=)
DE (1) DE112022004354T5 (https=)
WO (1) WO2023084829A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7739371B2 (ja) * 2023-09-05 2025-09-16 キヤノン株式会社 駆動回路、および記録装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000295055A (ja) 1999-04-01 2000-10-20 Matsushita Electric Ind Co Ltd 送信機および受信機
WO2005080793A1 (ja) 2004-02-23 2005-09-01 Nec Corporation 圧電ポンプ用駆動回路およびこれを用いた冷却システム
WO2006004108A1 (ja) 2004-07-07 2006-01-12 Seiko Epson Corporation 圧電アクチュエータおよび機器
JP2012249492A (ja) 2011-05-31 2012-12-13 Fujitsu Semiconductor Ltd 電圧レギュレータ
JP2014049979A (ja) 2012-08-31 2014-03-17 Canon Inc 放射線撮像装置、その駆動方法、および放射線撮像システム
US20160266379A1 (en) 2015-03-11 2016-09-15 Texas Instruments Incorporated Ultrasonic lens cleaning system with current sensing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3027692B2 (ja) * 1994-11-18 2000-04-04 赤井電機株式会社 位相差検出回路及び制御装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000295055A (ja) 1999-04-01 2000-10-20 Matsushita Electric Ind Co Ltd 送信機および受信機
WO2005080793A1 (ja) 2004-02-23 2005-09-01 Nec Corporation 圧電ポンプ用駆動回路およびこれを用いた冷却システム
WO2006004108A1 (ja) 2004-07-07 2006-01-12 Seiko Epson Corporation 圧電アクチュエータおよび機器
JP2012249492A (ja) 2011-05-31 2012-12-13 Fujitsu Semiconductor Ltd 電圧レギュレータ
JP2014049979A (ja) 2012-08-31 2014-03-17 Canon Inc 放射線撮像装置、その駆動方法、および放射線撮像システム
US20160266379A1 (en) 2015-03-11 2016-09-15 Texas Instruments Incorporated Ultrasonic lens cleaning system with current sensing

Also Published As

Publication number Publication date
DE112022004354T5 (de) 2024-07-04
CN118235544A (zh) 2024-06-21
JPWO2023084829A1 (https=) 2023-05-19
US20240284801A1 (en) 2024-08-22
WO2023084829A1 (ja) 2023-05-19

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