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1. WO2022009820 - DRIVE CIRCUIT FOR PIEZOELECTRIC CERAMIC ELEMENT, AND METHOD FOR USING SAID DRIVE CIRCUIT

Publication Number WO/2022/009820
Publication Date 13.01.2022
International Application No. PCT/JP2021/025243
International Filing Date 05.07.2021
IPC
B06B 1/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
BGENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
1Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
02making use of electrical energy
06operating with piezo-electric effect or with electrostriction
H01L 41/04 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
02Details
04of piezo-electric or electrostrictive elements
H01L 41/09 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive elements
09with electrical input and mechanical output
H01L 41/187 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
16Selection of materials
18for piezo-electric or electrostrictive elements
187Ceramic compositions
H01L 41/257 2013.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
22Processes or apparatus specially adapted for the assembly, manufacture or treatment of piezo-electric or electrostrictive devices or of parts thereof
253Treating devices or parts thereof to modify a piezo-electric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
257by polarising
H02N 2/06 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
02producing linear motion, e.g. actuators; Linear positioners
06Drive circuits; Control arrangements
Applicants
  • 太陽誘電株式会社 TAIYO YUDEN CO., LTD. [JP]/[JP]
Inventors
  • 石井 茂雄 ISHII Shigeo
  • 岸 弘志 KISHI Hiroshi
  • 後藤 隆幸 GOTO Takayuki
  • 森田 浩一郎 MORITA Koichiro
  • 岸本 純明 KISHIMOTO Sumiaki
  • 清水 寛之 SHIMIZU Hiroyuki
Agents
  • 相田 悟 AIDA Satoru
Priority Data
2020-11638706.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) DRIVE CIRCUIT FOR PIEZOELECTRIC CERAMIC ELEMENT, AND METHOD FOR USING SAID DRIVE CIRCUIT
(FR) CIRCUIT D'ENTRAÎNEMENT POUR ÉLÉMENT CÉRAMIQUE PIÉZOÉLECTRIQUE, ET PROCÉDÉ D'UTILISATION DUDIT CIRCUIT D'ENTRAÎNEMENT
(JA) 圧電セラミックス素子の駆動回路及びその使用方法
Abstract
(EN) A drive circuit for a piezoelectric ceramic element according to one aspect of the present invention comprises a drive control unit that generates a voltage for controlling the driving of a piezoelectric ceramic element, a pulse voltage generation unit that generates a pulse voltage, and a switching unit that switches the piezoelectric ceramic element to being connected to the drive control unit after piezoelectric ceramic element has been connected to the pulse voltage generation unit during circuit startup.
(FR) Un circuit d'entraînement pour un élément céramique piézoélectrique selon un aspect de la présente invention comprend une unité de commande d'entraînement qui génère une tension pour commander l'entraînement d'un élément céramique piézoélectrique, une unité de génération de tension d'impulsion qui génère une tension d'impulsion, et une unité de commutation qui commute l'élément céramique piézoélectrique pour être connecté à l'unité de commande d'entraînement après que l'élément céramique piézoélectrique a été connecté à l'unité de génération de tension d'impulsion pendant le démarrage du circuit.
(JA) 本発明の一態様に係る圧電セラミックス素子の駆動回路は、圧電セラミックス素子の駆動を制御するための電圧を発生する駆動制御部と、パルス電圧を発生するパルス電圧発生部と、圧電セラミックス素子を、回路起動時に前記パルス電圧発生部に接続した後、前記駆動制御部への接続に切り替えるスイッチ部とを備えるものである。
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