公开(公告)号：US09385296B2

公开(公告)日：2016-07-05

申请号：US14278166

申请日：2014-05-15

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Noboru Nitta

IPC: H02J7/00 ,  H01L41/04 ,  B41J2/045

CPC classification number: H01L41/042 ,  B41J2/04506 ,  B41J2/0452 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04596 ,  B41J2202/10

Abstract: An actuator is sequentially charged with output voltage “E/2” of a voltage source and output voltage “E” of a voltage source. After the charging, “Q/2” of electric charge “Q” stored in the actuator is discharged on a path returning to the voltage source. Subsequent to the discharging, the remaining all electric charge “Q/2” stored in the actuator is discharged on a closed circuit.

Abstract translation: 致动器依次充满电压源的输出电压“E / 2”和电压源的输出电压“E”。 在充电之后，存储在致动器中的电荷“Q”的“Q / 2”在返回到电压源的路径上放电。 在放电之后，存储在致动器中的剩余全部电荷“Q / 2”在闭合电路上放电。

公开(公告)号：US20160163953A1

公开(公告)日：2016-06-09

申请号：US14229776

申请日：2014-03-28

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Chan Woo Park

IPC: H01L41/04

CPC classification number: H01L41/042

Abstract: A piezoelectric actuator driving device may include: a control unit receiving waveform information including information on an output waveform to output digital values for generating the output waveform; a sampling clock generation unit using the output waveform to generate a variable sampling clock; and a digital-to-analog conversion unit outputting analog values corresponding to the digital values based on the variable sampling clock.

Abstract translation: 压电致动器驱动装置可以包括：控制单元，接收包括关于输出波形的信息的波形信息，以输出用于产生输出波形的数字值; 使用所述输出波形来生成可变采样时钟的采样时钟生成单元; 以及数模转换单元，其基于所述可变采样时钟输出与所述数字值对应的模拟值。

公开(公告)号：US09318686B2

公开(公告)日：2016-04-19

申请号：US14362609

申请日：2012-12-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Antonia Cornelia Van Rens

IPC: H01L41/04 ,  B06B1/02

CPC classification number: H01L41/042 ,  B06B1/023

Abstract: The present invention relates to a driver device (40; 60) for driving a capacitive load (12), in particular an ultrasound transducer (12) having one or more transducer elements, comprising an output terminal (42; 68) for providing an alternating drive voltage (V14; V22) to the load (12), a plurality of voltage supply elements (46, 48, 50, 52; 72, 74) for providing intermediate voltage levels (V16), a plurality of controllable connecting means (S0-S7) each associated to one of the voltage supply elements (46, 48, 50, 52; 72, 74) for connecting the voltage supply elements (46, 48, 50, 52; 72, 74) to the output terminal (42; 68) and for supplying one of the intermediate voltage levels (V16) or a sum of a plurality of the intermediate voltage levels (V16) as the alternating drive voltage (V14; V22) to the output terminal.

Abstract translation: 本发明涉及用于驱动电容性负载（12）的驱动器件（40; 60），特别是具有一个或多个换能器元件的超声换能器（12），该超声换能器包括一个输出端子（42; 68） 用于提供中间电压电平（V16）的多个电压供应元件（46,48,50,52; 72,74），多个可控制的连接装置（S0 -S7），其与电压供给元件（46,48,50,52; 72,74）中的一个相关联，用于将电压供给元件（46,48,50,52; 72,74）连接到输出端子（42） ; 68），并且用于将中间电压电平（V16）中的一个或多个中间电压电平（V16）的和作为交替驱动电压（V14; V22）提供给输出端子。

公开(公告)号：US20160104593A1

公开(公告)日：2016-04-14

申请号：US14972409

申请日：2015-12-17

Applicant: 19th Space Electronics

Inventor： Lizon Maharjan ,  Babak Fahimi ,  Daniel Christopher Dial ,  Joseph Hearron ,  Job Timothy Brunet ,  Carlos Caicedo-Narvaez ,  Arash Hassanpour Isfahani

IPC: H01H57/00 ,  H01L41/09 ,  H01H67/22 ,  H01L41/04

CPC classification number: H01H57/00 ,  H01H67/22 ,  H01H2057/006 ,  H01L41/042 ,  H01L41/094 ,  H01L41/096 ,  H01P5/16

Abstract: A piezoelectric multiplexer includes an actuator and multiple piezo-morph beams. The actuator includes an actuator conducting head and an actuator stem, and each piezo-morph beam includes a conducting beam contact head and a beam stem manufactured out of piezo-morph material. A control voltage is selectively applied to electrical contacts coupled to the beam stems to create a piezoelectric effect that bends the selected piezo-morph beam and creates an electrical connection between its contact head and the conducting head of the actuator. A control circuit with a controller signals which piezo-morph beam to connect to the actuator. This multi-piezo-morph-beam piezoelectric multiplexer can be affixed to the electrical terminals of different electrical components (e.g., a transistor) to create an electrical cell that can be manufactured on a semiconductor chip or in a microelectromechanical system (MEMS) device.

公开(公告)号：US20160101618A1

公开(公告)日：2016-04-14

申请号：US14969739

申请日：2015-12-15

Applicant: Seiko Epson Corporation

Inventor： Toru KASHIMURA ,  Hiroshi SUGITA

IPC: B41J2/045

CPC classification number: B41J2/04541 ,  B41J2/04581 ,  B41J2/04586 ,  B41J2/0459 ,  B41J2/04591 ,  B41J2/04593 ,  B41J2/04596 ,  B41J2/14274 ,  B41J2/155 ,  B41J2202/03 ,  H01L41/042

Abstract: A liquid ejecting apparatus includes a signal modulation section that causes an original drive signal to be pulse-modulated to generate a modulation signal, a signal amplification section that amplifies the modulation signal to generate an amplification modulation signal, a coil that smooths the amplification modulation signal to generate a drive signal, a piezoelectric element that deforms when the drive signal is applied thereto, a cavity that expands or contracts due to a deformation of the piezoelectric element, and a nozzle that communicates with the cavity and ejects a liquid in accordance with an increase/decrease of a pressure inside the cavity. A core material of the coil is made of a Mn—Zn-based ferrite.

Abstract translation: 液体喷射装置包括使原始驱动信号被脉冲调制以产生调制信号的信号调制部分，放大调制信号以产生放大调制信号的信号放大部分，使放大调制信号平滑的线圈 以产生驱动信号，当施加驱动信号时变形的压电元件，由于压电元件的变形而膨胀或收缩的空腔，以及与空腔连通并喷射液体的喷嘴，根据 增加/减少腔内的压力。 线圈的芯材由Mn-Zn系铁氧体制成。

公开(公告)号：US20160101435A1

公开(公告)日：2016-04-14

申请号：US14972978

申请日：2015-12-17

Applicant: uBeam Inc.

Inventor： Matthew Angle ,  Marc Berte

IPC: B06B1/02 ,  H01L41/04

CPC classification number: B06B1/0207 ,  B06B1/0292 ,  B06B1/0603 ,  B06B2201/51 ,  H01L41/042

Abstract: An ultrasonic transducer that can include a driver side and a bias voltage side. A higher voltage source can be electrically connected to the bias voltage side through a first resistor. A lower voltage source can be electrically connected to the driver side of through a second resistor. A field effect transistor or other suitable switch can be included, having a source, a gate and a drain. The source can be electrically connected to ground and the gate can be electrically connected to a control signal source. The drain can be electrically connected to the lower voltage source through a second resistor and be electrically connected to the driver side of the ultrasonic transducer. The gate can be electrically connected to a signal source through a third resistor.

Abstract translation: 可以包括驱动器侧和偏置电压侧的超声换能器。 较高的电压源可以通过第一电阻器电连接到偏置电压侧。 较低电压源可以通过第二电阻器电连接到驱动器侧。 可以包括场效应晶体管或其他合适的开关，具有源极，栅极和漏极。 源极可以电连接到地，并且栅极可以电连接到控制信号源。 漏极可以通过第二电阻器电连接到较低电压源，并且电连接到超声换能器的驱动器侧。 栅极可以通过第三电阻器电连接到信号源。

公开(公告)号：US09293682B2

公开(公告)日：2016-03-22

申请号：US14658508

申请日：2015-03-16

Applicant: Brother Kogyo Kabushiki Kaisha

Inventor： Toru Yamashita

IPC: B41J2/14 ,  H01L41/04 ,  H01L41/09

CPC classification number: H01L41/042 ,  B41J2/14233 ,  B41J2002/14241 ,  B41J2002/14491 ,  H01L41/09 ,  H01L41/0973

Abstract: There is provided a liquid jetting apparatus including: a first channel structure; a piezoelectric actuator provided on the first channel structure; and a driving device. The piezoelectric actuator includes: a vibration plate; a plurality of piezoelectric elements each including an activator formed of a piezoelectric material; signal input portions which receive drive signals for driving the plurality of piezoelectric elements from the driving device; a reference potential portion; and actuator wires. The piezoelectric elements include a first and second piezoelectric elements, a length of a wire which connects the first piezoelectric element and the driving device is longer than a length of a wire which connects the second piezoelectric element and the driving device, a capacitor is serially connected to the first piezoelectric element, and the capacitor includes an insulator formed of a piezoelectric material same as the piezoelectric material of the activators of the piezoelectric elements.

Abstract translation: 提供了一种液体喷射装置，包括：第一通道结构; 设置在第一通道结构上的压电致动器; 和驱动装置。 压电致动器包括：振动板; 多个压电元件，每个压电元件包括​​由压电材料形成的激活器; 信号输入部，其接收用于从所述驱动装置驱动所述多个压电元件的驱动信号; 参考电位部分; 和执行器线。 压电元件包括​​第一和第二压电元件，连接第一压电元件和驱动装置的线的长度比连接第二压电元件和驱动装置的线的长度长，电容器串联 并且电容器包括由与压电元件的激活剂的压电材料相同的压电材料形成的绝缘体。

公开(公告)号：US09273627B2

公开(公告)日：2016-03-01

申请号：US13984236

申请日：2012-02-01

Applicant: Martin Brandt

Inventor： Martin Brandt

IPC: F02D41/20 ,  H01L41/04 ,  F02M51/06 ,  F02D41/24 ,  F02M47/02 ,  F02M63/00 ,  F02D41/30

CPC classification number: F02D41/2096 ,  F02D41/247 ,  F02D41/30 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2200/0602 ,  F02M47/027 ,  F02M51/0603 ,  F02M63/0026 ,  F02M63/0035 ,  F02M2200/21 ,  F02M2200/703 ,  H01L41/04 ,  H01L41/042 ,  H01L41/044

Abstract: An injection device for an internal combustion engine includes a piezo actuator for moving a valve piston, and a control unit for actuating the piezo actuator. The control unit supplies electrical pulses having different pulse energy to the piezo actuator and determines a return stroke between the piezo actuator and valve piston or a time delay caused by the return stroke. The control unit selects the pulse energies such that a maximum excursion of a movement of the piezo actuator caused by at least one pulse is smaller than the return stroke, whereas a maximum excursion of a piezo actuator movement caused by another pulse(s) is greater than the return stroke, after each of the pulses detects a frequency spectrum of a voltage signal at the piezo actuator during the movement caused by the respective pulse, and determines the return stroke or time delay based on these frequency spectra.

Abstract translation: 用于内燃机的注射装置包括用于移动阀活塞的压电致动器和用于致动压电致动器的控制单元。 控制单元向压电致动器提供具有不同脉冲能量的电脉冲，并且确定压电致动器和阀活塞之间的返回行程或由返回行程引起的时间延迟。 控制单元选择脉冲能量，使得由至少一个脉冲引起的压电致动器的运动的最大偏移小于返回行程，而由另一个脉冲引起的压电致动器运动的最大偏移更大 在每个脉冲检测到由各个脉冲引起的移动期间在压电致动器处的电压信号的频谱，并且基于这些频谱确定返回行程或时间延迟。

公开(公告)号：US20160054188A1

公开(公告)日：2016-02-25

申请号：US14932204

申请日：2015-11-04

Applicant: Seiko Epson Corporation

Inventor： Yusuke MATSUZAWA

IPC: G01L7/08 ,  G01C5/00

CPC classification number: G01L7/082 ,  G01C5/00 ,  G01C5/06 ,  G01C21/28 ,  G01L9/0054 ,  G01L9/085 ,  H01L27/07 ,  H01L41/042

Abstract: A physical quantity sensor includes a semiconductor substrate, a diaphragm section that is disposed on the semiconductor substrate and is flexurally deformed when receiving pressure, a sensor element that is disposed on the diaphragm section, an element-periphery structure member that is disposed on one surface side of the semiconductor substrate and forms a cavity section together with the diaphragm section, and a semiconductor circuit that is provided on the same surface side as the element-periphery structure member of the semiconductor substrate.

公开(公告)号：US09269886B1

公开(公告)日：2016-02-23

申请号：US14057362

申请日：2013-10-18

Applicant: Meggitt (Maryland), Inc.

Inventor： Christopher E. McLean ,  Lei Hsu

IPC: H01L41/107

CPC classification number: H01L41/042 ,  H03F3/187 ,  H03F3/45475

Abstract: A circuit combines the features of fast startup with low current, low frequency response, and low noise. With the use of a novel biasing technique, it is possible to operate the piezoelectric crystal at zero DC voltage bias, both throughout the startup phase and during normal operation, by setting both ends of the piezoelectric crystal to the same voltage potential. In this application, the potential is that of the reference voltage. Not having to charge the piezoelectric crystal capacitance reduces the startup time dramatically.

Abstract translation: 电路结合了快速启动的特点，低电流，低频响应和低噪声。 通过使用新的偏置技术，可以通过将压电晶体的两端设置为相同的电压电位，在整个启动阶段和正常操作期间以零直流电压偏压来操作压电晶体。 在本应用中，电位是参考电压的电位。 无需为压电晶体电容充电，显着降低了启动时间。