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    • 1. 发明授权
    • Multi-layer piezoelectric transformer
    • 多层压电变压器
    • US5834882A
    • 1998-11-10
    • US864029
    • 1997-05-27
    • Richard P. Bishop
    • Richard P. Bishop
    • H01L41/107H01L41/07
    • H01L41/107
    • A multi-layer piezoelectric transformer device includes first and second electroactive members having electrodes bonded to each of their opposing major faces; and a bonding layer disposed therebetween. The first and second electroactive members are polarized in a thickness direction, between their two major faces, such that when energized by an electric field the first and second electroactive members longitudinally strain. The first and second electroactive members are arranged such that deformation of one electroactive member results in corresponding deformation of the other electroactive member. The device provides substantial transformation ratios in which relatively high power may be transferred in relation to the size of the unit, operability over wide input and output frequency bandwidths, and electrical isolation of the voltage and current at the input to the device from the voltage and current at the output of the device.
    • 多层压电变压器装置包括第一和第二电活性构件,其具有与其相对的主面各自接合的电极; 以及设置在其间的接合层。 第一和第二电活性构件在其两个主面之间在厚度方向上极化,使得当通过电场激励时,第一和第二电活性构件纵向应变。 第一和第二电活性构件被布置成使得一个电活性构件的变形导致另一个电活性构件的相应的变形。 该器件提供了相当大的变换比,其中可以相对于单元的尺寸传输相对高的功率,在宽输入和输出频率带宽上的可操作性以及在器件的输入处的电压和电流与电压的电隔离,以及 电流在器件的输出端。
    • 3. 发明授权
    • Piezoelectric power supply
    • 压电电源
    • US07122939B2
    • 2006-10-17
    • US10875238
    • 2004-06-25
    • Chin-Wen ChouEddie ChengKuang-Ming WuChin-Biau Chung
    • Chin-Wen ChouEddie ChengKuang-Ming WuChin-Biau Chung
    • H01L41/07
    • H01L41/044H05B41/2822
    • A piezoelectric power supply has a piezoelectric transformer circuit configuration which is alterable flexibly according to varying loading power requirements. It includes a control unit (control IC), a power switch (MOSFET) and an inductor to drive a piezoelectric transformer unit to actuate a high voltage and power load such as a cold cathode fluorescent lamp. The piezoelectric transformer unit consists of a plurality of piezoelectric transformers coupled in parallel. The specification of the piezoelectric transformers (single sheet piezoelectric transformers or low level laminated piezoelectric transformers) and parallel coupling number may be altered according to the required power of the load to change the voltage and current output by the piezoelectric transformers.
    • 压电电源具有压电变压器电路结构,其可根据变化的负载功率要求灵活地变化。 它包括控制单元(控制IC),电源开关(MOSFET)和电感器,用于驱动压电变压器单元来致动诸如冷阴极荧光灯的高电压和功率负载。 压电变压器单元由并联耦合的多个压电变压器组成。 可以根据负载的所需功率改变压电变压器(单片压电变压器或低级层压压电变压器)和并联耦合数量的规格,以改变由压电变压器输出的电压和电流。
    • 6. 发明授权
    • Ultrasonic sensor having vibrator mounted on substrate
    • 具有安装在基板上的振动器的超声波传感器
    • US07622849B2
    • 2009-11-24
    • US11712511
    • 2007-03-01
    • Kazuaki WatanabeTakahiko YoshidaMakiko SugiuraNoboru EndohYasuyuki Okuda
    • Kazuaki WatanabeTakahiko YoshidaMakiko SugiuraNoboru EndohYasuyuki Okuda
    • H01L41/07
    • G10K9/122
    • An ultrasonic sensor composed of a substrate and a piezoelectric vibrator mounted on the substrate is advantageously used as a sensor for detecting a distance to an object located in front of an automotive vehicle. Ultrasonic waves transmitted from the sensor are reflected by the object, and the reflected waves are received by the sensor. Based on the reflected waves, the distance from the vehicle to the object is calculated. To reduce rigidity and thereby to lower a resonant frequency of the substrate to a desirable level, grooves are formed in the substrate. A thickness of the substrate is not reduced to maintain its mechanical strength against an impact force. A resonant frequency which is desirable to realize a sufficiently high directivity and sensitivity is obtained in this manner without enlarging a size of the ultrasonic sensor.
    • 作为用于检测到位于机动车辆前方的物体的距离的传感器,有利地使用由基板和安装在基板上的压电振动器构成的超声波传感器。 从传感器发射的超声波被物体反射,反射波被传感器接收。 基于反射波,计算从车辆到物体的距离。 为了降低刚性,从而将基板的谐振频率降低到期望的水平,在基板中形成凹槽。 不降低基板的厚度以保持其抵抗冲击力的机械强度。 以这种方式获得期望实现足够高的方向性和灵敏度的共振频率,而不扩大超声波传感器的尺寸。
    • 7. 发明授权
    • Laminated electronic component
    • 层压电子部件
    • US07329976B2
    • 2008-02-12
    • US11410646
    • 2006-04-25
    • Kouji ShirasuJoushi GotouHiroyuki Watanabe
    • Kouji ShirasuJoushi GotouHiroyuki Watanabe
    • H01L41/07
    • H01G4/012H01G4/232H01G4/30
    • A laminated electronic component is provided which comprises a layered body of generally rectangular shape, including alternately laminated dielectric layers 4 and internal electrode layers 3a and 3b, and external electrodes 5b formed on both ends of the layered body and are connected to the internal electrode layers 3a and 3b. Adjacent internal electrode layers 3a and 3b are exposed alternately on either ends of the layered body. The layered body includes a capacitance generation portion 6 where the adjacent internal electrode layers 3a and 3b are overlapped, and electrode extraction portions 7 where the adjacent internal electrode layers 3a and 3b are not overlapped. The internal electrode 3a and 3b have a first end that is connected to the external electrode 5b and a second end that is not connected to the external electrode 5b. The internal electrode layers 3a and 3b have a thickness that expands gradually in a laminate direction and the opposite direction of the internal electrode layers 3a and 3b so as to extend in a direction from the second end to the first end to straddle at least a border between the capacitance generation portion 6 and the electrode extraction portion 7.
    • 提供了层叠电子部件,其包括大致矩形形状的层叠体,包括交替层叠的电介质层4和内部电极层3a,3b,以及形成在层叠体的两端的外部电极5b, 内部电极层3a和3b。 相邻的内部电极层3a和3b交替地暴露在层叠体的两端。 层叠体包括相邻的内部电极层3a和3b重叠的电容产生部分6和相邻的内部电极层3a和3b的重叠的电极提取部分7。 内部电极3a和3b具有连接到外部电极5b的第一端和不连接到外部电极5b的第二端。 内部电极层3a和3b具有在层叠方向和内部电极层3a和3b的相反方向上逐渐扩大的厚度,以便在从第二端到第一端的方向上延伸到跨越 至少电容产生部分6和电极提取部分7之间的边界。
    • 9. 发明授权
    • Bending actuators and sensors constructed from shaped active materials and methods for making the same
    • 由成形活性材料构成的弯曲致动器和传感器及其制造方法
    • US06965189B2
    • 2005-11-15
    • US10251217
    • 2002-09-20
    • Christoph P. Menzel
    • Christoph P. Menzel
    • H01L41/09H01L41/107H01L41/113H01L41/12H01L41/24H02N2/00H02N2/18H01L41/08H01L41/07
    • H01L41/12H01L41/0926H01L41/098H01L41/107H01L41/1132H01L41/331
    • Bender devices are demonstrated by developing non-uniform fields within a homogeneous, non-planar single slab active member material of non-uniform thickness through geometrical constraints and electrode placement. Single slab actuators are demonstrated for semiconductor designs including MEMS applications. Single slab bender periodic designs are demonstrated to be well suited for MEMS fabrication. Shaped actuators having a topological pattern formed across at least one portion are demonstrated to induced strain at the patterned portion of the actuator, causing the patterned portion to flare into open and close positions upon application of an external field. Voltage transformers, spark generators, power sources, and sensors are developed using the non-planar, homogeneous, single slab active member material of non-uniform thickness. Last, semiconductor process design techniques are demonstrated for periodic and other non-planar single slab actuators.
    • 通过在几何约束和电极放置的非均匀厚度的均匀,非平面单板活动构件材料内开发非均匀场来证明弯曲装置。 针对包括MEMS应用在内的半导体设计,展示了单板式致动器。 单板弯曲周期性设计被证明非常适合于MEMS制造。 证明了在至少一个部分上形成的拓扑图案的成形致动器在致动器的图案化部分处引起应变,使得图案化部分在施加外部场时展开成打开和关闭位置。 电压互感器,火花发生器,电源和传感器是使用不均匀厚度的非平面,均匀的单板活动构件材料开发的。 最后,为周期性和其他非平面单板致动器演示半导体工艺设计技术。