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    Injection device
    3.
    发明授权
    Injection device 有权
    注射装置

    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。

    High voltage power source device and image forming device
    4.
    发明授权
    High voltage power source device and image forming device 有权
    高压电源装置及成像装置

    公开(公告)号：US09024477B2

    公开(公告)日：2015-05-05

    申请号：US13397953

    申请日：2012-02-16

    Applicant: Ryo Takatsuka

    Inventor： Ryo Takatsuka

    IPC: H02J1/00 ,  G03G15/00 ,  H01L41/04 ,  H02M1/44 ,  H02M3/335 ,  H02M1/00

    CPC classification number: G03G15/80 ,  H01L41/044 ,  H02M1/44 ,  H02M3/33507 ,  H02M2001/008 ,  Y10T307/696

    Abstract: A high voltage power source device includes piezoelectric transformers, each of the piezoelectric transformers being formed with a primary electrode and a secondary electrode on piezoelectric ceramics, receiving a primary voltage at the primary electrode, and generating a second voltage from the secondary electrode, switching elements, each of the switching elements driving a respective one of the piezoelectric transformers, and primary voltage supply devices, each of the primary voltage supply devices supplying the primary voltage to the primary electrode of the respective one of the piezoelectric transformers by driving the respective one of the switching elements when the secondary voltage is generated from the respective one of the second electrodes, wherein the respective one of the primary voltage supply devices supplies the primary voltage to the respective one of the primary electrodes by driving the respective one of the switching elements at the same frequency.

    Abstract translation: 高压电源装置包括压电变压器，每个压电变压器在压电陶瓷上形成有初级电极和次级电极，在初级电极处接收初级电压，并从次级电极产生第二电压，开关元件 每个开关元件驱动相应的一个压电变压器和一次电压供给装置，每个初级电压供给装置通过驱动相应的一个压电变压器的一个电压向相应的一个压电变压器提供初级电压 所述开关元件当从所述第二电极中的相应一个产生所述次级电压时，其中所述主电压供给装置中的相应一个通过驱动所述开关元件中的相应一个将一次电压提供给所述主电极中的相应一个 频率相同

    INTRINSIC ADAPTIVE AND AUTONOMIC PIEZOTRANSFORMER CIRCUITS
    5.
    发明申请
    INTRINSIC ADAPTIVE AND AUTONOMIC PIEZOTRANSFORMER CIRCUITS 有权
    内置自适应和自动PIEZOTRANSFORMER电路

    公开(公告)号：US20140247633A1

    公开(公告)日：2014-09-04

    申请号：US14347465

    申请日：2012-08-01

    Applicant: Gareth J. Knowles ,  William M. Bradley ,  John Murray ,  Ross Bird ,  Jon Zook

    Inventor： Gareth J. Knowles ,  William M. Bradley ,  John Murray ,  Ross Bird ,  Jon Zook

    IPC: H01L41/04 ,  H02M3/335

    CPC classification number: H01L41/044 ,  H01L41/107 ,  H02M3/335 ,  H02M7/53 ,  H02M2007/4815 ,  H02M2007/4818

    Abstract: An intrinsic piezoelectric transformer circuit a piezoelectric transformer circuit is provided that has a primary side component including first and second electrodes, a secondary side component including first and second electrodes, and at least one tertiary component including first and second electrodes. A power bridge is provided which includes one or more switches, each switch has a gate terminal that is directly connected to the second electrode of the tertiary component of the piezoelectric transformer. The first electrode of the tertiary component of the piezoelectric transformer is connected to a reference for the one or more switches of the power bridge. The first electrode of the primary component of the piezoelectric transformer is electrically connected to a power bridge output and the second electrode of the primary component of the piezoelectric transformer is connected to a ground terminal.

    Abstract translation: 提供一种压电变压器电路的本征压电变压器电路，其具有包括第一和第二电极的初级侧部件，包括第一和第二电极的次级侧部件和包括第一和第二电极的至少一个第三部件。 提供一种电源桥，其包括一个或多个开关，每个开关具有直接连接到压电变压器的三次分量的第二电极的栅极端子。 压电变压器的三次分量的第一电极连接到功率桥的一个或多个开关的基准。 压电变压器的主要部件的第一电极电连接到功率桥输出，并且压电变压器的主要部件的第二电极连接到接地端子。

    Injection Device
    6.
    发明申请
    Injection Device 有权
    注射装置

    公开(公告)号：US20130327301A1

    公开(公告)日：2013-12-12

    申请号：US13984236

    申请日：2012-02-01

    Applicant: Martin Brandt

    Inventor： Martin Brandt

    IPC: 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。

    TECHNOLOGY FOR REDUCING CIRCUIT OSCILLATIONS AND RIPPLE IN A HIGH-VOLTAGE POWER SUPPLY USING A PIEZOELECTRIC TRANSFORMER
    7.
    发明申请
    TECHNOLOGY FOR REDUCING CIRCUIT OSCILLATIONS AND RIPPLE IN A HIGH-VOLTAGE POWER SUPPLY USING A PIEZOELECTRIC TRANSFORMER 有权
    使用压电变压器降低高压电源电路振荡和纹波的技术

    公开(公告)号：US20130209133A1

    公开(公告)日：2013-08-15

    申请号：US13868043

    申请日：2013-04-22

    Applicant: Canon Kabushiki Kaisha

    Inventor： Osamu Nagasaki

    IPC: G03G15/00 ,  H02M3/335

    CPC classification number: H02M1/14 ,  G03G15/80 ,  H01L41/044 ,  H02M3/335

    Abstract: A high-voltage power supply comprises the following components. A piezoelectric transformer outputs a voltage in accordance with a supplied drive frequency. A rectification part is connected to an output side of the piezoelectric transformer. A drive frequency generating part generates the drive frequency supplied to the piezoelectric transformer. A voltage detection part detects an output voltage of the piezoelectric transformer or the rectification part. A control part controls the drive frequency generating part such that a drive frequency corresponding to the output voltage detected by the voltage detecting part is generated. A first time constant, which is a time constant of the control part, is smaller than a second time constant, which is a time constant of a control target including the piezoelectric transformer and the rectification part. A third time constant, which is a time constant of the voltage detecting part, is smaller than the second time constant.

    Abstract translation: 高压电源包括以下部件。 压电变压器根据所提供的驱动频率输出电压。 整流部连接到压电变压器的输出侧。 驱动频率产生部分产生提供给压电变压器的驱动频率。 电压检测部检测压电变压器或整流部的输出电压。 控制部分控制驱动频率产生部分，使得产生与电压检测部分检测到的输出电压对应的驱动频率。 作为控制部的时间常数的第一时间常数小于作为包括压电变压器和整流部的控制对象的时间常数的第二时间常数。 作为电压检测部的时间常数的第三时间常数小于第二时间常数。

    ZERO-VOLTAGE-SWITCHING (ZVS) PIEZOELECTRIC DRIVING CIRCUIT
    8.
    发明申请
    ZERO-VOLTAGE-SWITCHING (ZVS) PIEZOELECTRIC DRIVING CIRCUIT 有权
    零电压开关（ZVS）压电驱动电路

    公开(公告)号：US20130169198A1

    公开(公告)日：2013-07-04

    申请号：US13729942

    申请日：2012-12-28

    Applicant: MIDAS WEI TRADING CO., LTD. ,  CHAMPION ELITE COMPANY LIMITED

    Inventor： Tao-Chin WEI ,  Yuan-Ping LIU

    IPC: H02P31/00

    CPC classification number: H02P31/00 ,  H01L41/044 ,  H05B41/2827

    Abstract: A zero-voltage-switching (ZVS) piezoelectric driving circuit, suitable for use in a switching type power converter. It receives an input DC voltage from a half-bridge driving circuit, and through switching of an high-side switch set and a low-side switch set of the half-bridge driving circuit, converts it to an AC voltage and provides it to a piezoelectric element to drive a load. Wherein, a shunt circuit is connected electrically between the half-bridge driving circuit and the piezoelectric element for zero-voltage-switching (ZVS). Namely, when the high-side switch set and the low-side switch set are both switched off, the shunt circuit resonates with its parasitic capacitance, so that the high-side switch set and the low-side switch set perform ZVS, thus realizing ZVS in a wide range of frequency and a large range of load.

    Abstract translation: 零电压开关（ZVS）压电驱动电路，适用于开关式功率转换器。 它接收来自半桥驱动电路的输入直流电压，并且通过切换半桥开关组和半桥驱动电路的低侧开关组，将其转换成AC电压并将其提供给 压电元件来驱动负载。 其中，分流电路在半桥驱动电路和用于零电压切换（ZVS）的压电元件之间电连接。 也就是说，当高侧开关组和低侧开关组都断开时，分流电路与其寄生电容共振，使得高侧开关组和低侧开关组执行ZVS，从而实现 ZVS在广泛的频率范围和大范围的负载。

    Resonant power converter comprising a matched piezoelectric transformer
    9.
    发明授权
    Resonant power converter comprising a matched piezoelectric transformer 有权
    共振功率转换器包括一个匹配的压电变压器

    公开(公告)号：US08368286B2

    公开(公告)日：2013-02-05

    申请号：US12735766

    申请日：2009-02-13

    Applicant: Kasper Sinding Meyer

    Inventor： Kasper Sinding Meyer

    IPC: H01L41/09

    CPC classification number: H02M3/3376 ,  H01L41/044 ,  H05B41/2822 ,  H05B41/2827 ,  Y02B70/1433

    Abstract: The present invention relates to an electronic power converter comprising a piezoelectric transformer, a drive circuit arranged to generate and provide an input voltage signal to the piezoelectric transformer, said input voltage signal comprising a burst frequency and a substantially constant excitation frequency, and a rectifier module. According to the present invention the excitation frequency is selected among a plurality of excitation frequencies in such a way that an equivalent load resistance, Req, is matched to an output impedance of the piezoelectric transformer so as to minimize power losses in the piezoelectric transformer. Moreover, the present invention relates to a method for configuring an electronic power converter.

    Abstract translation: 本发明涉及一种电子功率转换器，包括压电变压器，驱动电路，其布置成产生并向压电变压器提供输入电压信号，所述输入电压信号包括突发频率和基本上恒定的激励频率，以及整流器模块 。 根据本发明，激励频率选择在多个激励频率之间，使得等效负载电阻Req与压电变压器的输出阻抗匹配，以便使压电变压器中的功率损耗最小化。 此外，本发明涉及一种用于配置电子功率转换器的方法。

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