公开(公告)号：US09876444B2

公开(公告)日：2018-01-23

申请号：US14410988

申请日：2013-06-28

申请人： Noliac A/S

发明人： Charles Edouard Mangeot

IPC分类号： H02N2/10 ,  H01L41/09 ,  H02N2/14

CPC分类号： H02N2/105 ,  H01L41/0966 ,  H02N2/14 ,  H02N2/147

摘要： An wobble motor with an actuator extending in a Z direction between opposite mount and tool ends and comprising two sections offset in that Z direction. Each section comprises a structure of electrodes interleaved in a piezoelectric material in such a way that a Y-region can cause deflection in a Y-direction perpendicular to the Z-direction upon energizing of associated electrodes and such that a X-region can cause deflection in an X-direction perpendicular to the Y and Z directions upon energizing of associated electrodes.

公开(公告)号：US20140334192A1

公开(公告)日：2014-11-13

申请号：US14361037

申请日：2012-12-06

申请人： Noliac A/S

发明人： Kaspar Sinding Meyer ,  Martin Schøler Rødgaard ,  Michael Andreas Esbern Andersen ,  Thomas Andersen

IPC分类号： H02M3/335

CPC分类号： H02M3/33584 ,  H01L41/044 ,  H02M3/33592 ,  H02M3/3385 ,  H02M7/537 ,  H02M2001/0058 ,  Y02B70/1491

摘要： The present invention relates to a bi-directional piezoelectric power converter comprising a piezoelectric transformer. The piezoelectric transformer comprises an input electrode electrically coupled to a primary section of the piezoelectric transformer and an output electrode electrically coupled to an output section of the piezoelectric transformer to provide a transformer output signal. A bi-directional switching circuit is coupled between the output electrode and a DC or AC output voltage of the power converter. Forward and reverse current conducting periods of the bi-directional switching circuit is based on the input drive signal or the transformer output signal such that a forward current is conducted from the output electrode through the bi-directional switching circuit to the DC or AC output voltage in a first state to charge the DC or AC output voltage. In a second state, a reverse current is conducted through the bi-directional switching circuit from the DC or AC output voltage to the output electrode to discharge the DC or AC output voltage and return power to the primary section of the piezoelectric transformer.

摘要翻译： 本发明涉及一种包括压电变压器的双向压电功率转换器。 压电变压器包括电耦合到压电变压器的初级部分的输入电极和电耦合到压电变压器的输出部分以提供变压器输出信号的输出电极。 双向开关电路耦合在输出电极和功率转换器的DC或AC输出电压之间。 双向开关电路的正向和反向电流传导周期基于输入驱动信号或变压器输出信号，使得正向电流从输出电极通过双向开关电路传导到DC或AC输出电压 处于对DC或AC输出电压充电的第一状态。 在第二状态下，通过双向开关电路将反向电流从DC或AC输出电压传导到输出电极，以对DC或AC输出电压进行放电并将功率返回到压电变压器的初级部分。

公开(公告)号：US20140167571A1

公开(公告)日：2014-06-19

申请号：US14237432

申请日：2012-08-03

申请人： Kaspar Sinding Meyer

发明人： Kaspar Sinding Meyer

IPC分类号： H01L41/107

CPC分类号： H01L41/107

摘要： The present invention relates to a piezoelectric transformer comprising an elongate piezoelectric ceramic body adapted to operate in fundamental thickness mode. The elongate piezoelectric ceramic body comprises a central input or primary section coupled to adjacently arranged first and second output sections. High power conversion efficiency and zero-voltage switching capability is achieved by providing a primary side effective electromechanical coupling factor keff—P, which is larger than a secondary side electromechanical coupling factor, keff—S.

摘要翻译： 本发明涉及一种压电变压器，其包括适于在基本厚度模式下操作的细长压电陶瓷体。 细长压电陶瓷体包括耦合到相邻布置的第一和第二输出部分的中心输入或初级部分。 通过提供大于次级侧机电耦合因子keff-S的初级侧有效机电耦合因子keff-P来实现高功率转换效率和零电压切换能力。

公开(公告)号：US08368286B2

公开(公告)日：2013-02-05

申请号：US12735766

申请日：2009-02-13

申请人： Kasper Sinding Meyer

发明人： Kasper Sinding Meyer

IPC分类号： H01L41/09

CPC分类号： H02M3/3376 ,  H01L41/044 ,  H05B41/2822 ,  H05B41/2827 ,  Y02B70/1433

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07923901B2

公开(公告)日：2011-04-12

申请号：US12311324

申请日：2007-09-18

申请人： Bernhard Gottlieb ,  Andreas Kappel ,  Tim Schwebel ,  Carsten Wallenhauer

发明人： Bernhard Gottlieb ,  Andreas Kappel ,  Tim Schwebel ,  Carsten Wallenhauer

IPC分类号： H02N2/00

CPC分类号： H02N2/105

摘要： A solid-state actuator drive apparatus has—a shaft, —a pivot bearing for supporting the shaft, —a drive body, —at least two actuators for the excitation of the drive body and the shaft relative to each other for causing the shaft to rotate relative to the drive body, and—a base element, on which these components are attached. Either the drive body is configured such that it has a drive body opening, and the shaft at least leads into the drive body opening, —or the shaft is configured as a hollow shaft, and an element of the drive body having an annular or discoid circumference is disposed therein. The drive body is disposed stationary relative to the base element. The shaft is disposed in the pivot bearing and is adjustably disposed in the radial direction of the shaft relative to the base element by the solid-state actuators.

摘要翻译： 固态致动器驱动装置具有轴， - 用于支撑轴的枢转轴承， - 驱动体， - 至少两个致动器，用于相对于彼此激励驱动体和轴，用于使轴 相对于驱动体旋转，以及 - 附接这些部件的基本元件。 驱动体构造成使得其具有驱动体开口，并且该轴至少引导到驱动体开口中，并且轴构造为空心轴，并且驱动体的元件具有环形或圆盘形 圆周设置在其中。 驱动体相对于基体元件静止。 轴设置在枢转轴承中，并且通过固态致动器相对于基座元件可调节地设置在轴的径向方向上。