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1. 发明申请

WO2018134637A1 STICK-SLIP PIEZOELECTRIC MOTOR 审中-公开
公开(公告)号：WO2018134637A1
公开(公告)日：2018-07-26
申请号：PCT/IB2017/000554
申请日：2017-04-24
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： CULPI, William
IPC分类号： H02N2/00 , H02N2/02
摘要： A piezo-electric motor 100 includes an actuation portion including an actuation surface 106 and a piezo stack 102 that is operable in response to the application of a voltage to move the actuation surface along an actuation axis 116 between a retracted position and an extended position. A spring strap 112 partially surrounds the actuation portion and is operable to bias the actuation surface toward the retracted position and a movable portion 108,110 is frictionally engaged with the actuation surface. The voltage is selected such that the movable portion sticks to the actuation surface as the actuation surface moves toward one of the retracted position and the extended position and slips on the actuation surface as the actuation surface moves toward the other of the retracted position and the extended position.

2. 发明申请

WO2021043636A1 PIEZOELECTRIC STICK-SLIP-MOTOR AND METHOD OF CONTROLLING SAME 审中-公开
公开(公告)号：WO2021043636A1
公开(公告)日：2021-03-11
申请号：PCT/EP2020/073749
申请日：2020-08-25
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： CULPI, William , KNEIPP, Jerome
IPC分类号： H02N2/06 , H02N2/02
摘要： The present invention relates to a piezoelectric stick-slip-motor and method of controlling same. In order to enable speed variation of the piezoelectric stick-slip-motor with a reduced noise generation, the present invention provides the method of controlling a piezoelectric stick-slip-motor according to claim 1, said method comprising the following steps: Step A: applying to the motor a cyclic sawtooth-waveform drive voltage signal with a constant frequency in which the drive voltage (V) increases to and decreases from a peak voltage (Vp) for operating the motor with a constant speed; Step B: changing the motor speed by gradually increasing or decreasing the gradient (dV/dt) of increasing the drive voltage (V) to the peak voltage (Vp) with each subsequent sawtooth-waveform drive voltage signal cycle (C) while keeping the frequency of the drive voltage signal constant.

3. 发明申请

WO2015036545A2 COMPACT VERSATILE STICK-SLIP PIEZOELECTRIC MOTOR 审中-公开
标题翻译：紧凑型滑块压电电机
公开(公告)号：WO2015036545A2
公开(公告)日：2015-03-19
申请号：PCT/EP2014/069504
申请日：2014-09-12
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： CULPI, William
IPC分类号： G05B19/40
CPC分类号： H02N2/006 , G05B19/40 , G05B2219/41344 , H02N2/025 , H02N2/101
摘要： A motion control system that includes a base, a stage supported by the base and movable with respect to the base, and a motor coupled to the base and operable to move the stage. The motor includes a mounting base arranged to connect the motor to the base, a friction pad engageable with the stage, and a coupling portion including a first end connected to the mounting base and a second end. The friction pad is connected to the coupling portion between the first end and the second end. A piezoelectric element is disposed between the mounting base and the second end and is operable in response to an electrical signal to move the friction pad and the stage. A mounting screw is accessible from an exterior of the base and engages the coupling portion. The mounting screw is the sole attachment mechanism between the motor and the base.
摘要翻译：一种运动控制系统，包括基座，由基座支撑并可相对于基座移动的台架，以及耦合到基座并可操作以移动台架的马达。电动机包括安装基座，其被布置成将马达连接到基座，可与平台接合的摩擦垫，以及耦合部分，其包括连接到安装基座的第一端和第二端。摩擦垫连接到第一端和第二端之间的连接部分。压电元件设置在安装基座和第二端之间，并且响应于电信号而可操作以移动摩擦垫和台架。安装螺钉可从基座的外部接近并与联接部分接合。安装螺钉是电机和底座之间的唯一安装机构。

4. 发明申请

WO2019186334A1 DUAL MODE MOTION CONTROL SYSTEM AND METHOD FOR OPERATING A PIEZO MOTOR 审中-公开
公开(公告)号：WO2019186334A1
公开(公告)日：2019-10-03
申请号：PCT/IB2019/052308
申请日：2019-03-21
申请人： PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
发明人： CULPI, William , KNEIPP, Jérôme
IPC分类号： H02N2/02 , H02N2/06 , H02N2/14 , H02N2/10
摘要： A motion control system and method for controlling a stick-slip piezo motor includes an electronic controller and an analog driver for moving a mechanical device. When operating in a digital circuit mode, an electronic controller controls a digital-to-analog converter for moving the stick-slip piezo motor at a low speed. When operating in a faster analog circuit mode, the electronic controller, via an analog driver, operates to control an analog hardware circuit to move the stick-slip piezo motor at a high speed. The electronic controller operates in the digital circuit mode at start-up of the piezo motor.

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