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1.发明授权Apparatus and method for minimizing limit cycle using complementary filtering techniques 失效使用互补滤波技术最小化极限周期的装置和方法
公开(公告)号：US5015934A
公开(公告)日：1991-05-14
申请号：US415803
申请日：1989-09-25
CPC分类号： G05D3/20 , G05B19/33 , G05B2219/33268 , G05B2219/37313 , G05B2219/37473 , G05B2219/41423
摘要： The apparatus controls the positioning of a device in response to a commanded input signal, and comprises an element for moving the device in response to an error signal. A sensor component determines the actual position of the device, the sensor component outputting a primary signal and a derivative signal corresponding to the actual position and velocity of the device, respectively. A complementary filter system filters the primary signal and the derivative signal to generate a derived position signal, the derived position signal being combined with the commanded input signal thereby generating the error signal. The filtering results in effectively increasing the resolution of the sensor component thereby reducing the limit cycle caused by quantization of the sensor component.
摘要翻译： 该装置响应于指令的输入信号控制设备的定位，并且包括用于响应于错误信号移动设备的元件。 传感器部件确定装置的实际位置，传感器部件分别输出与装置的实际位置和速度相对应的主信号和导数信号。 互补滤波器系统对主要信号和导数信号进行滤波以产生导出的位置信号，导出的位置信号与指令的输入信号组合，从而产生误差信号。 该滤波导致有效地增加传感器部件的分辨率，从而减少由传感器部件的量化引起的极限循环。
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公开(公告)号：US5455397A
公开(公告)日：1995-10-03
申请号：US171034
申请日：1993-12-21
CPC分类号： H01Q3/06 , G01B7/30 , H01H19/18 , H01H2019/006
摘要： In a system which includes a driven shaft that has limited angular rotation capabilities from a start position clockwise and counterclockwise through a common overlapping angular region, a device for enabling the determination of which desired direction the shaft should be rotated from the region in order to return to the start position including a first member connected for motion with the shaft rotation and a second member mounted for independent motion when moved by the first member in a first direction, the second member being held in the start position with motion of the first member in a second direction, and a sensor to sense the presence of the second member in the start position as an indication of the desired direction.
摘要翻译： 在一个系统中，该系统包括一个驱动轴，该从动轴通过共同重叠的角度区域从顺时针和逆时针方向的起始位置的角度旋转能力都有限，这样一个装置能够确定轴应该从该区域旋转到哪个期望的方向以返回 到包括连接在轴旋转中的第一构件的第一构件和当第一构件在第一方向上移动时被安装为独立运动的第二构件，第二构件通过第一构件的运动而保持在起始位置 第二方向，以及传感器，用于感测起始位置中第二构件的存在作为期望方向的指示。
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公开(公告)号：US4870340A
公开(公告)日：1989-09-26
申请号：US305841
申请日：1989-02-03
申请人： Kevin D. Kral
发明人： Kevin D. Kral
CPC分类号： G05F1/445 , H02M5/257 , H02M5/293 , H05B39/048 , Y02B20/148
摘要： The proposed invention is an energy saving load control device primarily intended for inductive loads (i.e., fluorescent lighting, motors, etc.) operating from an alternating current (AC) source. The proposed device switches the load voltage off at arbitrary positions in the sine wave and simultaneously provides a commutating path for any inductive current. By switching the load voltage on and off and providing a commutating current path reduced energy consumption is realized.
摘要翻译： 所提出的发明是主要用于从交流（AC）源操作的感应负载（即，荧光照明，电动机等）的节能负载控制装置。 所提出的装置在正弦波的任意位置切换负载电压，同时提供任何感应电流的换向路径。 通过切换负载电压并提供换向电流路径，实现了能量消耗的降低。
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4.发明授权
公开(公告)号：US4642501A
公开(公告)日：1987-02-10
申请号：US786979
申请日：1985-10-15
CPC分类号： F16C32/0444 , F16C32/0472
摘要： A magnetic actuator for providing a single-axis, noncontacting force capability with unconstrained cross-axis mobility utilizes flux feedback force linearization. Electromagnets cooperating with an armature suspended therebetween are energized by a bias flux and a signal derived from flux densities sensed in the air gaps. The bias flux density may be optimized to minimize the peak power required by the actuator. The flux density signals are applied in a closed force loop to provide a net force directly proportional to the commanded flux.
摘要翻译： 用于提供具有无约束的跨轴移动性的单轴非接触力能力的磁致动器利用磁通反馈力线性化。 与悬挂在其间的电枢协同工作的电磁体由偏置磁通和从气隙中感测到的磁通密度得到的信号激励。 可以优化偏置通量密度以最小化致动器所需的峰值功率。 磁通密度信号被施加在闭合力回路中以提供与指令通量成正比的净力。
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