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1. 发明授权

US10296021B2 Monitor for active vibration control 有权
公开(公告)号：US10296021B2
公开(公告)日：2019-05-21
申请号：US14759240
申请日：2014-01-17
申请人： LORD CORPORATION , Doug A. Swanson , Paul R. Black , David Clark , Matthew K. Ferguson , Jihan Ryu
发明人： Doug A. Swanson , Paul R. Black , David Clark , Matthew K. Ferguson , Jihan Ryu
IPC分类号： G05D19/02 , B64C27/00 , G01H1/00 , G05B15/02
摘要： The present subject matter relates to systems and methods for active vibration control system speed monitoring and control in which a speed protection monitor configured to receive index pulses as inputs to monitor the speed of one or more force generators. A rotary actuator control system can be connected in communication with the speed protection monitor and the one or more force generators, wherein the rotary actuator control system is configured to shut down or adjust the speed of the one or more force generators if the one or more force generators are determined to be operating at undesired speeds.

2. 发明授权

US06529073B1 Active control system and amplifiers including damping loops and power supplies with over-voltage protection pre-regulators 失效
标题翻译：主动控制系统和放大器包括阻尼回路和带过压保护预调节器的电源
公开(公告)号：US06529073B1
公开(公告)日：2003-03-04
申请号：US09565726
申请日：2000-05-05
申请人： John H. Highfill, III , Matthew K. Ferguson , Jeffrey Cranmer
发明人： John H. Highfill, III , Matthew K. Ferguson , Jeffrey Cranmer
IPC分类号： H03F2100
CPC分类号： H03F3/2173 , H03F1/523 , H03F3/2171
摘要： Over-voltage protection circuits are provided for power supplies that may limit input voltage spikes to a power converter and amplifiers including a damping loop that may damp filter resonance. Active damping systems incorporating the over-voltage protection circuits and/or damping loops of the present invention are also provided which may be particularly advantageous in applications such as aircraft or other vehicle applications where size and power consumption are important design considerations. The over-voltage protection circuit in various embodiments senses AC and/or DC voltage levels above a detection threshold level and momentarily disconnects the voltage input to thereby reduce the maximum voltage level input transients seen by the power converter. A capacitor may be provided to maintain the input voltage to the power converter while the input is switched out. The amplifier circuit damping loop in various embodiments is nested with a control circuit current feedback loop which may compensate for feedback problems such as instability which may result when an inductor-capacitor-inductor (L-C-L) filter is included on the output of the amplifier.
摘要翻译：为电源提供过电压保护电路，可将输入电压尖峰限制到功率转换器和放大器，包括阻尼滤波器谐振的阻尼回路。还提供了结合本发明的过电压保护电路和/或阻尼环的主动阻尼系统，其在尺寸和功率消耗是重要设计考虑的诸如飞行器或其它车辆应用的应用中可能是特别有利的。在各种实施例中的过电压保护电路感测到高于检测阈值电平的AC和/或DC电压电平并且暂时断开电压输入，从而减小由功率转换器所看到的最大电压电平输入瞬变。可以提供电容器以在输入被切换时将输入电压维持到功率转换器。各种实施例中的放大器电路阻尼回路嵌套有控制电路电流反馈回路，其可以补偿在放大器的输出上包括电感器 - 电容器 - 电感器（L-C-L）滤波器时可能导致的反馈问题，例如不稳定性。

3. 发明授权

US5619581A Active noise and vibration cancellation system 失效
标题翻译：主动噪声和振动消除系统
公开(公告)号：US5619581A
公开(公告)日：1997-04-08
申请号：US245717
申请日：1994-05-18
申请人： Matthew K. Ferguson , Steve C. Southward , Michael C. Heath
发明人： Matthew K. Ferguson , Steve C. Southward , Michael C. Heath
IPC分类号： G10K11/178 , A61F11/06 , H03B29/00
CPC分类号： G10K11/1786 , G10K2210/3031 , G10K2210/3032 , G10K2210/3033 , G10K2210/3042 , G10K2210/3043 , G10K2210/3046 , G10K2210/3214
摘要： An active noise and vibration control system (20) for cancellation of noise or vibration. The system (20) provides a system whereby the adaptation path and feedforward path are implemented in separate hardware. As a result, the computational burden on the digital signal processor (DSP) (28) is reduced allowing the DSP (28) to handle multiple inputs (22), error sensors (34), and transducers (32). In one embodiment, the processing of the input signal from sensor (22) takes place in a waveform generator (24) comprising a phase-locked loop, a frequency divider, a shift register, and at least one switched capacitor filter. In another embodiment the input signal processing takes place in separate feedforward circuitry including a field programmable gate array (64).
摘要翻译：一种主动噪声和振动控制系统（20），用于消除噪音或振动。系统（20）提供了一种系统，其中适应路径和前馈路径在单独的硬件中实现。结果，数字信号处理器（DSP）（28）的计算负担被减小，允许DSP（28）处理多个输入（22），误差传感器（34）和换能器（32）。在一个实施例中，来自传感器（22）的输入信号的处理发生在包括锁相环，分频器，移位寄存器和至少一个开关电容滤波器的波形发生器（24）中。在另一个实施例中，输入信号处理发生在包括现场可编程门阵列（64）的单独的前馈电路中。

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