公开(公告)号：US5134397A

公开(公告)日：1992-07-28

申请号：US716179

申请日：1991-06-17

Applicant: Bruce N. Eyerly ,  Donald R. Cargille

Inventor： Bruce N. Eyerly ,  Donald R. Cargille

IPC: G01D5/245 ,  G01D5/20 ,  H03M1/48 ,  H03M1/64

CPC classification number: H03M1/485 ,  G01D5/2073

Abstract: A phase compensation circuit for use with a resolver circuit that compensates for resolver angle measurement error without the use of special compensation windings on the resolver or the buffer amplifier associated with the compensation windings. With the present invention, primary windings from a plurality of resolvers may be reduction over conventional circuits. A digital computer is employed to process integrated data indicative of the phase shift of signals generated by the resolver, and compute error correction signals that compensate sine and cosine angle data output signals of the resolver. No resolver compensation windings are necessary and no additional electronic equipment is necessary. The present invention provides increased accuracy to fulfill more stringent angle measurement specifications.

公开(公告)号：US06360601B1

公开(公告)日：2002-03-26

申请号：US09488425

申请日：2000-01-20

Applicant: A. Dorian Challoner ,  Roman C. Gutierrez ,  Tony K. Tang ,  Donald R. Cargille

Inventor： A. Dorian Challoner ,  Roman C. Gutierrez ,  Tony K. Tang ,  Donald R. Cargille

IPC: G01P904

CPC classification number: G01C19/5719 ,  G01P2015/084 ,  G01P2015/0842

Abstract: A micro-gyroscope (10) having closed loop operation by a control voltage (VTY), that is demodulated by an output signal of the sense electrodes (S1, S2), providing Coriolis torque rebalance to prevent displacement of the micro-gyroscope (10) on the output axis (y-axis). The present invention provides wide-band, closed-loop operation for a micro-gyroscope (10) and allows the drive frequency to be closely tuned to a high Q sense axis resonance. A differential sense signal (S1−S2) is compensated and fed back by differentially changing the voltage on the drive electrodes to rebalance Coriolis torque. The feedback signal is demodulated in phase with the drive axis signal (K&ohgr;⊖x) to produce a measure of the Coriolis force.

Abstract translation: 一种具有通过感测电极（S1，S2）的输出信号解调的控制电压（VTY）的闭环操作的微型陀螺仪（10），提供科里奥利扭矩重新平衡以防止微型陀螺仪（10）的位移 ）在输出轴（y轴）上。 本发明为微型陀螺仪（10）提供宽带，闭环操作，并允许将驱动频率紧密地调谐到高Q感测轴共振。 差分感测信号（S1-S2）被补偿并通过差动地改变驱动电极上的电压进行反馈，以重新平衡科里奥利扭矩。 反馈信号与驱动轴信号（Komega⊖x）同相解调，以产生科里奥利力的量度。

公开(公告)号：US06289733B1

公开(公告)日：2001-09-18

申请号：US09310898

申请日：1999-05-12

Applicant: Anthony D. Challoner ,  Wallace H. Sunada ,  Donald R. Cargille

Inventor： Anthony D. Challoner ,  Wallace H. Sunada ,  Donald R. Cargille

IPC: G01P904

CPC classification number: G01C19/5719

Abstract: Planar vibratory gyroscope structures are provided which are inherently symmetric, which facilitate the use of simple monolithic fabrication processes and which enable the use of sensitive control and sense systems. A planar vibratory member of these structures has a hollow frame, a plate that has a plate perimeter and is positioned within the frame and a plurality of elongate beams which couple the plate to the frame wherein each of the beams is proximate to and substantially parallel to a respective portion of the plate perimeter. The exterior rim of the planar member can be supported by a substrate which provides room for easy access to the plate with mode control and sense systems.

Abstract translation: 提供了平面振动陀螺仪结构，其本质上是对称的，这有助于使用简单的单片制造工艺，并且能够使用敏感的控制和感测系统。 这些结构的平面振动构件具有中空框架，具有板周边并且定位在框架内的板和多个细长梁，其将板耦合到框架，其中每个梁接近并且基本上平行于 板周边的相应部分。 平面构件的外缘可由基板支撑，该基板通过模式控制和感测系统提供容易接近板的空间。

公开(公告)号：US5859368A

公开(公告)日：1999-01-12

申请号：US632186

申请日：1996-04-15

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: G01C19/5656 ,  G01P9/04

CPC classification number: G01C19/5656

Abstract: A high-accuracy, low-cost rotation rate sensor is based on a vibrating mechanical element induced to laterally oscillate. When rotated, the element, preferably a cantilever beam, is subjected to a Coriolis force that is proportional to the rate of rotation. The Coriolis force, if not counteracted, would cause the beam to move vertically. Vertical motion is detected with a highly sensitive tunneling tip sensor positioned below the beam. A wide bandwidth control circuit applies a counteracting force to the beam to keep the gap between tip and beam constant. This counteracting force varies with and provides an indication of the rotation rate. Lateral oscillation is induced by applying an electrostatic force to the beam with narrow, bipolar pulses that improve the sensor's stability and accuracy. A quadrature suppression circuit is employed if needed to prevent an oscillation that is tending to tilt due to imperfections in sensor construction, by activating electrodes positioned on a substrate below the oscillating beam to counteract the tendency. An alternative embodiment of the invention utilizes a tunneling tip to provide both lateral and vertical position sensing of an oscillating beam.

Abstract translation: 高精度，低成本的旋转速率传感器是基于诱发横向振荡的振动机械元件。 当旋转时，元件，优选地是悬臂梁，受到与旋转速率成比例的科里奥利力。 科里奥利力量，如果没有抵消，将导致梁垂直移动。 使用位于梁下方的高灵敏度隧道尖端传感器检测垂直运动。 宽带宽控制电路向光束施加反作用力以保持尖端和光束之间的间隙恒定。 该反作用力随着旋转速度而变化并提供旋转速率的指示。 通过对具有改善传感器的稳定性和精度的窄双极性脉冲的光束施加静电力而引起横向振荡。 如果需要，采用正交抑制电路，通过激活位于振荡束下方的衬底上的电极来抵消由于传感器结构中的缺陷而倾向于倾斜的振荡，以抵消倾向。 本发明的替代实施例利用隧道尖端来提供摆动梁的横向和垂直位置感测。

公开(公告)号：US5304863A

公开(公告)日：1994-04-19

申请号：US939562

申请日：1992-09-02

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: H03K17/687 ,  H03K17/691 ,  H03K3/45 ,  H03K3/30

CPC classification number: H03K17/691 ,  H03K17/6877

Abstract: A transformer driver having an unlimited duty cycle capability is disclosed herein. The transformer driver 10 of the present invention is coupled to an output circuit 20 and includes a transformer 32 having primary winding and secondary windings 30 and 34. The inventive driver 10 further includes a generator 26 for applying a plurality of charging pulses P1, P2 to the primary transformer winding 30 to keep the transformer from being saturated. A transistor buffer network 36 selectively electrically isolates the output circuit 20 from the transformer. In a particular embodiment the charging pulses P1, P2 serve to maintain the voltage at the control terminal 38 of a power transistor included within the output circuit.

Abstract translation: 本文公开了具有无限占空比能力的变压器驱动器。 本发明的变压器驱动器10耦合到输出电路20，并且包括具有初级绕组和次级绕组30和34的变压器32.本发明的驱动器10还包括用于将多个充电脉冲P1，P2施加到 主变压器绕组30保持变压器饱和。 晶体管缓冲器网络36选择性地将输出电路20与变压器隔离。 在特定实施例中，充电脉冲P1，P2用于维持包括在输出电路内的功率晶体管的控制端子38处的电压。

公开(公告)号：US4426591A

公开(公告)日：1984-01-17

申请号：US175112

申请日：1980-08-04

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: H03K5/08 ,  H03K5/153

CPC classification number: H03K5/082

Abstract: An adaptive comparator is provided which compares a signal from a horizon sensor of a satellite to a predetermined threshold to provide a signal indicative of the relative position of a celestial body with improved noise immunity. When the comparator receives a signal from the horizon sensor which exceeds the threshold, an output is provided which may be used to change the orientation of the spacecraft. The comparator includes circuitry for ascertaining the average of one or more of the most recent input pulses which exceeded the previous threshold. This average is then utilized to set a new or adapted threshold. The subsequent input signal is then compared to the adapted threshold and the recursive process continues.

Abstract translation: 提供了一种自适应比较器，其将来自卫星的水平传感器的信号与预定阈值进行比较，以提供指示具有改善的抗噪声性能的天体的相对位置的信号。 当比较器从水平传感器接收到超过阈值的信号时，提供可用于改变航天器取向的输出。 比较器包括用于确定超过先前阈值的一个或多个最近输入脉冲的平均值的电路。 然后将该平均值用于设置新的或适应的阈值。 然后将随后的输入信号与适应的阈值进行比较，并且递归过程继续。

公开(公告)号：US6164134A

公开(公告)日：2000-12-26

申请号：US239632

申请日：1999-01-29

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: G01C19/5719 ,  G01P15/125 ,  G01P15/14 ,  G01P15/18 ,  G01C19/00

CPC classification number: G01C19/5719 ,  G01P15/125 ,  G01P15/14 ,  G01P15/18 ,  G01P2015/084 ,  G01P2015/0842

Abstract: A balanced vibratory micro-gyroscope having an electrode pattern having four inner drive electrodes and four outer sense electrodes for providing balanced push-pull control of a cloverleaf micro-gyroscope. A control circuit utilizes equal and opposite input signals to the drive electrodes and processes output signals from the sense electrodes to precisely control the drive electrodes. Capacitance is added between opposing drive and sense electrodes pattern in order to null capacitive coupling effects between adjacent drive and sense electrodes. The control circuit linearizes the force on the micro-gyroscope thereby improving performance. Advantage is taken of Coulomb's Law to eliminate an electronic multiplier in the vibration amplitude control loop. A simplified full-wave rectifier further enhances the control circuit and operation of the micro-gyroscope. A closed negative feedback loop in the control circuit provides a corrective signal to the rate driving electrodes through rate sensing signals in order to prevent unwanted harmonic movement in the micro-gyroscope.

Abstract translation: 具有电极图案的平衡振动微型陀螺仪，具有四个内部驱动电极和四个外部感测电极，用于提供三叶草微型陀螺仪的平衡推挽控制。 控制电路利用与驱动电极相等且相反的输入信号，并且处理来自感测电极的输出信号以精确地控制驱动电极。 在相对的驱动和感测电极图案之间增加电容，以消除相邻的驱动电极和感测电极之间的电容耦合效应。 控制电路使微陀螺仪上的力线性化，从而提高性能。 利用库仑定律来消除振幅控制回路中的电子倍增器。 简化的全波整流器进一步增强了微陀螺仪的控制电路和操作。 控制电路中的闭合负反馈回路通过速率感测信号向速率驱动电极提供校正信号，以便防止微陀螺仪中的不必要的谐波运动。

公开(公告)号：US6046556A

公开(公告)日：2000-04-04

申请号：US174643

申请日：1998-10-19

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: H02P27/06 ,  H02P3/08

CPC classification number: H02P27/06

Abstract: A motor current sensing circuit using a single sensing resistor in the motor current path to sense the current from the voltage source. The circuit includes an amplifier and a unity-gain inverter that translate the current across the sensing resistor into a voltage analog of the current in the motor. At any instant in time, the magnitude of the voltage across the sensing resistor is proportional to the magnitude of the motor current. During the forward portion of the duty cycle, a high-speed switch connects the sensor output to the amplified sensed bus current analog. During the reverse portion, the sensor output is connected to the inverted bus current analog. The average value of the sensor output is the voltage analog of the average value of the motor current.

Abstract translation: 电动机电流检测电路在电动机电流路径中使用单个感测电阻器感测来自电压源的电流。 该电路包括一个放大器和一个单位增益的反相器，它将电流传感器的电流转换成电动机电流的模拟电压。 在任何时刻，感测电阻两端的电压幅值与电动机电流的大小成比例。 在占空比的前进部分，高速开关将传感器输出连接到放大的感应母线电流模拟。 在反向部分，传感器输出连接到反相总线电流模拟。 传感器输出的平均值是电机电流的平均值的电压模拟量。

公开(公告)号：US5952573A

公开(公告)日：1999-09-14

申请号：US851039

申请日：1997-05-05

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: G01C19/5656 ,  G01P9/04

CPC classification number: G01C19/5656

Abstract: A cantilevered micro-beam formed on a micro-circuit substrate such that when beam is vibrated it produces an output signal directly related to rotation of the substrate about an axis perpendicular to the beam and the direction of vibration.

Abstract translation: 形成在微电路基板上的悬臂微型光束使得当光束振动时，其产生与垂直于光束的轴线和振动方向垂直的轴线旋转的直接相关的输出信号。

公开(公告)号：US06552604B2

公开(公告)日：2003-04-22

申请号：US10052062

申请日：2002-01-17

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: H03B100

CPC classification number: H03H11/126 ,  H03H11/12 ,  H03H2007/013 ,  H03H2011/0488 ,  H03H2210/012 ,  H03H2210/021

Abstract: A notch filter circuit is provided including a first stage circuit and a second stage circuit. The first stage circuit sums a filter input signal with a filter output signal to form a summation signal. The second stage circuit includes a first tee network and a second tee network. The first tee network low-pass filters the filter input signal to form a first tee output signal. The second tee network high-pass filters the summation signal to form a second tee output signal. A first multiplying digital-to-analog converter is electrically coupled to the first tee network and the second tee network. The first converter modifies the gain of the second tee network in response to a gain signal to form a corrected second tee network signal, thereby adjusting a notch filter frequency.