公开(公告)号：US4305035A

公开(公告)日：1981-12-08

申请号：US68832

申请日：1979-08-22

申请人： Dedina O. Mach ,  Roger E. Wiegel

发明人： Dedina O. Mach ,  Roger E. Wiegel

IPC分类号： G01C17/30 ,  G01R33/04

CPC分类号： G01C17/30 ,  G01R33/04

摘要： A magnetic field sensor is illustrated which in one useful application comprised two orthogonally positioned coils each having its own electronics and each wound on separate small strips of core material and positioned in a gimballed fixture for use as an electronic compass. The sensing coils in each sensor sense only the components of magnetic field in that plane with one output being representative of the field along the axis of one of the coils and the other being representative of the field along the axis of the other coil. A secondary winding cooperating with each of these coils provides an output signal which is operated upon to remove any DC components and provide a signal indicative in waveshape of the flux in the core. Opposite polarity peak detectors are then used to determine the relative peak voltages with respect to ground for the purpose of determining the DC component which had been removed. The DC component is indicative of any external fields affecting the flux levels in the core material. The DC value is obtained by summing the outputs of the two peak detectors and accumulating the results prior to using this as an apparatus output and as a feedback signal to cancel the effects of the external field in the core and thus maintain maximum sensitivity of the sensor mechanism.

摘要翻译： 示出了磁场传感器，其在一个有用应用中包括两个正交定位的线圈，每个线圈具有其自己的电子器件，并且每个线圈缠绕在分离的芯材料条上并且定位在用于电子罗盘的万向夹具中。 每个传感器中的感测线圈仅感测该平面中的磁场分量，其中一个输出表示沿着一个线圈的轴的场，另一个表示沿着另一个线圈的轴的场。 与这些线圈中的每一个配合的次级绕组提供输出信号，该输出信号被操作以去除任何DC分量并且提供指示芯中的通量波形的信号。 然后使用相对极性峰值检测器确定相对于地面的相对峰值电压，以确定已被去除的直流分量。 DC分量表示影响芯材料中的通量水平的任何外部场。 通过将两个峰值检测器的输出相加并在将其用作设备输出之前累积结果作为反馈信号来获得DC值，以消除核心中的外部场的影响，从而保持传感器的最大灵敏度 机制。

公开(公告)号：US4528459A

公开(公告)日：1985-07-09

申请号：US503215

申请日：1983-06-10

申请人： Roger E. Wiegel

发明人： Roger E. Wiegel

IPC分类号： H02J7/34 ,  H02J9/06

CPC分类号： H02J7/34 ,  H02J9/061 ,  Y10T307/625 ,  Y10T307/729

摘要： Switching apparatus for connecting a device requiring a backup power source to a battery bus upon disconnect or failure of the primary power source, without interruption of power, and without loading the backup power source when the device is off. Therefore, the apparatus provides nearly total or complete isolation of the backup source from the load when the device (load) is off.

摘要翻译： 开关装置，用于在主电源断开或故障时将需要备用电源的设备连接到电池总线，而不中断电源，并且在设备关闭时不加载备用电源。 因此，当设备（负载）关闭时，该设备几乎完全或完全地隔离备用源与负载的隔离。

公开(公告)号：US5428265A

公开(公告)日：1995-06-27

申请号：US202322

申请日：1994-02-28

申请人： Lawrence A. Booth, Jr. ,  David W. Luz ,  Robert J. Vitello ,  Roger E. Wiegel

发明人： Lawrence A. Booth, Jr. ,  David W. Luz ,  Robert J. Vitello ,  Roger E. Wiegel

IPC分类号： H05B41/392 ,  H05B37/02

CPC分类号： H05B41/3922 ,  Y10S315/04

摘要： A processor controlled fluorescent lamp dimmer circuit is shown for use in an aircraft display system utilizing a fluorescent lamp in the backlight system of individual LCD display devices. By use of a processor control dimming circuit in control over each LCD display, greater flexibility, e.g., as by adjustment in software parameters, is made possible in the operation of a dimmer control circuit. The dimmer control circuit reacts to such conditions as ambient light within the aircraft cockpit, fluorescent lamp light energy output, and fluorescent lamp temperature to provide substantially consistent actual and perceived luminance on the LCD display as a function of such detected conditions. Furthermore, the processor control achieves the desired luminance without over-driving, and therefore deteriorating, the lamps. As a result, the pilot of the aircraft enjoys a more reliable and consistent LCD display and need not be distracted by variation in luminance of the LCD display in operation of the aircraft.

摘要翻译： 显示了处理器控制的荧光灯调光器电路，用于在各个LCD显示装置的背光系统中利用荧光灯的飞行器显示系统。 通过使用处理器控制调光电路来控制每个LCD显示器，例如在调光控制电路的操作中，例如通过软件参数的调节，可以实现更大的灵活性。 调光控制电路对飞机驾驶舱内的环境光，荧光灯光能输出和荧光灯温度等条件作出反应，以便根据这种检测条件在LCD显示器上提供基本一致的实际和感知亮度。 此外，处理器控制实现期望的亮度，而不会过度驱动，并因此劣化灯。 结果，飞机的飞行员享有更可靠和一致的LCD显示器，并且不需要在飞行器的操作中的LCD显示器的亮度变化中分心。

公开(公告)号：US4609906A

公开(公告)日：1986-09-02

申请号：US526859

申请日：1983-08-26

申请人： Roger E. Wiegel

发明人： Roger E. Wiegel

IPC分类号： H03M1/00

CPC分类号： H03M1/02

摘要： A circuit operable in two modes alternatively to provide a digital-to-analog converter capability and an analog-to-digital converter capability is disclosed utilizing a single digital multiplexer at a digital input and two analog multiplexers to control signal path routing. A track-and-hold circuit is utilized in the analog-to-digital configuration as a sample-and-hold, and alternatively in the digital-to-analog configuration as an operational amplifier.

摘要翻译： 利用数字输入端的单个数字多路复用器和两个模拟多路复用器来公开可以以两种模式可操作以提供数模转换器能力和模数转换器能力的电路来控制信号路径路由。 跟踪和保持电路在模数 - 数字配置中被用作采样保持，或者在作为运算放大器的数模转换配置中。