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1. 发明授权

US3539928A Operational multiplexer 失效
标题翻译：操作多路复用器
公开(公告)号：US3539928A
公开(公告)日：1970-11-10
申请号：US3539928D
申请日：1968-11-13
申请人： UNITED AIRCRAFT CORP
发明人： GARDNER THOMAS E , KUPERSMITH BERTRAM F
IPC分类号： H04J3/04 , H03K17/00
CPC分类号： H04J3/047

2. 发明授权

US3633088A Limit stop servocontrol system 失效
标题翻译：限制停止伺服系统
公开(公告)号：US3633088A
公开(公告)日：1972-01-04
申请号：US3633088D
申请日：1971-03-17
申请人： UNITED AIRCRAFT CORP
发明人： KUPERSMITH BERTRAM F
IPC分类号： G05D3/14 , G05G5/00
CPC分类号： G05D3/1418 , G05B2219/49382 , G05D3/1427
摘要： Unidirectional feedback around a servoamplifier clamps the gain of the amplifier when the position feedback potential indicates the approaching of a stop. The clamping is in response to an amplifier output potential of a polarity that drives the servoed device into the stop, and is inoperative when the amplifier is of a polarity to drive the servoed device away from the stop. Full gain is therefore available when driving away from the stop. Increased accuracy is achieved, eliminating all position loop errors, by utilizing position feedback potential as a summing potential to control the operation of the clamping loop.
摘要翻译：伺服放大器周围的单向反馈会在位置反馈电位指示停止的接近时钳位放大器的增益。钳位是响应于驱动伺服设备进入停止的极性的放大器输出电位，并且当放大器具有驱动伺服设备远离停止的极性时不起作用。因此，当离开停车站时，可获得全部收益。通过利用位置反馈电位作为求和电位来控制钳位回路的运行，可以提高精度，消除所有的位置环路误差。

3. 发明授权

US3863158A Synthetic phasor generator 失效
标题翻译：合成相位发生器
公开(公告)号：US3863158A
公开(公告)日：1975-01-28
申请号：US36706973
申请日：1973-06-04
申请人： UNITED AIRCRAFT CORP
发明人： KUPERSMITH BERTRAM F , CASPER JR CLARENCE
IPC分类号： H03K4/02 , H03B19/00
CPC分类号： H03K4/026
摘要： A stepped approximation of a sine wave is generated by operational amplifiers, having feedback resistors of a given magnitude, which are connected through successive input resistors to a signal representing the magnitude of the desired synthetic sinusoid by means of an electronic multiplexing switch which is advanced by clocking signals spaced one sixteenth of the period of the desired synthetic sinusoid so as to cause 16 steps spanning discrete angular fractions of the period of said sinusoid, the input resistors having magnitudes related to the given magnitudes of said feedback resistors by the sine of the accumulated angle of said angular fractions, in relation to the successive clock signals.
摘要翻译：正弦波的阶梯式近似由具有给定量值的反馈电阻器的运算放大器产生，其通过连续的输入电阻器连接到表示期望的合成正弦波的幅度的信号，该电信号通过电子多路开关被提前时钟信号间隔期望的合成正弦曲线周期的十六分之一，以便产生跨越所述正弦曲线周期的离散角分数的16个步长，输入电阻器具有与所述反馈电阻器的给定幅度相关的幅度，由积累的正弦波所述角度分数的角度相对于连续的时钟信号。

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