公开(公告)号：US4748640A

公开(公告)日：1988-05-31

申请号：US831565

申请日：1986-02-21

申请人： Peter Staley ,  David Coyne

发明人： Peter Staley ,  David Coyne

IPC分类号： G06F7/62 ,  H03K4/02 ,  H03K4/94 ,  H03K5/00 ,  H04L25/03 ,  H03B28/00 ,  H03K7/06 ,  H04L27/10

CPC分类号： H04L25/03834 ,  G06F7/62 ,  H03K4/026 ,  H03K4/94 ,  H03K5/00006

摘要： The input digital signal is applied to a transition detector which causes an up/down counter to increment or decrement each time a transition is detected. The output of the counter is utilized to address a read only memory (ROM) which, in turn, generates binary words representing first and second integers. These binary words are used to control a programmable divider to generate an output having a frequency which moves between two values corresponding to the digital input. The rate at which the frequency changes between the two values is controlled by the ROM contents. In the implementation, the frequency changes with a raised cosine shape.

摘要翻译： 输入数字信号被施加到转换检测器，其使得每次检测到转变时使升/减计数器递增或递减。 计数器的输出被用于寻址只读存储器（ROM），其又产生表示第一和第二整数的二进制字。 这些二进制字用于控制可编程分频器以产生具有在对应于数字输入的两个值之间移动的频率的输出。 两个值之间频率变化的速率由ROM内容控制。 在实施中，频率随着升余弦形状而变化。

公开(公告)号：US4796004A

公开(公告)日：1989-01-03

申请号：US829624

申请日：1986-02-14

申请人： David Rich ,  Peter Staley ,  David Coyne

发明人： David Rich ,  Peter Staley ,  David Coyne

IPC分类号： G06F7/50 ,  H03K3/356 ,  H03K5/15 ,  H03M3/02

CPC分类号： G06F7/5095 ,  H03K3/356104 ,  H03K5/15066 ,  H03M3/43 ,  G06F2207/388 ,  H03M3/454 ,  H03M3/462

摘要： A feedback coder, which employs simple CMOS push/pull amplifiers as gain elements, along with a bistable circuit, in its preferred embodiment takes the form of a second-order delta-sigma modulator. The output of the modulator is converted into pulse code modulated words by a finite impulse response filter which incorporates a partial coefficient generator utilizing simplified logic. The generator output is provided to an accumulator in which the stages operate at reduced speed. A simple multiplexer generates a serial output. The entire converter can be integrated on a semiconductor chip of relatively small area.

公开(公告)号：US4937577A

公开(公告)日：1990-06-26

申请号：US65939

申请日：1987-06-23

申请人： David Rich ,  Peter Staley

发明人： David Rich ,  Peter Staley

IPC分类号： G06F7/50 ,  H03H17/06 ,  H03K3/356 ,  H03K5/15 ,  H03M3/02

CPC分类号： G06F7/5095 ,  H03H17/0607 ,  H03H17/0664 ,  H03K3/356104 ,  H03K5/15066 ,  G06F2207/388

摘要： A feedback coder, which employs simple CMOS push/pull amplifiers as gain elements, along with a bistable circuit, in its preferred embodiment takes the form of a second-order delta-sigma modulator. The output of the modulator is converted into pulse code modulated words by a finite impluse response filter which incorporates a partial coefficient generator utilizing simplified logic. The generator output is provided to an accumulator in which the stage operate at reduced speed. A simple multiplexer generates a serial output. The entire converter can be integrated on a semiconductor chip of relatively small area.

摘要翻译： 在其优选实施例中采用简单CMOS推/拉放大器作为增益元件的反馈编码器连同双稳态电路采用二阶Δ-Σ调制器的形式。 调制器的输出通过有限的模拟响应滤波器转换成脉冲码调制字，该滤波器包含利用简化逻辑的部分系数发生器。 发电机输出被提供给一个蓄能器，在该蓄能器中，该级以较低的速度工作。 一个简单的多路复用器产生串行输出。 整个转换器可集成在相对较小面积的半导体芯片上。

公开(公告)号：US20070252603A1

公开(公告)日：2007-11-01

申请号：US11380535

申请日：2006-04-27

申请人： Carlos Restrepo ,  Peter Staley

发明人： Carlos Restrepo ,  Peter Staley

IPC分类号： G01R31/12

CPC分类号： H02H1/0015 ,  H02H1/04 ,  H02H3/44

摘要： Certain exemplary embodiments can comprise an arc fault detection circuit. The arc fault detection circuit can comprise a zero crossing analysis sub-system comprising a counter configured to determine, for a first waveform, a count of dips that occur between a pair of predetermined zero crossings of a second waveform. The second waveform can be obtained from an electrical circuit.

摘要翻译： 某些示例性实施例可以包括电弧故障检测电路。 电弧故障检测电路可以包括过零分析子系统，其包括计数器，该计数器被配置为针对第一波形确定出现在第二波形的一对预定过零点之间的下降计数。 第二波形可以从电路获得。

公开(公告)号：US4860012A

公开(公告)日：1989-08-22

申请号：US65263

申请日：1987-06-22

申请人： David Rich ,  Peter Staley

发明人： David Rich ,  Peter Staley

IPC分类号： G06F7/50 ,  H03K3/356 ,  H03K5/15 ,  H03M3/02

CPC分类号： G06F7/5095 ,  H03K3/356104 ,  H03K5/15066 ,  H03M3/484 ,  G06F2207/388 ,  H03M3/424 ,  H03M3/49

摘要： A feedback coder, which employs simple CMOS push/pull amplifiers as gain elements, along with a bistable circuit, in its preferred embodiment takes the form of a second-order delta-sigma modulator. The output of the modulator is converted into pulse code modulated words by a finite impulse response filter which incorporates a partial coefficient generator utilizing simplified logic. The generator output is provided to an accumulator in which the stages operate at reduced speed. A simple multiplexer generates a serial output. The entire converter can be integrated on a semiconductor chip of relatively small area.

摘要翻译： 在其优选实施例中采用简单CMOS推/拉放大器作为增益元件的反馈编码器连同双稳态电路采用二阶Δ-Σ调制器的形式。 通过有限脉冲响应滤波器将调制器的输出转换成脉冲编码调制字，该滤波器包含利用简化逻辑的部分系数发生器。 发电机输出被提供给蓄能器，其中级以较低的速度工作。 一个简单的多路复用器产生串行输出。 整个转换器可集成在相对较小面积的半导体芯片上。

公开(公告)号：US07864492B2

公开(公告)日：2011-01-04

申请号：US11978969

申请日：2007-10-30

申请人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel ,  Solomon R. Titus ,  Joselito Endozo

发明人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel ,  Solomon R. Titus ,  Joselito Endozo

IPC分类号： H02H3/00

CPC分类号： H02H1/0015 ,  H02H1/0092 ,  H02H3/33

摘要： In accordance with one aspect the present disclosure is directed toward a method for detecting arc faults on a power line. The method may include monitoring power signals associated with a power line and filtering the power signals to produce a high frequency signal and a low frequency signal. A mask signal may generated based on the low frequency signal, and the high frequency signal may be analyzed to extract a broadband portion of the high frequency signal. A fault counter may be incremented if the magnitude of the broadband portion is approximately greater than a first threshold level. A fault counter may be decremented if the magnitude of the broadband portion is approximately less than the first threshold level. A trip signal is provided to a switching device associated with the power line if the fault counter exceeds a predetermined fault limit.

摘要翻译： 根据一个方面，本公开涉及一种用于检测电力线上的电弧故障的方法。 该方法可以包括监视与电力线相关联的功率信号并对功率信号进行滤波以产生高频信号和低频信号。 可以基于低频信号生成屏蔽信号，并且可以分析高频信号以提取高频信号的宽带部分。 如果宽带部分的大小近似大于第一阈值电平，则故障计数器可以增加。 如果宽带部分的大小近似小于第一阈值电平，故障计数器可能会减少。 如果故障计数器超过预定的故障限制，则将跳闸信号提供给与电力线相关联的开关装置。

公开(公告)号：US20080106832A1

公开(公告)日：2008-05-08

申请号：US11978969

申请日：2007-10-30

申请人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel

发明人： Carlos Restrepo ,  Peter Staley ,  Amit Nayak ,  Vaske Mikani ,  Hugh Kinsel

IPC分类号： H02H3/16

CPC分类号： H02H1/0015 ,  H02H1/0092 ,  H02H3/33

摘要： In accordance with one aspect the present disclosure is directed toward a method for detecting arc faults on a power line. The method may include monitoring power signals associated with a power line and filtering the power signals to produce a high frequency signal and a low frequency signal. A mask signal may generated based on the low frequency signal, and the high frequency signal may be analyzed to extract a broadband portion of the high frequency signal. A fault counter may be incremented if the magnitude of the broadband portion is approximately greater than a first threshold level. A fault counter may be decremented if the magnitude of the broadband portion is approximately less than the first threshold level. A trip signal is provided to a switching device associated with the power line if the fault counter exceeds a predetermined fault limit.

摘要翻译： 根据一个方面，本公开涉及一种用于检测电力线上的电弧故障的方法。 该方法可以包括监视与电力线相关联的功率信号并对功率信号进行滤波以产生高频信号和低频信号。 可以基于低频信号生成屏蔽信号，并且可以分析高频信号以提取高频信号的宽带部分。 如果宽带部分的大小近似大于第一阈值电平，则故障计数器可以增加。 如果宽带部分的大小近似小于第一阈值电平，故障计数器可能会减少。 如果故障计数器超过预定的故障限制，则将跳闸信号提供给与电力线相关联的开关装置。