公开(公告)号：US5544065A

公开(公告)日：1996-08-06

申请号：US287972

申请日：1994-08-09

Applicant: Joseph C. Engel ,  Thomas J. Kenny

Inventor： Joseph C. Engel ,  Thomas J. Kenny

IPC: G01R19/25 ,  G01R23/10 ,  H03M1/00

CPC classification number: G01R19/25

Abstract: The frequency and sampling interval for synchronous sampling of an ac signal of unknown or varying frequency are accurately determined within one cycle by apparatus including an input circuit which generates a single input pulse for each cycle of the ac signal. The count of clock pulses maintained by a free running counter is recorded at each input pulse. The frequency of the ac signal is determined from the period of the ac signal calculated from the difference in the count stored at consecutive input pulses. This difference in the count is divided by the desired sampling rate to generate the sampling count which is repetitively added to the current running count to generate an interrupt count. A sampling interrupt utilized by an analog to digital converter to digitize the ac signal is generated when the running count equals the interrupt count. The same sampling interval is used for each phase of a multiphase signal; however, a separate sampling interval is established for each ac signal in a multisignal system.

Abstract translation: 未知或变化频率的交流信号的同步采样的频率和采样间隔在一个周期内被准确地确定，该装置包括为ac信号的每个周期产生单个输入脉冲的输入电路。 每个输入脉冲记录由自由运行计数器维持的时钟脉冲计数。 根据从连续的输入脉冲存储的计数的差计算出的交流信号的周期来确定交流信号的频率。 将该计数的差异除以期望的采样率，以产生重复地添加到当前运行计数以产生中断计数的采样计数。 当运行计数等于中断计数时，会产生模数转换器对ac信号进行数字化的采样中断。 对于多相信号的每个相位使用相同的采样间隔; 然而，在多信号系统中为每个交流信号建立单独的采样间隔。

公开(公告)号：US5483408A

公开(公告)日：1996-01-09

申请号：US218008

申请日：1994-03-25

Applicant: Joseph J. Matsko ,  Joseph C. Engel ,  Alan B. Shimp

Inventor： Joseph J. Matsko ,  Joseph C. Engel ,  Alan B. Shimp

IPC: H02H3/093 ,  H02H3/00 ,  H02H3/04 ,  H02H3/08 ,  H02H3/10 ,  H02H3/34 ,  H02J3/26 ,  H02H3/16

CPC classification number: H02H3/083 ,  H02H3/006 ,  H02H3/04 ,  H02H3/0935

Abstract: A circuit interrupting device provides for operator selection of protection parameters for a neutral conductor separate from operator selected phase protection.

Abstract translation: 电路中断装置提供操作员选择与操作者选择的相位保护分开的中性导体的保护参数。

公开(公告)号：US5420799A

公开(公告)日：1995-05-30

申请号：US185668

申请日：1994-01-21

Applicant: Clyde O. Peterson ,  Joseph C. Engel ,  Denis A. Mueller ,  Richard B. Bell ,  Robert L. Cather

Inventor： Clyde O. Peterson ,  Joseph C. Engel ,  Denis A. Mueller ,  Richard B. Bell ,  Robert L. Cather

IPC: G01R21/133 ,  G01R21/06

CPC classification number: G01R21/133

Abstract: A PC computer monitors the energy consumed at a plurality of local stations placed behind the electrical meter of the utility company for individual billing of the local users, a bidirectional communication line being used between the PC computer and the plurality of local stations. A command from the PC computer causes the totalized energy to be stored at each station, and thereafter the PC computer derives individually the results for separate energy estimations and central billing.

Abstract translation: PC计算机监视放置在公用事业公司的电表之后的多个本地电台的能量，用于本地用户的单独计费，在PC计算机和多个本地站之间使用的双向通信线路。 来自PC计算机的命令导致在每个站点存储累计的能量，此后，PC计算机单独地分别得出用于单独的能量估计和中央计费的结果。

公开(公告)号：US5325315A

公开(公告)日：1994-06-28

申请号：US73636

申请日：1993-06-08

Applicant: Joseph C. Engel ,  Gary F. Saletta ,  Marlan L. Winter ,  Edward C. Prather

Inventor： Joseph C. Engel ,  Gary F. Saletta ,  Marlan L. Winter ,  Edward C. Prather

IPC: H01H47/32 ,  G01R35/00

CPC classification number: H01H47/325

Abstract: Process and apparatus for calibrating an electrical device such as a circuit breaker, motor controller or monitor is taught. A precision power supply device is interconnected by way of appropriate input channels to the device to be calibrated for supplying a precise accurate calibration variable as an input. A personal computer PC is interlinked by way of a communications network with the apparatus to be calibrated and is also interlinked with the precision supply device so that the personal computer PC has available the exact value of input variable utilized. Gain adjustment calibration is made by supplying the predetermined value of circuit variables, for instance 10 amperes or 120V to the input terminals of the device being calibrated. Upon command, the personal computer PC instructs the device being calibrated to deliver to the personal computer PC those values of input variable which the device being calibrated interprets as the input variable value. The personal computer PC compares this value with the actual value and generates a correction factor which the personal computer PC sends back to the device being calibrated for storage in an EEPROM. Consequently, during subsequent use after the calibration procedure has been completed and the calibration features have been safely "locked" away in the EEPROM, all readings will be adjusted by the aforementioned calibration factor to compensate for errors which may exist in other portions of the device being calibrated.

Abstract translation: 教导了诸如断路器，电动机控制器或监视器之类的电气装置的校准过程和装置。 精密电源装置通过适当的输入通道与要校准的装置相互连接，以提供精确的精确校准变量作为输入。 个人计算机PC通过通信网络与要校准的设备相互连接，并且还与精密供应设备互连，使得个人计算机PC具有所使用的输入变量的确切值。 通过将电路变量的预定值（例如10安培或120V）提供给正在校准的设备的输入端子来进行增益调节校准。 根据命令，个人计算机PC指示被校准的设备向个人计算机PC传送被校准的设备的输入变量的值被解释为输入变量值。 个人计算机PC将该值与实际值进行比较，并产生校正因子，个人计算机PC发送回被校准的设备以存储在EEPROM中。 因此，在校准过程完成并且校准特征已被安全地“锁定”在EEPROM中之后的随后使用中，所有读数将通过上述校准因子进行调整，以补偿可能存在于器件的其它部分中的错误 被校准。

公开(公告)号：US5017859A

公开(公告)日：1991-05-21

申请号：US389097

申请日：1989-08-03

Applicant: Joseph C. Engel ,  Denis A. Mueller ,  Allan I. Bennett

Inventor： Joseph C. Engel ,  Denis A. Mueller ,  Allan I. Bennett

IPC: G01R15/14 ,  G01R15/16

CPC classification number: G01R15/16 ,  G01R15/142

Abstract: The first capacitor of a capacitive divider adapted for measuring the voltage on a bus bar utilizes the bus bar as one plate, the normal insulation provided on the bus bar as the dielectric and a first conductive layer applied over the insulation as the second plate. While a separate capacitor can be used for the second capacitor of the capacitive divider, preferably the first conductive layer serves as a common plate for both capacitors, with a second insulation layer applied over the first conductive layer forming the dielectric of the second capacitor, and a second conductive layer applied over the second insulation layer serving as the second plate which is grounded. The voltage on the common plate formed by the first conductive layer is applied to a voltmeter to provide a voltage reading proportional to the voltage on the bus bar. A particularly simple, compact combined voltage and current sensor is provided by aligning a mutual inductor current sensor with the integral capacitive divider so that the outer conductive layer of the capacitive divider serves a voltage shield for the current sensor.

Abstract translation: 用于测量母线上的电压的电容分压器的第一电容器将母线作为一个板，将作为电介质的总线上提供的标准绝缘体和作为第二板施加在绝缘体上的第一导电层。 虽然单独的电容器可以用于电容分压器的第二电容器，但优选地，第一导电层用作两个电容器的公共板，其中第二绝缘层施加在形成第二电容器的电介质的第一导电层上，以及 施加在用作接地的第二板的第二绝缘层上的第二导电层。 将由第一导电层形成的公共板上的电压施加到电压表，以提供与母线上的电压成比例的电压读数。 通过将互感器电流传感器与积分电容分压器对准来提供特别简单，紧凑的组合电压和电流传感器，使得电容分压器的外导电层用于电流传感器的电压屏蔽。

公开(公告)号：US4747061A

公开(公告)日：1988-05-24

申请号：US840270

申请日：1986-03-17

Applicant: James L. Lagree ,  Joseph C. Engel

Inventor： James L. Lagree ,  Joseph C. Engel

IPC: G01R15/09 ,  G01R19/25 ,  H02J9/06 ,  H02J9/08 ,  G01R21/00 ,  H02H3/26

CPC classification number: G01R19/25 ,  G01R15/09 ,  H02J9/06 ,  H02J9/08 ,  Y10T307/313 ,  Y10T307/735

Abstract: An automatic transfer switch is taught which includes as part thereof a voltage sensing device which is interconnected with one of the lines to be monitored and controlled by the automatic transfer switch and neutral. This voltage may vary over a wide range and it is desired to provide a universal transfer switch control for operation over the wide range. The output analog voltage is provided to an analog-to-digital converter which has a maximum number of output bits. In order to keep the resolution of the output digital signal from the analog converter as high as possible, it is necessary to range the input voltage according to a menu of potential ranging values which are stored in the memory of a microprocessor. A programming device is utilized to input the line voltage and the microprocessor determines the maximum value for the ranging constant as a function thereof. The output analog voltage is reduced by this factor then provided to the analog-to-digital converter. The greater the reduction, the lower the sensitivity. However, the microprocessor chooses only that amount of discrete reduction necessary to prevent the expected input line voltage from exceeding the maximum digital output capacity of the A-to-D converter. The output of the A-to-D converter is then supplied to the microprocessor for processing and the amount of reduction is compensated for by multiplying the output signal by the increase of the conversion factor.

Abstract translation: 教导了一种自动转换开关，其包括作为其一部分的电压感测装置，该电压感测装置与由自动转换开关和中性线监视和控制的一条线互连。 该电压可以在宽范围内变化，并且期望提供用于在宽范围内操作的通用转换开关控制。 输出模拟电压被提供给具有最大数目的输出位的模数转换器。 为了使来自模拟转换器的输出数字信号的分辨率尽可能高，需要根据存储在微处理器的存储器中的潜在测距值的菜单对输入电压进行范围调整。 使用编程装置来输入线路电压，并且微处理器作为其功能确定测距常数的最大值。 输出模拟电压通过该因子减小，然后提供给模数转换器。 减少越大，灵敏度越低。 然而，微处理器仅选择必要的量的这种量来防止预期输入线电压超过A转D转换器的最大数字输出容量。 然后将A-D转换器的输出提供给微处理器进行处理，并且通过将输出信号乘以转换因子的增加来补偿减少量。

公开(公告)号：US4646319A

公开(公告)日：1987-02-24

申请号：US706079

申请日：1985-02-27

Applicant: Joseph C. Engel ,  Dirk J. Boomgaard ,  Leonard C. Vercellotti

Inventor： Joseph C. Engel ,  Dirk J. Boomgaard ,  Leonard C. Vercellotti

IPC: H04B3/56 ,  H04L12/40 ,  H04L5/14

CPC classification number: H04L12/403 ,  H04B3/56 ,  H04L12/40 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5483 ,  H04B2203/5487 ,  H04B2203/5491

Abstract: A bidirectional coupling circuit is provided for carrier based communication and control networks in which a coupling transformer is employed having relatively decoupled primary and secondary windings which are each tuned to the carrier frequency. Separate secondary windings are wound on the same core leg, one of these secondary windings being employed as a transmitter winding which is referenced to a positive supply voltage and the other winding being employed as a receiver winding which is referenced to ground. The coupling transformer is arranged to have a relatively high input impedance at the carrier frequency but due to series resonant effects has a relatively low impedance for undesired signals on either side of the carrier frequency. An operational amplifier is connected to the receiver winding to provide high gain amplification for a signal received from the common network power line without loading the other windings of the transformer. A transistor or FET is connected in series with the transmitter secondary winding to a positive voltage supply so that a relatively high amplitude transmitter signal is produced on the common power line.

Abstract translation: 提供了一种用于基于载波的通信和控制网络的双向耦合电路，其中使用耦合变压器，其具有相对去耦的初级和次级绕组，每个绕组被调谐到载波频率。 单独的次级绕组缠绕在相同的芯柱上，这些次级绕组中的一个被用作以正电源电压为基准的发射器绕组，而另一绕组被用作参考地的接收器绕组。 耦合变压器布置成在载波频率处具有相对高的输入阻抗，但是由于串联谐振效应对于载波频率的任一侧上的不期望信号具有相对较低的阻抗。 一个运算放大器连接到接收器绕组，为从公共网络电力线接收的信号提供高增益放大，而不需要加载变压器的其他绕组。 将晶体管或FET与发射机次级绕组串联连接到正电压源，使得在公共电力线上产生相对高幅度的发送器信号。

公开(公告)号：US4626831A

公开(公告)日：1986-12-02

申请号：US725179

申请日：1985-04-19

Applicant: Joseph C. Engel

Inventor： Joseph C. Engel

IPC: G06F3/05 ,  G06F11/00 ,  H03M1/12 ,  G08B23/00 ,  H03L5/00

CPC classification number: G06F3/05 ,  G06F11/0757

Abstract: An analog signal processing circuit including both an analog signal multiplexer and a ranging circuit in cascade therewith is adapted for use in an integrated circuit. The multiplexer has a plurality of input current paths and an output current path. It responds to a set of coded selection signals to couple one of the input current paths to the output current path to permit current therebetween and includes another circuit for maintaining the selected input current path at a predetermined potential, preferably ground potential. The ranging circuit has its input current path coupled to the output current path of the multiplexer and includes a plurality of current splitters coupled in a cascaded chain having one end of the chain coupled to its input current path. The ranging circuit responds to another set of coded selection signals to draw current from one and another current paths to the output current path of the multiplexer. Current representative of the current only through the other current paths of the current splitters is provided to the output current path of the ranging circuit. Accordingly, the current of the multiplexer is ranged at the output current path of the ranging circuit in accordance with the code of the selection signals of the ranging circuit.

Abstract translation: 包括模拟信号多路复用器和级联的测距电路的模拟信号处理电路适用于集成电路。 多路复用器具有多个输入电流路径和输出电流路径。 它响应于一组编码选择信号以将输入电流路径中的一个耦合到输出电流路径以允许其间的电流，并且包括用于将所选择的输入电流路径保持在预定电位，优选地电势的另一电路。 测距电路的输入电流路径耦合到多路复用器的输出电流路径，并且包括耦合在级联链中的多个电流分流器，其中链的一端耦合到其输入电流路径。 测距电路响应于另一组编码选择信号，以将电流从一个和另一个电流路径抽取到多路复用器的输出电流路径。 仅通过电流分路器的其它电流路径的电流代表电流被提供给测距电路的输出电流路径。 因此，多路复用器的电流根据测距电路的选择信号的编码在测距电路的输出电流路径上。

公开(公告)号：US4471217A

公开(公告)日：1984-09-11

申请号：US44617

申请日：1979-06-01

Applicant: Joseph C. Engel

Inventor： Joseph C. Engel

IPC: G06K7/10 ,  G06K7/12 ,  G06K17/00

CPC classification number: G06K7/1092 ,  G06K17/0032 ,  G06K7/12

Abstract: An optical reading system employing a commercially available line scanning camera which is sensitive to the ink employed in preprinted document formats. The sensitivity of a line scan camera to the preprinted ink formats is minimized by employing an incandescent document illuminating source, a lens system for the line scan camera which is optimized for use in the near infrared region, and an infrared pass filter positioned between the line scan camera lens system and the document to filter the light reflected from the document.

Abstract translation: 一种光学读取系统，采用市售线扫描照相机，其对以预打印文档格式采用的墨水敏感。 通过采用白炽文件照明源，用于在近红外区域中使用的线扫描照相机的透镜系统以及位于线路扫描照相机之间的红外线通过滤光器，线扫描照相机对预打印墨水格式的灵敏度被最小化 扫描相机镜头系统和文档以过滤从文档反射的光。

公开(公告)号：US4335413A

公开(公告)日：1982-06-15

申请号：US140556

申请日：1980-04-15

Applicant: Joseph C. Engel ,  John A. Wafer ,  Bernard J. Mercier ,  Joseph J. Matsko

Inventor： Joseph C. Engel ,  John A. Wafer ,  Bernard J. Mercier ,  Joseph J. Matsko

IPC: H02H3/093 ,  H01H73/14 ,  H02H3/04 ,  H02H3/05

CPC classification number: H01H73/14 ,  H02H3/04 ,  H01H2071/006

Abstract: A circuit breaker includes a microcomputer-based trip unit, and a remote indicator unit and power supply. The trip unit includes an optically-coupled data output system and means for generating a pulse code containing cause-of-trip information and excess demand alarm information. The remote indicator unit includes an optically coupled input circuit and a plurality of light emitting diodes to indicate cause of trip and excess demand alarm information upon receipt of an appropriate pulse code pattern. The remote indicating unit also includes relays to provide control of external alarm circuitry upon receipt of cause of trip and demand alarm information. The remote indicator unit further includes a power supply for supplying operating power to the remote indicator unit and to the trip unit. The power supply is powered both from an external AC line connection and from internal rechargeable batteries.

Abstract translation: 断路器包括基于微型计算机的跳闸单元和远程指示器单元和电源。 跳闸单元包括光耦合数据输出系统和用于产生包含旅途信息和过量需求警报信息的脉冲代码的装置。 远程指示器单元包括光耦合的输入电路和多个发光二极管，用于在接收到适当的脉冲编码模式时指示跳闸和超出需求报警信息的原因。 远程指示单元还包括继电器，用于在接收到跳闸和需求报警信息的原因时提供对外部报警电路的控制。 远程指示器单元还包括用于向远程指示器单元和跳闸单元提供操作电力的电源。 电源由外部交流线路连接和内部可充电电池供电。