公开(公告)号：US20050105311A1

公开(公告)日：2005-05-19

申请号：US10953344

申请日：2004-09-29

Applicant: Marco Soldano

Inventor： Marco Soldano

IPC: G05F20060101 ,  H02M3/335

CPC classification number: H02M1/4225 ,  H02M7/219 ,  Y02B70/126 ,  Y02P80/112

Abstract: The bridgeless boost topology reduces the power dissipation, cost, and size of prior PFC systems by eliminating the intrinsic loss of the input rectifier bridge. Sensing of the input line voltage by the controller is unnecessary. The use of One Cycle Control (also known as Single Cycle Control) allows the Power Factor Correction function to be performed without complex rectification networks to obtain the AC line voltage reference. The use of bi-directional switches makes it possible to control inrush current (the startup over-current due to the charging of the output bulk capacitor), which allows elimination of over-current limiting devices and reduction of the diode surge capability requirements. Moving the boost inductor to the system input adds an additional filtering function, reducing the cost of input EMI filtering.

Abstract translation: 无桥升压拓扑通过消除输入整流桥的固有损耗，降低了现有PFC系统的功耗，成本和尺寸。 由控制器检测输入线电压是不必要的。 使用单周期控制（也称为单周期控制）允许在没有复杂整流网络的情况下执行功率因数校正功能，以获得交流线路电压参考。 双向开关的使用使得可以控制浪涌电流（由于输出大容量电容器的充电而引起的启动过电流），这允许消除过流限制装置并降低二极管浪涌能力要求。 将升压电感器移动到系统输入端增加了额外的滤波功能，降低了输入EMI滤波的成本。

公开(公告)号：US4147118A

公开(公告)日：1979-04-03

申请号：US851072

申请日：1977-11-14

Applicant: Kenneth D. Adams

Inventor： Kenneth D. Adams

IPC: D05B3/02 ,  D05B20060101 ,  D05B3/00 ,  D05B3/04 ,  D05B19/02 ,  D05B21/00 ,  D05B27/00 ,  G05F20060101

CPC classification number: D05B19/02

Abstract: A sewing machine wherein the needle stitch position coordinates are controlled electronically is provided with mechanical means for controlling feed stitch position coordinates, and with means for prescribing combined needle stitch position and feed stitch position coordinates enabling various predetermined patterns to be produced on the machine.

Abstract translation: 具有电子控制针迹位置坐标的缝纫机设置有用于控制进给针迹位置坐标的机械装置，以及用于规定组合针迹位置和进给针迹位置坐标的装置，使得能够在机器上产生各种预定图案。

公开(公告)号：US3775647A

公开(公告)日：1973-11-27

申请号：US3775647D

申请日：1972-08-21

Applicant: JOHNSON CO E F

Inventor： BOWEN J

IPC: H01G5/16 ,  G05F20060101 ,  H01G20060101 ,  H01G5/04 ,  H01G5/14 ,  H01G5/18 ,  H03H20060101 ,  H05K1/18

CPC classification number: H01G5/12

Abstract: A variable impedance is comprised of a stationary base having a surface which is partially coated with a conductive material to form a first element of the variable impedance. A slidable base is mounted for longitudinal movement on the stationary base. The slidable base includes conductive biasing members to bias a second element of the variable impedance carried thereby, to engage the first element on the stationary base. One of the elements is comprised of suitable impedance material for the variable impedance range desired and includes an electrically conductive top surface. The slidable base includes an electrically conductive portion to form a sliding electrical contact with a conductive electrode on the stationary base so that the impedance may be varied by moving the slidable base longitudinally on the stationary base.

Abstract translation: 可变阻抗由具有部分涂覆有导电材料的表面的固定基底构成，以形成可变阻抗的第一元件。 一个可滑动的基座安装在固定基座上纵向移动。 可滑动底座包括导电偏置构件，以偏置由此承载的可变阻抗的第二元件，以将固定基座上的第一元件接合。 元件之一包括用于所需可变阻抗范围的合适阻抗材料，并且包括导电顶表面。 可滑动基座包括导电部分，以与固定基座上的导电电极形成滑动电接触，从而可以通过在固定基座上纵向移动可滑动的基座来改变阻抗。

公开(公告)号：US3686551A

公开(公告)日：1972-08-22

申请号：US3686551D

申请日：1971-07-30

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： PETERSON ROBERT S

IPC: G05F20060101 ,  H02J3/16 ,  H02P20060101 ,  H02P7/36

CPC classification number: H02P23/26

Abstract: A synchronous motor field regulator system which regulates for a specific power factor within a predetermined line voltage band, providing that a minimum excitation requirement for the load on the synchronous motor is met. KVAR balance control is also provided for two synchronous motor regulated drives connected to the same line.

Abstract translation: 同步电动机场调节器系统，其对于在预定线电压带内的特定功率因数进行调节，只要满足同步电动机上的负载的最小激励要求即可。 对于连接到同一线路的两个同步电机调节驱动器，还提供了KVAR平衡控制。

公开(公告)号：US4425628A

公开(公告)日：1984-01-10

申请号：US267328

申请日：1981-05-26

Applicant: James F. Bedard ,  Scott E. Cutler ,  Charles W. Eichelberger ,  Edward B. Miller ,  Salvatore F. Nati, Jr.

Inventor： James F. Bedard ,  Scott E. Cutler ,  Charles W. Eichelberger ,  Edward B. Miller ,  Salvatore F. Nati, Jr.

IPC: H05B37/02 ,  G05B15/02 ,  G05F20060101 ,  G06F17/00 ,  G06F19/00 ,  H02B1/04 ,  H04Q9/00 ,  G06F15/20

CPC classification number: H05B37/0254

Abstract: A control module for controlling at least one variable-power-consuming load responsive to data input from local and/or remote locations, utilizes a controller microcomputer having an output setting the gain of a variable gain amplifier. The variable gain amplifier operates on a substantially-constant output of an oscillator to provide, on a cycle-by-cycle or long-term basis, a periodic waveform of controlled amplitude to the at least one load. The amplitude of the waveform sets the energy consumption/output of the load. Another data bus facilitates connection of local control means to a control module interface providing local control information to the controller microcomputer, while a third data bus is dedicated to communication with a remote central controller, if used. The control module includes circuitry for allowing a unique local address to be set for a particular control module, to which unique address the control module responds when a plurality of such control modules are connected in parallel to a central controller. A fourth data bus connects local sensors, such a photocells, thermistors and the like, through analog-to-digital conversion circuitry to the controller microcomputer, to facilitate control of the local loads responsive to local ambient conditions. The maximum level of the load(s) connected to a control module may be programmably established such that this maximum level can not be exceeded by local and/or remote commands, until the maximum level is altered.

Abstract translation: 响应于从本地和/或远程位置输入的数据来控制至少一个可变功耗负载的控制模块利用具有设定可变增益放大器的增益的输出的控制器微计算机。 可变增益放大器在振荡器的基本上恒定的输出上工作，以逐周期或长期的基础向至少一个负载提供受控幅度的周期波形。 波形的幅度设定负载的能量消耗/输出。 另一数据总线便于将本地控制装置连接到向控制器微计算机提供本地控制信息的控制模块接口，而第三数据总线专用于与远程中央控制器的通信（如果使用的话）。 控制模块包括用于允许为特定控制模块设置唯一本地地址的电路，当多个这样的控制模块并行连接到中央控制器时，控制模块响应的唯一地址。 第四数据总线通过模数转换电路将本地传感器（例如光电管，热敏电阻等）连接到控制器微计算机，以便响应于局部环境条件来控制局部负载。 连接到控制模块的负载的最大电平可以可编程地建立，使得在最大电平改变之前，本地和/或远程命令不能超过该最大电平。

公开(公告)号：US3718847A

公开(公告)日：1973-02-27

申请号：US3718847D

申请日：1971-05-28

Applicant: GEN ELECTRIC

Inventor： GRAF C ,  SKOGSHOLM E ,  VOLKMANN W

IPC: G05B20060101 ,  G05D13/62 ,  G05F20060101 ,  H02P27/06 ,  H02P5/40

CPC classification number: H02P27/06 ,  H02P27/047

Abstract: D R A W I N G
THE CURRENT AND VOLTAGE TO EACH PHASE OF AN A-C MOTOR ARE SENSED AND UTILIZED TO PRODUCE A PHASE CONTROL SIGNAL HAVING AN AVERAGE VALUE PORTIONAL TO THE AVERAGE MAGNITUDE OF THE IN-PHASE CURRENT WITHIN THAT PHASE. THE PHASE CONTROL SIGNALS ARE SUMMED TO PRODUCE A COMPOSITE SIGNAL INDICATIVE OF CERTAIN MOTOR OPERATING CHARACTERISTICS, INCLUDING SLIP AND TORQUE, THE COMPOSITE CONTROL SIGNAL BEING SUPPLIED TO THE CONTROL OF AN INVERTER WHICH PRODUCES VARIABLE FREQUENCY ALTERNATING CURRENT ELECTRIC POWER FOR DRIVING THE A-C MOTOR. IN RESPONSE TO VARIATIONS IN THE COMPOSITE CONTROL SIGNAL, THE FUNDAMENTAL FREQUENCY AND THE AVERAGE VOLTAGE OF THE ALTERNATING CURRENT POWER ARE ADJUSTED BY THE CONTROL.

公开(公告)号：US3324382A

公开(公告)日：1967-06-06

申请号：US29360063

申请日：1963-07-09

Applicant: SAMES SA DE MACHINES ELECTROST

Inventor： FELICI NOEL J

IPC: G05F20060101

CPC classification number: G05F1/46 ,  H02N1/10

公开(公告)号：US20050251682A1

公开(公告)日：2005-11-10

申请号：US10841442

申请日：2004-05-10

Applicant: Michael Collins ,  Edna Cahanovitc ,  Yanki Margalit ,  Dany Margalit

Inventor： Michael Collins ,  Edna Cahanovitc ,  Yanki Margalit ,  Dany Margalit

IPC: G05F20060101 ,  G06F21/00 ,  H04L9/00 ,  H04L9/32

CPC classification number: H04L9/3236 ,  G06F21/64 ,  H04L9/3247 ,  H04L2209/56

Abstract: The present invention is directed to a method for indicating the integrity of a collection of digital objects, such as a software package, an email with attachments, etc.) The method comprising the steps of: Sealing the collection of digital objects by gathering the hash values of the digital objects into a binding file and digitally signing the binding file (the binding file may further comprise information about the relations between the objects); and Indicating the integrity of a sealed collection of digital objects by validating the integrity of its binding file via its digital signature; and validating the integrity of each object by the correspondence of its hash value with the corresponding hash value stored within the validated binding file.

Abstract translation: 本发明涉及一种用于指示诸如软件包，具有附件的电子邮件等数字对象的集合的完整性的方法。该方法包括以下步骤：通过收集散列来密封数字对象的集合 将数字对象的值转换成绑定文件并对绑定文件进行数字签名（绑定文件还可以包括关于对象之间的关系的信息）; 并通过其数字签名验证其绑定文件的完整性来指示密封的数字对象集合的完整性; 并通过其散列值与存储在经过验证的绑定文件中的相应哈希值的对应关系来验证每个对象的完整性。

公开(公告)号：US20050057544A1

公开(公告)日：2005-03-17

申请号：US10915929

申请日：2004-08-11

Applicant: Thomas Hamilton

Inventor： Thomas Hamilton

IPC: G02F1/1335 ,  G05F20060101 ,  G09G5/00 ,  H01J40/14

CPC classification number: G01J1/26 ,  A61F9/061 ,  G01J1/44 ,  G01J2001/0276 ,  G02F1/13318 ,  G02F2001/13324

Abstract: An auto darkening eye protection device comprising a shutter assembly and a control circuit. The shutter assembly is adjustable between a light state and a dark state. The control circuit comprises a sensing circuit, a weld detect circuit, a positive voltage generator, and a negative voltage generator. The sensing circuit senses incident light and provides an output indicative of the incident light. The weld detect circuit receives the output of the sensing circuit, and enables a dark state drive signal to be delivered to the shutter assembly. The positive and negative voltage generators output the dark state drive signal to the shutter assembly to switch the shutter assembly from the light state to the dark state upon enablement by the weld detect circuit. The dark state drive signal includes a high voltage pulse followed by a stable AC waveform. The high voltage pulse is formed by a positive voltage signal and a negative voltage signal.

Abstract translation: 一种自动变暗眼保护装置，包括快门组件和控制电路。 快门组件可在光状态和黑暗状态之间调节。 控制电路包括感测电路，焊接检测电路，正电压发生器和负电压发生器。 感测电路感测入射光并提供指示入射光的输出。 焊接检测电路接收感测电路的输出，并且能够将暗状态驱动信号传送到快门组件。 正电压和负电压发生器将暗状态驱动信号输出到快门组件，以在通过焊接检测电路启用时将快门组件从光状态切换到暗状态。 暗态驱动信号包括高电压脉冲，后跟稳定的交流波形。 高压脉冲由正电压信号和负电压信号形成。

公开(公告)号：US3686552A

公开(公告)日：1972-08-22

申请号：US3686552D

申请日：1971-07-30

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： PETERSON ROBERT S

IPC: G05F20060101 ,  H02J3/16 ,  H02P20060101 ,  H02P9/12 ,  H02P7/36

CPC classification number: H02P23/26

Abstract: A synchronous motor field regulator system which regulates for a specific power factor within a predetermined line voltage band, providing that a minimum excitation requirement for the load on the synchronous motor is met, and incorporating means for varying the saturation level of a line voltage controller in the regulator as a function of the average synchronous motor field current whereby the synchronous motor average field current on a duty cycle basis will not exceed its rated value. This prevents the line voltage controller in a synchronous motor field regulator from calling for an average synchronous field current greater than the rated synchronous motor field current and protects the synchronous motor and its field exciter against a thermal overload condition when the synchronous motor voltage has dipped for a long period of time and the line voltage regulator is trying to maintain nominal line voltage.

Abstract translation: 一种同步电动机励磁调节器系统，其对于在预定的线路电压带内的特定功率因数进行调节，从而满足对同步电动机上的负载的最小激励要求，并且包括用于改变线路电压控制器的饱和电平的装置 调节器作为平均同步电动机励磁电流的函数，由此基于占空比的同步电动机平均励磁电流不会超过其额定值。 这样可以防止同步电动机励磁调压器中的线路电压控制器要求大于额定同步电动机励磁电流的平均同步励磁电流，并且当同步电动机电压下降时，保护同步电动机及其励磁器免受热过载状态的影响 很长一段时间，线路稳压器试图维持标称线路电压。