Patents Examined by Dharti H. Patel
  • Patent number: 10694632
    Abstract: An electronic safety module with an electrical connection (3). The electrical connection (3) comprises a partial thread (10) that is an integral part of an electrically conductive component providing an electrical shielding.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: June 23, 2020
    Assignee: Euchner GmbH + Co. KG
    Inventor: Dominik Wilpert
  • Patent number: 10692749
    Abstract: An electrostatic clamp monitoring system has an electrostatic clamp configured to selectively electrostatically clamp a workpiece to a clamping surface associated therewith via one or more electrodes. A power supply is electrically coupled to the electrostatic clamp and configured to selectively supply a clamping voltage at a clamping frequency to the electrostatic clamp. A data acquisition system measures a current supplied to the one or more electrodes, and a controller integrates the measured current over time, therein determining a charge value associated a clamping force between the workpiece and electrostatic clamp. The controller is further configured to selectively vary one or more of the clamping voltage and clamping frequency based on the determined charge value, thereby maintaining a desired clamping force between the workpiece and electrostatic clamp.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 23, 2020
    Assignee: Axcelis Technologies, Inc.
    Inventors: Edward K. McIntyre, William P. Reynolds
  • Patent number: 10693290
    Abstract: An electronic temperature switch, comprises a measurement circuit that measures temperature and generates an temperature signal corresponding to the sensed temperature; an evaluator circuit that receives said temperature signal and compares said temperature signal to a lower threshold value and an upper threshold value, and generates an evaluation signal indicating when said temperature signal is between the lower temperature threshold value and an higher temperature threshold value; and a loading circuit that in response to the evaluator circuit, generates a first pre-set output signal indicating when the temperature signal is between the lower threshold value and the higher threshold value, and a second pre-set output signal when the temperature signal is not between the lower threshold value and the higher threshold value.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 23, 2020
    Assignee: HYDRA-ELECTRIC COMPANY
    Inventor: Robert Andrew Guziak
  • Patent number: 10677834
    Abstract: Distance protection of electric power delivery systems are disclosed herein where a fault within a zone of protection is detected using time-domain fault detection supervised by frequency-domain fault detection. The distance fault detection may be asserted when the real or imaginary parts of the time-domain operating and polarizing quantities are both positive or both negative and an angle between the frequency domain operating and polarizing quantities is within a predetermined range. Additional security may be provided using a level check, a sign consistency check, or a disturbance detector.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 9, 2020
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Bogdan Z. Kasztenny, Mangapathirao Venkata Mynam, Chadburn Troy Daniels
  • Patent number: 10680427
    Abstract: Systems devices and methods are disclosed for detecting DC arc faults in a high voltage vehicle electrical distribution system. An example vehicle includes a high voltage electronic system comprising a current sensor configured to capture current data and a processor. The processor is configured to generate filtered data by applying a filter to the current data, determine a Hurst exponent based on the filtered data, and responsive to determining a threshold change in the Hurst exponent, detect the presence of a DC arc in the high voltage electronic system.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: June 9, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Amin Emrani, Jin Wang, Zhuo Wei, Boxue Hu, Yafeng Wang, Yousef Abdullah
  • Patent number: 10680435
    Abstract: An enhanced ESD clamp is provided with a resistor connected between the body terminal and the source terminal of a MOSFET device. In one exemplary embodiment, the MOSFET device is a grounded-gate NMOS (ggNMOS) transistor device with the resistor (“body resistor”) connected externally to the MOSFET device. In another embodiment, the MOSFET device is a ggPMOS transistor device. In yet another embodiment, the body resistor is disposed within and connected internally to the MOSFET device. In any event, the resistance value of the body resistor determines the level to which the trigger voltage of the ESD clamp will be reduced when an ESD event occurs.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: June 9, 2020
    Assignee: Intersil Americas LLC
    Inventor: Abu T. Kabir
  • Patent number: 10680429
    Abstract: A battery protective circuit including a resistor connected to a switch between a battery and a load through which a first current flows, a first driver to supply the first current to the switch and the resistor, a negative temperature coefficient element having resistance that varies in response to heat of the resistor, a second driver to supply a second current to the negative temperature coefficient element, a short-circuit device to be mechanically deformed by a current, a mechanical switch including a plurality of terminals connected with the battery, the terminals electrically connected with each other by deformation of the short-circuit device, a fuse connected in series between the battery and the mechanical switch, a circuit-changing switch configured to supply the second current to the short-circuit device or to block supply thereof, and a controller to control operations of the first driver, the second driver, and the circuit-changing switch.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: June 9, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Dukjung Kim
  • Patent number: 10673223
    Abstract: An arc fault detection arrangement for a DC electric bus, the DC electric bus having one or more electric lines adapted to electrically connect a source section and a load section of an electric apparatus, the arc fault detection arrangement including an arc fault detector adapted to receive and process detection signals indicative of AC currents flowing along the electric lines.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 2, 2020
    Assignee: ABB Schweiz AG
    Inventors: Sauro Macerini, Mirco Mirra
  • Patent number: 10666039
    Abstract: A power stage in an electronic fuse circuit is driven by controller. The controller includes a first comparator set for output voltage control and a second comparator set for output current control. Each comparator set includes at least one comparator having a reference input, a feedback input, and one or more outputs. A driver circuit includes output terminals for driving the power stage. The driver circuit includes a switch that is selectively activated in response to outputs from the first and second comparator sets to clamp the voltage across the output terminals of the driver circuit. The clamp operation is made in response to feedback input to either of the first and second comparator sets having exceeded a certain reference.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 26, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Manuela La Rosa, Giovanni Sicurella
  • Patent number: 10663530
    Abstract: A test switch assembly electrically coupled with an electronic module. The electronic module is designed with intelligent sophisticated circuitry that facilitates the transmission and/or the detection of currents and/or voltages between a protective relay and current or voltage transformers. In one embodiment, the electronic test switch senses, detects, monitors, analyzes and/or stores electrical signals and outputs this information to standalone displays, computers. RTU, or similar devices, through wired or wireless connections. The electronic module also allows the test switch to accept electrical connectors such as RJ45, USB, RCA, and/or BNC, among others.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 26, 2020
    Assignee: ABB Schweiz AG
    Inventors: Malbin Jose Mendoza, Prerak N. Shah, Todd Alan Gentile, Douglas A. Voda, Harshavardhan M. Karandikar, Richard Lindo, Dennis F. Batovsky
  • Patent number: 10665373
    Abstract: The present application relates to a coil actuator for low and medium voltage applications, which comprise a electromagnet operatively associated with a movable plunger, a power & control unit electrically connected with the electromagnet and first and second input terminals (T1, T2) operatively connected with the power & control unit, wherein an input voltage (VIN) is applied between the first and second input terminals during the operation of the coil actuator. The power & control unit is adapted to provide subsequent launch pulses of drive current (IC) to the electromagnet, which are separated in time by at least a predetermined time interval (TI), in response to subsequent transitions of the input voltage (VIN) from values lower than the first threshold voltage (VTH1) to values higher than the first threshold voltage.
    Type: Grant
    Filed: March 12, 2017
    Date of Patent: May 26, 2020
    Assignee: ABB S.P.A.
    Inventors: Davide Pessina, Luca Lanzoni
  • Patent number: 10658830
    Abstract: The power system may include a main circuit arrangement having a power source, a load and a circuit breaker. The power system may additionally include an energy harvesting circuit arrangement connected to the main circuit arrangement. The energy harvesting circuit arrangement may include an operating switch and an energy harvester. The power system may also further include a trigger mechanism, which may be configured to, when detecting a current above a predetermined value in the main circuit arrangement, trigger the circuit breaker to switch from a closed mode to an open mode. The trigger mechanism may also be configured to trigger the operating switch to switch from an open mode to a closed mode for a predetermined duration, and back to the open mode after the predetermined duration, thereby storing electrical energy in the energy harvester.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 19, 2020
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Abhisek Ukil, Hoay Beng Gooi
  • Patent number: 10645993
    Abstract: A static electricity discharging shoe with conductive link to ground having a conductive insole contacting with a sole of a foot of a user, and a conductive outer sole contacting with a ground; and an electro-conductive insert, having an upper major and a lower minor base, the insert in electrical communication between the insole and the outer sole, the insert having a lateral geometry proportioned for complemental engagement within a mid-sole situated between the insole and the outer sole, a narrow middle portion of the insert secured within the mid-sole, the upper surface of the insert positioned opposite to the plantar metatarsal region of the sole of the foot proximally to the K-1 acupressure point when the foot abuts the insole, the upper surface of the insert defining a slightly raised pad, having orthopedic benefit in off-loading of metatarsal stresses on the foot in the area of the K-1 point.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: May 12, 2020
    Inventor: Melvyn Cheskin
  • Patent number: 10640895
    Abstract: An item such as a fabric-based item or other item may have one or more actuators. An actuator may have a conductive strand of material. A control circuit may supply a current to the conductive strand that induces a length change in the conductive strand due to ohmic heating and associated thermal expansion effects. The control circuit may be used to activate the actuator in response to user input that is supplied to an associated input device such as a switch, capacitive sensor, force sensor, light-based sensor, or other input component. The fabric-based item may include fabric such as woven fabric or knit fabric. Strands of conductive material may serve as signals paths for supplying current to conductive strands in actuators. Magnetic-field-based actuators may be formed by coiling conductive strands around tubular support structures such as piping in fabric-based items.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: John S. Camp, Robert L. Coish, Kyle J. Nekimken, John A. Porcella, Michael A. Damianakis
  • Patent number: 10644495
    Abstract: One example includes a relay device that is comprised of a galvanic isolation barrier, a protection control and power extractor, and an electronic switch. The galvanic isolation barrier is coupled to an input of the relay device and receives a switch control signal and outputs another switch control signal. The protection control and power extractor is coupled to an output of the galvanic isolation barrier. The protection control and power extractor extracts power from a power supply coupled to the relay device. The protection control and power extractor is responsive to the other switch control signal and generates a protection signal in response to a determination of an operating parameter of the relay device. The protection control and power extractor further outputs an electronic switch device signal based on the generated protection signal.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 5, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Barry J. Male, Miroslav Oljaca, David W. Stout, Ajinder Singh
  • Patent number: 10637229
    Abstract: An electronic fuse module for an electrical system of a vehicle includes a housing, an electronic fuse disposed at the housing, a local controller disposed at the housing, and a transceiver disposed at the housing. The electronic fuse module, when the electronic fuse module is in communication with an electronic control unit and a controlled device of the electrical system, communicates with the electronic control unit of the electrical system. The local controller is configured to locally control load limits and a reset policy of the electronic fuse. The local controller is configured to communicate with the electronic control unit via the transceiver to cooperate with a central rule for electrical loads within the electrical system. The local controller is configured to locally control (i) electrical load limits of the electronic fuse and (ii) a reset policy of the electronic fuse.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 28, 2020
    Assignee: MAGNA ELECTRONICS INC.
    Inventor: Joern Ihlenburg
  • Patent number: 10636728
    Abstract: A semiconductor device includes field-effect transistor having a gate, a drain, and a source. A first clamping circuit is connected between the drain and the gate. The first clamping circuit has a first clamp voltage that is lower than a source-to-drain breakdown voltage of the field-effect transistor. A first resistor in the device has a first end connected to a first node between the first clamping circuit and the gate. A second clamping circuit is connected between the drain and a second end of the first resistor. The second clamping circuit has a second clamp voltage is higher than the first clamp voltage and lower than the source-to-drain breakdown voltage.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 28, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji Kikuchi, Ryuta Arai
  • Patent number: 10637232
    Abstract: An internal electric circuit device that is connected to a connector terminal at the time of being short-circuited can be protected, but a load connected to the connector terminal has not been able to be protected. When a voltage of a cathode of a diode becomes a voltage equal to or more that an output voltage of a power source circuit by a short circuit of a positive terminal, an output voltage of an amplifier changes from the output voltage of the power source circuit to a voltage of a point connected to a negative power terminal of the OP amplifier. When the output voltage of the amplifier becomes 0 V, a voltage difference between the gate and the source of a switching element becomes equal to or more than a predetermined voltage. Therefore, the drain and the source of the switching element enter an open state, and the current flowing a negative terminal is blocked. Therefore, it is possible to protect a load from overcurrent.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 28, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Issei Toda, Satoru Shigeta
  • Patent number: 10630070
    Abstract: A device for overcurrent protection, the device may include a main transistor that is configured to supply, via an output node, a load current to a load; a current limiting resistor; a replica transistor that is configured to provide a replica current to the current limiting resistor; wherein the replica current is smaller than the load current, wherein a value of the replica current is responsive to a value of the load current; an amplifier; a current limiting transistor; a variable signal source that is configured to output a reference signal; wherein a value of the reference signal is based on a main transistor voltage; wherein the amplifier is configured to prevent the load current from exceeding a first load current threshold by biasing the main transistor and the replica transistor with a bias signal; wherein a value of the bias signal is responsive to the reference signal and to the replica current.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 21, 2020
    Inventors: Alexander Faingersh, Valentin Lerner, Erez Sarig, Raz Reshef
  • Patent number: 10627440
    Abstract: A method for detecting arcs in a DC circuit, having a detection conductor, which is routed at least along a conductor of the DC circuit, which carries an electric voltage and is to be monitored. In this connection, a voltage signal that refers to a potential of the DC circuit is coupled into the detection conductor at an incoupling point via a series resistor, the voltage signal is coupled out again at an outcoupling point of the detection conductor, the voltage signal before the series resistor is compared to the voltage signal at the outcoupling point, and a conclusion is drawn that an arc has occurred when the voltage signal at the outcoupling point deviates from the voltage signal before the series resistor by more than a predetermined amount. This invention also relates to a device for carrying out the method. The method and the device permit a quick, reliable detection of an arc in a DC circuit.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: April 21, 2020
    Inventor: Peter Herges