Patents Examined by Lucy M. Thomas
  • Patent number: 11223196
    Abstract: A fault-preventing circuit recloser includes a ballast impedance, power line current and voltage monitors, and controller that operates the switch based on measurements obtained from the current and voltage monitors. The controller aborts the closing (i.e., reopens the switch) when the controller detects that the switch has closed into faulted line. The circuit recloser temporarily introduces the ballast impedance into the circuit during the closing operation to limit the current spike and voltage dip caused by initially closing the switch into the faulted line. The circuit recloser also temporarily introduces the ballast impedance into the circuit during the opening operation to limit the voltage transient that can be caused by initially opening a load-carrying power line. Different ballast resistor insertion times are applied depending on the type of recloser operation (opening or closing) and whether a fault is detected.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: January 11, 2022
    Assignee: Southern States, LLC
    Inventors: Joseph R Rostron, Jiyuan Fan, Teng Hu
  • Patent number: 11217985
    Abstract: A low-voltage circuit breaker device includes: at least one line conductor path from a line conductor supply connection of the low-voltage circuit breaker device to a line conductor load connection of the low-voltage circuit breaker device; a neutral conductor path from a neutral conductor connection of the low-voltage circuit breaker device to a neutral conductor load connection of the low-voltage circuit breaker device; a mechanical bypass switch arranged in the line conductor path; a first semiconductor circuit assembly of the low-voltage circuit breaker device being connected in parallel with the mechanical bypass switch; an electronic control unit for actuating the mechanical bypass switch and the first semiconductor circuit assembly; an ammeter assembly arranged in the line conductor path, which ammeter assembly is connected to the electronic control unit; and a second semiconductor circuit assembly arranged in the line conductor path.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: January 4, 2022
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventor: Kenan Askan
  • Patent number: 11211786
    Abstract: A communications and processing module is provided. The communications and processing module is electrically coupleable to a circuit breaker to provide the circuit breaker with additional capabilities. The communications and processing module includes a housing, at least one electrical contact positioned in the housing, an output lug positioned in the housing, wherein an electrical path is defined between the at least one electrical contact and the output lug, at least one sensor positioned in the housing and operable to sense at least one operating condition of the circuit breaker, and at least one communications interface positioned in the housing and communicatively coupled to the at least one sensor, the communications interface operable to receive data from the at least one sensor that is indicative of the at least one sensed operating condition to facilitate exporting the received data to a remote computing device.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: December 28, 2021
    Assignee: ABB Schweiz AG
    Inventors: Leonardo Dorea Mascarenhas, Tapas Ranjan Rout, Rafael Enrique Higuera
  • Patent number: 11210398
    Abstract: An activity sensing circuit includes an ammeter circuit configured to monitor a supply current drawn specifically by a webcam. A hardware trigger circuit receives a webcam supply current monitoring signal from the ammeter circuit, and detects when the webcam supply current monitoring signal indicates the supply current drawn specifically by the webcam exceeds a first threshold supply current level. In response to detection of the supply current exceeding the first threshold supply current level, the trigger circuit notifies an indicator circuit to provide a user-perceptible indication. The indicator circuit is immune to control by a processor of an information handling system of which it is part.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: December 28, 2021
    Assignee: Dell Products L.P.
    Inventors: Sathish Bikumala, Jace W. Files
  • Patent number: 11201460
    Abstract: A power source switch control device includes a detection circuit, a detection circuit, a detection circuit, and a detection circuit. The detection circuit detects forward voltage of a body diode of a FET, and the detection circuit detects forward voltage of a body diode of a FET. The detection circuit detects forward voltage of a body diode of a FET, and the detection circuit detects forward voltage of a body diode of a FET. A controller determines whether a defect of a power circuit has occurred based on results of the detection by the detection circuits to. Accordingly, the power source switch control device can appropriately detect defect of a switching element of a power source.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 14, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Eiichiro Oishi, Mitsuaki Morimoto
  • Patent number: 11190005
    Abstract: The present disclosure relates to a reverse grounding protection circuit and a ground fault circuit interrupter. The reverse grounding protection circuit may include a power supply circuit, a leakage signal amplifying circuit, a leakage grounding detection circuit, a power supply indicator circuit, a manual detection circuit, a tripping mechanism control circuit, a reverse connection detection and execution circuit, and a power-on driving signal generating circuit. A ground fault circuit interrupter may comprise an interrupter body and a reverse grounding protection circuit in the interrupter body. The practice of the present disclosure may avoid the risk from reverse connection of the ground fault circuit interrupter and output of power of reverse connection, and thus improve safety of the ground fault circuit interrupter.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: November 30, 2021
    Inventor: Ze Chen
  • Patent number: 11181567
    Abstract: Apparatus detects an electrical fault in a primary tap having a plurality of distribution transformers each provided in a distribution circuit along a length of the primary tap, on a power distribution system. The apparatus includes a voltage monitor provided at each of the distribution circuits for monitoring a voltage in a corresponding distribution circuit, a controller in communication with each of the voltage monitor for receiving the voltage monitored and transmitted by the voltage monitors, and a fuse isolator configured to electrically connect the primary tap to a high voltage on the power distribution system and electrically disconnect the primary tap from the high voltage on power distribution system when activate.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: November 23, 2021
    Assignee: Electrical Materials Company
    Inventors: Timothy M O'Regan, Timothy J O'Regan
  • Patent number: 11171479
    Abstract: A superconducting magnet device including a superconducting coil formed of a high-temperature superconducting wire, a power supply which supplies current to the superconducting coil, and a protector capable of forming a short-circuit path which short-circuits both ends of the superconducting coil to each other is installed. Current is made to flow from the power supply to the superconducting coil in a superconducting state, and the superconducting coil thereby generates a magnetic field. After the magnetic field is generated, when an abnormality of the superconducting magnet device is detected, or when the power supply and the superconducting coil are disconnected from each other, the short-circuit path is formed by the protector.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: November 9, 2021
    Assignees: RIKEN, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Masato Takahashi, Hideaki Maeda, Kenjiro Hashi, Gen Nishijima, Shinji Matsumoto, Takashi Noguchi, Tadashi Shimizu
  • Patent number: 11171639
    Abstract: A drive device adapted to drive a semiconductor power device, wherein the drive device comprises a drive circuit comprising a first terminal adapted for connection to a first terminal of the power device, a gate terminal adapted to provide a driving signal for a gate terminal of the power device, a sensor for detecting overvoltage conditions at the first terminal of the power device, and wherein the drive circuit is adapted to modify the driving signal when the sensor detects an indication of an overvoltage condition, and wherein the drive circuit including the sensor is integrated onto a single substrate.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 9, 2021
    Inventors: Jinsheng Song, Remigiusz Viktor Boguszewicz
  • Patent number: 11152775
    Abstract: The invention includes an output circuit that outputs an operation signal to a direct current breaker that interrupts a direct current main circuit, and a processor that samples, at predetermined time intervals, digital data wherein a value detected by a direct current transformer that detects a current of the direct current main circuit is measured as an input current, calculates a computed measurement value to be output to a display circuit, and outputs control information for executing a protection process using measurement value sampling data obtained by the sampling to the output circuit, and executes a protection process of the direct current main circuit at every sampling.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: October 19, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mamoru Togami, Toshihiko Miyauchi
  • Patent number: 11145965
    Abstract: The present apparatus, system and method solves the problems of the prior art by enabling substantial dissipation of an electrical energy surge coming from communications antenna which has been struck by lightning. The apparatus is for mounting to an exterior of a building at or near communications antenna also located at the exterior of the building. The apparatus is connected with incoming coaxial cables extending from exterior mounted antenna and with outgoing coaxial cables which extend from the apparatus to communications equipment housed within a communications center. The lighting strike surge travels from antenna, along the incoming coaxial cable and is redirected within the apparatus by polyphasers which trip at capacity to redirect the surge to three separate grounding bars and prevent the surge from continuing along outgoing coaxial cables leading to communications equipment thus safely dissipating surge and shielding communications equipment.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: October 12, 2021
    Assignee: Red Cloud Inc.
    Inventor: William E Rogers
  • Patent number: 11137014
    Abstract: A conductive fastening system, a fastened assembly, and a method of fastening an assembly composed of layers of carbon fiber reinforced plastic (“CFRP”) and/or metallic material includes fasteners with an electrically conductive coating and electrically conductive gap filler materials between the fasteners and sidewalls of holes formed through the layers of the assembly. The sidewalls of the holes are coated with the electrically conductive gap filler material by abrading, injection or spraying. The fasteners with the electrically conductive coating are inserted through the holes. The conductive coating on the fasteners and electrically conductive gap filler material work together to enhance electrical conductivity between the fastener and assembly. The conductive coating also acts as a lubricant to reduce the amount of force required to insert the fastener into the hole thereby reducing damage to the assembly.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: October 5, 2021
    Assignee: The Boeing Company
    Inventors: Darrin M. Hansen, Blake A. Simpson, Shahriar Khosravani
  • Patent number: 11128289
    Abstract: A driver circuit having an overcurrent protection function is configured to: output, when a current value of an output transistor exceeds a threshold value, a shut-off signal for turning OFF the output transistor; output an interval signal for turning ON the output transistor after a predetermined time interval has elapsed from a timing at which the shut-off signal is output when the control signal is in a control state for turning ON the output transistor; and turn OFF the output transistor when any one of the interval signal and the shut-off signal is in a state for turning OFF the output transistor.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 21, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Yuji Yamanaka
  • Patent number: 11128119
    Abstract: A power distribution system adapted for high current fault management during a fault event utilizes reclosing switches configured for a quick-slow-quick reclosing sequence in which the reclosing switch initially responds to the fault condition by tripping open, and then after a delay recloses for a first duration of time (slow) prior to tripping open. After another delay, the reclosing switch recloses for a second duration of time (quick) that is less than the first duration of time prior to tripping open for an indefinite interval. When installed in new segments or retrofitted in place of a fuse, reclosing switches configured with quick-slow-quick reclose timing allows for reduction of downstream customer outages, reduced I2T exposure for elements upstream of a fault event and a reduction in the duration of voltage sags experienced by customers during fault events while allowing for improved fault management configurations of the power distribution system.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: September 21, 2021
    Assignee: FLORIDA POWER & LIGHT COMPANY
    Inventors: David L. Smith, Michael J. Putt, Benny Naranjo
  • Patent number: 11128213
    Abstract: An inverter circuit of an embodiment includes a plurality of semiconductor switching elements constituting a bridge circuit; a transformer connected to the output end of the bridge circuit; an electric current detector that detects whether an electric current carried through at least one of the switching elements exceeds a predetermined value; a pulse generator circuit that transmits a periodic pulse signal; a flip-flop circuit connected to the detector and the pulse generator circuit; a field effect transistor (FET) turned on or off by a signal from the flip-flop circuit; and a gate signal generator circuit connected to the FET and the bridge circuit. The flip-flop circuit inverts an output signal by a detection signal of the detector and interrupts the output of the bridge circuit. The gate signal generator circuit switches the switching element at the diagonal position of the bridge circuit based on a signal from the FET.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: September 21, 2021
    Assignees: T & S CORPORATION, FUJIKIN INCORPORATED
    Inventors: Toshiro Sakabe, Toyohiko Aoki, Kiyomi Watanabe, Shin Yokoshima
  • Patent number: 11128118
    Abstract: A solid state power controller includes at least one solid state switching device connected to at least one load to be supplied with power from a power feed line and configured to selectively connect the respective load to the power feed line or to disconnect the respective load from the power feed line; at least one SSPC control circuit configured to supply a control voltage to a control terminal of the solid state switching device; and a discrete output circuit electrically that supplies a discrete output signal indicative of the state of the control terminal of the solid state switching device and the discrete output circuit detects an overcurrent in a circuit connected to the discrete output terminal and to limit an output current and/or interrupt supply of the discrete output signal in case an overcurrent is detected.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: September 21, 2021
    Assignee: HS ELEKTRONIK SYSTEME GMBH
    Inventors: Thomas Rauwolf, Matthias Maier
  • Patent number: 11121538
    Abstract: An electronic circuit arrangement may include first and second electric connections connectable to first and second electronic devices, respectively. A first electric conduction path may connect the first and second electric connections, and a second electric conduction path may connect a tee point provided in the first electric conduction path to an electric ground connection. First and second switching elements may be provided in the first and second electric conduction paths, respectively, between the tee point and the respective electric connection. Each switching element may switch between an open state, in which the switching element may interrupt the respective electric conduction path, and a closed state. In response to connecting the second electronic device to the second electronic connection, the second switching element may switch to the open state, and the first switching element to the closed state only after the second switching element is already in the open state.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 14, 2021
    Inventors: Norbert Sack, Axel Sailer
  • Patent number: 11114836
    Abstract: The present invention relates to a semiconductor device and it is an object of the present invention to provide a semiconductor device that makes it easy to change a specification on driving of a power semiconductor element or control of a protection operation thereof. The semiconductor device includes a power semiconductor element, a main electrode terminal of the power semiconductor element, a sensor section that emits a signal corresponding to a physical state of the power semiconductor element, a sensor signal terminal connected to the sensor section, a drive terminal that supplies power to drive the power semiconductor element and a case that accommodates the power semiconductor element, the main electrode terminal, the sensor section, the sensor signal terminal and the drive terminal, and the sensor signal terminal and the drive terminal are provided so as to be connectable from outside the case.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: September 7, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Rei Yoneyama, Fumitaka Tametani, Manabu Matsumoto, Haruhiko Takemoto, Hiroshi Yoshida, Motonobu Joko
  • Patent number: 11088005
    Abstract: A substrate support assembly includes a ceramic puck and a thermally conductive base having an upper surface that is bonded to the ceramic puck. The thermally conductive base includes a plurality of thermal zones and a thermally managed material embedded in the thermally conductive base at the upper surface of the thermally conductive base in one or more of the plurality of thermal zones. The thermally managed material has different thermal conductive properties along a first direction and a second direction. The thermally conductive base further includes a plurality of thermal isolators that extend from the upper surface of the thermally conductive base towards a lower surface of the thermally conductive base between two or more of the plurality of thermal zones without contacting the lower surface of the thermally conductive base. Each of the plurality of thermal isolators provides a degree of thermal isolation.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: August 10, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Vijay D. Parkhe, Konstantin Makhratchev, Jason Della Rosa, Hamid Noobakhsh, Brad L. Mays, Douglas A. Buchberger, Jr.
  • Patent number: 11088527
    Abstract: An arc fault identification unit for an electrical three-phase alternating current circuit with three phase conductors and a neutral conductor. The identification unit includes voltage sensors to periodically determine phase/neutral conductor voltage values and phase/phase voltage values current sensors to periodically determine phase conductor current variables which are used to determine the phase conductor current value and a value for the change in the electrical current over time per phase, and an evaluation unit connected to the voltage and current sensors. A current root mean square is compared with a current threshold value in each case and an excess current signal is emitted if the threshold value is exceeded; arc voltages are calculated and are compared with threshold values, with the result that arc fault identification signals are output.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: August 10, 2021
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Joerg Meyer, Peter Schegner, Karsten Wenzlaff, Stefan Widmann