Patents Examined by Dharti H. Patel
  • Patent number: 10775455
    Abstract: In a superconducting magnet arrangement, such as used in a magnetic resonance system, and a power management method therefor, an enhanced economic power mode (EPM) is implemented wherein the compressor operation is controlled by magnet pressure, temperature and time, so as to ensure the readiness of the magnet system for a scanning operation upon exiting the enhanced EPM. A processor implementing the enhanced EPM looks for a signal that indicates that the magnet system is operational and, in the absence of that signal for a predetermined period of time, enters into EPM. Exit from EPM occurs if certain conditions are violated, but then re-entry into EPM is attempted (re-starting EPM), thereby making the magnet system ready for operation again, if and when a patient scan is to be implemented.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 15, 2020
    Assignees: Siemens Healthcare GmbH, Siemens Healthcare Limited
    Inventors: Felix Michael Koeber, Rolf Heinrichs, Adrian Bampton, Philip Alan Charles Walton, Dhavalkumar Patel, John Anthony Robert Teah
  • Patent number: 10777947
    Abstract: A universal serial bus (USB) cable including a power conductor configured to transmit power between a first device and a second device, a configuration channel (CC) conductor configured to allow the first device and the second device to determine whether a connection has been established via the USB cable, and a first positive temperature coefficient (PTC) element coupled to the CC conductor and configured to mitigate current flowing through the CC conductor if a temperature of the first PTC element rises above a predefined trip temperature.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: September 15, 2020
    Assignee: Littelfuse, Inc.
    Inventors: Boris Golubovic, Kunghao Yu
  • Patent number: 10756721
    Abstract: A method of protecting a gate driver circuit includes receiving an input signal to energize a gate driver output of the gate driver circuit, determining that an abnormal operating condition exists at the gate driver output, continuously energizing the gate driver output for a time period, and entering a pulsed mode of operation for energizing the gate driver output after the time period has lapsed.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: August 25, 2020
    Assignee: Infineon Technologies AG
    Inventor: Tommaso Bacigalupo
  • Patent number: 10756571
    Abstract: Providing a power system and a method for stabilizing a system, in which the number of generators to be disconnected is reduced to narrow an area influenced by a grid fault in the case where the reliability of the state estimation calculation is judged to be high.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: August 25, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Tomomichi Ito, Akira Kikuchi, Masahiro Watanabe
  • Patent number: 10756537
    Abstract: A short circuit fault current limiter includes a circuit breaker, a transfer current limiting unit and a current detection unit. The current detection unit is connected to the circuit breaker in series, and the circuit breaker and the transfer current limiting unit are connected in parallel into the power system line. An output terminal of the current detection unit is connected to a control terminal of the transfer current limiting unit. The current detection unit is configured to detect a fault current flowing through a branch of the circuit breaker under a short circuit fault operating condition and trigger the corresponding trigger switch of the transfer current limiting unit to be switched on, so that the circuit breaker is disconnected and the secondary side winding of the coupling reactor is connected to the system line in series, which is capable of rapidly limiting the amplitude of the fault current and reducing impact of the fault current on the system.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: August 25, 2020
    Assignees: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, GUANGZHOU POWER SUPPLY CO., LTD.
    Inventors: Zhao Yuan, Junxiang Liu, Fating Yuan, Lixue Chen, Junjia He, Yuan Pan, Kaijian Wu, Yong Wang, Wenxiong Mo, Haibo Su
  • Patent number: 10756530
    Abstract: The present overcurrent detection circuit includes: a comparative voltage generation unit that generates a comparative voltage that changes in accordance with a power supply voltage; and a comparison unit that generates a comparison result signal by comparing a drain-source voltage of a switching transistor with the comparative voltage.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 25, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toshikazu Kuwano
  • Patent number: 10746826
    Abstract: A magnetic resonance system may include a magnetic resonance magnet and a storage container configured to accommodate the magnetic resonance magnet. The storage container may also contain an endothermic liquid. The magnetic resonance system may further include a ramping-down device configured to trigger releasing electric energy by the magnetic resonance magnet. The first ramping-down device may include an electric energy consumption device configured to consume at least a portion of the released electric energy by the magnetic resonance magnet.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 18, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Jianfeng Liu
  • Patent number: 10749338
    Abstract: Techniques for electrostatic discharge (ESD) protection that apply a negative voltage to an MOS power clamp during an ESD event. The power clamp may be initially turned on by a short positive pulse to the gate to trigger the power clamp to switch into a parasitic bipolar mode, to quickly shunt the electrical energy from the ESD event around other circuitry. However, repeatedly triggering an NMOS power clamp into bipolar mode may cause the power clamp performance to degrade. For example, the NMOS power clamp may develop an increase in leakage current. The techniques of this disclosure apply a negative voltage to the gate of the power clamp which may reduce the holding and triggering voltage during the ESD event as well as improve leakage degradation of the power clamp after repeated ESD events.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 18, 2020
    Assignee: Infineon Technologies AG
    Inventors: Stefan Seidl, David Alvarez
  • Patent number: 10742023
    Abstract: An object is to provide an air conditioner that can prevent malfunctions due to an inrush current, where the air conditioner includes an inrush-current prevention resistor that prevents inflow of an inrush current from an AC power supply, a relay-a operation unit as a first relay that is serially connected to the inrush-current prevention resistor, a relay-b operation unit as a second relay that is connected in parallel to the inrush-current prevention resistor and the relay-a operation unit as the first relay, an indoor control unit that controls ON and OFF of the relay-a operation unit as the first relay, and an outdoor control unit that controls ON and OFF of the relay-b operation unit as the second relay. When power is being supplied from the AC power supply via the relay-a operation unit as the first relay, the outdoor control unit turns ON the relay-b operation unit as the second relay.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: August 11, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenta Sakurai, Hiroaki Suzuki
  • Patent number: 10734804
    Abstract: A power conversion device used in a DC power transmission system having a multipolar configuration includes: a self-excited AC/DC converter configured to convert electric power between an AC system and a main line; and a controller. The controller is configured to: receive an input of a current value between a neutral point and a DC terminal of the AC/DC converter; control an operation of the AC/DC converter; and control a switch to be opened and closed, the switch being provided between the DC terminal and the neutral point. When the current value is equal to or greater than a predetermined threshold value, the controller stops a plurality of cells and subsequently closes a bypass switch. When the current value is equal to or greater than a predetermined threshold value, the controller opens the switch.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: August 4, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Takuo Aramaki
  • Patent number: 10736036
    Abstract: HVAC components having improved efficiency are described. In one embodiment, excessive sleep current draw in a battery-powered device having a microcontroller is detected by measuring a voltage drop across a MOSFET device coupled in a forward-conducting orientation in series between the battery and the microcontroller, causing a transistor to conduct when the voltage drop exceeds a predetermined threshold to generate a first trigger signal, integrating the first trigger signal to generate a second trigger signal, and generating an interrupt to the microcontroller. In another embodiment, a battery-saving method of operating an HVAC component includes maintaining the HVAC device in the sleep mode, receiving a user input to wake the device, transmitting a data request and returning the HVAC component to the sleep mode, waking up the HVAC device to poll an adjacent network node storing a cached response, displaying the response, and returning the HVAC device to sleep.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: August 4, 2020
    Assignee: Trane International Inc.
    Inventors: Christopher C. VanderKoy, Joel C. VanderZee
  • Patent number: 10727662
    Abstract: A dropout recloser is capable of in accordance with its operating programming after a predetermined number of fault interrupting operations, e.g., 1, 2, 3 or more but typically 3, to drop out of a cutout and hang freely in a hinge contact of the cutout providing sectionalization with an observable visible gap. The recloser includes fault interrupting and reclosing components, a drop out mechanism and a controller. The drop out mechanism may include a bi-stable actuator to affect fault interrupting operation and dropout operation. The device may include motion limiting structures. The recloser may have a number of operating modes or sequences.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: July 28, 2020
    Assignee: S&C Electric Company
    Inventors: Richard G. Smith, Yujian Zhou, Jorge Montante, Montengro Alejandro, Michael Ross
  • Patent number: 10711501
    Abstract: An active anti-flutter system is provided for a motor vehicle. That active anti-flutter system includes an electromagnet on a first component, a ferromagnetic target on a second component and a controller. The controller is configured to energize the electromagnet to generate a magnetic flux that attracts the ferromagnetic target toward the electromagnet thereby reducing vibration of one of the first component and the second component. A method of reducing flutter of a closure panel on a motor vehicle is also disclosed.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: July 14, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Shunmugam Baskar, Michael J. Gardynik, Venkatasamy Veluchamy, Christina Dung Nguyen
  • Patent number: 10709003
    Abstract: An electrostatic shock reduction system for a vehicle. At least one surface of the interior or exterior of the vehicle which a user touches includes a conductive material and forms a conductive surface. A discharge circuit is connected to the conductive surface. The discharge surface is configured to slowly discharge the user when the user contacts the conductive surface so as to prevent an electrostatic shock to the user or an object approached by the user.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 7, 2020
    Assignee: ContiTech USA, Inc.
    Inventors: Rodolfo Lopez Govea, Mario Alberto Recinos Silva, Cesar Alejandro Hernandez Navarro, Lesly Guzman Duran
  • Patent number: 10700512
    Abstract: A transmitting and receiving circuit that transmits and receives signals using coaxial cables includes an input/output terminal that delivers and receives signals, a first port, a second port, a switch, and a ceramic-based electro-static discharge protector. The first port transfers a transmitted signal in a first transmission frequency band width and a received signal in a first reception frequency band width. The second port transfers a transmitted signal in a second transmission frequency band width and a received signal in a second reception frequency band width. The switch connects a common port to one of the first port and the second port. The common port is connected to the input/output terminal on one end of the common port and to the switch on the other end. The electro-static discharge protector is connected between the common port and the ground potential.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: June 30, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takahiro Mori, Tadashi Washimori
  • Patent number: 10700509
    Abstract: A power switching device is provided. A first transmitting switch transmits an input voltage to an output node when the first transmitting switch is turned on. When the current passing through the first transmitting switch exceeds a predetermined value, a current limiting circuit turns off the first transmitting switch. When a short circuit occurs between the output node and a ground node, a short protection circuit turns off the first transmitting switch. The short protection circuit includes a first comparator and a first set circuit. The first comparator compares a voltage of the output node and a first reference voltage to generate a first comparison result to turn off the first transmitting switch. The first set circuit generates the first reference voltage according to the voltage of the output node. The first reference voltage is less than the voltage of the output node.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 30, 2020
    Assignee: NUVOTON TECHNOLOGY CORPORATION
    Inventor: Cheng-Tao Li
  • Patent number: 10699835
    Abstract: A bistable solenoid valve device for a fluid system includes a bistable solenoid valve and a detection device. The bistable solenoid valve has a permanent magnet yoke, an armature configured to be displaced between a first armature position for contact against a first core to form an air gap with a second core and a second armature position for contact against the second core to form an air gap with the first core. The bistable solenoid valve device further includes a detection device configured to evaluate and/or measure a first inductance of the first armature coil, and evaluate and/or measure a second inductance of the second armature coil without displacement of the armature, to compare the inductance of the first armature coil and the inductance of the second armature coil, and to output a state signal that indicates the armature position.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: June 30, 2020
    Assignee: WABCO EUROPE BVBA
    Inventors: Andreas Goers, Otmar Struwe, Andreas Teichmann
  • Patent number: 10699864
    Abstract: A method is provided for controlling an actuator comprising an electromagnet and a control device, the electromagnet including a coil and a moving part that moves between a first position and a second position, the control device including a power supply member configured to supply the coil with an electric current having a voltage and an amperage and a measurement member for measuring a value of a quantity from among the voltage and the amperage. The method includes acquiring samples of the measured value, of regulating, according to a proportional-integral-derivative algorithm, the electric current to around a setpoint value that is equal to a maintenance value capable of maintaining the moving part in the second position, of comparing each sample to a predetermined threshold and of detecting a movement of the moving part if a single sample is above or equal to the threshold.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: June 30, 2020
    Assignee: Schneider Electric Industries SAS
    Inventors: Vincent Geffroy, Julien Henri-Rousseau
  • Patent number: 10694615
    Abstract: Inter alia an apparatus is disclosed including at least two multi-layer insulation, MLI, blankets, each MLI blanket having a least one bonding point. Therein, a bonding point of a first MLI blanket of the at least two MLI blankets is electrically connected to a bonding point of a second MLI blanket of the at least two MLI blankets. The second MLI blanket further has a grounding point configured to be grounded. Further, a spacecraft comprising such an apparatus is disclosed. Moreover, a method including providing at least two MLI blankets and electrically connecting a bonding point of a first MLI blanket to a bonding point of a second MLI blanket is disclosed.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: June 23, 2020
    Assignee: Airbus Defence and Space GmbH
    Inventor: Mohammad Danish Khan
  • Patent number: 10691189
    Abstract: A power controller makes use of a line-voltage detection method to perform brown-out protection and brown-in mechanism. The power controller has a high-voltage node connected via a current-limiting resistor to a line voltage, and a high-voltage startup transistor connected to the high-voltage node. The input voltage at the high-voltage node is divided to provide a fraction result. An offset current flowing through the high-voltage startup transistor and the current-limiting resistor is provided in response to the fraction result. The offset current is stopped in response to the fraction result when the offset current flows through the high-voltage startup transistor and the current-limiting resistor.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: June 23, 2020
    Assignee: LEADTREND TECHNOLOGY CORPORATION
    Inventors: Wei Chuan Su, Meng Jen Tsai