Patents Examined by Danny Nguyen
  • Patent number: 11328893
    Abstract: A plasma processing system has been disclosed. The plasma processing system includes an electrostatic chuck (ESC) and an edge ring assembly. The edge ring assembly has a conductive ring configured to generate an electric field to adjust the direction of ions.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 10, 2022
    Assignee: XIA TAI XIN SEMICONDUCTOR (QING DAO) LTD.
    Inventor: Deog-Ja Koo
  • Patent number: 11329474
    Abstract: A semiconductor device includes a power semiconductor switch; a logic circuit connected to an input terminal; an overheat detection circuit that outputs to the logic circuit an overheat detection signal when a temperature of the power semiconductor switch exceeds an overheat detection threshold; and an overcurrent detection circuit that monitors a current that flows through the power semiconductor switch and that outputs to the logic circuit and to the overheat detection circuit an overcurrent detection signal when the current that flows through the power semiconductor switch exceeds a prescribed threshold, wherein in the overheat detection circuit, the overheat detection threshold values is changed from a first threshold value to a second threshold value that is lower than the first threshold value when the overheat detection circuit receives the overcurrent detection signal from the overcurrent detection circuit.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: May 10, 2022
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Sho Nakagawa, Morio Iwamizu
  • Patent number: 11322933
    Abstract: A protection circuit, comprising: a transient suppression circuit, configured to suppress a transient voltage; and a short-circuit protection circuit connected between the transient suppression circuit and a ground terminal, wherein when the transient suppression circuit is shorted out and the transient voltage is a protection voltage, the short-circuit protection circuit disconnects a loop where the transient suppression circuit is located. The short-circuit protection circuit has a turned-on state and a turned-off state; the short-circuit protection circuit is in a turned-on state when the transient suppression circuit is shorted out and the transient voltage is greater than the protection voltage; and the short-circuit protection circuit is in a turned-off state when the transient suppression circuit is shorted out and the transient voltage is a protection voltage.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 3, 2022
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventor: Wenqin Zhao
  • Patent number: 11322932
    Abstract: A crowbar device has a first terminal and a second terminal, the terminals being connectible to a medium to high impedance AC voltage source including a trigger circuit configured to output a trigger signal responsive to exceeding a threshold voltage across at least one trigger element of the trigger circuit; a positive-side signaling circuit and a negative-side signaling circuit configured to output a positive or a negative clamping signal, respectively, according to a positive-voltage or a negative-voltage signal, respectively, input from the trigger circuit; and a positive-side overvoltage clamping circuit and a negative-side overvoltage clamping circuit configured to control their respective semiconductor element to be in a conducting state, when the clamping signal from the corresponding signaling circuit is present, and configured to control their semiconductor element to be in a non-conducting state, when the corresponding clamping signal has not been present for a predetermined time period.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 3, 2022
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Hans Sjökvist, Sven Hünenmörder, Lukas Epprecht, Thomas Schuette, Martin Studer
  • Patent number: 11322925
    Abstract: An overcurrent detection device including: a current detection resistor that is connected in series to a main circuit and is configured to cause a potential difference at both ends according to a current flowing through the main circuit; a current detection circuit that includes a pair of connection portions and is configured to detect a potential difference between the pair of connection portions; a pair of voltage detection lines connecting the both ends of the current detection resistor to the pair of connection portions in the current detection circuit; and an erroneous detection prevention unit configured to prevent an increase in the potential difference between the pair of connection portions when at least any one of the pair of voltage detection lines has a connection failure.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 3, 2022
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventor: Masayuki Imura
  • Patent number: 11324091
    Abstract: A constant power backup power supply for LED lighting fixtures is disclosed. The power supply includes a storage battery that is charged while an AC power source is in an ON condition. When AC power transitions to an OFF condition, a capacitor bank charged by the battery supplies current to the primary side of a flyback converter operating in discontinuous conduction mode. The secondary side of the flyback converter supplies constant output power to the LED lighting fixture for an arbitrary output voltage within a predetermined range.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: May 3, 2022
    Assignee: ABL IP HOLDING LLC
    Inventor: Jie Wang
  • Patent number: 11315819
    Abstract: A method may include providing a substrate on a clamp, and directing radiation from an illumination source to the substrate when the substrate is disposed on the clamp during substrate processing, wherein the radiation is characterized by a radiation energy, wherein at least a portion of the radiation energy is equal to or greater than 2.5 eV.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: April 26, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Qin Chen, Julian G. Blake, Michael W. Osborne, Steven M. Anella, Jonathan D. Fischer
  • Patent number: 11299056
    Abstract: A vehicle includes charger contactors configured to selectively electrically couple terminals for connecting to a charger to corresponding terminals of a high-voltage bus. The vehicle includes a precharge contactor configured to selectively couple a terminal of a battery to the high-voltage bus through an impedance element. The vehicle includes a controller programmed to command the charger contactors to an open state for a drive cycle and command the precharge contactor to close at a start of the drive cycle and, responsive to a voltage across the terminals for connecting to the charger changing from being less than a first predetermined voltage immediately prior to the precharge contactor being closed to being greater than a second predetermined voltage at a completion of precharging, inhibit vehicle operation and disconnect the battery from the high-voltage bus.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: April 12, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Rui Wang, Aaron Walker, Yuan Zhang
  • Patent number: 11296501
    Abstract: As an example, a circuit is provided. The circuit includes an ESD (electrostatic discharge) clamping circuit with a control signal controlling clamping operations of the ESD clamping circuit. The circuit further includes a counter coupled to the control signal of the ESD clamping circuit. The counter produces a set of output signals responsive to the control signal. The circuit also includes a communications interface for coupling to the set of output signals of the counter. The communications interface also couples to communications circuitry external to the circuit.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: April 5, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Alan Erik Segervall, Ross Anthony Pimentel, Sumantra Seth
  • Patent number: 11289908
    Abstract: SOGI based apparatus and methods for providing balanced three phase output signals free of harmonics, DC components and imbalance present in the input signals, are disclosed. In addition, such apparatus and methods for providing corresponding output signals which are drift-free integrals of the input signals and which signals may enable the control of a power electronics inverter for improved and robust grid power injection and for motor control are disclosed.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: March 29, 2022
    Inventors: Georgios Orfanoudakis, Michael Yuratich
  • Patent number: 11289894
    Abstract: An overcurrent protection circuit includes a current control part configured to control conductance of a transistor so as to limit an output current flowing when the transistor is turned on to a predetermined upper limit or less, and a duty control part configured to forcibly turning on/off the transistor at a predetermined duty ratio when a temperature protection circuit detects a temperature abnormality in a state where the current control part limits the output current.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: March 29, 2022
    Assignee: Rohm Co., Ltd.
    Inventors: Toru Takuma, Shuntaro Takahashi, Naoki Takahashi
  • Patent number: 11289904
    Abstract: Various embodiments include an apparatus for limiting voltage for a DC voltage network, wherein overvoltages resulting from switching operations occur between a first supply potential level and a second supply potential level of the DC voltage network. The apparatus comprises at least two limiter cells connected in series between the first supply potential level and the second supply potential level. Each limiter cell comprises a controllable switching element, a discharge resistor, and a capacitor, across all of which a voltage applied between the first supply potential level and the second supply potential level is dropped. During operation of the apparatus, based at least in part on the voltage dropped across the respective capacitor of a particular limiter cell, the controllable switching element of the limiter cell is switched on or off.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: March 29, 2022
    Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
    Inventor: Jürgen Rupp
  • Patent number: 11289997
    Abstract: Aspects of the present disclosure involve a power module, which may include an inverter circuit employing semiconductor switch dies. In the presence of a failure of a die, which may include an arc from a short, a sensor produces a signal responsive to the failure. The signal initiates an indirect fuse, such as a pyrotechnic element, that opens conductors associated with the die. For example, the die or a related die may be wire bonded to terminals of the module. The indirect element may therefore open the bonds to the terminals to isolate the failed die and/or related dies.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 29, 2022
    Assignee: Apple Inc.
    Inventors: Paul M. White, Mark H. Sherwood, Stephen M. Spiteri, Zachary M. Rubin
  • Patent number: 11279305
    Abstract: The present disclosure provides a technology which can suppress separation of an airflow while a change in an appearance of a vehicle is suppressed. This exemplary embodiment is a vehicle including a self-discharging static eliminator which neutralizes and eliminates positive charges generated on a vehicle body by self-discharging which causes negative air ions to be generated and a transparent conductive material, and the self-discharging static eliminator and the transparent conductive material are electrically continuous.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 22, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junichi Sudo, Hiroyuki Arai, Koshi Yamada
  • Patent number: 11283255
    Abstract: A load center comprises a common instantaneous tripping unit that works on a principle of solid state switching. The load center further comprises a plurality of branches of branch circuit breakers each of which is coupled to the common instantaneous tripping unit via a corresponding high power connection and a corresponding low power connection such that the common instantaneous tripping unit feeds the plurality of branches at the same time. The common instantaneous tripping unit interrupts a short circuit fault in an interruption time which is significantly reduced thus reducing or eliminating chances for a personal injury during the short circuit fault.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: March 22, 2022
    Assignee: SIEMENS INDUSTRY, INC.
    Inventor: Guang Yang
  • Patent number: 11279465
    Abstract: A blade angle feedback ring assembly for an aircraft engine propeller having adjustable angle blades is provided. The feedback ring assembly comprises a feedback ring coupled to rotate with the propeller, the engine configured such that a first electrically-conductive path is defined between the propeller and the engine via the feedback ring, and an electric current conduction element provided between the propeller and the engine to define a second electrically-conductive path between the propeller and the engine in parallel to the first path, the second electrically-conductive path configured with a lower electrical resistance to conduction between the propeller and the engine than the first electrically-conductive path.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 22, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Joseph Ernesto Marone, Olivier Basse, Martin Dobson, Martin Clermont, Marc Lavoie
  • Patent number: 11277002
    Abstract: A circuit arrangement for a surge protection device for protecting multiple DC or AC power lines. The circuit arrangement includes a plurality of DC or AC power line inputs, a negative potential or neutral input, a ground potential input, a surge protection component having one or more surge elements, a rectification circuit including a plurality of diodes, and an alarm circuit for receiving a status output from the surge protection component.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: March 15, 2022
    Assignee: MERSEN USA EP Corp.
    Inventor: Roy Ball
  • Patent number: 11264890
    Abstract: A power supply protection circuit is a circuit that controls a protection switch provided on a power supply line connecting a direct current power supply and a load circuit. The power supply protection circuit includes: circuitry connected to the protection switch; and a controller that switches an operation state of the circuitry between a first state and a second state. The first state is an operation state in which driving of the protection switch is enabled when the protection switch is a first semiconductor switch having a control terminal connected to a semiconductor layer of a first conductivity type. The second state is an operation state in which driving of the protection switch is enabled when the protection switch is a second semiconductor switch having a control terminal connected to a semiconductor layer of a second conductivity type that is different from the semiconductor layer of a first conductivity type.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: March 1, 2022
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Takuya Ishii, Tetsuya Mihashi, Ginga Katase, Takashi Ryu
  • Patent number: 11264795
    Abstract: An electronic circuit breaker contains a first semiconductor switch which is switched into a current path between a voltage input and a load output and contains a controller which is connected to the control input of the first semiconductor switch. The first semiconductor switch is actuated depending on an actual value of the load current, the actual value is supplied to the controller, and the controller is configured to limit the current of the first semiconductor switch and disconnect same.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: March 1, 2022
    Assignee: Ellenberger & Poensgen GmbH
    Inventor: Diego Fernando Asanza Maldonado
  • Patent number: 11260987
    Abstract: A method for conditioning to reduce lightning strike effects is provided herein. The method includes positioning a plurality of tabs on a component. The plurality of tabs are electrically conductive. The component includes at least one of a composite material and a metal material having at least one joint. The method includes positioning the component on a support that is electrically insulated, and connecting a plurality of wires between an initial set of the plurality of tabs and a pulse generator. The pulse generator is configured to generate a plurality of current pulses through the plurality of wires. The plurality of current pulses imitate a plurality of lightning strikes. The method further includes striking the component with the plurality of current pulses from the pulse generator, and reconnecting the plurality of wires to one or more different sets of the plurality of tabs between the plurality of current pulses.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: March 1, 2022
    Assignee: The Boeing Company
    Inventor: Carol E. Anway