Overvoltage Patents (Class 361/91.1)
  • Patent number: 11289903
    Abstract: An apparatus includes a transistor coupled between an input pin and an output pin and an overvoltage detection circuit configured to receive a serial interface signal from the input pin and generate an enable signal in response to a voltage of the serial interface signal exceeding a voltage threshold. The apparatus also includes a first circuit configured to apply a clamping voltage to a gate of the transistor based on the enable signal to regulate a voltage provided at the output pin.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: March 29, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Byungchul Jang, Roland Son
  • Patent number: 11289895
    Abstract: A protective device includes a first fuse circuit, an overvoltage protection circuit, and a second fuse circuit. The first fuse circuit interrupts a flow of a line current from a voltage terminal to the electrical load when an intensity of the line current reaches a first current intensity limit value. The overvoltage protection circuit electrically connects poles of the voltage terminal when a first voltage limit value of a voltage is reached on the first fuse circuit to force the line current to reach the first current intensity limit value. The second fuse circuit activates the overvoltage protection circuit when a second voltage limit value of a voltage on the second fuse circuit is reached to electrically connect the poles of the voltage terminal. The second voltage limit value is based at least in part on a nominal voltage of the electrical load.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: March 29, 2022
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventor: Jörg Blanke
  • Patent number: 11289899
    Abstract: A direct-current breaking device includes a main circuit breaker inserted on a DC line, a resonant circuit connected in parallel with the main circuit breaker, and a MOSA connected in parallel with the main circuit breaker via the resonant circuit. The resonant circuit includes first, second, third, and fourth switching elements, a capacitor, and a reactor. A first circuit unit including the first switching element and the second switching element connected in series with each other, and a second circuit unit including the third switching element and the fourth switching element connected in series with each other are connected in parallel. The capacitor is connected between a connection point of the first switching element and the second switching element and a connection point of the third switching element and the fourth switching element to constitute a bridge circuit. The bridge circuit and the reactor are in series with each other.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 29, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Sho Tokoyoda, Takashi Inagaki, Kenji Kamei
  • Patent number: 11276999
    Abstract: A protective device includes a first fuse circuit, an overvoltage protection circuit, and a second fuse circuit. The first fuse circuit prevents a flow of a line current from a voltage terminal to the electrical load when the line current reaches a first nominal current. The overvoltage protection circuit is connected downstream of the first fuse circuit and upstream of the electrical load, and is adapted to electrically connect two poles of the voltage terminal when a voltage at the voltage terminal reaches a first voltage limit to force the line current to the first nominal current such that the first fuse circuit is triggered. The second fuse circuit is connected downstream of the overvoltage protection circuit and upstream of the electrical load, and prevents flow of the line current when the line current reaches a second nominal current, wherein the second nominal current is based on the electrical load.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: March 15, 2022
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Yves Hackl, Simon-Immanuel Gries
  • Patent number: 11257442
    Abstract: The present disclosure provides a control circuit, a light source driving device and a display apparatus. The control circuit comprises a current source circuit configured to generate a current signal having a magnitude positively correlated with a temperature of a region where the control circuit is located; a conversion circuit coupled to the current source circuit and configured to convert the current signal generated by the current source circuit into a voltage signal; and a first comparison circuit coupled to the conversion circuit and configured to output a control signal for controlling brightness of a light source according to the voltage signal received from the conversion circuit, a magnitude of the control signal being negatively correlated with the temperature of the region where the control circuit is located, and the brightness of the light source being positively correlated with the magnitude of the control signal.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: February 22, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ye Hu, Xiaoying Lu
  • Patent number: 11251695
    Abstract: Systems and methods for distributing power in a power-to-the-edge system architecture are provided. In one embodiment, a system comprises an intelligent power switch configured to couple to a power supply, wherein the intelligent power switch outputs a first differential voltage output; and a plurality of intelligent remote nodes each comprising a management microcontroller (MCU) and a DC-to-DC converter. The intelligent remote nodes each receive the differential voltage output, and are communicatively coupled to a data network. The intelligent power switch comprises a processor executing an intelligent start-up control and switching function and an electrical fault detection function. The intelligent power switch outputs the differential voltage at a first voltage level while the electrical fault detection function monitors the differential voltage output.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 15, 2022
    Assignee: CommScope Technologies LLC
    Inventors: David Thomas Lambert, Lee Holloway, Andrew Williams, David Thomas
  • Patent number: 11211376
    Abstract: An integrated circuit includes two or more substrates stacked one over another and a first set of electrical components on one or more of the two or more substrates. The two or more substrates include a first substrate having a first predetermined doping type and a second substrate having the first predetermined doping type. The first set of electrical components is configured to form a first circuit. The integrated circuit further includes a first ground reference rail electrically connected to the first circuit, a first common ground reference rail, and a first ESD conduction element electrically connected between the first ground reference rail and the first common ground reference rail. The first ESD conduction element includes a first diode on the first substrate and a second diode on the second substrate. The first diode and the second diode are electrically connected in parallel and have opposite polarities.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 28, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Wei Yu Ma, Chia-Hui Chen, Kuo-Ji Chen
  • Patent number: 11171482
    Abstract: The invention relates to an overvoltage protection device with monitoring and communication functions, in particular for the information and process industries, having at least one surge arrester with a self-diagnostics unit and a wireless and/or wired standard interface for data transmission. According to the invention, an additional module is provided to detect the behaviour and/or the properties of a connected electrical energy source, wherein a bidirectional exchange of data and commands to and between a higher-level control system and among multiple overvoltage protection devices takes place and parametrisation of lower-level terminals to be protected can be realised via the standard interface.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: November 9, 2021
    Assignee: DEHN SE + CO KG
    Inventors: Ralph Brocke, Peter Zahlmann
  • Patent number: 11164953
    Abstract: A semiconductor device includes a semiconductor layer including first and second electrode forming surfaces and side surface, an anode electrode formed on the first electrode forming surface, a cathode electrode formed on the second electrode forming surface; an insulating film continuously formed from the first electrode forming surface to the side surface so as to cover the first edge. The side surface of the semiconductor layer is covered with the insulating film, so that a leak current flowing along the side surface is reduced. Further, the side surface is protected by the insulating film, making cracking, chipping, cleavage, and the like less likely to occur.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 2, 2021
    Assignee: TDK CORPORATION
    Inventors: Jun Hirabayashi, Minoru Fujita, Yoshiaki Fukumitsu
  • Patent number: 11128121
    Abstract: An apparatus is provided which comprises: a protection circuitry coupled between: a node and a first circuitry that is to selectively output a first voltage, the node coupled to a second circuitry that is to selectively output a second voltage, the protection circuitry comprising: a pair of complementary parallel transistors coupled between the node and the first circuitry, the pair comprising first and second transistors, wherein a gate of the first transistor is to receive a control signal at the first voltage, and a third transistor to selectively couple a gate of the second transistor to the node, a gate of the third transistor to receive the control signal at the first voltage.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: September 21, 2021
    Assignee: Intel Corporation
    Inventor: Kim Sim Gan
  • Patent number: 11114888
    Abstract: A power supply device includes a main power supply, a sub-power supply, a main power supply path, a sub-power supply path, a power supply selector switch, and a load selector switch group. The main power supply path is connected to the main power supply. The sub-power supply path is different from the main power supply path and is connected to the sub-power supply. The load selector switch group is disposed between the main power supply path and the sub-power supply path, and the load unit, and performs switching so as to connect one of the main power supply path and the sub-power supply path to the load unit and to disconnect the other from the load unit, according to switching of the power supply selector switch.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: September 7, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Shuuji Satake, Yoshihito Aoki, Hiroo Yabe, Tsutomu Saigo
  • Patent number: 11101755
    Abstract: An arrangement contains an asynchronous machine, which, in generator operation, is configured to feed electric power into an AC network. Accordingly, the asynchronous machine can be dual-fed by a modular multi-stage converter in a matrix configuration. The asynchronous machine has a rotor and the modular multi-stage converter is connected to the rotor of the asynchronous machine.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: August 24, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventors: Friedemann Augsburger, Rainer Gruber, German Kuhn, Alexander Rentschler, Kunal Sharma
  • Patent number: 11095120
    Abstract: A surge protection device includes a surge protection circuit, a controller, and a wireless module. The surge protection circuit has a plurality of surge protection elements, receives a power source and correspondingly generates a sampling signal according to the power source. The controller compares a representative voltage value of the power source corresponding to the sampling signal with a first reference value to determine a using state of the surge protection circuit. The wireless module correspondingly transmits the using state to a remote server.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: August 17, 2021
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Po-Yi Ku, Chien-Lung Wang
  • Patent number: 10998761
    Abstract: A photovoltaic system includes groups of solar cells that can be switched in and out of the photovoltaic system. In response to detecting initiation of rapid shutdown, a control circuit controls a switch device to switch out a group of solar cells to lower the output voltage of the photovoltaic system below a safety level. In response to detecting a release trigger that indicates resumption of normal operation, the control circuit controls the switch device to switch back the group of solar cells to restore the output voltage of the photovoltaic system to a normal operating level. Solar cells may be switched out by disconnecting them from the photovoltaic system and switched back by reconnecting them into the photovoltaic system. Solar cells may also be switched out by shorting them out of the photovoltaic system and switched back in by removing the short.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: May 4, 2021
    Assignee: SunPower Corporation
    Inventors: Zachary S. Judkins, Jonathan L. Ehlmann
  • Patent number: 10958155
    Abstract: A semiconductor device according to an embodiment is a semiconductor device including: a first diode having a first anode and a first cathode, the first anode for electrically connecting to one of a first electrode and a second electrode of a semiconductor element including the first electrode, the second electrode, and a gate electrode; a first capacitor having a first end electrically connected to the first cathode, and a first other end; a bias element having a first bias element end electrically connected to the first cathode and the first end, and a second bias element end for electrically connecting to a positive electrode of a direct-current power supply including the positive electrode and a negative electrode; a second diode having a second anode and a second cathode, the second anode electrically connected to the first other end; a second capacitor having a second end and a second other end, the second end electrically connected to the second cathode; a switch electrically connected in parallel to t
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 23, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kentaro Ikeda
  • Patent number: 10944391
    Abstract: Universal Serial Bus (USB) protection circuits are provided. A circuit includes a plurality of first transistors connected in series between a pad and ground. The circuit also includes a plurality of second transistors connected in series between the pad and a supply voltage. The circuit further includes a control circuit that applies respective bias voltages to each one of the plurality of first transistors and to each one of the plurality of second transistors. The bias voltages are configured to: turn off the plurality of first transistors and turn off the plurality of second transistors when a pad voltage of the pad is within a nominal voltage range; sequentially turn on the plurality of first transistors when the pad voltage increases above the nominal voltage range; and sequentially turn on the plurality of second transistors when the pad voltage decreases below the nominal voltage range.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 9, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Daniel M. Dreps
  • Patent number: 10910818
    Abstract: An anti-short-circuit detection apparatus includes a probe, a detection resistor, a switching circuit, and a detection circuit. The probe is disposed between a power port and a ground port. A first terminal of the detection resistor is electrically coupled to a power circuit of the user terminal, and a second terminal of the detection resistor is electrically coupled to the probe. The switching circuit is electrically coupled to the first terminal of the detection resistor and a processor of the user terminal and is configured to perform switching to be grounded or ungrounded under the control of the processor. The detection circuit is electrically coupled to two terminals of the detection resistor and the processor, and is configured to trigger the processor to control the user terminal to issue a short-circuit warning or turn off the power circuit when the short-circuit current is not zero.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: February 2, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Deliang Li, Zexu Qian
  • Patent number: 10895391
    Abstract: An overvoltage recovery circuit (ORC), a controller for an HVAC system and an HVAC system are disclosed herein. In one embodiment, the ORC includes: (1) a first supply voltage terminal connected to a first voltage supply, (2) a second supply voltage terminal connected to a second voltage supply, (3) interruption circuitry including a switch and a trip terminal connected to the second supply voltage terminal and (4) detection circuitry connected to the first supply voltage terminal and the switch of the interruption circuitry, the detection circuitry configured to operate the switch in response to an overvoltage condition at the first supply voltage terminal.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 19, 2021
    Assignee: Lennox Industries Inc.
    Inventor: Jimmie Curry
  • Patent number: 10886731
    Abstract: The present application proposes an over-voltage protection circuit for a USB Type-C connector. The USB Type-C connector has at least one input signal pin. The over-voltage protection circuit includes a control circuit, a voltage level shift circuit, and a system clamping circuit. The control circuit generates a control signal according to a bias voltage. The voltage level shift circuit is electrically connected to the at least one input signal pin and the control circuit, and arranged to receive the control signal and at least one input signal and the control signal from the at least one input signal pin, and regulate a voltage level of the at least one input signal according to the control signal. The system clamping circuit is electrically connected to the level shift circuit, and clamps the voltage level of the regulated input signal down to below a threshold.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: January 5, 2021
    Assignees: VOLTRON MICROELECTRONICS CORP., UPI SEMICONDUCTOR CORP.
    Inventor: Chun-Yi Cheng
  • Patent number: 10883469
    Abstract: A system for interrupting ignition is disclosed. Specific implementations of ignition interrupters may include a first conductive tab configured to couple to a spark plug; a second conductive tab configured to couple to a spark plug wire; a first tab holder coupled with the first conductive tab; a second tab holder coupled with the second conductive tab, where the second conductive tab overlaps with the first conductive tab; a sled positioned perpendicularly to a plane of the first conductive tab and the second conductive tab, the sled coupled between the first conductive tab and the second conductive tab; a first spring coupled to the sled; and a second spring coupled to the sled; where the sled may be configured to move to an open position in the gap between the first conductive tab and the second conductive tab, decompressing the first spring and the second spring.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: January 5, 2021
    Assignee: Zombiebox International LLC
    Inventors: Timothy David Leedy, Jay Patel
  • Patent number: 10826285
    Abstract: A circuit to protect a USB connector from corrosion on its CC pins includes a first node coupled to a first power source or a first pull-down resistor, a second node coupled to the CC pins and a second power source, and a second pull-down resister coupled to the second node. A detection circuit compares the voltage at the first node with a first reference voltage. The detection circuit also compares the voltage at the second node with second and third reference voltages. A control logic circuit generates a corrosion detection signal in response to the voltage at the second node being less than the third reference voltage and greater than the second reference voltage when the voltage at the first node is greater than the first reference voltage.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: November 3, 2020
    Assignee: NXP B.V.
    Inventors: Yijie Zhu, Sung Hoon Bae, Sungil Ha
  • Patent number: 10764991
    Abstract: Disclosed is a printed circuit board including an overvoltage controlling element and an electronic device including the same. The printed circuit board includes a first outer layer, a second outer layer, at least one inner layer stacked between the first and second outer layers, an overvoltage controlling element comprising overvoltage controlling circuitry mounted on the first outer layer and including a plurality of terminals of which a first terminal is connected to a ground, and a conductive area configured to transfer at least a part of a first voltage applied from an external power source to an external IC and to transfer a remaining part of the first voltage to the overvoltage controlling element.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: September 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunjun Park, Hongkook Lee, Dongkyoon Han
  • Patent number: 10756123
    Abstract: An electrostatic discharge circuit and a manufacturing method therefor, and a display apparatus. The electrostatic discharge circuit includes: a base substrate; at least one first signal line located on the base substrate, at least one second signal line and a first isolation layer, wherein the at least one first signal line and the at least one second signal line are insulated from each other by the first isolation layer; and a second isolation layer covering the at least one second signal line, wherein a via hole is provided on the at least one first signal line, the via hole penetrates through the first isolation layer and the second isolation layer so that the at least one first signal line is located at the bottom of the via hole, and a part of the via hole is enclosed by the at least one second signal line.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: August 25, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yang Li, Shuo Tang, Ying Meng, Bin Feng, Peng Sun
  • 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
  • Patent number: 10680135
    Abstract: The invention relates to an optoelectronic component (100) comprising a semiconductor layer sequence (1) having an active layer (10), wherein the active layer (10) is designed to produce or absorb electromagnetic radiation in intended operation. Furthermore, the component (100) comprises a first contact structure (11) and a second structure (12), by means of which the semiconductor layer sequence (1) can be electrically contacted in intended operation. In operation, a voltage is applied to the contact structures (11, 12), wherein an operation-related voltage difference ?Ubet between the contact structures (11, 12) arises. When the voltage difference is increased, a first arc-over occurs in or on the component (100) between the two contact structures (11, 12). A spark gap (3) between the contact structures (11, 12), which arises in the event of the first arc-over, passes predominantly through a surrounding medium in the form of gas or vacuum and/or through a potting.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: June 9, 2020
    Assignee: OSRAM OLED GMBH
    Inventors: Berthold Hahn, Korbinian Perzlmaier, Christian Leirer, Anna Kasprzak-Zablocka
  • Patent number: 10670293
    Abstract: A monitoring system for monitoring a heating, ventilation, and air conditioning (HVAC) system of a building includes a monitoring server. The monitoring server is configured to receive an aggregate control line current value from a monitoring device. The aggregate control line current value represents a total current flowing through control lines used by a thermostat to command the HVAC system. The monitoring server is configured to determine a commanded operating mode of the HVAC system in response to the aggregate control line current value. Operating modes of the HVAC system include at least one of an idle mode and an ON mode. The monitoring server is configured to analyze a system condition of the HVAC system based on the determined commanded operating mode.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: June 2, 2020
    Assignee: EMERSON ELECTRIC CO.
    Inventors: Priotomo Abiprojo, Jeffrey N. Arensmeier
  • Patent number: 10667363
    Abstract: A method of driving an LED string is provided and includes steps of: (a) determining whether or not a detected voltage of a control terminal of a transistor is lower than a first reference voltage by a first comparator, if not, raising a voltage of the LED string by a power supply device and performing step (a), if yes, performing step (b); (b) determining whether or not the detected voltage is lower than a second reference voltage by a second comparator, if not, determining that a short circuit occurs, if yes, performing step (c); (c) increasing an output current of the LED string by an input current source; and (d) determining whether or not a current of the LED string reaches a maximum current that is adjustable by a light controller, if yes, determining that a short circuit occurs, if not, returning to step (c).
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: May 26, 2020
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventors: Wen-Yen Chen, Ming-Hung Chang
  • Patent number: 10622349
    Abstract: A semiconductor device includes a first overvoltage detection unit including a first comparator arranged to output a first detection signal based on a first divided voltage after dividing an output voltage of a power supply circuit by first resistors disposed externally and a second overvoltage detection unit including second resistors and a second comparator arranged to output a second detection signal based on a second divided voltage after dividing the output voltage by the second resistors.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: April 14, 2020
    Assignee: Rohm Co., Ltd.
    Inventors: Kei Nagao, Toru Takahashi
  • Patent number: 10601340
    Abstract: An electrical configuration contains at least one submodule which has a first and a second outer electrical terminal. The configuration further has a bypass switching device, which is electrically connected between the first and second terminals and in the on-state causes an electrical short-circuit in at least one current flow direction between the two outer terminals. The bypass switching device has a thyristor with an anode terminal, a cathode terminal and a trigger terminal and is connected by its anode terminal to one of the two outer terminals and by its cathode terminal to the other of the two outer terminals. A triggering device is connected to the trigger terminal of the thyristor for triggering the thyristor, and a switch is provided which in the on-state connects the anode terminal of the thyristor to the trigger terminal of the thyristor.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: March 24, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joerg Dorn, Daniel Schmitt, Frank Schremmer, Marcus Wahle, Felix Hacker
  • Patent number: 10594130
    Abstract: A disconnect component coupled between a lighting load and a main power line. The disconnect component includes an input coupled to the main power line and a neutral line input to the disconnect component from the 277 volt circuit and an output coupled to the lighting load. The disconnect component includes a monitor that monitors a voltage on the main power line and a coupling component that couples the main power line to the output. The coupling component is configured to decouple the main power line from the output when the monitor senses a voltage on the main power line is higher than an upper limit voltage and re-couple the main power line to the output when the monitor senses that the voltage on the main power line is below the upper limit voltage.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: March 17, 2020
    Assignee: Appalachian Lighting Systems, Inc.
    Inventors: James J. Wassel, John R. Roney
  • Patent number: 10574226
    Abstract: In some examples, a gate driver includes a gate sense pin and a gate sense circuit configured to couple to a node of a transistor via the gate sense pin. The gate sense circuit includes an overcurrent detection circuit configured to detect a first fault condition based on the node before the transistor turns on in a soft switching mode. The gate sense circuit also includes a Miller plateau detection circuit configured to detect a second fault condition based on the node when the transistor is turning on in a hard switching mode.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: February 25, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Navaneeth Kumar Narayanasamy, Salil Chellappan, Apoorva Awasthy
  • Patent number: 10476290
    Abstract: Systems, methods and apparatus for charging a two-terminal portable electronic device. In one example, the system, method, and apparatus include detecting, with a detection circuit, the two-terminal portable electronic device and electrically coupling the two-terminal portable electronic device to a multi-pin universal serial bus connector when the two-terminal portable electronic device is coupled to a receptacle provided by a charger; and charging, with an activation circuit, the two-terminal portable electronic device using a configuration channel terminal of the multi-pin universal serial bus connector upon detection of the two-terminal portable electronic device.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: November 12, 2019
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Frederick J. Weissinger, Ryan Baker
  • Patent number: 10476215
    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 predefine trip temperature.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: November 12, 2019
    Assignee: Littelfuse, Inc.
    Inventors: Boris Golubovic, Kunghao Yu
  • Patent number: 10468970
    Abstract: The invention relates to a method and to a circuit arrangement for limiting the starting current for intermediate voltage circuits that have at least one storage capacitor.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: November 5, 2019
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Günter Haas, Alex Schneider
  • Patent number: 10461740
    Abstract: A switch having a drain terminal, a source terminal and a control terminal. The switch comprises a normally-on device including a first terminal, a second terminal, and a control terminal, a normally-off device including a first terminal, a second terminal, and a control terminal, and a clamp circuit. The first terminal of the normally-on device is the drain terminal of the switch and the control terminal of the normally-on device is coupled to the source terminal of the switch. The control terminal of the normally-off device is coupled to the control terminal of the switch. The second terminal of the normally-off device is the source terminal of the switch, and the first terminal of the normally-off device is coupled to the second terminal of the normally-on device. The clamp circuit coupled across the normally-off device and comprises a first transistor coupled to the first terminal of the normally-off device.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: October 29, 2019
    Assignee: Power Integrations, Inc.
    Inventor: Hartley Horwitz
  • Patent number: 10431939
    Abstract: Over-voltage protection systems and methods are disclosed. In one aspect, a biasing circuit is added to a pre-existing clamp required by the Universal Serial Bus (USB) Type-C specification at a configuration control (CC) pin. The biasing circuit turns the pre-existing clamp into an adjustable clamp that dynamically adjusts to over-voltage conditions. In an exemplary aspect, the biasing circuit may include a biasing field effect transistor (FET) and a pair of switches that selectively couple the pre-existing clamp and the biasing FET to fixed voltages such that the CC pin is maintained at an acceptable voltage. In another exemplary aspect, the biasing circuit may omit the biasing FET and rely on two switches that selectively couple the pre-existing clamp to fixed voltages such that the CC pin is maintained at an acceptable voltage.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 1, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Hector Ivan Oporta, Shashank Prakash Mane, Thomas O'Brien, Christian Gregory Sporck
  • Patent number: 10418988
    Abstract: A power breaker apparatus which performs energization and interception between a power supply and a load, includes a current measuring part which measures a current value flowing in a power line supplying electric power from the power supply to the load, an interception part disposed in the power line and including a plurality of semiconductor switches connected in parallel to each other, a control part comparing the current value measured in the current measuring part with an interception threshold value and, controlling on/off of the plurality of the semiconductor switches according to a comparison result, and a failure detection part which detects a potential on an output side of the interception part so that the control part checks for a failure of the semiconductor switches.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: September 17, 2019
    Assignee: YAZAKI CORPORATION
    Inventor: Mitsuaki Morimoto
  • Patent number: 10389106
    Abstract: A cable including a power conductor configured to transmit electrical power between a first device and a second device, a first data conductor configured to transmit data between the first device and the second device, and a first protection circuit coupled to the first data conductor and associated with a first temperature sensing element, the first protection circuit configured to mitigate current flowing through the first data conductor if a temperature detected by the first temperature sensing element rises above a predefined first trip temperature, wherein the opening of the first data line indicates a fault condition to a device to which the cable is connected, whereby electrical power flowing through the power conductor is resultantly mitigated.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: August 20, 2019
    Assignee: Littelfuse, Inc.
    Inventors: Boris Golubovic, Kunghao Yu
  • Patent number: 10365673
    Abstract: A protection and attenuation circuit for sensitive AC loads is described. The circuit provides AC power protection and attenuation utilizing high-efficiency switch-mode techniques to attenuate an AC power signal by incorporating a bidirectional, transistorized switch driven from a pulse width modulation signal, PWM. The circuit monitors characteristics of the AC power signal driving a known load and characteristics of the load or other elements and determines the duty cycle of the pulse width modulated signal, PWM, based upon the duration and amplitude of the over-voltage, over-current, over-limit or other event.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: July 30, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Joel Butler
  • Patent number: 10319545
    Abstract: A surge protective device (SPD) module includes a module housing, first and second module electrical terminals mounted on the module housing, a gas discharge tube (GDT) mounted in the module housing, and a fail-safe mechanism mounted in the module housing. The GDT includes a first GDT terminal electrically connected to the first module electrical terminal and a second GDT terminal electrically connected to the second module electrical terminal. The fail-safe mechanism includes: an electrically conductive shorting bar positioned in a ready position and repositionable to a shorting position; a biasing member applying a biasing load to the shorting bar to direct the shorting bar from the ready position to the shorting position; and a meltable member. The meltable member maintains the shorting bar in the ready position and melts in response to a prescribed temperature to permit the shorting bar to transition from the ready position to the shorting position under the biasing load of the biasing member.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: June 11, 2019
    Assignee: Iskra Za{hacek over (s)}{hacek over (c)}ite d.o.o.
    Inventors: Sebastjan Kamen{hacek over (s)}ek, Tadej Knez, Igor Juri{hacek over (c)}ev, Milenko Vukotić, Thomas Tsovilis, Zafiris G. Politis
  • Patent number: 10305480
    Abstract: A voltage generating circuit comprising: a first switch circuit, operating in a first power domain; a second switch circuit, operating in a second power domain; a first transistor of first type, comprising a control terminal coupled to the first switch circuit and the second first switch circuit, wherein the control terminal of the first transistor of first type is coupled to a predetermined voltage source via the first switch circuit if the first switch circuit is active, wherein the control terminal of the first transistor of first type is coupled to the predetermined voltage source via the second switch circuit if the second switch circuit is active; and an output circuit, coupled to the first transistor of first type and operating in the second power domain.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: May 28, 2019
    Assignee: MEDIATEK INC.
    Inventor: Wen-Yi Lin
  • Patent number: 10271529
    Abstract: A fishing reel configured to forwardly release a fishing line includes a reel unit, a spool rotatably supported by the reel unit, an electric power generator that generates an electric power upon a rotation of the spool, an electric component including a controller, an overvoltage protection circuit, and a bypass circuit. The controller operates using the electric power generated by the electric power generator. The overvoltage protection circuit is electrically connected to the electric power generator and the electric component, the overvoltage protection circuit limits a voltage of the electric power output from the electric power generator to a predetermined magnitude. The bypass circuit supplies the electric power generated by the electric power generator to the electric component by bypassing the overvoltage protection circuit upon a determination that the voltage of the electric power generated by the electric power is less than or equal to a predetermined value.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 30, 2019
    Assignee: SHIMANO INC.
    Inventor: Fumihide Numata
  • Patent number: 10256062
    Abstract: The invention relates to a device for thermally disconnecting or tripping an overvoltage protection device, comprising: a locking element (A1), on which a first force (F1) acts, and which is fixed in such a way that same is released when a limit temperature is exceeded; and a slider (S1) which is blocked in a first state (Z1) by the fixed locking element (A1), and on which a second force (F2) acts in order to transfer same into a second state (Z2) when the locking element (A1) is released.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: April 9, 2019
    Assignee: DEHN + SÖHNE GMBH + CO. KG
    Inventors: Uwe Strangfeld, Stephan Hierl
  • Patent number: 10211603
    Abstract: The invention specifies a surge protection element (100) comprising a first electrode (1), a second electrode (2) and a gas discharge chamber (10). The gas discharge chamber (10) is arranged between the first electrode (1) and the second electrode (2), wherein the surge protection element (100) comprises an intermediate electrode structure (3), which is arranged in the gas discharge chamber (10) and is electrically isolated from the first electrode and the second electrode (1, 2).
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: February 19, 2019
    Assignee: EPCOS AG
    Inventors: Eduard Dorsch, Frank Werner, Peter Bobert, Thomas Westebbe
  • Patent number: 10211327
    Abstract: Semiconductor devices including an elevated or raised doped crystalline structure extending from a device layer are described. In embodiments, III-N transistors include raised crystalline n+ doped source/drain structures on either side of a gate stack. In embodiments, an amorphous material is employed to limit growth of polycrystalline source/drain material, allowing a high quality source/drain doped crystal to grow from an undamaged region and laterally expand to form a low resistance interface with a two-degree electron gas (2DEG) formed within the device layer. In some embodiments, regions of damaged GaN that may spawn competitive polycrystalline overgrowths are covered with the amorphous material prior to commencing raised source/drain growth.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: February 19, 2019
    Assignee: Intel Corporation
    Inventors: Marko Radosavljevic, Sansaptak Dasgupta, Sanaz K. Gardner, Seung Hoon Sung, Han Wui Then, Robert S. Chau
  • Patent number: 10177755
    Abstract: Universal Serial Bus (USB) protection circuits are provided. A circuit includes a plurality of first transistors connected in series between a pad and ground. The circuit also includes a plurality of second transistors connected in series between the pad and a supply voltage. The circuit further includes a control circuit that applies respective bias voltages to each one of the plurality of first transistors and to each one of the plurality of second transistors. The bias voltages are configured to: turn off the plurality of first transistors and turn off the plurality of second transistors when a pad voltage of the pad is within a nominal voltage range; sequentially turn on the plurality of first transistors when the pad voltage increases above the nominal voltage range; and sequentially turn on the plurality of second transistors when the pad voltage decreases below the nominal voltage range.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: January 8, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Daniel M. Dreps
  • Patent number: 10176949
    Abstract: A control apparatus for a relay and controlling method thereof. The controlling method includes: detecting an input voltage of the relay and a current flowing through the relay; obtaining a voltage zero crossing point information according to the input voltage and a reference voltage value; turning on the relay at an initial turn-on time point according to the voltage zero crossing point information, and obtaining a real turn-on time point of the relay according to the current flowing through the relay; obtaining a turn-on delay of the relay according to the initial turn-on time point and the real turn-on time point, and adjusting the initial turn-on time point to obtain a compensated turn-on time point according to the turn-on delay.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: January 8, 2019
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Jian-Wei Hu, Chih-Tarng Chuang
  • Patent number: 10153766
    Abstract: A device is provided that includes a switch within a package. A first electrical connection is provided between a load terminal of the switch and first pin of the package, and a second electrical connection at least partially different from the first electrical connection is provided between the switch and a second pin of the package. The second pin is different from the first pin.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: December 11, 2018
    Assignee: INFINEON TECHNOLOGIES AUSTRIA AG
    Inventors: Anton Mauder, Martin Gruber, Goran Keser
  • Patent number: 10095412
    Abstract: A memory system and method for improving write performance in a multi-die environment are disclosed. In one embodiment, a memory system is provided comprising a plurality of memory dies and a controller. The controller is configured to determine a programming status of each of the plurality of memory dies and dynamically adjust a maximum peak current limit of the plurality of memory dies based on the programming status of each of the plurality of memory dies. Other embodiments are provided.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 9, 2018
    Assignee: SanDisk Technologies LLC
    Inventors: Hua-Ling Cynthia Hsu, Abhijeet Manohar, Victor Avila, Tien-Chien Kuo, Jong Hak Yuh
  • Patent number: 10090754
    Abstract: Disclosed herein is a photovoltaic inverter that prevents degradation in the efficiency of photovoltaic generation by applying a reverse voltage of a DC voltage stored in a DC link capacitor to a solar cell array. The photovoltaic inverter includes: a DC link capacitor configured to store a DC voltage output from the solar cell array; a power conversion stage configured to generate an AC power by using the DC voltage stored in the DC link capacitor to transmit the generated AC power to a power system; and a controller configured to apply the DC voltage stored in the DC link capacitor to the power conversion stage or apply a reverse voltage of the DC voltage stored in the DC link capacitor to the solar cell array depending on whether a driving value of the solar cell array satisfies a predetermined driving condition.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: October 2, 2018
    Assignee: LSIS CO., LTD.
    Inventor: Young-Min Kim