Patents Examined by Stephen W. Jackson
  • Patent number: 10855072
    Abstract: Disclosed are an intelligent safety relay and a circuit applied thereby. The intelligent safety relay includes: a first processing chip MCU A, a second processing chip MCU B, first and second input driving circuits, first to third input sampling circuits, first and second diagnostic signal generation circuits, first and second logic circuits, a diagnostic signal detection circuit, first and second relay driving circuits, and first and second relay circuits. The first processing chip MCU A and the second processing chip MCU B can automatically control, based on samples of the input driving circuits taken by the input sampling circuits, connection or disconnection of contacts in the first and second relay circuits so as to switch on or off an output.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 1, 2020
    Assignees: SHANGHAI CHENZHU INSTRUMENT CO., LTD., SHANGHAI CHENZHU SAFETY TECHNOLOGY CO., LTD.
    Inventors: Xiaoquan Chen, Ting Zhou, Xinglei Li, Guangyong Song, Yunli Qin
  • Patent number: 10847964
    Abstract: In an example embodiment, a universal serial bus (USB) Type-C controller comprises a current detector circuit configured to provide over-current protection on a voltage bus (VBUS) line. The current detector circuit comprises a current sense amplifier, a reference voltage generator, and a comparator coupled to the current sense amplifier and to the reference voltage generator. The current sense amplifier is configured to receive a pair of input voltages from the VBUS line and to output an indicator signal responsive to an input voltage difference between the pair of input voltages. The reference voltage generator is configured to generate a reference voltage in response to a voltage selector signal. The comparator is configured to output an interrupt signal responsive to the indicator signal exceeding the reference voltage.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: November 24, 2020
    Assignee: Cypress Semiconductor Corporation
    Inventors: Derwin W. Mattos, Arnab Chakraborty, Ramakrishna Venigalla, Gerard Kato, Vaidyanathan Varsha
  • Patent number: 10847971
    Abstract: Embodiments of the disclosure include a fault current limiter having a first current splitting device including a primary winding and secondary winding wound around a first core, and a second current splitting device including a primary winding and a secondary winding wound around a second core. The fault current limiter may further include a fault current limiter module (e.g., a switching module) electrically connected in series between the secondary winding of the first current splitting device and the secondary winding of the second current splitting device. The fault current limiter may further include a second fault current limiter module electrically connected in series with the secondary winding of the second current splitting device. By splitting the fault current limiter into parts with fault current limiter modules interspersed between the windings, the fault current limiter may be to be built with less insulation between the windings.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: November 24, 2020
    Assignee: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Adrian Wilson, Shankar Kodle, Saeed Jazebi, Piotr Lubicki
  • Patent number: 10842019
    Abstract: A printed circuit board for mounting on a support member, the printed circuit board including: a plurality of mounted portions for mounting the printed circuit board on the support member; a ground pattern configured to be electrically connected to the support member through the plurality of mounted portions; and a slit extended from a first mounted portion to a second mounted portion of the plurality of mounted portions and between a first portion, in which an electronic device is provided, of the ground pattern and a second portion, in which an electronic device is not provided, of the ground pattern.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: November 17, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masahiro Shinotsuka, Kazunori Miyake, Teruhiko Suzuki
  • Patent number: 10840000
    Abstract: A safety system includes an electromagnet positioned in an area. A power controller is coupled to the electromagnet to supply power to the electromagnet in accordance with an event. A trigger mechanism configured to trigger the event when the area is traversed by a person with a weapon such that upon activation of the electromagnet a magnetic force is generated capable of attracting the weapon to make continued use difficult or impossible within the area.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: November 17, 2020
    Inventor: James J. Bitetto
  • Patent number: 10833500
    Abstract: A circuit for measuring temperature of an external switch is disclosed. The circuit includes a variable resistor, a switch coupled to the variable resistor in series, a fixed value resistor coupled to the variable resistor and a comparator coupled between the variable resistor and the fixed value resistor. The circuit is configured to compare voltage drop between a drain and a source of the external switch when the external switch is in ON state with voltage drop at the variable resistor and output a signal to indicate an overtemperature based on the comparing.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: November 10, 2020
    Assignee: NXP B.V.
    Inventor: Hermanus Johannes Effing
  • Patent number: 10832844
    Abstract: Disclosed is a dual phase, multi-frequency, electromagnetic generator that creates electromagnetic fields having a first phase on a first side of said electromagnetic generator and electromagnetic fields having a second phase on an opposite side of said electromagnetic generator. In addition, gaseous emission tubes generate light frequency signals on each side of the electromagnetic generator. Tesla coils are disposed at least partially within the cone of a conically shaped transmission coil to achieve a high degree of coupling between the conically shaped transmission coils and the Tesla coils. Sparks gaps are used to create a fast rise time signal, which creates multiple frequencies.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: November 10, 2020
    Assignee: Gene Koonce
    Inventor: Gene Koonce
  • Patent number: 10826481
    Abstract: A switching device 1 includes a SiC semiconductor chip 11 which has a gate pad 14, a source pad 13 and a drain pad 12 and in which on-off control is performed between the source and the drain by applying a drive voltage between the gate and the source in a state where a potential difference is applied between the source and the drain, a sense source terminal 4 electrically connected to the source pad 13 for applying the drive voltage, and an external resistance (source wire 16) that is interposed in a current path between the sense source terminal 4 and the source pad 13, is separated from sense source terminal 4, and has a predetermined size.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: November 3, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Masashi Hayashiguchi, Kazuhide Ino
  • Patent number: 10826287
    Abstract: A method for determining whether a fault is on a feeder line or a lateral line so as to allow an upstream recloser on the feeder line to immediately open in response to the fault if it determines the fault is on the feeder line. The method includes measuring a downstream voltage on the feeder line at a downstream recloser during the fault and transmitting the downstream voltage from the downstream recloser to the upstream recloser. The method can determine that the fault is on the feeder line or the lateral line by determining whether the fault voltage is approximately the same as the downstream voltage, or by comparing a first distance from the upstream recloser to the fault location using the fault voltage and a second distance from the upstream recloser to a last location of the fault current on the feeder line using the downstream voltage.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: November 3, 2020
    Assignee: S&C Electric Company
    Inventor: Yoav Sharon
  • Patent number: 10826290
    Abstract: Embodiments of an electrostatic discharge (ESD) protection device and a method of operating an ESD protection device are described. In one embodiment, the ESD protection circuit is connected between a VDD rail and a VSS rail and includes an internal floating ESD rail located between the VDD rail and the VSS rail, I/O pins connected between the internal floating ESD rail and the VSS rail, ESD diodes corresponding to at least one I/O pin, an internal bias cell corresponding to an I/O pin and configured to short the corresponding I/O pin to the internal floating ESD rail when the I/O pin is pulled high, and an internal bias cell corresponding to a VDD pin of the VDD rail and configured to short the VDD rail to the internal floating ESD rail when the VDD pin is pulled high.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 3, 2020
    Assignee: NXP B.V.
    Inventors: Gijs Jan de Raad, Madan Mohan Reddy Vemula
  • Patent number: 10818444
    Abstract: An arc suppressing circuit configured to suppress arcing across a power contactor coupled to an alternating current (AC) power source having a predetermined number of phases, each contact of the power contactor corresponding to one of the predetermined number of phases includes a number of dual unidirectional arc suppressors equal to the predetermined number of phases of the AC power source. Each dual unidirectional arc suppressor includes a first phase-specific arc suppressor configured to suppress arcing across the associated contacts in a positive domain, a a second phase-specific arc suppressor configured to suppress arcing across the associated contacts in a negative domain, and a coil lock controller, configured to be coupled between a contact coil driver of the power contactor, configured to detect an output condition from the contact coil driver and inhibit operation of the first and second phase-specific arc suppressors over a predetermined time.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: October 27, 2020
    Assignee: Arc Suppression Technologies
    Inventors: Reinhold Henke, Warren Kahle
  • Patent number: 10811870
    Abstract: An electric wire protection device includes a voltage adjusting unit that adjusts voltage of a power source side and supplies the resulting voltage to a load, and a controller that includes a calculation unit configured to compute temperature information of an electric wire connecting the power source and the load from a value of an electric current flowing through the voltage adjusting unit, and that is configured to make the voltage adjusting unit into a shutoff state of shutting off the power source and the load on the basis of the temperature information.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 20, 2020
    Assignees: YAZAKI CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Takashi Kikuchi, Takahiro Miyakawa, Syunsuke Nagakura, Keisuke Ueta, Tomoya Nishino, Noboru Ujigawa, Seiju Kawamata, Masataka Tsukioka, Rikuya Ezoe
  • Patent number: 10812063
    Abstract: A circuit protective system. The system includes an output controlling enablement of a transistor and an input sensing an operational parameter associated with the transistor. The system also includes detection circuitry providing an event fault indicator if the operational parameter violates a condition. The system also includes protective circuitry disabling the transistor in response to the event fault indicator and subsequently selectively applying an enabling bias to the transistor; the enabling bias is selected from at least two different bias levels and in response to a number of event fault indications from the detection circuitry.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 20, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Md. Abidur Rahman, Adam Quirk, Stephen Nortman, Sualp Aras
  • Patent number: 10811871
    Abstract: An improved low profile surge protector is provided that minimizes the space necessary between powered devices and power sources. The present invention provides protection for overvoltage events while using existing, standard household outlets and allows for slimmer devices to mount as close as possible to a wall without leaving unappealing gaps between the device and the wall.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 20, 2020
    Inventors: Anthony G. Gondor, William Hubbard Carter
  • Patent number: 10802562
    Abstract: A memory system includes a host interface, a nonvolatile memory, a power supply circuit, a protection circuit, and a first voltage monitor circuit. The power supply circuit is between the host interface and the nonvolatile memory, and supplies primary power to the nonvolatile memory. The protection circuit is between the host interface and the power supply circuit, and configured to clamp a power supply signal supplied from the host interface to the power supply circuit to a first voltage. The first voltage monitor circuit is between the host interface and the protection circuit, and configured to monitor a voltage level of the power supply signal supplied from the host interface and cause the voltage level of the power supply signal supplied to the power supply circuit to be decreased from the first voltage to a second voltage when the monitored voltage level is below a first threshold voltage.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 13, 2020
    Assignee: Toshiba Memory Corporation
    Inventor: Takehiko Katou
  • Patent number: 10790277
    Abstract: A semiconductor device provided with: a first input/output circuit connected to a first pad; a second input/output circuit disposed in the direction along one side constituted by a chip edge in relation to the first input/output circuit, the second input/output circuit being connected to a second pad; and an ESD protective circuit disposed near the outer-side chip edge of the first and second input/output circuits. The ESD protection circuit is provided with a resistor, a capacitor, an inverter, and an N-channel-type transistor.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: September 29, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Satoshi Maeda, Yasuyuki Morishita, Masanori Tanaka
  • Patent number: 10777996
    Abstract: An electronic overload current breaker supports arc-fault and ground-fault (AFGF) detection along with built-in shunt calibration (BISCâ„¢). The breaker may include a current sensing shunt and a control circuit electrically coupled to the current sensing shunt. This control circuit is configured to calibrate the current sensing shunt in response to application of a calibration current to the breaker. The control circuit can: (i) determine a magnitude of the calibration current applied to the breaker, (ii) map the magnitude of the calibration current to a first one of a plurality of current ratings for the breaker, and (iii) set the breaker to monitor overload conditions at the first one of the plurality of current ratings. The plurality of current ratings for the breaker can be less than the magnitude of the calibration current.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: September 15, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Jian Jiao, Jason Kohei Okerman, Sandy Omar Jimenez
  • Patent number: 10777997
    Abstract: A method for operating an electronic circuit breaker having a semiconductor switch that is connected between a voltage input and a load output and that is driven as a function of the output voltage sensed at the load output during the switching on and/or cutting in of a capacitive load, wherein the output voltage is compared with a stored voltage threshold value, wherein when the voltage threshold value is reached or negatively exceeded, a current limit, to which a load current carried by the semiconductor switch is limited, is increased from a nominal value to a first step value increased therefrom, wherein the current limit is reduced stepwise from the first step value to the original nominal value, and wherein the semiconductor switch is opened if the output voltage does not reach the voltage threshold during a triggering time after the stepwise reduction of the current limit.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: September 15, 2020
    Assignee: Ellenberger & Poensgen GmbH
    Inventors: Erich Fischer, Guido von der Lieck
  • Patent number: 10770452
    Abstract: Apparatus and methods for electrical overstress (EOS) protection circuits are provided herein. In certain configurations, an EOS protection circuit includes an overstress sensing circuit electrically connected between a pad and a first supply node, an impedance element electrically connected between the pad and a signal node, a controllable clamp electrically connected between the signal node and the first supply node and selectively activatable by the overstress sensing circuit, and an overshoot limiting circuit electrically connected between the signal node and a second supply node. The overstress sensing circuit activates the controllable clamp when an EOS event is detected at the pad. Thus, the EOS protection circuit is arranged to divert charge associated with the EOS event away from the signal node to provide EOS protection.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: September 8, 2020
    Assignee: Skyworks Solutions, Inc.
    Inventor: Leslie Paul Wallis
  • Patent number: 10759546
    Abstract: An aircraft electrical system includes a controller system having a self-testing system configured to test an operability of a transient voltage suppression device. A single line communication bus is connected to a communications output of the controller. A first lightning protection device including the transient voltage suppression device is configured to protect the controller from transient voltages. An enable/disable circuit comprising a normally closed switch connects a low side of the lightning protection device to a neutral.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 1, 2020
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Christopher Charles Eberts, Gary L. Hess