Patents Examined by Kevin J Comber
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Patent number: 11588324Abstract: Disclosed is a power distribution system for detecting and repairing all electrical faults, which performs at least one of immediate alarming, breaking, repairing, notifying, monitoring, and controlling according to a faulty section, place, and position where a fault occurred, if a resistance increase, an arc, an open phase, a connection failure, a partial wire disconnection, an incorrect wire connection, an abnormal voltage input, an electric leakage, a short circuit, a power imbalance occurs in three-phase or single-phase electrical equipment or in the present power distribution system.Type: GrantFiled: November 9, 2020Date of Patent: February 21, 2023Assignees: ITE CO., LTD., RF DEVICES, INC.Inventors: Na Woon Kim, In Tae Kim
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Patent number: 11585863Abstract: A system for ground fault detection includes an alternating current (AC) excitation source configured to provide an AC test signal to a circuit under test; a current transformer configured to detect a current of the AC test signal; a capacitive pickup configured to detect a voltage of the AC test signal; and a receiver which includes a display; and a processor configured to receive the voltage from the capacitive pickup; receive the current from the current transformer; and display on the display one or more components of the current.Type: GrantFiled: February 12, 2021Date of Patent: February 21, 2023Assignee: AVO Multi-Amp CorporationInventors: Charles Bogert, Andrew Sagl
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Patent number: 11581857Abstract: Components of a power amplifier controller may support lower voltages than the power amplifier itself. As a result, a surge protection circuit that prevents a power amplifier from being damaged due to a power surge may not effectively protect the power amplifier controller. Embodiments disclosed herein present an overvoltage protection circuit that prevents a charge-pump from providing a voltage to a power amplifier controller during a detected surge event. By separately detecting and preventing a voltage from being provided to the power amplifier controller during a surge event, the power amplifier controller can be protected regardless of whether the surge event results in a voltage that may damage the power amplifier. Further, embodiments of the overvoltage protection circuit can prevent a surge voltage from being provided to a power amplifier operating in 2G mode.Type: GrantFiled: March 30, 2022Date of Patent: February 14, 2023Assignee: Skyworks Solutions, Inc.Inventors: Wendy Ng, Wei Long, Kevin Cho
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Patent number: 11569651Abstract: An electrical receptacle contains a plug outlet that has a pair of contacts for electrical connection to respective hot and neutral power lines. A controlled switch, such as a TRIAC, is connected in series relationship between the outlet contact and the hot power line. Sensors in the receptacle outputs signals to a processor having an output coupled to the control terminal of the controlled switch. The processor outputs an activation signal or a deactivation signal to the controlled switch in response to received sensor signals that are indicative of conditions relative to the first and second contacts.Type: GrantFiled: October 4, 2022Date of Patent: January 31, 2023Assignee: Brainwave Research CorporationInventors: John Eriksen, Jean-Guy Gagne, Rene K. Pardo
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Patent number: 11569650Abstract: An electrical receptacle contains a plug outlet that has a pair of contacts for electrical connection to respective hot and neutral power lines. A controlled switch, such as a TRIAC, is connected in series relationship between the outlet contact and the hot power line. Sensors in the receptacle outputs signals to a processor having an output coupled to the control terminal of the controlled switch. The processor outputs an activation signal or a deactivation signal to the controlled switch in response to received sensor signals that are indicative of conditions relative to the first and second contacts.Type: GrantFiled: March 11, 2022Date of Patent: January 31, 2023Assignee: Brainwave Research CorporationInventors: John Eriksen, Jean-Guy Gagne, James W. Rogers, Patrick Belanger, Rene K. Pardo
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Patent number: 11566627Abstract: A fan driving circuit includes a primary winding, an activating capacitor, a control circuit, a switch circuit and a secondary winding. The primary winding and the activating capacitor are electrically coupled to an external power source. The control circuit generates a control signal. The switch circuit is electrically coupled to the first winding. The switch circuit is also electrically coupled to the activating capacitor. The switch circuit has at least one control terminal electrically coupled to the control circuit for receiving the control signal. The secondary winding is electrically coupled to the switch circuit. The secondary winding is electrically coupled to the switch circuit. The secondary winding electromagnetically drives a fan according to a flowing direction of its driving current. The switch circuit conducts the secondary winding's driving current's flowing direction based on the control signal's voltage level.Type: GrantFiled: December 11, 2020Date of Patent: January 31, 2023Assignee: XIAMEN LEEDARSON LIGHTING CO., LTDInventors: Jun Wang, Jiaqing Zhuang, Haipeng Xiao
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Patent number: 11569053Abstract: A fuse resistor includes a substrate, an insulation layer, a fuse element, a protection layer, a first electrode, and a second electrode. The insulation layer covers a surface of the substrate. The fuse element is disposed on a portion of the insulation layer. The fuse element includes a first electrode portion, a melting portion, and a second electrode portion, in which the first electrode portion and the second electrode portion are respectively connected to two opposite ends of the melting portion. The protection layer covers the fuse element and the insulation layer, in which the protection layer has a cavity located on the melting portion. The first electrode is electrically connected to the first electrode portion. The second electrode is electrically connected to the second electrode portion.Type: GrantFiled: May 4, 2021Date of Patent: January 31, 2023Assignee: YAGEO CORPORATIONInventors: Shen-Li Hsiao, Hwan-Wen Lee
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Patent number: 11569655Abstract: A power delivery system includes a power sourcing equipment, a powered device and a transmission cable. When the power sourcing equipment is electrically connected to the powered device via the transmission cable, an over-current detecting circuit in the power sourcing equipment is configured to detect over-current occurrence of the powered device. Meanwhile, the power sourcing equipment is configured to determine the functionality of the over-current detecting circuit based on its specific pin and provide single fault protection when the over-current detecting circuit fails.Type: GrantFiled: August 31, 2021Date of Patent: January 31, 2023Assignee: WELTREND SEMICONDUCTOR INC.Inventors: Cheng-Liang Lin, Jeng-Cheng Liu
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Patent number: 11552073Abstract: A semiconductor device includes a main IGBT, a sense, a resistor, a MOSFET and a diode, as main components. The sense IGBT and the main IGBT are connected in parallel with each other. The drain of MOSFET is connected to the gate of the sense IGBT, the source thereof is connected to the gate of the main IGBT, and the gate thereof is connected to the emitter of the sense IGBT and the cathode of diode. One end of the resistor is connected to the gate of the main IGBT and the source of the MOSFET, and the other end of the resistor is connected to the emitter of the main IGBT and the anode of the diode.Type: GrantFiled: November 4, 2021Date of Patent: January 10, 2023Assignee: Mitsubishi Electric CorporationInventors: Sho Tanaka, Tomohide Terashima
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Patent number: 11552072Abstract: A symmetrical layout technique for an electrostatic discharge ESD device and a corresponding power supply network is presented. The ESD device protects an electronic circuit against an overvoltage or overcurrent and contains a first contact area to establish an electrical contact with a first supply rail, a second contact area to establish an electrical contact with a second supply rail, and a third contact area to establish an electrical contact with a third supply rail. The first and third supply rails provide a first supply voltage, and the second supply rail provides a second supply voltage. Within the ESD device, an axis of symmetry passes through the second contact area, and the first contact area and the third contact area are arranged on opposite sides with regard to the axis of symmetry. The symmetrical layout technique allows flipping the orientation of the ESD device with regard to the supply rails.Type: GrantFiled: June 17, 2021Date of Patent: January 10, 2023Assignee: Dialog Semiconductor (UK) LimitedInventor: Marcus Peitz
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Patent number: 11545481Abstract: An electrostatic discharge protection device includes a first well region, a second well region, a first doped region, and a first heavily doped region. The first well region and the second well region are disposed in a semiconductor substrate. The first doped region is disposed in the first well region and the second well region. The first heavily doped region is disposed in the first doped region in the first well region. The first well region and the first doped region have a first conductivity type, and the second well region and the first heavily doped region have a second conductivity type that is the opposite of the first conductivity type.Type: GrantFiled: April 2, 2019Date of Patent: January 3, 2023Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Yeh-Ning Jou, Hsien-Feng Liao, Jia-Rong Yeh
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Patent number: 11539205Abstract: Provided is an inrush current limiter and a system including the same, the inrush current limiter including first and second input nodes for receiving an input voltage from a power source, a first output node and a second output node for being connected with a load, an inrush-current-limiting portion including a transistor connected between the first input node and the first output node, and for turning on the transistor when a voltage level of the input voltage is higher than a first level, and for limiting an inrush current by controlling time until the transistor is turned on after application of the input voltage, a switch connected between a control terminal of the transistor and the second input node, and a mode controller for turning on the switch when the voltage level of the input voltage is lower than a second level that is lower than the first level.Type: GrantFiled: April 13, 2021Date of Patent: December 27, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Keunyoung Kim, Hyun Kim, Jaesoon Park, Sunho Choi
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Patent number: 11539202Abstract: A circuit breaker distribution system is configured to provide selective coordination. The system comprises a solid-state switch disposed as a main or upstream breaker and a switch with an over current protection disposed as a branch or downstream breaker. The microcontroller to: allow repeated pulses of current through to the branch or downstream breaker in an event of an overload or short circuit, choose a maximum current limit for the solid-state switch as a “chop level” such that the chop level is chosen higher than a rated current of the solid-state circuit breaker but low enough that the solid-state switch is not damaged from repeated pulses over a period of time needed to switch OFF the branch or downstream breaker and add a pulse interval after the current chops to zero but before the solid-state circuit breaker returns to an ON state for a next pulse to begin.Type: GrantFiled: August 13, 2021Date of Patent: December 27, 2022Assignee: Siemens Industry, Inc.Inventors: Barry R. Contrael, Jorg Sizemore, James Edward Ferree, Hugh T. Kinsel
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Patent number: 11532932Abstract: A microgrid overcurrent protection device and a method for overcurrent protection of a microgrid. The protection device including a voltage controlled overcurrent detector for detecting an overcurrent above an overcurrent threshold and a phase directional detector arranged for current direction in a downstream or an upstream direction. The overcurrent threshold of the voltage controlled overcurrent detector is set at an upper overcurrent threshold when a measured voltage Vm is above a threshold voltage Vs and set at a lower overcurrent threshold when the measured voltage Vm is below the threshold voltage Vs. The device further includes a timer arranged for generating a trigger signal with a first delay time period when a downstream current direction and an overcurrent are detected and with a second delay time period when an upstream current direction and an overcurrent are detected.Type: GrantFiled: April 4, 2019Date of Patent: December 20, 2022Assignee: Schneider Electric Industries SASInventor: Philippe Alibert
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Patent number: 11532609Abstract: An electrostatic discharge (ESD) device with fast response to high transient currents. The ESD device includes a short-pulse discharge (SPD) path and a long-pulse discharge (LPD) path. The SPD path provides robust response to ESD events, and it triggers a self-bias configuration of the LPD path. Advantageously, the SPD path reduces the risk of ESD voltage overshoot by promptly discharging short-pulse currents, such as a charge device model (CDM) current, whereas the LPD path provides efficient discharge of long-pulse currents, such as a human body model (HBM) current. In one implementation, for example, the SPD path includes a MOS transistor, and the LPD includes a bipolar transistor having a base coupled to the source of the MOS transistor.Type: GrantFiled: December 7, 2020Date of Patent: December 20, 2022Assignee: TEXAS INSTRUMENTS INCORPORATEInventors: Aravind C. Appaswamy, James P. Di Sarro
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Patent number: 11529875Abstract: This disclosure relates to an electrified vehicle configured to disconnect a battery from a load, and a corresponding method. An example electrified vehicle includes an array of battery cells and an electrical conductor connecting the array to a load. A disconnect is arranged along the electrical conductor. Further, the electrified vehicle includes an electronic circuit with a switch and an igniter. When a voltage drop across the electrical conductor exceeds a threshold, the switch is configured to permit current to flow from at least one of the battery cells through the igniter to trigger the disconnect thereby disconnecting the array of battery cells from the load.Type: GrantFiled: September 30, 2021Date of Patent: December 20, 2022Assignee: Ford Global Technologies, LLCInventors: Wesley Edward Burkman, Thomas Joseph Wand
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Patent number: 11527429Abstract: An electrostatic chuck includes a ceramic body and adapter objects. The adapter objects collectively form a plurality of openings distributed over a bottom surface of the ceramic body at different distances from a center of a circle defined by the bottom surface of the ceramic body.Type: GrantFiled: February 25, 2019Date of Patent: December 13, 2022Assignee: Applied Materials, Inc.Inventor: Vijay D. Parkhe
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Patent number: 11527343Abstract: Charging method for a superconductor magnet system with reduced stray field, weight and space includes: arranging the system within a charger magnet bore; with Tmain>Tmaincrit and Tshield>Tshieldcrit, applying a current Icharger to the charger magnet and increasing Icharger to a first current I1>0; lowering a main superconductor bulk magnet temperature Tmain to an operation temperature Tmainop, with Tmainop<Tmaincrit, while keeping Tshield>Tshieldcrit; lowering Icharger to a second current I2<0, thereby inducing a persistent current IPmain in the main magnet; lowering a shield magnet temperature Tshield to an operation temperature Tshieldop, with Tshieldop<Tshieldcrit; increasing Icharger to zero, thereby inducing a persistent current IPshield in the shield magnet; removing the magnet system from the charger bore, and keeping Tmain?Tmainop with Tmainop<Tmaincrit and Tshield?Tshieldop with Tshieldop<Tshieldcrit; where: Tmaincrit: main magnet critical temperature and Tshieldcrit: shieType: GrantFiled: October 30, 2020Date of Patent: December 13, 2022Assignee: BRUKER SWITZERLAND AGInventors: Stephen Alfred March, Joerg Hinderer, Stephan Heiss
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Patent number: 11527882Abstract: Solid state and hybrid circuit protection devices include improved arc-less switching capability and overcurrent protection, improved terminal assemblies and improved thermal management features that reduce or eliminate ignition sources for hazardous environments. The solid state and hybrid circuit protection devices are ignition protected and avoid possible explosions and therefore obviate a need for conventional explosion-proof enclosures to ensure safe operation of an electrical power system in a hazardous location.Type: GrantFiled: December 30, 2021Date of Patent: December 13, 2022Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Joseph Michael Manahan, Adam Ledgerwood, Andrew Butler, Graig DeCarr, Edmund Leubner
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Patent number: 11526185Abstract: A solid-state circuit is presented which may comprise a pass device, a control circuit, and a leakage current compensation circuit. The pass device may have a first terminal, a second terminal and a drive terminal, wherein the first terminal of the pass device is coupled with an input terminal of the solid-state circuit, and wherein the second terminal of the pass device is coupled with an output terminal of the solid-state circuit. The control circuit may be coupled with the drive terminal of the pass device and may be configured to drive the pass device with a driving voltage. The leakage current compensation circuit may be configured to receive a leakage current of the pass device and may be configured to forward said leakage current as a bias current to said control circuit.Type: GrantFiled: October 8, 2020Date of Patent: December 13, 2022Assignee: Dialog Semiconductor (UK) LimitedInventors: Ambreesh Bhattad, Frank Kronmueller