Circuit Interruption By Thermal Sensing Patents (Class 361/103)
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Patent number: 12362675Abstract: An integrated circuit for a power supply circuit. The integrated circuit includes: a first terminal to which a first resistor, a second resistors, and a switch, of the power supply circuit are coupled; a current output circuit outputting a current to the first terminal; a switch control circuit causing the switch to be in a first state or a second state, in which a voltage according to the first resistor or the second resister are respectively applied to the first terminal; a storage circuit; a processing circuit storing an operating condition of the integrated circuit in the storage circuit, based on a first voltage at the first terminal when the switch is in the first state; and a temperature detection circuit detecting a temperature, based on a second voltage at the first terminal when the switch is in the second state.Type: GrantFiled: May 22, 2023Date of Patent: July 15, 2025Assignee: FUJI ELECTRIC CO., LTD.Inventor: Yoshinori Kobayashi
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Patent number: 12327774Abstract: An Integrated Circuit (IC) includes an electronic circuit and a controller. The electronic circuit is designed to operate at temperatures above a specified minimal temperature. The IC has a controllable operational parameter that affects a performance measure of the electronic circuit and an amount of heat produced by the electronic circuit. The controller is configured to control the operational parameter so as to meet both requirements concurrently: (i) exceeding a specified minimal performance level of the performance measure, and (ii) a local temperature of the electronic circuit exceeding the specified minimal temperature.Type: GrantFiled: May 22, 2022Date of Patent: June 10, 2025Assignee: Marvell Asia Pte LtdInventors: Seid Alireza Razavi Majomard, Viswakiran Popuri, David Shen
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Patent number: 12323135Abstract: A circuit may be used as an intelligent semiconductor switch. The circuit includes a high-side power transistor having a load current path coupled between a supply node and an output node, which is configured to provide, during operation, a load current to a load. The circuit further includes a gate driver circuit coupled to a control electrode of the power transistor, and a first stage of an overcurrent protection circuit coupled to the control electrode of the power transistor and configured to drive the control electrode such that a voltage drop across the load current path of the power transistor increases upon detection that the load current has reached a first threshold value. A second stage of the overcurrent protection circuit is coupled to the control electrode of the power transistor and configured to drive the control electrode.Type: GrantFiled: March 13, 2023Date of Patent: June 3, 2025Assignee: Infineon Technologies AGInventors: Paolo Del Croce, Francesco Morandotti
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Patent number: 12318945Abstract: A robot system includes a motor provided at a joint, a regenerative resistor that consumes a back electromotive force generated by rotation of the motor as heat, and a controller configured or programmed to predict a life of the regenerative resistor based on a period of time during which the regenerative resistor is consuming heat.Type: GrantFiled: July 28, 2021Date of Patent: June 3, 2025Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yoshiki Santo, Yasunori Oyama, Jun Kanzaki
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Patent number: 12290935Abstract: A robot system includes a motor provided at a joint, a regenerative resistor that consumes a back electromotive force generated by rotation of the motor as heat, and a controller configured or programmed to predict a life of the regenerative resistor based on a period of time during which the regenerative resistor is consuming heat.Type: GrantFiled: July 28, 2021Date of Patent: May 6, 2025Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yoshiki Santo, Yasunori Oyama, Jun Kanzaki
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Patent number: 12289049Abstract: A power supply control apparatus controls power supply from a DC power source to a load by switching on or off a power supply FET. The current adjustment circuit adjusts the current flowing through the resistor circuit to a value obtained by dividing the voltage between the drain and the source of the power supply FET by the resistance value of the resistor circuit. A drive circuit switches off the power supply FET when a voltage across the detection resistor exceeds a predetermined voltage. The on-resistance value of the power supply FET fluctuates according on the ambient temperature of the power supply FET. The resistance value of the resistor circuit fluctuates in the same direction as the on-resistance value according to the ambient temperature of the power supply FET.Type: GrantFiled: March 15, 2021Date of Patent: April 29, 2025Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Hayaki Murata, Koki Sakakibara, Ryohei Sawada, Shunichi Sawano, Kota Oda
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Patent number: 12254916Abstract: The memory device of the disclosure includes a fuse voltage generator, a fuse storage and a logic circuit. The fuse voltage generator generates a fuse voltage in response to an enable signal having a first logic level, and stop generating the fuse voltage in response to the enable signal having a second logic level. The fuse storage storages a setting data of the memory device. The fuse storage outputs the setting data in response to the fuse voltage. The logic circuit generates the enable signal in response to at least two operating signals.Type: GrantFiled: December 9, 2022Date of Patent: March 18, 2025Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Chih-Jen Chen
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Patent number: 12199374Abstract: There are provided a connector and a mounting structure, the connector including: a terminal fitting; an electric wire connected to the terminal fitting; a housing that includes a fitting portion having a shape protruding in a fitting direction with a mating part and accommodating the terminal fitting, an outer wall portion defining an internal space in which the electric wire is routed, and a hollow convex portion formed by a part of the outer wall portion protruding outward to have a convex shape in the fitting direction; and a fuse that includes a fused portion accommodated in a hollow portion of the convex portion and is connected to the electric wire.Type: GrantFiled: October 14, 2022Date of Patent: January 14, 2025Assignee: YAZAKI CORPORATIONInventors: Tsuyoshi Hamai, Takatoshi Suzuki, Junya Yamamoto
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Patent number: 12199525Abstract: In an inverter that includes a smoothing capacitor and a plurality of power modules, the smoothing capacitor includes a plurality of columnar unit capacitors each having electrodes at both ends thereof, a one-end-side bus plate connected to the electrode at one end of each unit capacitor, and an other-end-side bus plate connected to the electrode at the other end of the unit capacitor. The unit capacitors are arranged, with axes thereof parallel to each other, side by side in a direction perpendicular to the axes. The plurality of power modules is arranged, with respect to the smoothing capacitor, side by side in a direction perpendicular to the axes of the unit capacitors.Type: GrantFiled: October 20, 2022Date of Patent: January 14, 2025Assignees: MAZDA MOTOR CORPORATION, ROHM CO., LTD.Inventors: Takayuki Sato, Masashi Hayashiguchi
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Patent number: 12188786Abstract: Smart labels, methods of operating smart labels, and associated contexts in which such smart labels may be used are disclosed. The smart label, for use in conjunction with consumer product packaging, comprises an energy harvester to capture ambient energy to provide a source of electrical energy and electronic circuitry powered by the electrical energy. A fuse provides an electrical connection between the energy harvester and the electronic circuitry and destruction of the fuse permanently disconnects the energy harvester from the electronic circuitry. Unnecessary continued operation of the electronic circuitry powered by the energy harvester can therefore be prevented, for example when the consumer product packaging is disposed of or recycled, which may be an undesirable heat source. Smart labelling, and a connected network of smart bins which can read the smart labelling, may also be used to promote consumer recycling of consumer product packaging.Type: GrantFiled: March 12, 2020Date of Patent: January 7, 2025Assignee: Arm LimitedInventors: Emre Özer, Parameshwarappa Anand Kumar Savanth, Jedrzej Kufel
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Patent number: 12163845Abstract: A semiconductor includes a multilayer substrate including an insulating plate and a plurality of circuit boards disposed on a top face of the insulating plate, a semiconductor element disposed on a top face of one of the plurality of circuit boards, and having a main electrode disposed on a top face thereof, and a temperature measurement device for measuring a temperature of the semiconductor element. The temperature measurement device includes a cable unit composed of an insulated optical fiber, and a temperature measurement unit provided on one end of the cable unit, the temperature measurement unit being bonded to the main electrode of the semiconductor element using a bonding material.Type: GrantFiled: January 4, 2022Date of Patent: December 10, 2024Assignee: FUJI ELECTRIC CO., LTD.Inventor: Shinichi Masuda
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Patent number: 12147210Abstract: An electrical safety device is described which includes a socket arranged to receive an electrical plug of an electrical appliance to connect a current supply to the electrical appliance, a thermal sensor arranged to detect the surface temperature of an electrical plug when received in the socket and a processor in communication with the thermal sensor, the processor configured to determine when the sensed surface temperature exceeds a predetermined threshold. The invention also includes an electrical safety system comprising the electrical safety device configured to communicate with a remote device. The device and system provide early detection of electrical faults and hazards to reduce the risk of fires.Type: GrantFiled: September 7, 2022Date of Patent: November 19, 2024Assignee: Connected Innovations LimitedInventor: Anthony D. Parfitt
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Patent number: 12136806Abstract: Methods and apparatus are disclosed for battery current monitoring. An example apparatus includes a haptic device, an isolation switch to deliver power from a battery to the haptic device, an integrator to integrate a signal based on a current from the battery to the haptic device to generate an integrator output, and control logic to control the isolation switch based on a comparison of the integrator output to a threshold.Type: GrantFiled: February 12, 2024Date of Patent: November 5, 2024Assignee: Tahoe Research, Ltd.Inventors: Devin Cass, Jorge Zabaco, George D. Beckstein, III
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Patent number: 12131849Abstract: A flat spring (100) is disclosed, for use in a surge protection device (SPD) such as a fast activation thermal fuse, to be integrated with a thermal metal oxide varistor (TMOV). The flat spring (100) has a V-shaped protrusion (110) to enable ultra-high short circuit current protection under overvoltage condition.Type: GrantFiled: May 11, 2020Date of Patent: October 29, 2024Assignee: Dongguan Littelfuse Electronics Company LimitedInventors: Long Min, Libing Lu, Dongjian Song
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Patent number: 12107569Abstract: A semiconductor device including: an output element connected to a load and configured to perform switching to operate the load; a drive circuit configured to output a drive signal to thereby cause the output element to perform the switching; an external terminal configured to be connected to a constant current source that is external to the semiconductor device, and to receive a constant current from the constant current source; a temperature sensor connected to the external terminal, and configured to operate with the constant current, detect a temperature of the output element, and output a temperature detection value; a temperature state detection circuit configured to output a temperature state of the output element, based on a result of comparing the temperature detection value with a reference threshold; and an abnormal level notification circuit configured to send out a notification upon determining that the temperature state is at an abnormal level.Type: GrantFiled: March 28, 2023Date of Patent: October 1, 2024Assignee: FUJI ELECTRIC CO., LTD.Inventor: Naoki Shimizu
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Patent number: 12103277Abstract: A shock absorbing laminate includes: a shock absorbing layer having an adhesive property and a stress relieving property; a heat diffusion layer having a thermal diffusive property, and a shield layer having electromagnetic interference shielding characteristics. The shock absorbing layer, the heat diffusion layer, and the shield layer are stacked on one another. The shock absorbing laminate which has heat dissipation characteristics and electromagnetic interference shielding characteristics and which can be affixed to another member without using the adhesive layer can be provided.Type: GrantFiled: January 27, 2020Date of Patent: October 1, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tadatoshi Nakanishi, Kakeru Hanabusa, Motoi Kawamura, Muneo Yamada
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Patent number: 12100610Abstract: An electrostatic chuck includes a ceramic dielectric substrate, a base plate, a bonding part, a gas inlet path, a counterbore part, a ceramic porous part, and an elastic body. The base plate supports the ceramic dielectric substrate. The bonding part is located between the ceramic dielectric substrate and the base plate. The gas inlet path extends through the ceramic dielectric substrate, the base plate, and the bonding part. The gas inlet path includes a first hole part, a second hole part and a third hole part. The first hole part is positioned at the ceramic dielectric substrate. The third hole part is positioned at the bonding part. The counterbore part is located in the first hole part. The ceramic porous part is located in the counterbore part. The elastic body faces an end part of the bonding part at the third hole part side.Type: GrantFiled: August 29, 2022Date of Patent: September 24, 2024Assignee: Toto Ltd.Inventors: Yuki Sasaki, Jun Shiraishi, Yutaka Momiyama, Reo Kawano
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Patent number: 12099236Abstract: An optical subassembly includes a planar dielectric waveguide structure that is deposited at temperatures below 400 C. The waveguide provides low film stress and low optical signal loss. Optical and electrical devices mounted onto the subassembly are aligned to planar optical waveguides using alignment marks and stops. Optical signals are delivered to the submount assembly via optical fibers. The dielectric stack structure used to fabricate the waveguide provides cavity walls that produce a cavity, within which optical, optoelectronic, and electronic devices can be mounted. The dielectric stack is deposited on an interconnect layer on a substrate, and the intermetal dielectric can contain thermally conductive dielectric layers to provide pathways for heat dissipation from heat generating optoelectronic devices such as lasers.Type: GrantFiled: August 22, 2022Date of Patent: September 24, 2024Assignee: POET Technologies, Inc.Inventors: Suresh Venkatesan, Yee Loy Lam
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Patent number: 12095355Abstract: A power supply circuit includes a transistor having a drain connected to an input voltage, a gate, and a source; a diode; a choke coil; a capacitor; a transformer; a control circuit that provides a drive signal for turning on and off the transistor to a primary winding of the transformer based on an output voltage; an overvoltage detection circuit that outputs an overvoltage signal when the output voltage is an overvoltage; and a short circuit that short-circuits the gate and the source of the transistor in response to the overvoltage signal.Type: GrantFiled: December 16, 2020Date of Patent: September 17, 2024Assignee: OMRON CORPORATIONInventors: Kohei Tanino, Masaaki Nagano, Tomonori Watanabe
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Patent number: 12092528Abstract: Monitors are for pressurized systems are described. These may include batteryless monitors that run on power harvested from their environments.Type: GrantFiled: June 22, 2021Date of Patent: September 17, 2024Assignee: Everactive, Inc.Inventors: Jude Lee, Gerardo Gonzalez Huerta
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Patent number: 12095255Abstract: Overcurrent protection of an electrically powered, motorized device, such as a power tool, wherein the tool includes a tool housing, an output assembly, a trigger, an electrical safety device, a motor, an indicator, a controller, and a power source. The electrical safety device, for example a fuse, is disposed in series with a power connection from the power source to the controller. The controller measures current passing through the electrical safety device in time intervals when the trigger is actuated. The controller determines accumulated thermal energy passing through the electrical safety device, and compares the accumulated thermal energy to a threshold. If the accumulated thermal energy exceeds the threshold, the controller ceases or discontinues to allow power to be provided to the motor from the power source, thereby shutting off the motor. The controller may also activate the indicator to indicate a fault to the user.Type: GrantFiled: March 14, 2022Date of Patent: September 17, 2024Assignee: Snap-on IncorporatedInventors: Michael T. Rajzer, Jason Genz, Christoffer S. Fox
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Patent number: 12088285Abstract: A method provides thermal protection for an IC device that has multiple components. For each component, temperatures are sensed, each of which associated with a different area of the respective component and a respective temperature sense signal is output indicative of the highest sensed temperature of the respective component. For each of the components, the respective temperature sense output signal is sampled to produce a sequence of discrete sampled temperature values. A sequence of differences between a reference temperature value and each of the discrete sample temperatures is integrated over time to compute, for each of the components, a respective integration output. The respective integration output computed for each of the switches is compared to a threshold value. An action related to the thermal protection function is initiated upon the integration output of an affected component exceeding the threshold value.Type: GrantFiled: December 13, 2021Date of Patent: September 10, 2024Assignee: Microchip Technology Inc.Inventors: Tamir Langer, Migel Jacubovski
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Patent number: 12086294Abstract: A voltage attack detection circuit includes: at least one voltage regulation circuit, where the at least one voltage regulation circuit is connected to an external supply respectively, the at least one voltage regulation circuit is configured to convert the external supply to at least one internal supply, and the at least one internal supply is configured to output at least one first voltage respectively; at least one voltage sensor, where the at least one voltage sensor is connected to the at least one internal supply respectively, so as to receive the at least one first voltage respectively, each voltage sensor of the at least one voltage sensor is configured to output a reference voltage based on a received reference voltage and a received first voltage, the reference voltage is configured to indicate whether a received first voltage is within a present voltage range.Type: GrantFiled: September 30, 2021Date of Patent: September 10, 2024Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Jiang Yang, Jianfeng Xue
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Patent number: 12074014Abstract: An electrostatic chuck includes a ceramic dielectric substrate, a base plate, a bonding part, a gas inlet path, a counterbore part, and a ceramic porous part. The bonding part is located between the ceramic dielectric substrate and the base plate. The gas inlet path extends through the ceramic dielectric substrate, the base plate, and the bonding part. The gas inlet path includes a first hole part, a second hole part, and a third hole part. The first hole part is positioned at the ceramic dielectric substrate. The second hole part is positioned at the base plate. The third hole part is positioned at the bonding part. The counterbore part is located in at least one of the first hole part or the second hole part. The ceramic porous part is located in the counterbore part. The ceramic porous part includes an exposed surface exposed in the third hole part.Type: GrantFiled: August 29, 2022Date of Patent: August 27, 2024Assignee: Toto Ltd.Inventors: Yuki Sasaki, Jun Shiraishi, Yutaka Momiyama, Reo Kawano
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Patent number: 12074513Abstract: A power conversion device includes: semiconductor switching elements; a housing on which the semiconductor switching elements are fixed; a circuit board on which a driving circuit for driving the semiconductor switching elements is mounted and which is located opposite to and spaced apart from a fixing surface; insertion guides which are disposed on an opposing surface of the circuit board relative to the fixing surface; and elongated terminal extension members each having a length that is matched with a height of a pulse transformer, one ends of which are bonded to respective lead terminals, and the other ends of which extend toward the insertion guides; wherein the pulse transformer is disposed on the opposing surface so as to be opposite to major surfaces of the semiconductor switching elements.Type: GrantFiled: December 29, 2021Date of Patent: August 27, 2024Assignee: Mitsubishi Electric CorporationInventor: Yusuke Tsubaki
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Patent number: 12061456Abstract: An electrical safety device is described which includes a socket arranged to receive an electrical plug of an electrical appliance to connect a current supply to the electrical appliance, a thermal sensor arranged to detect the surface temperature of an electrical plug when received in the socket and a processor in communication with the thermal sensor, the processor configured to determine when the sensed surface temperature exceeds a predetermined threshold. The invention also includes an electrical safety system comprising the electrical safety device configured to communicate with a remote device. The device and system provide early detection of electrical faults and hazards to reduce the risk of fires.Type: GrantFiled: July 16, 2019Date of Patent: August 13, 2024Assignee: Connected Innovations LimitedInventor: Anthony D. Parfitt
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Patent number: 12048479Abstract: In one embodiment, a medical system includes a catheter configured to be inserted into a body part of a living subject, and including an elongated deflectable element including a distal end, a proximal coupler connected to the distal end, an expandable assembly comprising a plurality of flexible polymer circuit strips, the flexible polymer circuit strips having respective proximal ends connected to, and disposed circumferentially around, the proximal coupler, respective ones of the flexible polymer circuit strips including respective multiple strip electrodes, respective contact arrays disposed at the respective proximal ends, and respective multiple circuit traces electrically connecting the respective multiple strip electrodes with the respective contact arrays, and a plurality of surface mountable electrodes mounted on, and bulging over respective ones of the flexible polymer circuit strips.Type: GrantFiled: October 27, 2020Date of Patent: July 30, 2024Assignee: Biosense Webster (Israel) Ltd.Inventors: Assaf Govari, Christopher Thomas Beeckler, Joseph Thomas Keyes, Kevin Justin Herrera
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Patent number: 12009244Abstract: Implementations described herein provide a substrate support assembly which enables both lateral and azimuthal tuning of the heat transfer between an electrostatic chuck and a heating assembly. The substrate support assembly comprises a body having a substrate support surface and a lower surface, one or more main resistive heaters disposed in the body, a plurality of spatially tunable heaters disposed in the body, and a spatially tunable heater controller coupled to the plurality of spatially tunable heaters, the spatially tunable heater controller configured to independently control an output one of the plurality of spatially tunable heaters relative to another of the plurality of spatially tunable heaters.Type: GrantFiled: January 13, 2020Date of Patent: June 11, 2024Assignee: Applied Materials, Inc.Inventors: Vijay D. Parkhe, Steven E. Babayan, Konstantin Makhratchev, Zhiqiang Guo, Phillip R. Sommer, Dan A. Marohl
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Patent number: 12007419Abstract: A power quality monitor (PQM) module includes a solid-state semi-conductor switch having a voltage input, two signal inputs and two voltage outputs. A voltage input line is electrically connected to the voltage input. A PQM signal input line is operatively connected to at least one of the two signal inputs. A voltage output line is electrically connected to one of the two voltage outputs to provide power to a load. A method of controlling a GCB includes opening a solid-state semi-conductor switch when a PQM signal is powered at a first logic voltage. The method includes closing the solid-state semi-conductor switch when a PQM signal is powered at a second logic voltage lower than the first logic voltage to allow a voltage from a GCU to go to the GCB.Type: GrantFiled: April 20, 2021Date of Patent: June 11, 2024Assignee: Hamilton Sundstrand CorporationInventors: Hemanth Kumar Pennam, Adrian E. Vandergrift
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Patent number: 11980977Abstract: Systems, methods, and apparatus to control weld current in a preheating system are disclosed. An example preheating power supply includes power conversion circuitry configured to output welding-type power via a first output power connector and a second output power connector, and a bypass path prevention circuit configured to prevent less than a threshold voltage applied to the first output power connector and the second output power connector from a different power supply from causing current to flow between the first output power connector and the second output power connector.Type: GrantFiled: November 10, 2022Date of Patent: May 14, 2024Assignee: Illinois Tool Works Inc.Inventors: Quinn William Schartner, James Lee Uecker
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Patent number: 11984275Abstract: An electrical mains plug having a body formed of an electrically insulating material is described. Two contact pins are arranged parallel to one another and which project out of the body at a first side thereof, and inside the body are connected or can be connected in each case to an electrical conductor which leads out or can be led out of the body at a second side thereof. The thermal bimetallic element is provided as a temperature sensor, said thermal bimetallic element being a constituent part of the thermal bimetallic switch which is associated with at least one of two contact pins. An electrical connection cable suitable therefor and an electrical device connected thereto are also described.Type: GrantFiled: October 2, 2018Date of Patent: May 14, 2024Assignee: TMC SENSORTECHNIK GMBHInventors: Bruno Gengenbach, Michael Bucher
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Patent number: 11979082Abstract: One example includes a power supply system. The system includes a power switch configured to activate via a control voltage responsive to a first state of an activation signal to conduct current from a power rail to a switching terminal. The system further includes a power switch deactivation driver configured to control an amplitude of the control voltage responsive to a second state of the activation signal based on a voltage difference between the power rail and the switching terminal to provide for a variable rate of deactivation of the power switch.Type: GrantFiled: March 30, 2022Date of Patent: May 7, 2024Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Connie Jiang
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Patent number: 11945327Abstract: A charging control device (1A) according to the present invention includes a determination part that determines whether or not an abnormality in input power occurs on the basis of input power information on the input power and a predetermined determination threshold value. The determination part makes the determination on the basis of the input power information when a predetermined time has passed after an input of the input power.Type: GrantFiled: August 16, 2019Date of Patent: April 2, 2024Assignee: Komatsu Ltd.Inventors: Takashi Hirota, Makoto Hasegawa, Ryouta Kaneko, Fuyuhiko Mizuno, Takao Nagano
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Patent number: 11942830Abstract: An electric motor monitor having at least one sensor in electrical communication with a memory device and a motor. The memory device is configured to establish a performance baseline of the motor throughout its workload. The signal processing incorporates a memory device such as a microcomputer and/or a programmable logic controller configured to determine the work being performed by the motor by comparing the baseline performance of the motor throughout its work load to at least, the armature amperage of the motor. A wireless system transmits an operating motor's work parameters including, but not limited to, amperage, temperature, vibration, sound, rotation, power, moisture and/or voltage data, to a mobile or fixed base receiver. Data is accessible and viewable in real time. Alerts based on user-defined thresholds of the sensors are sent to an electronic device such as a tablet, a computer, and/or a smart phone.Type: GrantFiled: August 10, 2022Date of Patent: March 26, 2024Inventor: Charles Douglas Eidschun
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Patent number: 11940334Abstract: In a power supply control device, a temperature calculation circuit calculates a wire temperature of a wire based on the current value of a current flowing through the wire. If the wire temperature calculated by the temperature calculation circuit is lower than a temperature threshold value, a drive unit switches on or off a switch in accordance with content indicated by a control signal output by a communication unit. When the wire temperature calculated by the temperature calculation circuit rises to the temperature threshold value or higher, the drive unit switches off the switch independently of content indicated by a control signal output by the communication unit.Type: GrantFiled: August 23, 2019Date of Patent: March 26, 2024Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Shunichi Sawano, Masayuki Kato, Shinnosuke Nakaguchi
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Patent number: 11936370Abstract: A protection device is capable of protecting a load drive system at an appropriate timing according to a temperature of a power semiconductor. The protection device includes: a capacitor configured to output a voltage according to a charge accumulated by a first current; and a protection circuit configured to: (i) determine whether or not the voltage output by the capacitor exceeds a certain threshold value; (ii) generate a second current having a magnitude according to information related to the temperature of the power semiconductor which drives a load; and (iii) change a magnitude of the first current based on the second current.Type: GrantFiled: May 12, 2022Date of Patent: March 19, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yusuke Yoshino, Takashi Nakagami, Ryo Iida
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Patent number: 11923163Abstract: A fuse element for a fuse with an integrated measurement function, includes a first receiving area in an embodiment, for receiving a melting conductor of the fuse, delimited in the length direction of the fuse by a closure element and in a direction orthogonal to the length direction by the fuse element. Further, in an embodiment, the fuse element has a second receiving area, physically separated from the first receiving area, for receiving a measuring device of the fuse. The second receiving area is designed to receive the measuring device in a wall section of the fuse element. The second receiving area formed in the fuse element protects the measuring device arranged therein against interfering environmental influences. The measuring device is used to ascertain the electric current flowing through the fuse directly on the fuse.Type: GrantFiled: December 3, 2019Date of Patent: March 5, 2024Assignee: Siemens AktiengesellschaftInventors: Thomas Hochmuth, Robert Huettinger, Jean-Mary Martel, Christian Rohrwild, Adolf Schmid, Volker Seefeld
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Patent number: 11898917Abstract: In a method for monitoring a winding temperature of a winding of an electric machine powered by a converter, a heating power applied to the winding of the electric machine is determined and evaluated using a thermal model. A relative increase in a resistance of the winding, when the winding heats up, is determined from the heating power in comparison with a standard reference value for 20° C. winding temperature. The winding temperature is calculated from the relative increase in the resistance, and a warning signal and/or a switch-off signal is generated when a critical winding temperature value is exceeded.Type: GrantFiled: August 4, 2021Date of Patent: February 13, 2024Assignee: Siemens AktiengesellschaftInventors: Zeljko Jajtic, Peter Sachsenhauser, Jürgen Böhling, Tobias Taubald, Christian Volmert
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Patent number: 11881705Abstract: In a power distribution device, a current detection circuit detects a current value of a current flowing through a wire. When a switch is on, a microcomputer determines whether or not a predetermined condition is satisfied, based on the current value detected by the current detection circuit. If it is determined by the microcomputer that the predetermined condition is satisfied, a drive circuit turns off the switch.Type: GrantFiled: September 30, 2019Date of Patent: January 23, 2024Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Shunichi Sawano, Masayuki Kato
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Patent number: 11882669Abstract: A computational heat dissipation structure includes a circuit board including a plurality of heating components; and a radiator provided corresponding to the circuit board; wherein a space between the adjacent heating components is negatively correlated with heat dissipation efficiency of a region where the adjacent heating components are located. Since the space between the adjacent heating components of the disclosure is negatively correlated with the heat dissipation efficiency of the region where the adjacent heating components are located, i.e., the higher the heat dissipation efficiency of the region where the adjacent heating components are located is, the smaller the space between the adjacent heating components in the region will be, the heat dissipation efficiencies corresponding to the heating components are balanced, and load of a fan is reduced.Type: GrantFiled: April 17, 2023Date of Patent: January 23, 2024Assignee: Canaan Creative Co., LTD.Inventors: Ning Zhang, Nangeng Zhang
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Patent number: 11862963Abstract: Described is a method including monitoring a point of regulation voltage input to a generator control unit and monitoring a generator output voltage as a backup point of regulation voltage input. The method also includes detecting an overvoltage fault at the point of regulation voltage input, the backup point of regulation voltage input, or both. Additionally, the method includes opening a first solid-state switch (110) in response to detecting the overvoltage fault. Opening the first solid-state switch (110) prevents provision of an input signal (104) to a generator excitation field (102). Further, the method includes opening a generator excitation field relay (112) in response to detecting the overvoltage fault. Opening the excitation field relay (112) also prevents provision of the input signal (104) to the generator excitation field (102).Type: GrantFiled: November 30, 2018Date of Patent: January 2, 2024Assignee: Safran Power USA, LLCInventors: Lev Sorkin, Priyanka D. Shivthare
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Patent number: 11843326Abstract: An object of the present invention is to provide a power converter capable of preventing upsizing of a chip on which a switching element is formed and detecting the temperature in a switching operation of the switching element. A power converter includes: an IGBT connected between an IGBT connected to the positive electrode side of a variable power supply and the negative electrode side of the variable power supply; a temperature detection resistor element connected to a gate to which a gate signal for controlling the switching operation of the IGBT is input and detecting the temperature of the IGBT; and a detector detecting the temperature level of the IGBT based on the voltage of the gate.Type: GrantFiled: December 27, 2021Date of Patent: December 12, 2023Assignee: FUJI ELECTRIC CO., LTD.Inventor: Takeshi Kamimura
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Patent number: 11824474Abstract: System and methods for motor drive electronics are provided. Aspects include receiving, by a controller on a motor driver electronics (MDE) component, voltage data associated with a thermoelectric generator, wherein the MDE component is configured to operate an electric motor, and wherein the MDE component comprises a power card including one or more components, determining a temperature reading based on the voltage data, enacting an action associated with the MDE component based at least in part on the temperature reading.Type: GrantFiled: January 19, 2021Date of Patent: November 21, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Ashish Vijay, Anil Prasad Josyula, Harish Venkatesha, Somasekhar Valleru
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Patent number: 11817693Abstract: Systems and methods for providing information about thermal overload conditions and near-miss tripping events in a circuit interrupter are disclosed. The systems and methods provide a user with detailed information about thermal overload and near-miss tripping events, including how much time remains until a trip will be initiated due to a thermal overload, and what the real-time thermal capacity of the circuit interrupter is after a thermal overload condition ends.Type: GrantFiled: October 29, 2021Date of Patent: November 14, 2023Assignee: EATON INTELLIGENT POWER LIMITEDInventors: Daniel A. Hosko, James L Lagree, Donald T. McComas
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Patent number: 11817694Abstract: To provide a protection element and a protection circuit that can protect from an overcurrent without using rectifying means such as a diode or a switching element, and can more reliably interrupt passage of an electric current during operation with a simpler circuit configuration. A protection element including: an insulating substrate; at least a pair of fuse electrodes provided on the insulating substrate; an intermediate electrode provided on the insulating substrate between the fuse electrodes; a fuse element joined to the fuse electrodes and the intermediate electrode, and electrically connected to the fuse electrodes and the intermediate electrode; and a heating element provided on the insulating substrate to be electrically connected to the intermediate electrode and a heating electrode, wherein conduction means between at least a pair of electrodes of the fuse electrodes including the intermediate electrode is provided differently from conduction means between the other electrodes.Type: GrantFiled: September 25, 2019Date of Patent: November 14, 2023Assignee: Schott Japan CorporationInventor: Shintaro Nakajima
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Patent number: 11806990Abstract: In some examples, a system can include: a heating device, a Proportional Integral Derivative (PID) controller and a switching mechanism to selectively enable transmission of signals to the heating device based on a real time temperature in proximity to the heating device, wherein the PID controller is to continuously output pulse width modulation (PWM) signals independent of selective transmission of signals by the switching mechanism.Type: GrantFiled: December 21, 2018Date of Patent: November 7, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Daniel James Magnusson, Robert Yraceburu, Timothy Jacob Luedeman
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Patent number: 11800604Abstract: An example system for controlling heating of a workpiece includes: an interface configured to receive a target temperature (TT) for the workpiece; a processor configured to: select a current temperature (TS) for the workpiece based on monitoring one or more temperature sensors; and set a control temperature (TC) based on the received target temperature and TS; and a control system configured to: control heating of the workpiece via a heating device until the workpiece reaches TC as measured by at least one of the one or more temperature sensors, and controlling the heating device to stop heating the workpiece in response to the workpiece reaching TC; wherein: the processor is configured to characterize a temperature ramp rate based on a measured temperature overshoot at the workpiece after turning off the heating device; and the control system is configured to control heating of the workpiece to TT by controlling the heating device based on the temperature ramp rate.Type: GrantFiled: February 15, 2021Date of Patent: October 24, 2023Assignee: Illinois Tool Works Inc.Inventors: Dylan Anderson, Peter Mehn
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Patent number: 11774296Abstract: A method and device for temperature monitoring of a power transistor formed in a semiconductor die comprising are disclosed. A side of a temperature-sensing resistor disposed in the semiconductor die is coupled to a voltage input side of the power transistor. A controller coupled to a second side of the temperature-sensing resistor is configured to detect a voltage across the resistor and trigger a temperature related corrective action using the detected voltage.Type: GrantFiled: November 11, 2021Date of Patent: October 3, 2023Assignee: ALPHA AND OMEGA SEMICONDUCTOR INTERNATIONAL LPInventors: Zhenyu Wang, Jian Yin, Lingpeng Guan, Sitthipong Angkititrakul, Christopher Ben Bartholomeusz, Xiaobin Wang
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Patent number: 11742656Abstract: A surge protection device with a high breaking capacity includes a housing with at least two lead-out electrodes, and a voltage limiting device and a thermal tripping mechanism that are installed in the housing. The voltage limiting device includes a voltage limiter, a first electrode and a second electrode that are positioned and installed in an insulating cover. The thermal tripping mechanism includes a fixed assembly, a movable assembly and a thermal trigger device. The fixed assembly and the movable assembly form a plurality of displacement switches arranged in series. The thermal trigger device is disposed in linkage with the movable assembly and includes a metal trigger sheet, a fusible alloy and an energy storage member. One end of the metal trigger sheet is fixed on the movable assembly, and the other end of the metal trigger sheet is fixed on the second electrode through welding by the fusible alloy.Type: GrantFiled: July 6, 2020Date of Patent: August 29, 2023Assignee: XIAMEN SET ELECTRONICS CO., LTD.Inventors: Xianggui Zhang, Tian'an Gao
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Patent number: 11736000Abstract: A power converter including a control circuit configured to output a control signal, and a semiconductor module. The semiconductor module includes a semiconductor chip, a switching device provided on the semiconductor chip, the switching device being configured to be turned on and off in response to the control signal, and a first temperature sensor configured to detect a temperature of the semiconductor chip. The control circuit is configured to monitor a thermal resistance of the semiconductor module based on a first temperature detected by the first temperature sensor, a second temperature corresponding to a temperature of the semiconductor module, and a power consumption of the switching device.Type: GrantFiled: April 22, 2021Date of Patent: August 22, 2023Assignee: FUJI ELECTRIC CO., LTD.Inventor: Haruhiko Nishio