With Specific Current Responsive Fault Sensor Patents (Class 361/93.1)
  • Patent number: 10848143
    Abstract: According to one embodiment, there is provided a semiconductor integrated circuit including a first switch transistor, a first reference transistor, a differential amplifier circuit, and a current source. The first switch transistor is electrically connected between a first node on an input terminal side and a second node on an output terminal side. The first reference transistor is electrically connected between the first node and a third node. The differential amplifier circuit has a first input terminal electrically connected to the second node, a second input terminal electrically connected to the third node, and an output terminal electrically connected to a gate of the first switch transistor and a gate of the first reference transistor. The current source is electrically connected between the third node and a reference potential. The first reference transistor has dimensions smaller than dimensions of the first switch transistor.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: November 24, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventor: Naotaka Koide
  • Patent number: 10825937
    Abstract: The disclosure relates to a protective circuit for a photovoltaic (PV) module that includes an input having two input terminals for connecting the PV module, an output having two output terminals for connecting further PV modules of a series circuit comprising PV modules, a first switch for connecting one of the input terminals to one of the output terminals, and a controller configured to control the first switch, wherein the protective circuit further includes a series circuit including a first diode and an energy store, wherein the series circuit is arranged in parallel with the input of the protective circuit. The protective circuit also includes a second diode, which connects an output terminal of the protective circuit to a midpoint of the series circuit including the first diode and the energy store, and wherein a series circuit including the second diode and the energy store is connected in parallel with the first switch.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: November 3, 2020
    Assignee: SMA Solar Technology AG
    Inventors: Markus Hopf, Burkard Mueller
  • Patent number: 10804012
    Abstract: A composite circuit protection device includes a positive temperature coefficient (PTC) component, a voltage-dependent resistor, a first conductive lead and a second conductive lead. The PTC component includes a PTC polymeric layer, and first and second electrode layers respectively disposed on two opposite surfaces of the PTC polymeric layer. The voltage-dependent resistor is connected to the second electrode layer of the PTC component. The first and second conductive leads are respectively bonded to the first electrode layer of the PTC component and the voltage-dependent resistor. The PTC component has a rated voltage ranging between 40% and 200% of a varistor voltage of the voltage-dependent resistor.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: October 13, 2020
    Assignee: FUZETEC TECHNOLOGY CO., LTD.
    Inventors: Jack Jih-Sang Chen, Chang-Hung Jiang
  • Patent number: 10790657
    Abstract: In order both to accommodate instantaneous current as well as overcurrent protection in accordance with the load, an overcurrent protection circuit has: a threshold value generation unit that, in accordance with a threshold value control signal, switches between setting an overcurrent detection threshold value to a first set value (? Iref) and a second set value (? Iset) lower than the first set value; an overcurrent detection unit that compares a sense signal in accordance with the current being monitored and the overcurrent detection value and generates an overcurrent protection signal; a reference value generation unit that generates a reference value (? Iset) in accordance with the seconds set value; a comparison unit that compares the sense signal and the reference value, and generates a comparison signal; and a threshold value control unit that monitors the comparison signal, and generates a threshold value control signal.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: September 29, 2020
    Assignee: Rohm Co., Ltd.
    Inventors: Toru Takuma, Naoki Takahashi, Shuntaro Takahashi
  • Patent number: 10770241
    Abstract: A high speed arc suppressor and method include a first phase-specific arc suppressor configured to suppress arcing across contacts of the power contactor in a positive domain and a second phase-specific arc suppressor configured to suppress arcing across the contacts in a negative domain. First and second high speed switches are configured to enable and disable operation of an associated one of the first and second phase-specific arc suppressors. First and second drivers are configured to drive the first and second high speed switches.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: September 8, 2020
    Assignee: Arc Suppression Technologies
    Inventors: Reinhold Henke, Warren Kahle
  • Patent number: 10742023
    Abstract: An object is to provide an air conditioner that can prevent malfunctions due to an inrush current, where the air conditioner includes an inrush-current prevention resistor that prevents inflow of an inrush current from an AC power supply, a relay-a operation unit as a first relay that is serially connected to the inrush-current prevention resistor, a relay-b operation unit as a second relay that is connected in parallel to the inrush-current prevention resistor and the relay-a operation unit as the first relay, an indoor control unit that controls ON and OFF of the relay-a operation unit as the first relay, and an outdoor control unit that controls ON and OFF of the relay-b operation unit as the second relay. When power is being supplied from the AC power supply via the relay-a operation unit as the first relay, the outdoor control unit turns ON the relay-b operation unit as the second relay.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: August 11, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenta Sakurai, Hiroaki Suzuki
  • Patent number: 10720768
    Abstract: An electronic circuit breaker having a control unit and a controllable semiconductor switch which is connected in a current path between a voltage input and a load output, wherein the semiconductor switch is integrated into a voltage-controlled current source circuit, the output current of said current source circuit when the load is connected being adjusted by means of the control unit in such a way that the power of the semiconductor switch is lower than or equal to a maximum power value, and wherein the control unit outputs a setpoint value to the voltage-controlled current source circuit and receives a difference value from said voltage-controlled current source circuit, which difference value is formed from a deviation of an actual value, which represents the output current, from the setpoint value and is supplied to the semiconductor switch as a control signal for driving said semiconductor switch.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: July 21, 2020
    Assignee: Ellenberger & Poensgen GmbH
    Inventor: Diego Fernando Asanza Maldonado
  • Patent number: 10700514
    Abstract: A DC electrical network comprising DC terminals operatively connectable to a converter; and DC transmission paths arranged to interconnect the DC terminals, and including a DC power transmission medium and a switching apparatus. The DC network further including: an active power electronic device connected in at the DC transmission paths, the active power electronic device; a detector configured to detect faults in the DC transmission paths; and a control unit programmed to operate the active power electronic device to vary an apparent impedance of a faulty DC transmission path to force a current flowing in the faulty DC transmission path to reduce to a target current level, and operate the switching apparatus to block current from flowing in the faulty DC transmission path when the current flowing in the faulty corresponding DC transmission path is reduced to the target current level.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: June 30, 2020
    Assignee: General Electric Technology GmbH
    Inventors: Robert Stephen Whitehouse, Carl David Barker
  • Patent number: 10693291
    Abstract: A method for operating an electrical circuit for controllably delivering power from a power source to an electrical load including a switch further configured to operate in a first conducting mode and a second non-conducting mode, and a controller, the method includes ceasing delivering power from the power source to the electrical load.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: June 23, 2020
    Assignee: GE AVIATION SYSTEMS LLC
    Inventors: Peter James Handy, Andrew Paul Wyer
  • Patent number: 10673268
    Abstract: A multiphase charging circuit includes a first phase having a first switch and a second phase having a second switch to provide a system voltage for a system load, a control method of the multiphase charging circuit includes: generating a plurality of feedback control signals with generating each of feedback control signal based on a corresponding feedback signal, a ramp signal, a corresponding reference signal and a current flowing through the first phase; selecting one of the plurality of feedback control signals as a first enable signal; generating a first control signal of the first switch based on the first enable signal and a first time period control signal; generating a second enable signal by shifting a pre-determined phase difference to the first control signal; and generating a second control signal of the second switch based on the second enable signal and a second time period control signal.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 2, 2020
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventor: Min Xu
  • Patent number: 10667351
    Abstract: System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal. The switch is connected to a first diode terminal of a diode and a first inductor terminal of an inductor. The diode further includes a second diode terminal, and the inductor further includes a second inductor terminal.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 26, 2020
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Lieyi Fang, Jun Zhou
  • Patent number: 10651643
    Abstract: Methods and apparatuses for detecting when an electronic device, preferably a portable electronic device (PED) in some embodiments, has been exposed to moisture, and inhibiting the flow of electrical power to the electronic device when the moisture is too high or increasing too fast are disclosed. Embodiments sample air within the device, measure the moisture in the sampled air, inhibit the connection of electrical power to the device if the moisture exceeds a threshold, and permit the connection of electrical power to the device if the moisture is below a threshold. Some embodiments measure the moisture in the ambient air to improve effectiveness. Other embodiments allow resetting of a tripped condition. Other embodiments include constant sampling of air from within the device to assist drying, and inhibiting application of power to the device until the device is sufficiently dry. Still other embodiments interrupt power from the battery within the device.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 12, 2020
    Assignee: Revive Electronics, LLC
    Inventors: Joel Trusty, Reuben Zielinski, Mark Earle, David Douberteen, Scott Moorehead, Micah Trusty
  • Patent number: 10637228
    Abstract: A system electrostatic discharge circuit is provided. The system electrostatic discharge circuit includes a first transient voltage suppressor diode and a first resistance element. The first resistance element and the first transient voltage suppressor diode are coupled in series between a first power line and a second power line. In addition, a resistance value of the first resistance element is proportional to a sum of currents flowing through the first resistance element.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: April 28, 2020
    Assignee: Nuvoton Technology Corporation
    Inventor: Pao-Shu Chang
  • Patent number: 10622883
    Abstract: Resonant power converters. Example embodiments are integrated circuit controllers for a resonant power converter, the controllers including: a frequency controller configured to control frequency of signals driven to a high-side gate terminal and a low-side gate terminal; a fault detector configured to sense an overcurrent condition of a primary winding of the resonant power converter, and to assert an overcurrent signal responsive to the overcurrent condition; a feedback controller that, during periods of time when the overcurrent signal is de-asserted, is configured to sense a signal representative of output voltage by way of the feedback terminal and to create an intermediate signal; and the feedback controller further configured to, during periods when the overcurrent signal is asserted, modify the intermediate signal to increase the frequency of the signals driven to the high-side gate terminal and the low-side gate terminal.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 14, 2020
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Vaclav Drda, Roman Stuler
  • Patent number: 10618410
    Abstract: A motor vehicle comprises a motor configured to input and output power for driving; an inverter configured to drive the motor; a power storage device configured to transmit electric power to and from the motor; a system main relay configured to connect and disconnect the power storage device with and from a power line on an inverter-side; and a control device configured to enable the motor vehicle to be driven with turning on the system main relay according to a predetermined procedure in response to a system on-operation. The motor vehicle does not perform failure diagnosis of the inverter when an abnormality signal of the inverter is generated before a predetermined time after the system main relay is turned on in response to the system on-operation, while performing the failure diagnosis when the abnormality signal of the inverter is generated after the predetermined time.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: April 14, 2020
    Assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation
    Inventors: Takahiko Hirasawa, Junmin Cao
  • Patent number: 10573231
    Abstract: A system for compensating the input signals to arrays of pixels that include semiconductor devices that age differently under different ambient and stress conditions. The system creates a library of compensation curves for different stress conditions of the semiconductor devices; identifies the stress conditions for at least a selected one of the semiconductor devices based on the rate of change or absolute value of at least one parameter of at least the selected device; selects a compensation curve for the selected device based on the identified stress conditions; calculates compensation parameters for the selected device based on the selected compensation curve; and compensates an input signal for the selected device based on the calculated compensation parameters.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: February 25, 2020
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Ricky Yik Hei Ngan, Nino Zahirovic
  • Patent number: 10566779
    Abstract: Disclosed is a DC circuit breaker including at least one contact configured to be coupled between a source of DC power and a DC load and a method of controlling the closed and open state of the contact. The DC circuit breaker includes a thermomagnetic trip circuit and an electronic trip circuit. The electronic trip circuit is responsive to a sensed level of DC current flowing in the contact in a closed state for accumulating an indication of the total time the DC current is sensed. The accumulated indication of the total time the DC current is sensed is compared to a predetermined value or level and, in response to the accumulated indication exceeding the predetermined value or level, the contact is caused to switch from a closed state to an open state.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 18, 2020
    Assignee: Bombardier Transportation GmbH
    Inventors: Carl Lavertu, Maxime Berger
  • Patent number: 10566123
    Abstract: A linear solenoid driving device that drives a linear solenoid, the linear solenoid driving device includes a driving circuit that performs switching control over a switching element connected to the linear solenoid based on a driving command; a current detection circuit that has a detection resistor which is connected to the switching element and the linear solenoid, and detects a current, and an operational amplifier which amplifies a voltage across both ends of the detection resistor and outputs the amplified voltage; a reference voltage output circuit that outputs a reference voltage which has a same temperature characteristic as an output voltage of the operational amplifier; and a control unit.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 18, 2020
    Assignees: AISIN AW CO., LTD., TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Hiroyuki Sugiyama, Toshio Shiramatsu
  • Patent number: 10530269
    Abstract: An alternating current-direct current (AC-DC) converter includes: an input AC power supply that outputs an input AC voltage; a step-up converter that converts the input AC voltage into an output DC voltage to be outputted from an output capacitor; and an inrush current suppressing circuit. The inrush current suppressing circuit includes: an inrush current suppressing resistor provided on a path through which a current from the input AC power supply flows to charge the output capacitor and returns to the input AC power supply; a resistance short-circuiting switch that short-circuits the inrush current suppressing resistor; and a control circuit that generates a signal for turning off the resistance short-circuiting switch when an absolute value of the input AC voltage is higher than the output DC voltage.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takao Hashimoto, Takuya Ishii
  • Patent number: 10530235
    Abstract: Systems for and methods of synchronous rectification in a flyback power converter are disclosed. In accordance with an embodiment, a switching power supply comprises a power converter and a controller. The power converter has an inductor, a capacitor and a switching element. The switching element is configured to rectify a current in the inductor for charging the capacitor to form a voltage for powering a load. The switching element comprises a switch and a diode. The controller is configured to control the switching element and to detect a load condition. When the load condition is detected, the controller controls the switching element to actively rectify the current in the inductor for charging the capacitor. When the load condition is not detected, the controller holds the switching the element open such that the current is passively rectified by the diode.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: January 7, 2020
    Assignee: Champion Microelectronic Corporation
    Inventors: Jeffrey Hwang, Alland Chee
  • Patent number: 10516293
    Abstract: An un-interruptible power supply (UPS) with indication of battery internal resistance includes a processor, a display, an internal resistance sensor assembly and a battery pack. The internal resistance sensor assembly is connected to the processor and the battery pack. The processor is connected to the display, generates a reference internal resistance according to multiple internal resistances detected by the internal resistance sensor assembly within a stable time after installation, generates a stable internal resistance according to an internal resistance of the battery pack detected by the internal resistance sensor assembly after the stable time, compares the stable internal resistance with the reference internal resistance to generate a status of internal resistance of the battery pack, and instructs the display to display the status for user's timely awareness of the condition of the battery pack and prompt action when the performance of the battery pack deteriorates.
    Type: Grant
    Filed: December 23, 2018
    Date of Patent: December 24, 2019
    Assignee: CYBER POWER SYSTEMS INC.
    Inventors: Hung-Ming Hsieh, Yung-Hao Peng, Ta-Peng Chen
  • Patent number: 10483066
    Abstract: In one embodiment, there is a fault interrupter device comprising at least one sensor comprising at least one first transformer having at least one outer region forming an outer periphery and at least one inner hollow region. There is also at least one second transformer that is disposed in the inner hollow region of the at least one first transformer. The transformers can be substantially circular in configuration, and more particularly, ring shaped. In another embodiment there is a rotatable latch which is used to selectively connect and disconnect a set of separable contacts to selectively disconnect power from the line side to the load side. The rotatable latch is in one embodiment coupled to a reset button. In at least one embodiment there is a slider which is configured to selectively prevent the manual tripping of the device.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: November 19, 2019
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Michael Kamor, James Porter, Kurt Dykema
  • Patent number: 10483757
    Abstract: A fast-acting power protection system and a related method of power protection are disclosed. The fast-acting power protection system includes a current limiting block capable of reducing or blocking an unwanted current or voltage surge at an input terminal of the fast-acting power protection system. The fast-acting power protection system can include an NMOS-based power switch unit, a current-limiting block control unit, and an NMOS-based active Zener clamp, which may be separated or combined on hybrid substrates of a single semiconductor package for improved design and manufacturing scalability, cost efficiency, and reliability. Depending on design preferences, the NMOS-based active Zener clamp may be integrated into the current-limiting block control unit or remain separate. The fast-acting power protection system protects an electrical device connected to an output terminal of the fast-acting power protection system from an unwanted voltage surge by rapidly clamping an output voltage to a clamp voltage.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 19, 2019
    Assignee: Manufacturing Networks Incorporated (MNI)
    Inventors: Michael Alan Banak, Vallangiman Venkataraman Srinivasan
  • Patent number: 10474180
    Abstract: The disclosure discloses a current balance circuit, which comprises a current sensing unit, a reference unit and an adjusting unit. The current sensing unit is configured to receive a plurality of input currents flowing through a plurality of channels having different impedances, and generate a plurality of corresponding input voltages according to the plurality of input currents. The reference unit is coupled to the current sensing unit, and configured to distribute a plurality of setting voltages corresponding to a plurality of output ends according to an output current ratio related to the plurality of output ends and the plurality of input voltages. The adjusting unit is coupled to the current sensing unit and the reference unit, and configured to adjust the plurality of input currents according to the plurality of setting voltages and input voltages, and generate a plurality of output currents to prevent a channel from being overloaded.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 12, 2019
    Assignee: ASUS GLOBAL PTE. LTD.
    Inventors: Meng-Jie Yang, Zhao-Long Dong
  • Patent number: 10468869
    Abstract: An analog transmit/receive switch and voltage detection circuit that do not require depletion mode devices are provided. The switch may be configured to operate in a receive mode and a protection mode. The voltage detection circuit may be coupled to the switch and may be configured to measure a potential difference between two terminals of the switch. The switch and the voltage detection circuit may not include any depletion mode devices.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: November 5, 2019
    Assignee: Microchip Technology Incorporated
    Inventors: Isaac Ko, Ka Wai Ho, Wan Tim Chan
  • Patent number: 10429410
    Abstract: A wheel sensor interface apparatus may include: a wheel sensor interface unit configured to supply power to a wheel sensor of a vehicle, or sense an output current of the wheel sensor and transmit the sensed current to a microprocessor unit of the vehicle; and an over-current detection unit including: a reference current generation unit configured to generate a reference current using a voltage across a resistor through which the output current flows; and a voltage level decision unit configured to decide a voltage level according to the reference current. The over-current detection unit may determine whether the output current is an over-current, according to the voltage level.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 1, 2019
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jaehyun Park
  • Patent number: 10425074
    Abstract: There has been a problem in semiconductor apparatuses of related art in which a circuit operation cannot be returned after a reverse current occurred. In one embodiment, a semiconductor apparatus includes a timer block configured to count up a count value to a predetermined value in response to a control signal being enabled, the control signal instructing a power MOS transistor to be turned on, and a protection transistor including a drain connected to a gate of the power MOS transistor, a source and a back gate connected to a source of the power MOS transistor, and an epitaxial layer in which the power MOS transistor is formed, the epitaxial layer being supplied with a power supply voltage. The protection transistor short-circuits the source and gate of the power MOS transistor in response to an output voltage of the power MOS transistor meeting a predetermined condition and the count value reaching the predetermined value.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: September 24, 2019
    Assignee: Renesas Electronics Corporation
    Inventor: Sakae Nakajima
  • Patent number: 10418805
    Abstract: A novel system is offered for supplying power from an input node to a load coupled to an output node. The system may have multiple switches coupled between the input node and the output node. One or more limiting circuits may be configured for controlling the switches so as to limit outputs of the switches. For example, the limiting circuits may limit current through the respective switches. One or more timers may set a delay period for indicating a fault condition after the limiting is initiated.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: September 17, 2019
    Assignee: Linear Technology LLC
    Inventors: Joshua John Simonson, David Henry Soo, Christopher Bruce Umminger
  • Patent number: 10411585
    Abstract: An inverter system includes an inverter apparatus and a smoothing capacitor charging-power apparatus. The inverter apparatus includes a transformer and an inverter cell. The transformer includes primary windings and secondary windings. Each of the inverter cells includes a converter circuit, a smoothing capacitor, and an inverter circuit. The converter circuit is configured to convert an intermediate alternating-current voltage to a direct-current voltage. The smoothing capacitor is configured to smooth the direct-current voltage. The inverter circuit is configured to at least partially generate a phase voltage of a variable alternating-current voltage from the direct-current voltage smoothed by the smoothing capacitor. Electric power is to be supplied from a second power supply different from a first power supply to the smoothing capacitor charging-power apparatus.
    Type: Grant
    Filed: June 8, 2014
    Date of Patent: September 10, 2019
    Assignees: KABUSHIKI KAISHA YASKAWA DENKI, YASKAWA AMERICA, INC.
    Inventors: Taisuke Katayama, Eiji Yamamoto, Kenji Mitsuda, Hiroshi Takagi, Thomas Bryan Sasada
  • Patent number: 10410561
    Abstract: An organic light emitting display device includes a display panel, a data driver, and a scan driver. The display panel includes sub-pixels. The data driver supplies a data signal to the sub-pixels. The scan driver supplies a scan signal for controlling a switching transistor of each sub-pixel, and a sensing signal for controlling a sensing transistor of each sub-pixel. The sensing transistor has a turn-on time for detecting whether a short has occurred between at least two electrodes of a switching transistor in response to a sensing signal.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: September 10, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Joonmin Park
  • Patent number: 10375787
    Abstract: System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal. The switch is connected to a first diode terminal of a diode and a first inductor terminal of an inductor. The diode further includes a second diode terminal, and the inductor further includes a second inductor terminal.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: August 6, 2019
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Lieyi Fang, Jun Zhou
  • Patent number: 10367348
    Abstract: The present disclosure provides a control apparatus of a switch-mode power supply and a switch-mode power supply. In the control apparatus of the present disclosure, a short-circuit protection module is set, and when a switching transistor of the switch-mode power supply is turned on, and the short-circuit protection module detects that a voltage across a current sensing resistor of the switch-mode power supply is less than a predetermined value within a predetermined period, that is, the current sensing resistor is short-circuited, the short-circuit protection module generates a short-circuit protection signal, and a driving controller controls the switching transistor to turn off according to the protection signal, thereby switching off the control apparatus, preventing breakdown of the switch-mode power supply, and avoiding erroneous protection.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: July 30, 2019
    Assignee: BYD COMPANY LIMITED
    Inventors: Yongjun Hou, Wenqing Wang
  • Patent number: 10355474
    Abstract: An inrush current prevention circuit includes: a voltage detection unit configured to detect a value of an input voltage applied by a power supply; a current detection unit configured to detect a value of an input current input from the power supply; a current limiting element configured to limit the input current; a voltage drop detection unit configured to detect a voltage drop in the power supply resulting from inrush currents using a detection voltage value detected by the voltage detection unit and a detection current value detected by the current detection unit; and a control unit configured to decrease a current limiting level of the current limiting element when the voltage drop detection unit detects the voltage drop.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: July 16, 2019
    Assignee: FANUC CORPORATION
    Inventor: Jun Okamoto
  • Patent number: 10342088
    Abstract: System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal. The switch is connected to a first diode terminal of a diode and a first inductor terminal of an inductor. The diode further includes a second diode terminal, and the inductor further includes a second inductor terminal.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: July 2, 2019
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Lieyi Fang, Jun Zhou
  • Patent number: 10333514
    Abstract: A communication signal terminal receives a first communication signal which includes an address of a first IC and a first configuration value for the first IC, and a second communication signal which includes an address of a second IC and a second configuration value for the second IC. A data common bus is connected to the communication signal terminal and transmits the first communication signal and the second communication signal. The first IC is configured to receive the first communication signal transmitted through the data common bus, and store first configuration value for the first IC included in the second communication signal. The second IC is configured to receive the second communication signal transmitted through the data common bus, and store the second configuration value for the second IC stored in the second communication signal.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: June 25, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Koichiro Noguchi
  • Patent number: 10321716
    Abstract: A capsule (6) contains a liquid (28) to be supplied to an atomizer (20) and is mounted on or in an electronic smoking device (1). The capsule (6) has a controller (40) including a memory, which receives data from and transmits data to control electronics (14) of the electronic smoking device (1). A capacitor in the capsule (6) is charged by the electronic smoking device (1) and powers the controller (40) during intermediate intervals. Electrical contacts (26, 48) of the capsule are connected to electrical contacts (24, 46) of the electronic smoking device (1) to charge the capacitor and exchange data.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: June 18, 2019
    Assignee: FONTEM HOLDINGS 1 B.V.
    Inventor: Roland Zitzke
  • Patent number: 10320445
    Abstract: A communication system comprising: a control line transmitting a control signal for controlling charging of a battery mounted on a vehicle; a reference potential line connected to a reference potential of the vehicle serving as a reference for the control signal; a first PLC communication device connected to the control line and the reference potential line and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus; and an inductive element which is provided at a point of connection between the reference potential line 1c and the reference potential or provided in the reference potential line and the inductive element having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: June 11, 2019
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Ryo Okada, Takeshi Hagihara, Ryo Tanaka, Nobuyuki Nakagawa, Kengo Hayashizaki
  • Patent number: 10305464
    Abstract: A control IC of a switching power-supply device includes a switching element, a control circuit, a regenerative current element for allowing a regenerative current of an inductor to flow when the switching element is in a turned-off state, a ground terminal connected to the regenerative current element, and a protection circuit that forms, when a voltage of the connection point is equal to or less than a threshold value, a regenerative path which connects a connection point between the regenerative current element and the ground terminal to a specific terminal and through which the regenerative current flows, and stops on-and-off control of the switching element by the control circuit.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: May 28, 2019
    Assignee: Sanken Electric Co., LTD.
    Inventor: Hiroaki Nakamura
  • Patent number: 10303163
    Abstract: Herein provided are methods and systems for detecting failure of a sensor in a control system for a gas turbine engine. A signal is received from the sensor. A high-pass filter is applied to the signal to produce a high-frequency component signal. A rate of occurrence of signal spikes in the high-frequency component signal is determined. The high-frequency component signal is compared to a component signal threshold which is based on at least one known healthy component signal and at least one faulty component signal. The presence of intermittent open circuits caused by the sensor is detected based on the comparing and on the rate of occurrence of signal spikes.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: May 28, 2019
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Hai Tao Wu, Michael Conciatori, Tommy Woo, Michael Woinowsky-Krieger
  • Patent number: 10285239
    Abstract: A protection circuit for short circuit of LED power supply includes a constant voltage source powered by the LED power supply, a constant current source powered by the LED power supply, a switching module for controlling the constant current source to turn off or turn on, and an output current detecting module for controlling the switching module to turn off or turn on. The constant current source is provided in parallel with the constant voltage source. The switching module includes a PNP type transistor connected in series to the constant current source. The output current detecting module includes a NPN type transistor, a base of the NPN type transistor being electrically connected to the output terminal of the constant voltage source, an emitter of the NPN type transistor grounding, and a collector of the NPN type transistor being electrically a base of the PNP type transistor.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: May 7, 2019
    Assignee: Self Electronics Co., Ltd.
    Inventors: Xiaoyong Zhou, Xiaobo You, Xuejun Zhou, Xiyong Zhou
  • Patent number: 10270247
    Abstract: A power switch module comprising a control component. Upon an indicated operating condition fulfilling a protection condition, the control component is arranged to transition the power switch module from an ON state to a latched-OFF state in which the control component is arranged to configure the switching device to be turned off to decouple the load node from the power supply node. Having transition to the latched-Off state, the control component is further arranged to determine whether a voltage level at the load node exceeds a threshold voltage level, and if it is determined that the voltage level at the load node exceeds the threshold voltage level, transition the power switch module from the latched-OFF state to a current-limited state in which the control component is arranged to control the switching device to limit current-flow there through.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: April 23, 2019
    Assignee: NXP USA, INC.
    Inventors: Laurent Guillot, Philippe Dupuy
  • Patent number: 10243355
    Abstract: An electric propulsion system is described that includes at least one branch for distributing electrical power, provided by a power source, to one or more loads. The at least one branch is partitioned into one or more zones and comprises a plurality of branch isolation devices that are configured to isolate the at least one branch from the power source in response to a fault current at the at least one branch. In addition, the at least one branch comprises a respective pair of zone isolation devices for each respective zone from the one or more zones. The respective pair of zone isolation devices for each respective zone is configured to isolate the respective zone from the at least one branch, during a test of the at least one branch for identifying which of the one or more zones is a source of the fault current.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: March 26, 2019
    Assignees: Rolls-Royce North American Technologies, Inc., Rolls-Royce Corporation
    Inventors: Michael James Armstrong, Andrew Mark Bollman
  • Patent number: 10236677
    Abstract: In a semiconductor device, an IGBT and an SJMOSFET connected in parallel have respective gate terminals controlled independently of each other. When a high voltage occurs and a high current flows caused by short-circuit in an external circuit under a condition of ON state of the IGBT and SJMOSFET, an operational amplifier in the control IC detects the overcurrent through the IGBT and controls the gate signal to restrict the current through the IGBT. After that, the operational amplifier throttles the current through the IGBT according to a reference voltage of a capacitor decreasing by the discharge through a constant current source, thus conducting soft-OFF operation of the IGBT.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: March 19, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Tatsuya Naito, Masahito Otsuki
  • Patent number: 10228413
    Abstract: A method and system to monitor electrical devices. At least one characteristic electric power consumption profile is determined for an operational cycle for an electrical device. The electrical device includes a number of components that each operate at respective time intervals within the operational cycle. A measured electric power consumption dataset is received, from an electrical power measurement apparatus connected to a power input of the electrical device, for the electrical device where the measured electric power consumption dataset includes measurements of electrical consumption by the electrical device over a time duration corresponding to at least part of the operational cycle. The measured electric power consumption dataset is compared to the at least one characteristic electrical power consumption profile associated with the electrical device. Based on the comparing, an operational condition from within a plurality of operating conditions of the electrical device is indicated.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: March 12, 2019
    Assignee: International Business Machines Corporation
    Inventors: Vittorio Castelli, Martin Franz
  • Patent number: 10211620
    Abstract: In a semiconductor device, an abnormality monitor unit detects whether abnormal leakage current has been generated from a first functional module or a second functional module on the basis of a comparison between a change in voltage at a first node between the first functional module and a first power switch when the first power switch is in an off state and a change in voltage at a second node between the second functional module and a second power switch when the second power switch is in the off state.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 19, 2019
    Assignee: Renesas Electronics Corporation
    Inventors: Kan Takeuchi, Mitsuhiko Igarashi, Makoto Ogasawara
  • Patent number: 10162996
    Abstract: Devices and methods are provided for recovering from latchup state in fingerprint sensor devices. For example, a disclosed device can be operated to perform operations that include, receiving, at a microcontroller of the fingerprint sensor device, raw sensor data from a sensor array in communication with the microcontroller, comparing the received raw sensor data against a predetermined threshold, and, based at least partly on the comparing, resetting power supplied to the fingerprint sensor device to recover from a latchup state.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: December 25, 2018
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Hua Zhong, Jinchun Ye, Shunzhan Li, Jinhui Lin
  • Patent number: 10090671
    Abstract: A switching power converter is provided with an overvoltage protection circuit that softly switches on a power bus switch during a soft-start period responsive to a device connecting to a data cable for receiving power over a power bus coupled to the power bus switch.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: October 2, 2018
    Assignee: DIALOG SEMICONDUCTOR INC.
    Inventors: Yimin Chen, Mengfei Liu, Duc Doan, Xiaoyong Zhang, Jianming Yao
  • Patent number: 10065583
    Abstract: An integrated power distribution, data network, and control architecture for a vehicle is provided that includes nodes distributed throughout the vehicle. Each node includes power distribution (PD) and data collection and distribution (DCD) components. The PD components receive electrical power from a source external to the node and distribute and control the electrical power supplied to active and passive electrical loads that are external to the node. The PD components include an electrical power input interface configured to receive an electrical power input from a source external to the node, and one or more power control modules. Each power control module can control the electrical power supplied to one or more electrical power output interfaces that supply power to the active and passive electrical loads. The DCD components receive data from data sources external to the node and transmit data to data consumers external to the node.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: September 4, 2018
    Assignee: Gulfstream Aerospace Corporation
    Inventors: Pedro R. Carleial, Michael Knight
  • Patent number: 10017063
    Abstract: An electrical distributor arrangement, in particular for electrically driven motor vehicles, having a housing which has two electrical terminals which are connectable in each case to an external electrical energy source, a multiplicity of through lines which are connected at their ends in each case to one of the terminals, and a multiplicity of electrical attachment lines which are led into the housing for the purposes of electrically contacting a multiplicity of electrical consumers with the through lines, wherein the through lines are in the form of rigid current rails, and wherein the attachment lines are fixedly connected in each case to one of the current rails.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: July 10, 2018
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Sascha Martens, Timo Wetzel
  • Patent number: 10008973
    Abstract: This disclosure discusses systems and methods related to the following example scenarios. When an aerial vehicle of an airborne wind turbine is functioning normally in motoring mode, a voltage converter may receive a nominal voltage from a power conversion system and provide the nominal voltage to the aerial vehicle. When the aerial vehicle is experiencing a fault in motoring mode, the voltage converter may receive the nominal voltage and provide a reduced fault voltage to the aerial vehicle. When the aerial vehicle is functioning normally in power-generating mode, the voltage converter may receive the nominal voltage from the aerial vehicle and provide the nominal voltage to the power conversion system. When the aerial vehicle is experiencing a fault in power-generating mode, the voltage converter may receive a reduced fault voltage from the aerial vehicle, boost the fault voltage, and provide the boosted fault voltage to the power conversion system.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: June 26, 2018
    Assignee: X DEVELOPMENT LLC
    Inventors: Leo Casey, Geoffrey Dolan