Connecting Or Disconnecting Patents (Class 307/85)
  • Patent number: 11860224
    Abstract: The disclosure describes a novel method and apparatus for improving interposers to include embedded monitoring instruments for real time monitoring digital signals, analog signals, voltage signals and temperature sensors located in the interposer. An embedded monitor trigger unit controls the starting and stopping of the real time monitoring operations. The embedded monitoring instruments are accessible via an 1149.1 TAP interface on the interposer.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: January 2, 2024
    Assignee: Texas Instruments Incorporated
    Inventor: Lee D. Whetsel
  • Patent number: 11848620
    Abstract: A first leg includes a first switch circuit disposed between a first node to which a positive electrode of a DC power supply is connected and a second node and a second switch circuit disposed between the second node and a third node. A first filter circuit includes a first capacitor. A bridge circuit includes a second leg and a third leg that are disposed in parallel between the first node and the third node. A clamp circuit includes a bidirectional switch disposed between a fourth node that is a midpoint of the second leg and a fifth node that is a midpoint of the third leg. A second filter circuit includes a first reactor and a second reactor.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: December 19, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi Amimoto, Yu Kawai
  • Patent number: 11804718
    Abstract: A control system includes a plurality of subsystems each operative to perform a unique vehicle function, a plurality of electronic controllers each operative to individually control at least one of the plurality of subsystems, wherein a number of subsystems is greater than a number of controllers, and a plurality of switching devices each operative to selectively connect any one of the plurality of subsystems to any one of the plurality of electronic controllers.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 31, 2023
    Assignee: Parker-Hannifin Corporation
    Inventors: Eric A. Polcuch, Andrew D. Momotiuk, Alexandre J. Borreda
  • Patent number: 11794587
    Abstract: In one embodiment, a method includes determining, by an auxiliary power controller, a first selection of one or more power input sources from a plurality of power input sources. The method also includes determining, by the auxiliary power controller, a first selection of one or more power consuming devices from a plurality of power consuming devices. The method further includes managing, by the auxiliary power controller, transfer of auxiliary power from the first selection of the one or more power input sources to the first selection of the one or more power consuming devices.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: October 24, 2023
    Assignee: BNSF Railway Company
    Inventors: Michael Cleveland, James Taylor
  • Patent number: 11784358
    Abstract: A self-regulating battery may generate a basis state for one or more modules using one or more system inputs. The system inputs comprise current, voltage, and battery degradation. The battery generates a family of weighted forecasts for future bus demands using usage and performance based weights. The battery generates one or more plans to support demand from the battery using the weighted forecasts. The battery scores the one or more plans based on efficiency of power extraction from the battery, and combines the scored one or more plans with an updated SoH value based on induced degradation from a usage plan. The battery generates the combined scored for each of the one or more plans, and transmits one of the combined scored to the battery management unit for execution.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: October 10, 2023
    Assignee: THE AEROSPACE CORPORATION
    Inventors: Eric Joseph Nemanick, Ann L. Chervenak, Joseph Z. Fuerst, Andrew Brethorst, Michael R. Hale, Kevin Macdougall, Justin Stocker
  • Patent number: 11750111
    Abstract: A power supply device, a power supply management module and method are provided. The power supply device includes a power supply management module. The power supply management module includes a first and a second power supply module, a detection unit, and a switching control module. The first power supply module includes a first alternating current input end, a first rectifier circuit, and a first switch unit. A first end of the first switch unit is connected to the first rectifier circuit. The second power supply module includes a second alternating current input end, a second rectifier circuit, and a second switch unit. A third end and a fourth end of the second switch unit are connected to the second rectifier circuit and a second end of the first switch unit, respectively. The switching control module controls the first and the second switch unit according to a detection signal.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: September 5, 2023
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventors: Yung-Hung Hsiao, Chia-Hsien Yen, Hao-Chieh Chang, Cheng-Chang Hsiao, Da-Shian Chen
  • Patent number: 11474581
    Abstract: A hot-swap controller regulates the supply of power from an input node to a load coupled to an output node. The controller includes at least one limiting circuit configured to control a first switch connected between the input node and the load to limit an output current of the first switch for application to the load. A control logic circuit determines a state of the first switch and outputs a local state signal, and a communication circuit responsive to the local state signal establishes a voltage or current level corresponding to the local state at a communication circuit output. A communication terminal is also provided that is responsive to the communication output and that is adapted to connect to a second communication terminal of a second hot-swap controller to communicate the local state to the second hot-swap controller.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: October 18, 2022
    Assignee: Analog Devices International Unlimited Company
    Inventors: Joshua John Simonson, Jiong Xia
  • Patent number: 11467213
    Abstract: A defect detector can receives voltage data characterizing a three-phase voltage for each of a plurality of feeder lines. The defect detector generates an alert indicating that a potential defect exists at a switch upstream of the plurality of feeder lines in response to the voltage data indicating (i) a drop in two or more phases of voltage at a given feeder line of the plurality of feeder lines occurred within a predetermined amount of time of toggling of the switch or (ii) a drop in two or more phases of voltage on at least two or more feeder lines of the plurality of feeder lines has occurred.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: October 11, 2022
    Assignee: FLORIDA POWER & LIGHT COMPANY
    Inventors: Robert A. Baker, Nerva Kenol, Andrew W. Kirby, Jacob Benator, Michelet Orange, Clive K C Leung, Charles E. Orr, Justin D Klocman, Benny P. Pazhayattil
  • Patent number: 11316349
    Abstract: The present disclosure relates to a recloser control that provides autosynchronization of a microgrid to an area electric power system (EPS). For example, a recloser control may include an output connector that is communicatively coupled to a recloser at a point of common coupling (PCC) between the area EPS and the microgrid. The recloser control may include a processor that acquires a first set of measurements indicating electrical characteristics of the area EPS and acquires a second set of measurements indicating electrical characteristics of the microgrid. The recloser control may send synchronization signals to one or more distributed energy resource (DER) controllers to synchronize one or more DERs to the area EPS based on the first set of measurements and the second set of measurements.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: April 26, 2022
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Craig Thompson, Scott M Manson
  • Patent number: 11300934
    Abstract: Methods and apparatus for automatic, dynamically adjusted operation of load-sharing gensets. An example of such operation may include determining an updated genset-removal load based on a genset-addition load, an initial genset-removal load, a human-selected one of predetermined levels of dynamism, and the number of operating ones of the gensets. An operating genset is halted in response to the actual loads of each operating genset simultaneously being at or below the updated genset-removal load. In another example, while two or more gensets are operating, an updated genset-removal load is determined based on the genset-addition load and a hysteresis setpoint, and an operating genset is halted in response to actual loads of each operating genset simultaneously being at or below the updated genset-removal load.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: April 12, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Ramakrishna Madhireddy
  • Patent number: 11251602
    Abstract: A method for locating an electrical arc fault upstream or downstream of an electrical protection device connected in series in an electrical circuit between an electrical energy source and an electrical load, the source supplying a supply current to the electrical load. The method includes the measurement of several electrical quantities linked to the supply current, the detection of a simultaneous variation of at least two electrical quantities linked to the supply current, the confirmation of the presence of the arc fault, and the determination of the position of the arc fault upstream or downstream of the protection device. Also, a protection device can implement such a method.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: February 15, 2022
    Assignee: Schneider Electric Industries SAS
    Inventors: Andi Jakupi, Hynek Raisigel, Costin Vasile
  • Patent number: 11143740
    Abstract: The present invention relates to a radar system for a vehicle, a method for controlling a radar system, a computer program product, and a vehicle comprising such a radar system. The radar system comprises an antenna arrangement for transmitting and/or receiving electromagnetic waves, a power supply connected to the antenna arrangement, the power supply being arranged to supply the antenna arrangement with operating power. The radar system further comprises an antenna controller connected to the antenna arrangement, the antenna controller being configured to control an operation of the antenna arrangement.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 12, 2021
    Assignee: SAAB AB
    Inventors: Anders Hoeoek, Max Wallen, Bruno Lumetzberger, Valter Nilsson
  • Patent number: 11081885
    Abstract: Provided is a battery energy storage grid-load interactive method, terminal, system and medium for superimposed control. The method includes: receiving, by the battery energy storage grid-load interactive terminal, a load shedding instruction sent by a master station; sending, by the battery energy storage grid-load interactive terminal, the load shedding instruction to the power conversion system to enable the power conversion system to switch the operating state of the power conversion system from a charging state or a standby state or a discharging state to a maximum power discharging state according to the load shedding instruction; and sending, by the battery energy storage grid-load interactive terminal, the load shedding instruction to the energy managing system to enable the energy managing system to control the power conversion system.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: August 3, 2021
    Inventors: Jijun Yin, Yong Xia, Xiaofeng Wang, Yaohong Li, Xiao Lu, Jianyu Luo, Jinhu Wang, Zhenyu Chen, Haifeng Li, Chengliang Wang, Jie Fan, Cheng Li, Hongxing Wang, Yujun Lu, Hao Chen, Jiajia Cao, Ning Wang, Yonggao Ge
  • Patent number: 10985602
    Abstract: An automatic power switching system includes a first power interface module coupled to a first power supply terminal for obtaining a first power signal, a second power interface module coupled to a second power supply terminal for obtaining a second power signal, a power input identification module for identifying whether the first power signal meets a requirement, a power output module for receiving the first power signal or the second power signal and for providing a corresponding power signal to a power consumption module, and a switch module for turning on the second power interface module and the power output module when confirming the first power signal not meeting the requirement.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: April 20, 2021
    Assignee: QISDA OPTRONICS (SUZHOU) CO., LTD.
    Inventors: Qianmo Chen, Jian Shen
  • Patent number: 10948854
    Abstract: A bias circuit includes one or more first Zener diodes electrically coupled to a member provided in a replacement unit, the one or more first Zener diodes being coupled in series. When the replacement unit is removably attached to a main unit including a power supply that has one or more second Zener diodes coupled in series, the first Zener diodes are electrically coupled to the second Zener diodes in parallel to change a bias voltage to be applied to the member, the bias voltage being supplied by the power supply. A total absolute value of breakdown voltages across the first Zener diodes is lower than a total absolute value of breakdown voltages across the second Zener diodes.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: March 16, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Okamura
  • Patent number: 10892638
    Abstract: A method determines the topology of a DERs system having a plurality of assets, where at least one of the assets is a controllable asset. The method injects a power signal at a given frequency from a controllable asset into the DERs system. The voltage at each of the plurality of assets is measured, and the magnitude of perturbation of the voltage at the given frequency is determined for each of the plurality of assets. The method then constructs the topology of the DERs system as a function of the differences of the magnitude of perturbations of each of the plurality of assets.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 12, 2021
    Assignee: Heila Technologies, Inc.
    Inventors: Jorge Elizondo Martinez, Albert Tak Chun Chan, Francisco A. Morocz Bazzani
  • Patent number: 10797615
    Abstract: A design method for the current controller of a grid connected inverter is discussed in this disclosure. The repetitive control strategy is used, in tandem with a mu-synthesis based current controller, to attain sinusoidal reference tracking and harmonic rejection. Mu-synthesis based control is chosen to attain reference tracking in the presence of plant uncertainties. The repetitive control strategy is selected since it can reject a large number of harmonics simultaneously, while providing a clean sinusoidal current waveform to the grid, even in the presence of grid load and/or voltage distortions. The repetitive control strategy is implemented via the internal model principle. By applying mu-synthesis principles, a feedback controller that simultaneously achieves stability and tracking performance is obtained.
    Type: Grant
    Filed: February 18, 2018
    Date of Patent: October 6, 2020
    Inventor: Mohit Chhabra
  • Patent number: 10715066
    Abstract: A method for controlling a wind turbine comprising inputting an actual value of rotational speed and a rotational speed setpoint into a control and outputting a set point value for a generator torque from the control. Inputting the set point value for the generator torque into a limiter with a predefinable upper and lower limit and outputting a limited torque value that is fed into a converter control. Increasing the actual value of the fed-in electrical power by an additional amount of power in response to a boost signal, wherein the fed-in electrical power and the additional amount of power are combined into an aggregated power setpoint value. Determining the set point value for the generator torque from the aggregated power setpoint value and applying the set point value for the generator torque in the boost operation to the limiter both as the upper limit and as the lower limit.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: July 14, 2020
    Assignee: Nordex Energy GmbH
    Inventors: Simon De Rijcke, Niels Hamann, Christian Wessels
  • Patent number: 10637462
    Abstract: Apparatus and associated methods relate to a consolidated power-on-reset system (PORS) at a system-on-chip (SoC) level. In an illustrative example, an integrated circuit may include a first power domain and a second power region. A level shifter circuit may be coupled to translate data from the first power domain to the second power domain. A PORS including a voltage detection circuit, a glitch filter circuit, and logic gates may be configured to generate isolation signals between the first power domain and the second power domain. The level shifter circuit may be enabled in response to the generated isolation signals. By using the isolation signals, multiple power domains on IC may be managed comprehensively during power-up to avoid unstable operation.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 28, 2020
    Assignee: XILINX, INC.
    Inventors: Narendra Kumar Pulipati, Sree R K C Saraswatula, Santosh Yachareni, Weiguang Lu, Fu-Hing Ho
  • Patent number: 10535990
    Abstract: A power supply device includes a power supply circuit, a detection circuit, and a control circuit. The power supply circuit is configured to output a supply voltage. The detection circuit is configured to sequentially provide a first predetermined resistance and a second predetermined resistance according to a plurality of switching signals, in order to operate with an electronic device and the supply voltage to sequentially obtain a first detection voltage and a second detection voltage. The control circuit is configured to generate the switching signals, and determine a load resistance of the electronic device according to the first detection voltage and the second detection voltage. The control circuit is further configured to determine whether the load resistance is within a predetermined resistance range, and the power supply circuit is further configured to drive the electronic device if the load resistance is within the predetermined resistance range.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: January 14, 2020
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chien-Sheng Chen, Jian-Ru Lin, Chih-Cheng Lin, Rui Wang
  • Patent number: 10430526
    Abstract: Various embodiments provide systems and methods enabling a user to receive feedback regarding a computer-implemented design of an architectural structure as the user is designing or otherwise modifying the computer-implemented design using a computer-aided design (CAD) software tool. The feedback (hereafter also referred to as “design feedback”) may provide the user with useful analysis information regarding the architectural structure's predicted characteristics (e.g., operational performance, resource consumption, cost, etc.) based on the current state of the computer-implemented design. In particular, heating and cooling loads associated with the computer-implemented design of the architectural structure can be visually displayed to the user in real or near-real-time along with the relationships to contributing factors that impact the heating and cooling loads.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: October 1, 2019
    Assignee: Safaira, Inc.
    Inventors: Guillaume Marceau, David Wightman Swartz, Ritwik Raj, Jacob Miles, Carl Styan Sterner, Jeremy Gayed, Varun Singh, Mads Naestholt Jensen, Alex Jones Tollefsen, Katrina Leigh Schoen
  • Patent number: 10393092
    Abstract: A method for controlling an active power in a wind farm having at least two wind turbines that supply active power comprises inputting a setpoint value for the active power of the wind farm into a wind farm model. The wind farm model outputs a modeled active power setpoint value. A system deviation is determined and input into a power controller, which outputs a controller manipulated variable. A feedforward control manipulated variable is determined independently of states of the wind farm or the active power. An overall manipulated variable is determined for the wind farm as the sum of the controller manipulated variable and the feedforward control manipulated variable. A correction value is determined based on the difference between the actual value of the active power and the modeled active power setpoint value and input into the wind farm model.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: August 27, 2019
    Assignee: Nordex Energy GmbH
    Inventors: Detlef Drossel, Florian Bode
  • Patent number: 10355479
    Abstract: We describe a photovoltaic power conditioning unit for delivering power from multiple photovoltaic panels to an ac mains power supply output, comprising: a dc input for receiving power from multiple photovoltaic panels; an ac output for delivering ac power to the ac supply; a bank of electrolytic energy storage capacitors for storing energy from the dc source for delivery to the ac supply; a dc-to-ac converter coupled to the ac output and having an input coupled to the bank for converting energy stored in the bank to ac power for the ac supply; and further comprising: a plurality of sense and control circuits, one for each capacitor in the bank, wherein each circuit is coupled in series with a capacitor, and is configured to disconnect the associated capacitor from the bank upon detection of a current flow through the associated capacitor of greater than a threshold current value.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 16, 2019
    Assignee: SolarCity Corporation
    Inventor: Asim Mumtaz
  • Patent number: 10355514
    Abstract: A wireless power transmitting device may transmit power wirelessly to a wireless power receiving device. The wireless power receiving device may be a portable electronic device with an array of wireless power receiving coils that receive wireless power from wireless power transmitting coils in the wireless power transmitting device. Each receiving coil in the array of wireless power receiving coils may be coupled to a respective rectifier. Control circuitry of the wireless power receiving device may be configured to determine which rectifiers to enable for synchronous rectification. The control circuitry may be configured to enable at least one rectifier based on the alternating-current voltages produced by each coil in the array of receiving coils. The control circuitry may also be configured to enable at least one rectifier based on the output current from each rectifier.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: July 16, 2019
    Assignee: Apple Inc.
    Inventors: Stephen C. Terry, Nilay D. Jani, Bin Gu, Yongxuan Hu
  • Patent number: 10215159
    Abstract: Methods of starting a wind turbine from a standstill substantially until generator connection, the wind turbine having a rotor with one or more blades, a pitch system for rotating the blades along their longitudinal axes and a generator operationally connected with the rotor. In standstill, the blades are substantially in a feathered position and the generator is not generating electrical power. The methods may comprise measuring the wind speed representative for the wind turbine and measuring the rotor speed of the wind turbine, and when the rotor speed is not equal to zero, determining the tip speed ratio for the wind turbine, and determining the pitch angle of the blades as a function of the tip speed ratio to optimize the torque produced by the blades of the wind turbine rotor.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: February 26, 2019
    Assignee: GE RENEWABLE TECHNOLOGIES WIND B.V.
    Inventor: Isaac Pineda Amo
  • Patent number: 10186868
    Abstract: A power supply apparatus for providing electrical power to a power consuming device or a power conversion device from at least one of a first AC power source and a second AC power source. The power supply apparatus comprises controllable rectifier devices associated with each of the first and second AC power sources. The controllable rectifier devices are controllable to simultaneously rectify and control the power provided by the first and second AC power sources.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: January 22, 2019
    Assignee: FLEXENCLOSURE AB (PUBL)
    Inventors: Anders Hansson, Jonas Hallström
  • Patent number: 10151790
    Abstract: An insulation fault locating system using branch-selective feeding and a selective insulation monitoring system for a branched IT system is composed of multiple subsystems. For insulation fault location, a differential current measuring device, a test signal generator and a blocking device are arranged in each subsystem. The insulation monitoring device additionally includes a selective decoupling device arranged in each subsystem. Furthermore, a method determines a cross impedance between two subsystems on the basis of the insulation monitoring system.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: December 11, 2018
    Assignee: BENDER GMBH & CO. KG
    Inventor: Dieter Hackl
  • Patent number: 10140670
    Abstract: Energy management methods and systems based on financial impact are disclosed herein, wherein an energy management system at a site monitors metered energy consumption, establishes a peak consumption level, determines whether energy consumption will result in an increased peak consumption level, and if it will, calculates the financial value and costs of mitigating an increase in the peak consumption level, including an increase in demand charge prospectively avoided, and mitigates the peak in consumption to the peak consumption level using an energy storage system or other energy providing device if the value of mitigating the peak offsets the inherent costs. Embodiments may further use confidence factors or incremental changes to a peak consumption level to optimize the process and utilize energy devices to their greatest effectiveness.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: November 27, 2018
    Assignee: ENGIE Storage Services NA LLC
    Inventor: Philippe Hart Gow
  • Patent number: 10088887
    Abstract: A central control apparatus may include a controller that includes a control program that when executed collecting data to obtain predicted environmental data including weather information about a target control area, setting information based on the collect data about at least one facility within the target control area, and simulating energy usage to generate a facility model based on the collected data of the at least one facility information and simulating power consumption of the facility model according to a control scenario. Additionally, the simulating of the energy usage may include determining energy reduction of the facility or target control area based on a simulation result of the power consumption of the facility model according to a combination of at least one control scenario, and determining the combination of at least one control scenario based on the energy reduction rate input through the input unit.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 2, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Junghwan Lyu, Heekyung Kim, Wookjin Park, Soyeon Ko
  • Patent number: 10079506
    Abstract: An AC circuit PLC injection module of a PLC-enabled power and data distribution system (300) includes: an AC power input (307) to receive an AC power signal; a PLC transceiver circuit (430/440) to couple a PLC signal onto the AC power signal; an AC circuit (411) to supply the AC power and the PLC signal; and a PLC blocking line filter (450) to filter the PLC signal from passing to the AC power input. An associated method for a system having plural PLC transmitters connected to plural PLC enabled devices via plural AC circuits each associated with one of the PLC transmitters, includes: setting PLC network IDs for each of the PLC enabled devices to a default PLC network ID, and then assigning each of the PLC enabled devices connected to each of the PLC transmitters to a PLC network ID uniquely assigned that PLC transmitter.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: September 18, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Bradford Thomas Kolsky, Jonathan Shai Seidmann, Kenneth Bruns
  • Patent number: 10018070
    Abstract: A turbo-machine, which can be operated in an optimized driving range is provided. To this end, a method for operating a turbo-machine having at least one turbo-machine stage, which has at least one rotary shaft is disclosed. According to the method, the following method steps are carried out: a) determining a desired efficiency characteristic value ?soll of the turbomachine stage; b) determining an actual efficiency characteristic value ?ist of the turbo-machine-stage; c) determining a comparison efficiency characteristic value of the turbo-machine stage by comparing the actual efficiency characteristic value ?ist and the desired efficiency characteristic value ?soll to one another; and d) changing at least one operating parameter of the turbo-machine stage subject to the comparison efficiency characteristic value ?vgl, wherein in order to determine the actual efficiency characteristic value ?ist, a measuring of a torque of the rotary shaft of the turbo-machine-stage is carried out.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: July 10, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Hans-Gerd Brummel, Dirk Grieshaber, Uwe Pfeifer, Huub De Bruyn
  • Patent number: 10006440
    Abstract: A method of operating a variable speed wind turbine as a function of a wind speed is disclosed. The method comprises following a power curve describing the operation of the wind turbine as a function of wind speed in steady-state conditions. The method further comprises changing the pitch angles of the blades in transient conditions in which the wind turbine cannot follow the power curve in the second operational range.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: June 26, 2018
    Assignee: GE Renewable Technologies Win B.V.
    Inventor: Isaac Pineda Amo
  • Patent number: 9823720
    Abstract: A method for verifying interconnection of a PSE and PD with 4-pair PoE capabilities includes performing a first classification event on first and second pairs, respectively, and detecting a first predetermined class current on first and second sets of twisted pairs, respectively. The method includes performing a second classification event on first and second pairs, respectively, and detecting first and second predetermined class currents on first and second pairs, respectively. After expiration of a first variable delay period related to a first pseudo-random variable of the PSE, the method includes performing a third classification event on the first pair and detecting a first derived class current on the first pair. After expiration of a second variable delay period related to a second pseudo-random variable of the PD, the method includes performing the third classification event on the second pair and detecting a second derived class current on the second pair.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: November 21, 2017
    Assignee: Cisco Technologies, Inc.
    Inventors: Hugh Barrass, Anoop Vetteth
  • Patent number: 9742187
    Abstract: A power supply circuit includes a protection circuit interconnected with an input voltage to the power supply. The protection circuit includes a detection circuit to detect whether a magnitude of the input voltage is below a defined threshold. The detection circuit comprises a plurality of detectors, each for detecting for a defined voltage waveform, whether its magnitude is below a defined threshold voltage. Logic interconnects the detection circuit to provide a control signal for inhibiting the power supply from providing said output voltage if the input voltage is below the defined threshold for that defined voltage waveform, as detected by the detection circuit.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: August 22, 2017
    Assignee: Siemens Canada Limited
    Inventor: Salim Solomon
  • Patent number: 9647456
    Abstract: A power management circuit and a method for operating a power management circuit are described. In one embodiment, a power management circuit includes power switching modules. Power is supplied to each of the power switching modules by at least one of multiple power sources. Each of the power switching modules includes a latch circuit configured to have a definite state at power-up of a corresponding power source and a logic circuit configured to control power supplied from the corresponding power source in response to the definite state of the latch circuit, where the logic circuit includes a cross-coupled circuit. Other embodiments are also described.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: May 9, 2017
    Assignee: NXP B.V.
    Inventor: Mukesh Balachandran Nair
  • Patent number: 9548613
    Abstract: A system for sinking maintain power signature (MPS) current to a rectifier bridge from a powered device (PD) controller in a Power over Ethernet (PoE) network is disclosed. In one or more implementations, the system includes a rectifier bridge configured to electrically connect to Power over Ethernet power sourcing equipment for receiving power from the power sourcing equipment. The system also includes a powered device controller operatively connected to the rectifier bridge and configured to control power supplied to a load. The load is configured to receive power from the power sourcing equipment and a second power source. The powered device controller is configured to source maintain power signature current to the power sourcing equipment using an input of the rectifier bridge when the second power source is furnishing power to the load.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: January 17, 2017
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Andrea Vigna, Mauro Ranzato, Gianluca Mariano, Gaoling Zou, Thong A. Huynh
  • Patent number: 9419439
    Abstract: It is described a method for coupling plural wind turbines to a utility grid after the wind turbines have been disconnected from the utility grid, the method comprising: closing a main breaker arranged between the utility grid and a main transformer resulting in reactive current flowing from the utility grid to the main transformer; closing a first feeder switch arranged between the main transformer and a first group of wind turbines of the plural wind turbines; selecting a first reference voltage; operating first converters of the first group of wind turbines in a voltage control mode according to the first reference voltage; and closing a second feeder switch.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: August 16, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventor: Kaj Skov Nielsen
  • Patent number: 9369176
    Abstract: A method for verifying interconnection of a PSE and PD with 4-pair PoE capabilities includes performing a first classification event on first and second pairs, respectively, and detecting a first predetermined class current on first and second sets of twisted pairs, respectively. The method includes performing a second classification event on first and second pairs, respectively, and detecting first and second predetermined class currents on first and second pairs, respectively. After expiration of a first variable delay period related to a first pseudo-random variable of the PSE, the method includes performing a third classification event on the first pair and detecting a first derived class current on the first pair. After expiration of a second variable delay period related to a second pseudo-random variable of the PD, the method includes performing the third classification event on the second pair and detecting a second derived class current on the second pair.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: June 14, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Hugh Barrass, Anoop Vetteth
  • Patent number: 9348389
    Abstract: A power measurement system for multiple power sources includes a plurality of measurement apparatuses, a multiplexer, and a processing module. Each of the measurement apparatuses has a sense resistor and a sense amplifier. The sense resistor is electrically connected to a power source at one terminal thereof and electrically connected to a load at the other terminal thereof. The sense amplifier receives a voltage difference across the sense resistor, amplifies the voltage difference by a gain value, and outputs an amplified sense voltage. The multiplexer receives the amplified sense voltages and outputs one of the amplified sense voltages. The processing module receives the one amplified sense voltage outputted from the multiplexer and calculates an output power of the power source according to the one amplified sense voltage. Furthermore, a method of operating the power measurement system is provided.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: May 24, 2016
    Assignee: Getac Technology Corporation
    Inventor: Hsin-Chih Lin
  • Patent number: 9165661
    Abstract: Systems and methods for switching between voltages are provided. One system includes an output, first and second switches coupled to the output. The system also includes a first transmission gate coupled to the first switch and a second transmission gate coupled to the second switch. One method includes receiving, at the first transmission gate, a first pair of complementary voltages and receiving, at the second transmission gate, a second pair of complementary voltages. The method further includes selecting the smallest voltage amongst both pairs of complementary voltages and outputting a third pair of complementary voltages. In one method, the first pair of complementary voltages includes a first negative voltage and a positive voltage, the second pair of complementary voltages includes a second negative voltage and the positive voltage, and the third pair of complementary voltages includes the smaller of the first and second negative voltages and the positive voltage.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: October 20, 2015
    Assignee: Cypress Semiconductor Corporation
    Inventors: Ashish A. Amonkar, Leonard Gitlan
  • Patent number: 9112381
    Abstract: A power distribution grid comprising a plurality of cells configured to be electrically connected to each other and a power management system. A cell in the plurality of cells is configured to distribute electrical energy to an area corresponding to the cell. The cell has a plurality of entry nodes configured to allow the electrical energy to flow into the cell. The power management system is configured to manage a distribution of the electrical energy to the area by the cell independently of the distribution of the electrical energy to other areas by other cells in the plurality of cells.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: August 18, 2015
    Assignee: THE BOEING COMPANY
    Inventors: Michael A. Carralero, Jimmy Manansala Quiambao
  • Patent number: 9093913
    Abstract: A switching power supply includes a rectifying unit configured to rectify an input alternating voltage, a storage unit configured to smooth the voltage rectified by the rectifying unit and store as a DC voltage, a pulse signal generation unit configured to generate a pulse signal from the DC voltage stored in the storage unit, and a detection unit configured to detect that a commercial alternating current power supply has been turned off based on the pulse signal generated by the pulse signal generation unit.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: July 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinichiro Matsumoto
  • Patent number: 9024476
    Abstract: A power converter includes a first power input to receive AC input power, a second power input to receive backup power, a first DC bus configured to provide a positive DC output voltage, a second DC bus configured to provide a negative DC output voltage, and a power conversion circuit coupled to the first DC bus and the second DC bus. The power conversion circuit has an inductor, a first switch device coupled in series with the inductor, a second switch device coupled in series with the first switch device, and a bypass relay coupled in parallel with the second switch device. The power conversion circuit is switchably coupled to the first power input and the second power input, and is operable to charge the inductor and generate the positive and negative DC output voltages.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 5, 2015
    Assignee: Schneider Electric IT Corporation
    Inventors: Rajesh Ghosh, Mahendrakumar Lipare, Damir Klikic
  • Patent number: 9024474
    Abstract: Systems and methods of providing power with an uninterruptible power supply are provided. The uninterruptible power supply includes a first input to receive an input AC voltage from a power source, the input AC voltage having an associated phase angle, and a second input to receive an input voltage from a backup power source. The uninterruptible power supply also includes an output. The output provides output power derived from power from at least one of the power source and the backup power source. The uninterruptible power supply also includes an inverter coupled to the backup power source, a relay and a controller. The relay is configured to couple the first input with the output in a first position, and to couple the inverter with the output in a second position.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: May 5, 2015
    Assignee: Schneider Electric It Corporation
    Inventors: Lynn Ernest Schultz, Noah L. Pendleton, Vishwas Mohaniraj Deokar
  • Patent number: 9018906
    Abstract: The battery pack that recognizes operation voltage of a corresponding device according to a unique resistance of the connected device and sensed through a third external terminal of the battery pack, the battery pack having a plurality of cells that can be coupled in series or in parallel to be suitable for an operation voltage of the corresponding device. The battery pack can be sold to a consumer to enable the consumer to power a variety of different electrical appliances. Alternatively, the battery pack can be incorporated into a chassis of an electrical apparatus so that the battery pack can be sold to many different manufacturers of electrical appliances.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: April 28, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-Ryun Park, Seok Koh, Kyung-Ho Park
  • Patent number: 8975782
    Abstract: A power Y-adapter provides power at a high voltage to an output end from at least two input ends to which power of a lower voltage and a phase difference is provided and includes a first polarity sensitive current isolation device, a second polarity sensitive current isolation device, a control section, and an output section. When the voltage signals supplied to the hot wire terminals of the first input connector and the second input connector sufficiently are out of phase, the Y-adapter can produce a voltage of higher magnitude between the first and the second hot wire terminals of the output connector.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: March 10, 2015
    Assignee: Power Products, LLC
    Inventor: Kenneth E. Pagenkopf
  • Patent number: 8975780
    Abstract: An appliance including an electrically-powered system, a primary power input, and an auxiliary power input is provided. The electrically-powered system is disposed within a housing. The primary power input is configured to supply electrical energy to the electrically-powered system. However, the housing generally hampers access to the primary power input after installation of the appliance. Therefore, the auxiliary power input, which is also configured to supply electrical energy to the electrically-powered system, is readily accessible relative to the primary power input after installation of the appliance.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: March 10, 2015
    Inventor: Martin A. Urban
  • Patent number: 8963375
    Abstract: Devices and methods for electrically decoupling a solar module from a solar system are described. In one embodiment, a solar system includes a string of a plurality of solar modules coupled with an inverter through a DC power line. An AC input is coupled with the DC power line. A device is also included and is configured to provide a closed circuit for one of the plurality of solar modules if an AC signal voltage from the AC input is present on the DC power line, and is configured to provide an open circuit for the one of the plurality of solar modules if no AC signal voltage from the AC input is present on the DC power line.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: February 24, 2015
    Assignee: SunPower Corporation
    Inventor: David DeGraaff
  • Patent number: 8963625
    Abstract: A microcomputer includes a first switch coupled between a main power supply terminal and a power supply node, and a second switch coupled between an auxiliary power supply terminal and the power supply node. The microcomputer compares a voltage V1 of the main power supply terminal with a reference voltage VR1. When V1>VR1, the microcomputer turns on the first switch and turns off the second switch, and when V1<VR1, the microcomputer turns off the first switch, and turns on/off the second switch to gradually increase a voltage V3 of the power supply node. Thus, the operation of a clock generation circuit driven by V3 can be stable even when V3 is changed from V1 to V2.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: February 24, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Yuichiro Miwa, Masahiro Kitamura
  • Patent number: 8946933
    Abstract: A power management apparatus and a method of operating the same are disclosed. The power management apparatus includes a power conversion unit, a first sensing unit, a second sensing unit, a switch unit, and a control unit. The power conversion unit converts output power generated from at least one renewable energy generation apparatus. The first sensing unit is provided to sense a first current and a first voltage and the second sensing unit is provided to sense a second current and a second voltage. The control unit acquires an output power generated from the renewable energy generation apparatus and acquires a feedback power to an AC utility according to the currents and the voltages when the control unit turns on the switch unit.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: February 3, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Chen-Wei Ku, Lei-Ming Lee, Ho Huang