Digital Control Patents (Class 361/93.2)
  • Patent number: 10839624
    Abstract: A method for providing Electronic Circuit Breaker (ECB) data onboard an aircraft is provided. The method obtains a current checklist applicable to current operations of the aircraft, by a processor communicatively coupled to an ECB system associated with the aircraft; obtains mapping data comprising mappings of aviation checklists mapped to associated ECB data, by the processor; identifies a subset of the ECB data associated with the current checklist, based on the mapping data, by the processor, wherein the current checklist includes a plurality of checklist tasks, and wherein the subset comprises at least one of the plurality of ECL tasks that includes an ECB instruction; filters the current checklist to create a filtered ECB list of the at least one of the plurality of checklist tasks, by the processor; and presents the filtered ECB list, via an ECB display onboard the aircraft.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 17, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haidong Huang, Guoqing Wang, Chuanbo Liang, Jianfeng Guo
  • Patent number: 10804692
    Abstract: A solid-state circuit protector includes a first power semiconductor device having an ON resistance that increases with increasing temperature and a second power semiconductor device connected in parallel with the first power semiconductor device having an ON resistance that decreases with increasing temperature. During times when abnormally high currents are flowing through the solid-state circuit protector, the second power semiconductor is switched ON so that some or all of the current is diverted through it, thus protecting the first power semiconductor device from being damaged due to overheating. The first power semiconductor device is either switched OFF, allowing it to cool in anticipation of a lighter load, or is configured to remain ON so that it shares the burden of carrying the high current with the parallel-connected second power semiconductor device yet operates cooler and at a lower ON resistance since it is not required to pass the full current.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: October 13, 2020
    Assignee: Atom Powers, Inc.
    Inventors: Ryan Kennedy, Denis Kouroussis
  • Patent number: 10714923
    Abstract: In electronic systems, the downstream circuitry may be damaged by overcurrent and overvoltage events. Therefore, there is provided a dual protection device for protecting electrical components in electronic systems. The protection device includes a mechanical fuse in conjunction with an electronic fuse, eFuse, the two components connected in series, together protecting against overcurrent events on two levels. The mechanical fuse provides high overcurrent protection, realising fast and reliable protection at high overcurrent events, and the electronic fuse provides low overcurrent protection, realising accurate and resettable protection for low overcurrent events.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 14, 2020
    Assignee: Analog Devices Internatianal Unlimited Company
    Inventors: Paul O'Sullivan, Maurice O'Brien, Donal G. O'Sullivan
  • Patent number: 10707654
    Abstract: A power distributor having a first controller and having a number of connection modules which are connected thereto and are intended to be mounted on a supporting rail. The connection module has a number of lateral coupling contacts for the electrical and/or signalling contact connection to at least one further connection module which is attached or can be attached to the particular connection module, wherein a base resistor is connected in each case between two coupling contacts inside the module in such a manner that the base resistors of the attached connection modules form a resistor chain which is connected in series. The connection modules are each equipped or can be equipped with an actuatable circuit breaker. The circuit breakers have a second controller inside the circuit breaker for recording a voltage dropped across the respectively associated base resistor.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: July 7, 2020
    Assignee: Ellenberger & Poensgen GmbH
    Inventor: Diego Fernando Asanza Maldonado
  • Patent number: 10581311
    Abstract: A control device for a power conversion device that is capable of detecting current abnormality of the power conversion device with no delay is provided. The control device for the power conversion device includes a current detection unit for outputting an error signal when a detection value of a current sensor for detecting current flowing through the power conversion device is larger than a preset overcurrent determination value, and outputting a state detection value larger than a value corresponding to the error signal based on the error signal, and an abnormality detection unit for accepting an input of the state detection value of the current detection unit via the wiring, and an abnormality detection unit for outputting an error signal when the state detection value of the current detection unit is larger than a preset overcurrent abnormality determination value, and detecting abnormality based on the error signal.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: March 3, 2020
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Naoya Shibata, Masahiro Kinoshita
  • Patent number: 10566781
    Abstract: An input/output (I/O) buffer circuit includes an I/O unit and a protection circuit. The I/O unit selectively receives and outputs signals based on an enable signal. The protection circuit generates a logic control signal to deactivate the I/O unit in a state where a voltage level of the I/O terminal is abnormal. The protection circuit includes a register. The register latches a logic signal corresponding to the voltage level of the I/O terminal in a state where the voltage level of the I/O terminal is abnormal, outputs the logic control signal based on the logic signal, and is preset to output the logic control signal based on the logic signal when a power-off state resumes to a power-on state.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: February 18, 2020
    Assignee: Nuvoton Technology Corporation
    Inventors: Cheng-Chih Wang, Chai-Teck Gan
  • Patent number: 10554035
    Abstract: An arc detector includes a current sensor, a power spectrum conversion unit that converts an output from the current sensor to a power spectrum, a section value obtaining unit that divides an arc measurement section for the power spectrum into a plurality of regions, and obtains, from region values for the plurality of regions excluding a maximum one of the region values, a region value to be a section value of the arc measurement section, and an arc determination unit that determines a presence of an arc by comparing the section value with a threshold.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: February 4, 2020
    Assignee: OMRON Corporation
    Inventors: Kohei Tomita, Toru Fujii, Reiko Hattori, Takeshi Ashida
  • Patent number: 10153118
    Abstract: A frame module for a circuit breaker includes a first interface structured to connect to a trip unit, a second interface structured to connect to a frame, and a current rating storage unit structured to store a current rating associated with the frame and to provide the stored current rating to the trip unit when the trip unit is connected to the first interface.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: December 11, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: James Leo Lagree, David Raymond Rohn, Paul Richard Rakus, Robert Frederick Brooks, Yibo Chen
  • Patent number: 10152880
    Abstract: Systems, methods and media for remote control of electronic devices using a proximity sensor are provided. In some implementations, the system comprises: a proximity sensor comprising an infrared emitter and an infrared detector, wherein the proximity sensor is configured to emit infrared light having specific properties using the infrared emitter and sense reflected light having the specific properties using the infrared detector to determine proximity of the sensor to an object; and a hardware processor that is programmed to: receive a user instruction to cause a command to be issued to control an electronic device; determine a code to be transmitted that corresponds to the command from a plurality of codes associated with the electronic device; and provide at least one signal to the proximity sensor to cause the proximity sensor to emit an infrared signal corresponding to the code instead of emitting infrared light having the specific properties.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: December 11, 2018
    Assignee: Google LLC
    Inventor: Honglei Wu
  • Patent number: 9983611
    Abstract: A system includes a first set of conductors coupled to at least one power source; a second set of conductors coupled to a first power consuming portion of an integrated circuit; multiple power gates coupled between the first and second sets of conductors; and a control circuit configured to gradually activate the multiple power gates during an activation period to provide a nonlinear rate of change of an impedance between the first and the second sets of conductors during the activation period.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 29, 2018
    Assignee: Amazon Technologies, Inc.
    Inventor: Ronen Boneh
  • Patent number: 9899926
    Abstract: A power supply device includes a primary winding and at least a first secondary winding connected to a load, a power supply to which the primary winding is connected, a switch configured to adjust a first current flowing through the primary winding, an adjustment amount generation device and a control device. The adjustment amount generation device is configured to generate an adjustment amount to reduce a change in the first current depending at least in part on a change in an output voltage of the power supply supplied to the load. The control device is configured to control the switch based at least in part on the first current, a voltage produced in secondary winding, and the adjustment amount.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 20, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Hiroaki Kojima
  • Patent number: 9847201
    Abstract: A circuit protection apparatus includes separable contacts, an operating mechanism, an electronic trip unit storing a plurality of trip parameter combinations, wherein each of the trip parameter combinations specifies a certain value for each of a plurality of individual trip parameters, and a multi-position selector moveable among a plurality of predetermined positions and configured to enable selection of one of the predetermined positions. Each of the positions corresponds to a respective one of the trip parameter combinations, wherein the electronic trip unit is structured to, responsive to a chosen one of the plurality of predetermined positions being selected by the multi-position selector, cause the one of the trip parameter combinations corresponding to the chosen one of the plurality of predetermined positions to be used by the electronic trip unit to determine whether to cause the operating mechanism to trip open the separable contacts.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 19, 2017
    Assignee: Eaton Corporation
    Inventor: David Raymond Rohn
  • Patent number: 9762117
    Abstract: A sense voltage obtained by feeding a sense current of an IGBT into a sense resistor is input to a comparator, and as the reference voltage of the comparator, a sense voltage immediately before the IGBT is turned off is held by a sample and hold circuit for each switching, and is then divided by a voltage dividing circuit and the divided voltage is input to the comparator. The comparator compares the sense voltage with the voltage based on the sense voltage immediately before the IGBT is turned off, and therefore the comparator may accurately detect the falling edge time of the sense voltage and is used for the control for dissolving the imbalance in current with respect to the other IGBTs connected in parallel.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: September 12, 2017
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Masahiro Sasaki
  • Patent number: 9488714
    Abstract: A computer for continuous calibration of circuit breaker trip units and metering devices includes a processor and a memory device. The computer is configured to request and receive circuit breaker current data from a plurality of circuit breaker trip units. The circuit breaker current data represents current data associated with the circuit breaker trip units over a collection interval. The computer is configured to receive main current data from a main trip unit. The computer is configured to determine a plurality of calibration factors for the circuit breaker trip units based upon the circuit breaker current data and the main current data. The computer is additionally configured to transmit the calibration factors to the circuit breaker trip units.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 8, 2016
    Assignee: General Electric Company
    Inventor: John James Dougherty
  • Patent number: 9379907
    Abstract: An intelligent electronic device (IED) for monitoring/measuring parameters of electrical services to a plurality of loads and receiving/transmitting information over communication networks is disclosed. The electrical services may be connected to the same or different AC services. The IED may be configured as a terminal or a server of an Intranet, LAN, WAN, or the Internet. In one application, these techniques are implemented in IEDs such as digital electrical power and energy meters.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: June 28, 2016
    Assignee: Electro Industries/Gauge Tech
    Inventors: Andrew Kagan, Erran Kagan
  • Patent number: 9276393
    Abstract: Circuit interrupting devices are provided. One circuit interrupting device includes a fault sensor configured to output a sensor signal; a voltage sensor configured to sense a reference voltage; and a controller configured to determine an occurrence of an actual fault based on the sensor signal and the reference voltage. The circuit interrupting device further includes an amplifier configured to receive the sensor signal and the reference voltage and output an amplified signal; an analog-to-digital converter configured to receive the reference voltage and the amplified signal and output respective digital signals corresponding to the reference voltage and the amplified signal; and a line interrupt assembly configured to interrupt current flow through a conductive path when a characteristic of the sensor signal exceeds an actual fault threshold.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: March 1, 2016
    Assignee: Leviton Manufacturing Co., Inc.
    Inventor: Michael Ostrovsky
  • Patent number: 9250282
    Abstract: A method of determining a fault parameter of a fault on an AC transmission line 10 of a power distribution system 1 relative to a measurement location 12 of the transmission line 10 comprising: measuring a time-dependent current of the transmission line 10 at the measurement location 12; transmitting a current signal indicative of the measured current to a decision logic section 36, the current signal comprising a plurality of pre-fault current values and a plurality of post-fault current values; determining, by the decision logic section 36, a plurality of phase difference values indicative of respective phase differences between respective pre-fault current values and respective post-fault current values; accumulating the plurality of phase difference values into an accumulated phase difference parameter; obtaining the fault parameter by comparing the accumulated phase difference parameter to a threshold value; and outputting the determined fault parameter.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: February 2, 2016
    Assignee: ABB RESEARCH LTD
    Inventors: Abhisek Ukil, Bernhard Deck, Vishal H. Shah
  • Patent number: 9252587
    Abstract: An apparatus and method for selectively automatically resetting an electronic protection device. The electronic protection device may protect a motor load by disconnecting the load from a power source when the current drawn by the load exceeds a threshold, when the power source suffers from a phase imbalance or phase loss, or when another condition is detected. The electronic protection device discriminates between different types of fault conditions and determines whether to suppress an automatic reset function of the device. The electronic protection device includes a reset energy storage device for automatically resetting the electronic protection device following a trip event using energy from the reset energy storage device. In operation, the electronic protection device detects a fault condition not calling for an automatic reset, then discharges the reset energy storage device and trips the electronic protection device before the reset energy storage device recharges.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: February 2, 2016
    Assignee: SCHNEIDER ELECTRIC USA, INC.
    Inventors: Kevin Jefferies, Philippe Guibert, Pablo Garcia Viano
  • Patent number: 9209686
    Abstract: The DC-DC converter includes a mask controlling circuit that outputs an overcurrent detection mask signal that prescribes a mask period in which the overcurrent detection result signal is masked. The DC-DC converter includes a mask adjusting circuit that adjusts a length of the mask period according to the power supply voltage. The DC-DC converter includes an operation circuit that performs an operation of the overcurrent detection result signal and the overcurrent detection mask signal and outputs an overcurrent controlling signal with the overcurrent detection result signal being masked in the mask period.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: December 8, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsukasa Miura, Hideki Kimura, Sadao Ikeda
  • Patent number: 9124286
    Abstract: Systems and methods for protecting an analog-to-digital converter (ADC) are provided. The provided systems and methods utilize comparators in a circuit of a stage of the ADC to compare a reference signal to an input signal and output one or more maximum signals when the input signal exceeds the reference signal. A decoder in the stage of the ADC may output a reset signal to another circuit in the stage of the ADC when a predetermined number of the maximum signals are received. When the other circuit receives the reset signal, the ADC may enter a protection mode to protect the ADC by ensuring that the excessive input signal is not propagated to subsequent stages.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: September 1, 2015
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Stéphane Bouvier, Sylvain Dumont, Luis Rolindez
  • Patent number: 9086834
    Abstract: In one embodiment, the present invention includes a processor having a plurality of cores each to execute instructions, a non-volatile storage to store maximum peak operating frequency values each a function of a given number of active cores, a configuration storage to store frequency limits each corresponding to one of the maximum peak operating frequency values or a configurable clip frequency value less than the maximum peak operating frequency value. In turn, a power controller is configured to limit operating frequency of the cores to a corresponding frequency limit obtained from the configuration storage. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: July 21, 2015
    Assignee: Intel Corporation
    Inventors: Jeremy J. Shrall, Stephen H. Gunther, Krishnakanth V. Sistla, Ryan D. Wells, Shaun M. Conrad
  • Patent number: 9075556
    Abstract: In one embodiment, the present invention includes a processor having a plurality of cores each to execute instructions, a non-volatile storage to store maximum peak operating frequency values each a function of a given number of active cores, a configuration storage to store frequency limits each corresponding to one of the maximum peak operating frequency values or a configurable clip frequency value less than the maximum peak operating frequency value. In turn, a power controller is configured to limit operating frequency of the cores to a corresponding frequency limit obtained from the configuration storage. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 7, 2015
    Assignee: Intel Corporation
    Inventors: Jeremy J. Shrall, Stephen H. Gunther, Krishnakanth V. Sistla, Ryan D. Wells, Shaun M. Conrad
  • Patent number: 9041326
    Abstract: A method for operating a brushless electric motor, the windings being energized by an inverter with the aid of six switches. A detection unit for detecting defective switches, a unit for measuring voltage at the outputs of the inverter, and a microcontroller for controlling the switch and for generating a pulse width modulated voltage supply for the windings are provided. A short-circuited switch causes a torque in the electric motor opposite the actuating direction of the electric motor. The method proposes that after detecting a short-circuited switch, the windings (U. V. W) are energized to generate a motor torque that is, on the whole, positive. An actuating period of the electric motor is divided into a plurality of sectors, wherein, in accordance with the defective switch, individual sectors are deactivated for the actuation of the windings (U, V, W), while other sectors are used to actuate the windings (V, W).
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: May 26, 2015
    Assignee: Continental Automotive GmbH
    Inventors: Christian Gunselmann, Mathias Fernengel, Nicolas Bruyant, Lionel Guichard, Michel Parette
  • Patent number: 9030794
    Abstract: An electronic fuse apparatus is connected between a power side and a system side. The electronic fuse apparatus mainly includes an electronic fuse, a short-circuit protection switch, a current-sensing module, and a digital control module. The current-sensing module detects an operating current which flows from the power side to the system side. The digital control module generates a control signal to control the electronic fuse. When the current-sensing module detects that the operating current is over-current, the digital control module generates the high-level control signal to turn off the electronic fuse, thus providing an over-current protection. When a short-circuit fault occurs at the system side, the short-circuit protection switch is turned on to turn off the electronic fuse, thus providing a short-circuit protection.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: May 12, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Ching-Long Tsai, Yi-Hsin Leu, Ming-Tsung Hsieh, Der-Min Liu
  • Patent number: 9013851
    Abstract: Disclosed is an inrush current control circuit for controlling current into a high-current circuit block. The inrush current control circuit comprises a number of distributed switches and a digital control circuit coupled to at least one of the distributed switches. The digital control circuit is configured to switch a first group of the distributed switches in response to an enable/disable signal. The digital control circuit is further configured to switch a second group of the distributed switches after a first programmable delay. According to one embodiment, a method comprises switching a first group of distributed switches by a digital control circuit of an inrush current control circuit in response to an enable/disable signal, and switching a second group of the distributed switches by the digital control circuit after a first programmable delay, thereby resulting in regulation of a flow of an inrush current.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: April 21, 2015
    Assignee: Broadcom Corporation
    Inventors: David Anthony Kidd, Ramesh Senthinathan
  • Patent number: 8929044
    Abstract: An overvoltage detection system includes a sensed voltage; an active reference module that generates an active reference signal having a magnitude that varies inversely with a magnitude of the sensed voltage; and a timed trip module that includes a resistor and capacitor, and detects an overvoltage condition as a function of the sensed voltage, the active reference signal, and time.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: January 6, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Adrian E. Vandergrift
  • Patent number: 8924169
    Abstract: In at least one embodiment, the inventive technology may involve arc detection methods and apparatus for use in photovoltaic power systems. One general aspect may involve the determination of lower noise regions of a fourier transformation of a parameter (e.g., voltage, current or power) signal measurement at a location in the system, and a comparison of fourier transformed signal values at such locations at different times to assess atypical increases in value and thus possible arcing. Polling protocols may be used to further reduce false positives. Certain other aspects may relate to comparison of synchronized voltage measurements to assess presence of arc condition. Any aspect may involve automatic, positive arc condition response circuitry that acts to automatically mitigate undesired effects of an arc in the event of arc detection.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 30, 2014
    Assignee: AMPT, LLC
    Inventors: Anatoli Ledenev, Wesley R. Fuller
  • Publication number: 20140368961
    Abstract: Disclosed is a control and protection device for a low-voltage electrical apparatus, comprising a pedestal and a control and protection module. The control and protection module may be plugged into the pedestal and is replaceable. The pedestal comprises a base and a housing, and is further provided with a moving contact, a static contact, and a current conductor connected to a main circuit current; a control electromagnet operation mechanism for controlling close and open of the moving contact and the static contact according to a control signal, and maintaining a close or open status of the moving contact and the static contact; a manual operation knob providing a control signal for controlling the close and open of the moving contact and the static contact; a control contact connected to the manual operation knob; and a current sensor for detecting a current that flows through the main circuit current conductor and generating a sensing signal.
    Type: Application
    Filed: December 25, 2012
    Publication date: December 18, 2014
    Applicants: ZHEJIANG CHINT ELECTRICS CO., LTD., SEARI ELECTRIC TECHNOLOGY CO., LTD.
    Inventors: Hong Xi, Ping Zeng, Huiyu Ji, Feng Jia, Changxun Gu, Di Zhang, Beiming Huang, Jianrong Lin
  • Patent number: 8913363
    Abstract: An overcurrent protection circuit includes: a determiner configured to determine whether or not the switch current exceeds a predetermined threshold, that is, the switch current is an overcurrent state when the switching element is turned ON; an OFF period setting counter configured to increase or decrease a counter output depending on a determination result of the determiner; and a drive signal generator configured to generate a drive signal of the switching element such that a length of an ON timing interval of the switching element corresponds to the counter output of the OFF period setting counter.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: December 16, 2014
    Assignee: Panasonic Corporation
    Inventors: Go Takata, Yasunori Yamamoto
  • Patent number: 8907751
    Abstract: A power circuit breaker is disclosed wherein an electric current is monitored by an electronic trip unit in order to detect an electrical fault. In an embodiment, a first magnetic device of the power circuit breaker, in the event of a fault being detected, is configured to be excited which, when it is excited, trips a trip mechanism via a plunger. As a result of tripping, the trip mechanism disconnects two contacts via which the current flows. The power circuit breaker of an embodiment includes a second magnetic device which is likewise able to be excited by the ETU and by which the trip mechanism is likewise able to be tripped.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 9, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andre Borgwardt, Thomas Driehorn, Peter Kopaczewski, Andreas Krauβ, Aron-Ernst Musiol, Gerd Müller
  • Patent number: 8860455
    Abstract: Methods and systems to measure a signal on an integrated circuit die. An on-die measurement circuit may measure an on-die signal relative to an off-die generated reference signal, which may include a series of increasing voltage steps. The on-die measurement circuit may continuously compare voltages of the on-die signal and the off-die generated reference signal, and may generate an indication when the off-die reference signal exceeds the on-die signal. The measurement circuit may generate the indication from a voltage source other than the on-die signal to be measured, and/or may generate the indication with a relatively large voltage swing. The indication may be output off-die for evaluation, such as for testing, debugging, characterization, and/or operational monitoring. A unity gain analog buffer may be provided to tap the on-die signal proximate to a node of interest, which may be implemented within the on-die measurement circuit.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: October 14, 2014
    Assignee: Intel Corporation
    Inventor: Vinu K. Elias
  • Publication number: 20140301008
    Abstract: A method for detecting an electrical arc in a photovoltaic installation includes measurement (E6) of voltage values at at least one point of the electrical circuit of the photovoltaic installation; digitization (E8) of the measured voltage values to form a sampling of data x; calculation (E10) of an estimation value y of the presence of an electrical arc based on a statistical calculation on the sampling of data and the inclusion of an omission factor ?; and comparison (E12) of the estimation value y of the presence of an electrical arc with a threshold value to deduce therefrom the presence or absence of an electrical arc in the photovoltaic installation.
    Type: Application
    Filed: December 6, 2012
    Publication date: October 9, 2014
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Cédric Gouy-Pailler, Nicolas Chaintreuil
  • Patent number: 8773094
    Abstract: An alternating current (AC) line emulator includes an AC power supply and an automatic regulating load. The AC power supply is used for providing an AC line frequency and an AC line voltage. The automatic regulating load is coupled between the AC power supply and a grid-connected power generation system for functioning as a test load of the grid-connected power generation system, and preventing current from reversing to the AC power supply and shutting down the AC power supply. When the grid-connected power system is tested, power consumption of the automatic regulating load is equal to a sum of output power of the grid-connected power generation system and output power of the AC power supply.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: July 8, 2014
    Assignee: Motech Industries Inc.
    Inventors: Yung-Hsiang Liu, Kuo-Hsin Chu, Hsu-Chin Wu, Hwai-Ching Shi, Wei-Kang Liang
  • Publication number: 20140146431
    Abstract: In at least some embodiments, a system includes a plurality of circuit breakers and trip control logic external to and coupled to the circuit breakers. The trip control logic enables a plurality of different tripping options to be selected for each of the circuit breakers.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Applicant: Edison Global Circuits, LLC
    Inventors: Jeffrey L. Franks, Stephen E. Williams, Ray Cole
  • Patent number: 8717032
    Abstract: A protection switching system in a power supply distribution system, comprises at least one protection switch (25) comprising a controllable semiconductor arranged to conduct current through the power supply line in a normal mode, a control unit (27) arranged to place the at least one protection switch in a test mode in which the current is reduced compared to the normal mode, registration means (28, 29) for registering a test mode value of at least one electrical characteristic in the power supply line that will be affected when the test mode is applied, a monitoring unit (30; 47) arranged to evaluate the at least one electrical characteristic and determine, based on the evaluation, whether or not an action should be taken. If a malfunction is detected an alarm is issued to indicate to service personnel that the protection switch should be replaced.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: May 6, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Johan Horman, Hans Kramer
  • Publication number: 20140118875
    Abstract: A circuit interrupter system includes a circuit interrupter including a processing unit, a serial port interface operatively coupled to the processing unit for enabling communication with the processing unit, and a USB processing unit configured to run a USB stack and operatively coupled to the serial port interface for enabling communication with the processing unit through the serial port interface, and a portable computing device selectively connectable to the USB processing unit of the circuit interrupter through a USB connection, the portable computing device being structured to function as a USB host and to implement a graphical user interface for enabling communication between the portable computing device and the processing unit of the circuit interrupter through the serial port interface and the USB processing unit when the portable computing device is connected to the USB processing unit of the circuit interrupter.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: Eaton Corporation
    Inventors: Harry J. Carlino, David R. Rohn, Todd M. Shaak, David R. Olenak
  • Patent number: 8699195
    Abstract: Devices, such as mobile devices, may be exposed to short circuit and output overload events. To protect against such events, mobile devices typically include current limit circuits. Some current limit circuits may involve user programmable function. User programmable function may need accurate current limit detectors. Various embodiments of the present invention include devices and methods for detecting one or more programmed current limits. Some embodiments allow for a user application to select among parallel or serial configurations of current detection circuitry. Each such configuration may include multiple resistive devices of different resistive values.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: April 15, 2014
    Assignee: Advanced Analogic Technologies Incorporated
    Inventor: John So
  • Patent number: 8681463
    Abstract: In at least some embodiments, a system includes a plurality of circuit breakers and trip control logic external to and coupled to the circuit breakers. The trip control logic enables a plurality of different tripping options to be selected for each of the circuit breakers.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: March 25, 2014
    Assignee: Edison Global Circuits, LLC
    Inventors: Jeffrey L. Franks, Stephen E. Williams, Ray Cole
  • Patent number: 8674651
    Abstract: There is provided an electronic device that includes a heatsink and a set of IGBTs coupled to the heatsink and configured to deliver power to a field exciter and a battery. The electronic device also includes a temperature sensor disposed in the heatsink and a controller. The controller is configured to receive a temperature reading from the temperature sensor and, based on the temperature reading, determine a junction temperature for at least one of the IGBTs of the set of IGBTs. The controller is also configured to de-rate an output power provided by each of the IGBTs based, at least in part, on the junction temperature.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 18, 2014
    Assignee: General Electric Company
    Inventor: Dimitrios Ioannidis
  • Patent number: 8654496
    Abstract: A circuit breaker includes separable contacts, an operating mechanism to open and close the contacts, and a trip unit cooperating with the operating mechanism to trip open the contacts. The trip unit includes a first component having a processor and a first memory storing a first set of a plurality of trip unit settings, and a second component of the trip unit. The second component is separable from the first component or the trip unit, and includes a second memory storing a second set of a plurality of trip unit settings. The second component saves the first set of the plurality of trip unit settings as the second set of the plurality of trip unit settings in the second memory, and restores the second set of the plurality of trip unit settings in the first memory of the first component or of another first component of another trip unit.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: February 18, 2014
    Assignee: Eaton Corporation
    Inventors: John C. Schlotterer, Arthur A. Anderson, Randal P. Shvach
  • Patent number: 8644038
    Abstract: A current detection circuit for a power semiconductor device utilizes a sense function of the power semiconductor device. The magnitude of current flowing in power semiconductor devices 1, 11 is detected by a current-voltage conversion circuit 24 connected to sense terminals S, S of the power semiconductor devices. The detected signal is delivered to a current direction detection circuit 27, which detects the direction of the current and delivers the detected current direction signal to an external CPU 3, which in turn gives gain-setting and offset-setting signals corresponding to the current direction signal. An output gain adjuster 221 adjusts the magnitude of gain and an output offset adjuster 231 adjusts the magnitude of offset to correct for differences between the characteristics of the sense regions and the main regions of the power semiconductor devices.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: February 4, 2014
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Masahiro Sasaki
  • Patent number: 8625245
    Abstract: A method for protecting an electronic switch incorporated in an automotive vehicle in order to control the power supply of an electric load, the method including implementing a protection strategy, based on the use of a table of overload intensity values IS, intended to make it possible to detect and count the overshoots of the overload values IS, and to interrupt the operation of the electronic switch beyond a given number of overloads undergone. A table of overload intensities IS is established giving, for values of the power supply voltage that are greater than a predetermined voltage value VNbat, values IS=IT+?Ic, with ?Ic being identical for all the values, and for values of the power supply voltage that are less than or equal to VNbat, a constant value IS such that IS=IT(VNbat)+?Ic.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: January 7, 2014
    Assignees: Continental Automotive France, Continental Automotive GmbH
    Inventor: Jean-Marc Tornare
  • Patent number: 8625244
    Abstract: In one aspect, the invention provides a method for overcurrent sensing including; generating an analog output signal representative of a sensed AC current, generating a digital representation of the analog output signal using a plurality of discrete samples, determining those of the plurality of discrete samples having a substantially identical magnitude and estimating an amount of overcurrent in the sensed AC current by evaluating those of the plurality of discrete samples that have the substantially identical magnitude. In some embodiments, the substantially identical magnitude is a maximum magnitude represented by the digital representation.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 7, 2014
    Assignee: Schneider Electric IT Corporation
    Inventors: Namwook Paik, Vishwas M. Deokar
  • Patent number: 8624578
    Abstract: A tool for configuring a branch current monitor facilitates mapping the connections of branch circuits to voltage sources in a power distribution panel.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: January 7, 2014
    Assignee: Veris Industries, LLC
    Inventors: Matthew Rupert, Marc Bowman, Michael Bitsch, Martin Cook
  • Patent number: 8614872
    Abstract: A switching power source apparatus includes a high-side MOSFET 11, a ramp signal generator 18 to generate a ramp signal, an amplitude signal generator 2 to generate an amplitude signal Comp corresponding to an amplitude of the ramp signal, a superposing circuit 3 to generate a superposed signal by superposing a second ramp signal on a first reference voltage, a first feedback controller 1 to control the ON timing and ON width of the high-side MOSFET, an overcurrent detector to detect if a current of an output load is an overcurrent, and an OFF timer 26 to determine a period during which the high-side MOSFET 11 is forcibly turned off and generate a forcible OFF signal. If an overcurrent is detected, the controller 1 turns off the high-side MOSFET, and according to the forcible OFF signal, forcibly turns off the high-side MOSFET 11 for the determined period.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: December 24, 2013
    Assignee: Sanken Electric Co., Ltd.
    Inventor: Masaru Nakamura
  • Patent number: 8576530
    Abstract: The adaptive power management system for aircraft galleys includes one or more programmable circuit breakers for corresponding interchangeable aircraft galley inserts. Current rating settings of the programmable circuit breakers can be changed by direct interrogation by a galley network controller, which can also automatically switch selected circuit breakers to open to shut down the power supply to an entire galley complex or individual galley inserts, as needed, or by a passive signal.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 5, 2013
    Assignee: B/E Intellectual Property
    Inventors: William D. Aronson, Joseph C. Dettmer, Sebastien A. Ramus
  • Patent number: 8564920
    Abstract: A smart breaker includes a current detector configured to detect current flow from a power source to a protected device. A controller has logic and is configured to select a trip value in response to the detected current flow and stored configuration information relating to the protected device. The protected device includes at least one installed component requiring power and the stored configuration information can be at least one of data regarding the number of installed components in the protected device requiring power, the amount of power used by each of the installed components, and the expected power requirements of the installed components.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: October 22, 2013
    Assignee: Adtran, Inc.
    Inventors: Brian Christian Smith, Randall Johnston
  • Patent number: 8526152
    Abstract: Administering offset voltage error in a current sensing circuit including recording by a power supply management module a current sensing voltage for a power supply when no operating load is drawn from the power supply and dynamically calculating by the power supply management module output current of the power supply with an active load in dependence upon the recorded current sensing voltage.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: September 3, 2013
    Assignee: International Business Machines Corporation
    Inventors: Nicholas Celenza, Ismael Orozco Biaggi
  • Patent number: 8520352
    Abstract: The present invention provides a multichannel active sensing and switching device featuring a multiple sensing and switching module configured to respond to operational conditions of different load types and provide load type sensor signals containing information about the operational conditions of the different load types, and also configured to respond to controller signals for controlling the operation of the different load types in two or more different protection configurations; and a controller module configured to respond to the load type sensor signals and provide the controller signals in order to control the operation of the different load types in the two or more different protection configurations. The controller module may be programmable and configured to provide a default circuit breaker configuration and a device specific configuration using active intelligence (AI).
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: August 27, 2013
    Assignee: Xylem IP Holdings LLC
    Inventors: David L. Phillips, Gerard K. Caldwell, William B. McDonough, Martin Ruse, Lester Snedaker, Vijay Mallik
  • Patent number: 8441768
    Abstract: An Intelligent Electronic Device (IED), such as a protective relay, may monitor and/or protect an electrical power system by detecting fault conditions using stimulus inputs from the electrical power system. The IED may operate (take protective actions) when fault conditions are detected. A monitoring device may supervise the IED. The monitoring device may detect power system disturbances independently of the IED, using the same stimulus inputs (or a subset thereof) used by the IED to implement its protection function(s). The monitoring device may supervise the IED using hard-coded supervision, soft-coded supervision, and/or user-configurable supervision. The IED may be prevented from operating outside of an operating window defined by the monitoring device. Components of the monitoring device may be separated and/or isolated from the IED, such that a failure in certain IED components may not cause a simultaneous failure or malfunction of the monitoring device.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: May 14, 2013
    Assignee: Schweitzer Engineering Laboratories Inc
    Inventor: Bogdan Z. Kasztenny