With Electrical Component (e.g., Transformer) Patents (Class 374/152)
  • Patent number: 10249918
    Abstract: A battery pack includes a case, a battery device, an intervening member and a temperature detection device. The battery device may be disposed within the case and include a cell holder configured to accommodate a plurality of battery cells. The intervening member may be provided between the cell holder and at least one of the plurality of cell holder. The temperature detection device may be disposed between the intervening member and at least one of the plurality of cell holder, so that the temperature detection device directly contacts at least one of the battery cells for detecting a temperature thereof. At least one of the cell holder and the intervening member may have an elasticity, so that the temperature detection device may be directly pressed against at least one of the battery cells due to an elastic deformation of the least one of the cell holder and the intervening member.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: April 2, 2019
    Inventor: Akira Naito
  • Patent number: 10207241
    Abstract: The current document is directed to an efficient multi-channel chemical reactor having a multichannel core containing a plurality of parallel channels, with conductive walls, having a varying composition along their lengths. The channels are heated by a frequency-addressing different regions within the reactor with an inductive coil, driven by an agile frequency or spread spectrum emission controller.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 19, 2019
    Assignee: KONTAK LLC
    Inventor: David O'Connor
  • Patent number: 10060800
    Abstract: An excitation signal generation unit generates excitation signals of frequency channels with mutually different frequency bands and transmits the excitation signals via an antenna. Reception signals of the frequency channels received by the antenna are inputted to a reception strength detection unit. The reception strength detection unit detects a resonance reverberation signal from the reception signals and detects the signal strength of the resonance reverberation signal. An excitation control unit controls the excitation signal generation unit to adjust the signal strength of the excitation signal such that the signal strength of the resonance reverberation signal reaches or falls below a level adjustment threshold.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: August 28, 2018
    Inventor: Shigeo Ito
  • Patent number: 9977085
    Abstract: A method and system of determining an electro-mechanical fault condition in a synchronous machine having a stator, a rotor, and exciter. The method includes: a) obtaining an exciter current signal which is a measurement of an exciter current through stationary windings of the exciter, b) transforming the exciter current signal to obtain an exciter current frequency spectrum, and c) determining whether an electro-mechanical fault condition is present, and a type of the electro-mechanical fault condition, based on harmonic content related to the frequency of the stator, of the exciter current frequency spectrum.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 22, 2018
    Assignee: ABB Schweiz AG
    Inventors: Pedro Rodriguez, Subrat Sahoo, Cajetan Pinto
  • Patent number: 9823137
    Abstract: A thermal protection system (TPS) test plug has optical fibers with FBGs embedded in the optical fiber arranged in a helix, an axial fiber, and a combination of the two. Optionally, one of the optical fibers is a sapphire FBG for measurement of the highest temperatures in the TPS plug. The test plug may include an ablating surface and a non-ablating surface, with an engagement surface with threads formed, the threads having a groove for placement of the optical fiber. The test plug may also include an optical connector positioned at the non-ablating surface for protection of the optical fiber during insertion and removal.
    Type: Grant
    Filed: November 30, 2013
    Date of Patent: November 21, 2017
    Assignee: Intelligent Fiber Optic Systems, Inc.
    Inventors: Richard James Black, Joannes M. Costa, Behzad Moslehi, Livia Zarnescu
  • Patent number: 9816871
    Abstract: Some embodiments include apparatuses and methods having a node to receive ground potential, a first diode including an anode coupled to the node, a second diode including an anode coupled to the node, a first circuit to apply a voltage to a cathode of each of the first and second diodes to cause the first and second diodes to be in a forward-bias condition, and a second circuit to generate a signal having a duty cycle based on a first voltage across the first diode and a second voltage across the second diode. At least one of such the embodiments includes a temperature calculator to calculate a value of temperature based at least in part on the duty cycle of the signal.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: November 14, 2017
    Assignee: Intel IP Corporation
    Inventor: Matthias Eberlein
  • Patent number: 9614197
    Abstract: An onboard battery includes an accommodation case that has a hollow cross section formed with multiple cavities 9a, and at least one battery module that has at least one battery cell and is accommodated in the accommodation case. At least one disposition depression that communicates with one of the multiple cavities and is opened upward is formed in a portion positioned below the at least one battery module in the accommodation case, and at least one heater that heats the at least one battery cell is disposed in the at least one disposition depression so as not to be in contact with the at least one battery cell.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: April 4, 2017
    Inventors: Yutaka Yokoyama, Isao Nakagawa, Toshiyuki Hara
  • Patent number: 9541458
    Abstract: A method for determining a temperature at a predetermined location in a winding of subconductors of an electric machine is provided where each subconductor is encased in electric subconductor insulation. The method includes predetermining the location between one of the subconductors and the associated subconductor insulation; arranging, in said winding, an optical fiber with a sensor material piece that is fixed to the predetermined location, the optical properties of said sensor material piece being temperature-dependent and uninfluenced by stretching; exposing the sensor material piece to light via the optical fiber such that, following an interaction with the sensor material piece, light is emitted from said sensor material piece; measuring the spectrum of the light; and using this spectrum to determine the temperature at the predetermined location.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 10, 2017
    Inventors: Haiko Adolf, Marcus Banda, Norbert Keyssner, Roland Röding, Lothar Trefflich
  • Patent number: 9488698
    Abstract: A system for detecting faults in a rectifier includes an AC current generator and a rectifier. A controller is configured to determine an AC input current supplied to rectifier, generate a simulated rectified DC input current based upon the AC input current, and determine a DC output current from the rectifier. The controller is further configured to compare the simulated rectified DC input current to the DC output current and generate an alert command if a difference between the simulated rectified DC input current and the DC output current exceeds a predetermined difference threshold.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: November 8, 2016
    Assignee: Caterpillar Global Mining Equipment LLC
    Inventor: Saeid Mirzaei
  • Patent number: 9335365
    Abstract: A method comprises providing first and second semiconductor devices. Each device comprises a transistor having a split gate electrode including first and second gate portions. Each device has a respective ratio between an area of its first gate portion and a sum of areas of its first and second gate portions. For each device, a stress voltage is applied to the first gate portion, but not to the second gate portion. For each device, the first and second gate portions are biased with a common voltage, and data are collected indicating a respective degradation for each device due to the stress voltage. The degradation has a component due to time dependent dielectric breakdown (TDDB) and a component due to bias temperature instability. From the collected data extrapolation determines the degradation component due to TDDB.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 10, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yen-Chieh Huang, Ching-Huang Wang, Tsung-Yi Yu
  • Patent number: 9212957
    Abstract: In an electrical machinery and apparatus, a storage space is formed along an extension direction of a strand, and a temperature sensor is installed in the storage space of the strand, so that temperature of the strand can be immediately measured, and no pressure is applied to the temperature sensor in the process of forming a ground wall insulation thereby the temperature of the strand can be accurately measured.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: December 15, 2015
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Kazuhiko Takahashi, Kengo Iwashige, Kenichi Hattori, Yukihiro Yamamoto, Yasunori Satake, Takayasu Tanaka, Toru Muto, Seiichi Sawada, Yasuaki Kageyama
  • Patent number: 9178196
    Abstract: A battery assembly having a plurality of battery modules capable of powering a traction motor of a vehicle. First and second end frames are provided on the battery modules. A plurality of battery cells is disposed between the first and second end frames. The first end frame of one of the battery modules has a first pocket. The second end frame of an adjacent battery module has a second pocket. The first and second pockets are aligned when the battery assembly is assembled to define a receptacle. A thermistor is disposed in the receptacle. The thermistor extends through the first pocket of the first end frame and at least partially into the second pocket of the second end frame.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: November 3, 2015
    Inventors: Giriraj Srinivasan, Patrick Daniel Maguire, Kanchana Pentapati
  • Patent number: 9116055
    Abstract: A combustion turbine flashback sensing system with a sensor cable that includes an optical fiber having at least one and preferably multiple fiber Bragg grating (FBG) temperature sensors along the fiber. The sensor cable is oriented in a combustor turbine upstream a combustion zone, so that it is capable of sensing temperature at multiple sensing points within the combustor. A protective conduit having a first thermal conductivity circumscribes the optical fiber. A sensor shield is oriented in circumferential proximity to the FBG temperature sensor. It is preferable that each such sensor has an associated sensor shield. The sensor shield has a thermal conductivity greater than the conduit thermal conductivity. The sensor shield facilitates FBG sensor rapid thermal response, with sufficient thermal and mechanical shielding to isolate the sensor from harsh operating conditions within the combustor, while the less thermally conductive conduit provides greater isolation protection for the cable structure.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 25, 2015
    Assignee: Siemens Energy, Inc
    Inventor: Robert T. Johnston
  • Patent number: 9118132
    Abstract: A vacuum compatible high-density electrical interconnect system for use in a vacuum environment is disclosed. In one embodiment, the vacuum compatible high-density electrical interconnect system includes a vacuum compatible base plate, a vacuum compatible printed wiring board (PWB) disposed on the vacuum compatible base plate and a vacuum compatible interposer module disposed in the vacuum compatible base plate. Further, the vacuum compatible PWB includes a plurality of components on a front side of the vacuum compatible PWB and a plurality of associated pads on a back side of the vacuum compatible PWB. In one exemplary embodiment, the vacuum compatible interposer module is disposed in the vacuum compatible base plate such that it operatively connects to the plurality of associated pads on the back side of the vacuum compatible PWB and further operatively connects to a plurality of pads of an external device that is disposed outside the vacuum environment.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 25, 2015
    Assignee: BAE Systems Information and Electronic Systems Integration
    Inventors: Gerard A. Esposito, Dennis P. Bowler
  • Patent number: 9083260
    Abstract: A method of controlling a switching frequency of an inverter, the method comprising the steps of: measuring a signal indicative of a temperature variable at a first switching frequency to determine a measured temperature variable; comparing the measured temperature variable to a first threshold; determining if the measured temperature variable is above the first threshold; if the measured temperature variable is not above the first threshold, calculating the temperature variable at a second switching frequency; if the temperature variable calculated at the second switching frequency is less than the first threshold, setting the switching frequency of the inverter to the second switching frequency.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: July 14, 2015
    Inventor: Gareth Christopher James
  • Patent number: 9046423
    Abstract: In accordance with the present invention, there is provided a hybrid mechanical and electrical transformer temperature monitor. The mechanical sensing mechanism drives mechanical switches, a local display and a sensing input to the electrical side of the monitor. The electrical portion of the temperature monitor has the ability to calculate winding temperature (with an additional current sensor), data log, actuate electrical switches and has a local display for winding temperature.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: June 2, 2015
    Assignee: Qualitrol Company, LLC
    Inventor: John Rolland Piper
  • Publication number: 20150145467
    Abstract: A rechargeable battery temperature detection method adapted to an electronic system includes detecting a status of a processor of the electronic system when an external power is input to a power conversion module of the electronic system; determining whether a thermistor of the electronic system is conducted to a fuel gauge or a charge control circuit according to the state of the processor such that the fuel gauge or the charge control circuit determine a temperature sensing result via the thermistor. The thermistor is disposed adjacent to a rechargeable battery and has a resistance which varies with a temperature of the rechargeable battery. The temperature sensing result is related to the resistance.
    Type: Application
    Filed: April 2, 2014
    Publication date: May 28, 2015
    Applicant: Wistron Corporation
    Inventors: Yu-Tzu Zhu, Ping-I Chen
  • Publication number: 20150139275
    Abstract: The present invention relates to a main circuit part of a vacuum circuit breaker, and more particularly, to a main circuit part of a vacuum circuit breaker with a temperature sensor. The main circuit part of a vacuum circuit breaker with a self-powered temperature sensor assembly includes: a self-powered temperature sensor module; and a support bracket enclosing and supporting the self-powered temperature sensor module.
    Type: Application
    Filed: August 19, 2014
    Publication date: May 21, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Woo Jin PARK, Min Kyu SEO
  • Publication number: 20150117492
    Abstract: A temperature detecting apparatus includes a temperature detecting circuit configured to output a first pulse signal according to a temperature detected by a temperature sensor, and an insulating transformer configured to transmit the first pulse signal to an integrated circuit which is operated by an operation voltage different from that of the temperature detecting circuit. The insulating transformer is installed between the temperature detecting circuit and the integrated circuit. The temperature detecting circuit and the insulating transformer are mounted on a common substrate.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Inventors: Hirotaka Takihara, Shintaro Takahashi
  • Publication number: 20150110155
    Abstract: An example electric vehicle battery thermocouple includes a temperature sense lead of a first material, and an electric vehicle battery component of a second material different than the first material.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 23, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Thomas Joseph Turgeon, Masahiro Kimoto
  • Publication number: 20150098488
    Abstract: Systems and methods for monitoring temperature distribution in downhole equipment using magnetostrictive probes. In one embodiment, an ESP motor has a stator with a rotor and shaft rotatably positioned within the stator. Magnetostrictive sensors are positioned within the motor. Each magnetostrictive sensor has a transducer, a probe, and electronic circuitry coupled to the transducer. The circuitry generates an initial electrical signal that is conveyed to the transducer. The signal passes through one or more coils in the transducer, generating magnetic fields that induce an acoustic signal in the probe. The acoustic signal propagates through the probe and waves are reflected from reflection points in the probe.
    Type: Application
    Filed: May 1, 2014
    Publication date: April 9, 2015
    Applicant: Baker Hughes Incorporated
    Inventors: Ke Wang, Zhiyue Xu
  • Publication number: 20150092817
    Abstract: A transducer for noninvasively determining an internal temperature of a location of interest in a body of a subject may be configured to receive native temperature signals originating from the location of interest without substantially receiving interfering signals. Such a transducer may include one or more shielding features for preventing interference. In addition, such a transducer may include a dielectric cavity configured or positioned to increase the native temperature signals sensed, or received, by the antenna. A transducer may be configured to multiplex signals that are indicative of a temperature of a location of interest within the body of a subject and reference temperature signals. Such a transducer may include a connector that facilitates the communication of a multiplexed signal, such as a connector for a coaxial cable. The connector of a transducer may be configured to swivel relative to an end of a cable that has been coupled thereto. Systems including such a transducer are also disclosed.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Inventors: Robert C. Allison, Leroy D. Geist
  • Publication number: 20150078418
    Abstract: A thermistor module disposed in an insertion hole formed in a mold material that covers a stator coil of a rotary electric machine, and configured to measure a temperature of the stator coil includes: a heat collection member that faces an inner peripheral surface of the insertion hole in a state where the thermistor module is disposed in the insertion hole.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 19, 2015
    Inventors: Shinjiro Suzuki, Taketo Takeuchi
  • Publication number: 20150070488
    Abstract: An image capture device includes an image sensor. The image sensor includes a temperature sensor for measuring temperature measurements of the image sensor. A timing generator is coupled to the image sensor for applying an electronic shutter pulse to the image sensor to drain away all charge in photodiodes of the image sensing region prior to image capture. A reading component is coupled to the temperature sensor for reading the temperature measurements from the temperature sensor. The image capture device is configured to prevent erroneous temperature readings by the reading component resulting from substrate punch-through from the application of the electronic shutter pulse.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Inventors: Shen Wang, Gregory Oscar Moberg
  • Publication number: 20150063417
    Abstract: A temperature sensing circuit for an insulated gate bipolar transistor (IGBT) module, which enables a temperature of the IGBT module to be sensed by a pulse width modulation (PWM) method, using a photo coupler, etc., is provided. In the temperature sensing circuit for the IGBT module, a voltage value between both terminals of a diode is measured, the measured voltage value is converted into a digital signal, using a pulse width modulation (PWM) technique, and the converted digital signal is easily transmitted to a controller such as a microcomputer (MICOM), using a photo coupler for electrical insulation, so that it is possible to analyze the duty of the digital signal, thereby sensing an accurate temperature.
    Type: Application
    Filed: December 16, 2013
    Publication date: March 5, 2015
    Inventors: Jee Hye Jeong, Ki Jong Lee, Kang Ho Jeong
  • Publication number: 20150055680
    Abstract: Methods and apparatus to determine home appliance cabinet temperatures using light emitting diodes (LEDs) are disclosed. An example home appliance includes a cabinet, a lighting system disposed in the cabinet having one or more LEDs to provide lighting in the interior of the cabinet, and a circuit electrically coupled to the lighting system and programmed to determine a temperature inside the cabinet based on a characteristic of the one or more LEDs of the lighting system.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: Whirlpool Corporation
  • Patent number: 8961004
    Abstract: Methods and systems to determine an internal temperature of a rechargeable lithium-ion cell based on a phase shift of the cell. Internal cell temperature may be determined with respect to an internal anode temperature and/or an internal cathode temperature. Internal anode temperature may be determined based on a phase shift of a frequency within a range of approximately 40 Hertz (Hz) to 500 Hz. Internal cathode temperature may be determined based on a phase shift of a frequency of up to approximately 30 Hz. A temperature sensor as disclosed herein may be powered by a monitored cell with relatively little impact on cell charge, may be electrically coupled to cell but housed physically separate from the cell, and/or may monitor multiple cells in a multiplex fashion. A rate of change in phase shift may be used to initiate pre-emptive action, without determining corresponding temperatures.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: February 24, 2015
    Assignee: The Johns Hopkins University
    Inventors: Rengaswamy Srinivasan, Michael H. Butler, Bliss G. Carkhuff, Terry E. Phillips, Jeremy D. Walker, Oscar M. Uy, Andrew C. Baisden
  • Publication number: 20150049787
    Abstract: Methods and devices for mounting a sensor are presented herein. A temperature sensor assembly for a capacitor bank is disclosed that includes two opposing substrates, and a plurality of contact temperature sensors attached to each substrate. Each temperature sensor is configured to directly contact a surface of one of the capacitor cans in the capacitor bank and therefrom generate a signal indicative of the temperature of the capacitor can. A biasing member attaches the two substrates together. The biasing member is configured to selectively contract, such that the width of the sensor assembly is less than the gap distance between adjacent sets of tandem capacitor cans and the sensor assembly can insert between the sets of capacitor cans, and expand, such that the width of the sensor assembly is greater than the gap distance and the sensor assembly is tensioned against and thereby secured between the sets of capacitor cans.
    Type: Application
    Filed: April 21, 2014
    Publication date: February 19, 2015
    Inventors: Jeffrey J. Farago, Marcelo A. Perez, Stewart John Harding
  • Publication number: 20150036719
    Abstract: A method of manufacturing a thermometer probe includes: obtaining a hollow housing having an open end and a curved inner surface; obtaining a flexible detecting component having an adhesive layer; obtaining an insertion component; detachably attaching the flexible detecting component to the insertion component; inserting the insertion component, having the flexible detecting component attached thereto, through the open end of the hollow housing and into the hollow housing such that the adhesive layer is disposed between the insertion component and the inner surface; and adhering, via the adhesive layer, the flexible detecting component to the curved inner surface.
    Type: Application
    Filed: May 7, 2014
    Publication date: February 5, 2015
    Inventor: Sreenivasan K Koduri
  • Publication number: 20150030898
    Abstract: A method and a device for identifying an increase in temperature in a plurality of electrochemical storage cells. An electrical characteristic value of a series connection of PTC elements that are thermally coupled in each case to a storage cell is determined and an increase in temperature of a plurality of electrical storage cells is identified if a value that is obtained as a result of evaluating the electrical characteristic value achieves a predefined threshold value.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventors: Stefan Butzmann, Jens Boehme
  • Publication number: 20150010040
    Abstract: A wireless thermometer is provided, which measures a deep temperature with high accuracy and has an improved communication distance. A wireless thermometer includes a flat film-like substrate. A quartz crystal vibrator and an antenna are disposed on a principal surface of the substrate. A quartz crystal vibrator and an antenna are disposed on the other principal surface of the substrate. A winding conductor of the antenna is substantially symmetrical with a winding conductor of the antenna with respect to the substrate. A lead conductor of the antenna is connected to the winding conductor at one end and is connected to the quartz crystal vibrator at the other end. A central portion of the lead conductor is bent. By folding the central portion, the quartz crystal vibrator can be positioned opposite the quartz crystal vibrator with a heat insulator interposed there between.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Inventors: Yoshihiro Ito, Yuri Hoshino
  • Publication number: 20150010039
    Abstract: The invention relates to a method for measuring the temperature of at least one electronic component (2) using a sensor (4) that supplies a temperature-dependent voltage. The method comprises the following steps in which: a signal representative of the voltage delivered by the sensor (4) is made to pass through an isolated differential amplifier (13), and the signal output from said isolated differential amplifier (13) is used to determine the temperature measured by the sensor (4).
    Type: Application
    Filed: December 11, 2012
    Publication date: January 8, 2015
    Inventors: Larbi Bendani, Mimoun Askeur
  • Publication number: 20150001965
    Abstract: A method for determining the temperature of an electronic component in an electronic device comprises supplying a current to the electronic component via a power converter device, measuring an input current supplied to the power converter device, determining a power dissipation of the electronic component based on the measured input current, a value for an efficiency of the power converter device and an output voltage of the power converter device, and determining the temperature of the electronic component based on the determined power dissipation and a thermal resistance value for the electronic component.
    Type: Application
    Filed: November 21, 2013
    Publication date: January 1, 2015
    Applicant: Dialog Semiconductor GmbH
    Inventors: Alessandro Angeli, Michele DeFazio, Stefano Scaldaferri, Christian Wolf
  • Publication number: 20140376592
    Abstract: The invention relates to a device for representing and displaying the coil temperature of an electrical power transformer and to an electrical circuit suitable therefor. The invention is based on the general concept of using the CT-signal current not only for supplying the heating resistor of a sensor, for example, but also for decoupling energy from the CT-signal current by transformation via an electronic circuit according to the invention in order to supply energy to the connected measurement devices, so that a separate energy source can thus be ultimately omitted.
    Type: Application
    Filed: May 25, 2012
    Publication date: December 25, 2014
    Inventors: Sebastian Hollunder, Martin Kubiczek
  • Publication number: 20140362889
    Abstract: A method and apparatus for determining a control temperature to control a function of an electronic device by using an atmospheric temperature when controlling a temperature of the electronic device, and for controlling the function of the electronic device according to a control step of the determined control temperature are provided. A method of operating an electronic device includes measuring an atmospheric temperature, determining at least one control temperature corresponding to the measured atmospheric temperature, measuring an internal temperature of the electronic device, and controlling a function in accordance with the measured internal temperature of the electronic device and the determined at least one control temperature.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 11, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki-Youn JANG, Min-Su KIM, Kun-Tak KIM, Chi-Hyun CHO
  • Patent number: 8905634
    Abstract: A temperature detection apparatus includes a transformer, a thermostat attached directly to an electrically conductive site of the heating element and has contacts that become short-circuited or come into an open-circuit condition depending on whether or not the temperature of the heating element is equal to or higher than a predetermined value, the contacts being connected to a secondary coil in the transformer, a DC voltage source and a transistor configured to supply required AC power to a primary coil in the transformer, a current detection resistor configured to detect a current flowing through the primary coil in the transformer, and a comparison circuit detecting a voltage generated across the current detection resistor when a current flows through the current detection resistor, the comparison circuit outputting an alarm signal when the current flowing through the primary coil in the transformer exceeds a preset threshold current.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 9, 2014
    Assignee: Netcomsec Co. Ltd
    Inventors: Yukihira Nakazato, Junichi Matsuoka
  • Publication number: 20140354185
    Abstract: There are provided a display device which can accurately estimate an ambient temperature around the display device, a computer program, a recording medium, and a method for estimating an ambient temperature. A panel temperature sensor and a switch board temperature sensor are disposed in different positions of a display device. A control unit specifies correlation information indicating the correlation between a first temperature difference between a temperature detected by the panel temperature sensor and an ambient temperature and a second temperature difference between a temperature detected by the switch board temperature sensor and the ambient temperature. The control unit estimates the ambient temperature on the basis of the specified correlation information and the temperatures and detected by the panel temperature sensor and the switch board temperature sensor.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 4, 2014
    Applicant: EIZO Corporation
    Inventor: Yuya Yoshida
  • Publication number: 20140355649
    Abstract: There is provided a portable electronic device with one or more integrated temperature sensors (12) for measuring an ambient temperature, a compensator (25,26) for reducing the difference between a sensor output (Ts) and the ambient temperature (Ta) with the compensator (25,26) switching depending on environmental and/or handling conditions between a plurality of compensation modes selected dependent on measurements of one or more other integrated and/or external sensors.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Inventors: Dominik Niederberger, Andrea Sacchetti, Dominic Boni
  • Publication number: 20140334107
    Abstract: A portable electronic device including a temperature sensor embedded in a die is provided. To process temperature measurements the portable electronic device includes a processor circuit coupled to the temperature sensor, the processor circuit configured to read a measurement from the temperature sensor when an integrated circuit in the die is inactive. Furthermore, a memory circuit coupled to the processor circuit and the temperature sensor stores a temperature gradient provided by the temperature sensor. A Printed Circuit Board for use in a portable electronic device as above is also provided. A method for performing thermal control in a portable electronic device as above is also provided.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 13, 2014
    Applicant: Apple Inc.
    Inventors: Amaury J. HERESZTYN, Ihtesham H. CHOWDHURY, Keith COX
  • Patent number: 8864373
    Abstract: A battery temperature monitoring circuit, which has a cold comparator and a hot comparator, achieves high accuracy in a small cell size by utilizing a cold current optimized for the cold comparator and a cold reference voltage, and a hot current optimized for the hot comparator and a hot reference voltage, along with switching circuitry that provides the cold current to the cold comparator as the battery temperature approaches the cold trip temperature, and the hot current to the hot comparator as the battery temperature approaches the hot trip temperature.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: October 21, 2014
    Assignee: National Semiconductor Corporation
    Inventors: Luan Minh Vu, Thomas Y. Tse, Tuong Hoang
  • Patent number: 8845188
    Abstract: In a method for determining a state of an apparatus, detected temperatures are received from a plurality of sensors and are compared to at least one preset condition. The state of the apparatus is determined based upon the comparison.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 30, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cullen E. Bash, Ratnesh Sharma
  • Patent number: 8845189
    Abstract: An integrated circuit includes a device identification circuit and a temperature sensor diode connected in parallel from a common node. The device identification circuit includes a resistor connected to a diode-connected transistor. The device identification circuit and the temperature sensor diode are adapted to not be simultaneously operating in an ON state. A first voltage is applied to the common node to place the device identification circuit in an ON state and place the temperature sensor diode in an OFF state to identify the integrated circuit. A second voltage is applied to the common node to place the device identification circuit in an OFF state and place the temperature sensor diode in an ON state to determine a temperature of the integrated circuit.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 30, 2014
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Shen Wang, Edward T. Nelson
  • Publication number: 20140269829
    Abstract: A process sensor assembly comprises a hollow protective housing, a temperature sensor, a process transmitter, and a transient protector. The temperature sensor includes a probe extending out of the hollow protective housing to a sensing location, and a top plate movably secured to the hollow protective housing so as to allow travel within the hollow protective housing with vibrations of the probe. The process transmitter is configured to process and transmit sensor signals from the temperature sensor, and is retained on the top plate to move with the temperature sensor within the hollow protective housing. The transient protector is configured to condition power for to the process transmitter, and is anchored to the process transmitter so as to move with the process transmitter within the hollow protective housing.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Rosemount Inc.
    Inventors: Andrew James Bronczyk, Aaron Andrew Perrault, Frank L. Green
  • Publication number: 20140269830
    Abstract: Systems and methods related to the determination of one or more mechanical characteristics of a structural element are generally described. In some embodiments, a mechanical characteristic (e.g., a crack, a deformation, an inclusion, etc.) can be determined based at least in part upon the determination of a temperature generated, for example, by passing a current through a network of structures within the structural element. For example, in some embodiments, the structural element can comprise a network of electrically conductive nanostructures and, in some cases, a primary structural material that is not substantially electrically conductive. An electrical current can be passed through the network of electrically conductive nanostructures (e.g., by passing current through an electrical circuit comprising the network of electrically conductive nanostructures). This may result in resistive heating (also known as Joule-effect heating) of the nanostructure network.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 18, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Brian L. Wardle, Roberto Guzman de Villoria, Antonio Miravete
  • Patent number: 8801279
    Abstract: A semiconductor device, memory device, system, and method of using a stacked structure for stably transmitting signals among a plurality of semiconductor layers is disclosed. The device includes at least a first semiconductor chip including a first temperature sensor circuit configured to output first temperature information related to the first semiconductor chip, and at least one through substrate via.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-sik Kim, Dong-hyuk Lee, Ho-cheol Lee, Jang-woo Ryu
  • Publication number: 20140219314
    Abstract: The present invention pertains to a non-contact temperature monitoring device, wherein: temperature data and image data are simultaneously outputted to a monitoring unit by simultaneously photographing a temperature detection target and detecting the temperature of the temperature detection target in a non-contact manner, in which the temperature state of the temperature detection target and on-site conditions can be monitored in real time; the state of the temperature detection target is photographed using an image capturing unit only when the temperature state of the temperature detection target is abnormal, thereby simplifying an operation in a normal state and more accurately detecting on-site conditions using image information in emergency situations. Accordingly, quicker and more accurate responses are possible, thereby preventing fire accidents in industrial settings.
    Type: Application
    Filed: September 7, 2012
    Publication date: August 7, 2014
    Inventor: Deog Bong Ryou
  • Publication number: 20140217896
    Abstract: A control system is disclosed for determining an actual temperature of a light emitting diode. The control system uses conductor that supply power to the light emitting diode to supply a pulse to the light emitting diode. The pulse is determined along with a reaction caused by the pulse and the information gained is used in determination of the light emitting diode die temperature which can then be used in controlling current to the light emitting diode to control the temperature of the light emitting diode.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 7, 2014
    Inventors: Anthony W. Catalano, Daniel Harrison
  • Patent number: 8794827
    Abstract: Flexible circuits 2, 3 are formed on a flexible insulating sheet 1. A thermal sensor 4 is connected between the circuits 2, 3. The thermal sensor 4 and connecting parts 5 are integrally covered with an elastic insulating resin 6. While the insulating sheet 1 is bent together with the insulating resin 6, the thermal sensor 4 is pushed onto an object to be sensed 8 via the insulating sheet 1. A plurality of thermal sensors 4 are connected in series in a longitudinal direction of the insulating sheet 1. The insulating resin 6 covers the thermal sensors 4 and the connecting parts 5.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 5, 2014
    Assignee: Yazaki Corporation
    Inventors: Satoshi Ishikawa, Susumu Yamamoto
  • Publication number: 20140212289
    Abstract: The invention regards a method for estimating the temperature of a semiconductor chip accommodated in a power semiconductor device in operation, such as an IGBT power module, the method comprising the steps of; while the power semiconductor device is in operation determining a voltage drop over the power semiconductor device for a value of applied load current and; estimating the temperature of the semiconductor chip by evaluating the relationship between the determined voltage drop and the value of applied load current on the basis of a semiconductor chip temperature model. The invention also regards the corresponding apparatus for estimating the temperature of a semiconductor chip, as well as a wind turbine comprising such an apparatus.
    Type: Application
    Filed: August 13, 2012
    Publication date: July 31, 2014
    Applicant: kk-electronic A/S
    Inventors: Paul Bach Thogersen, Bjørn Rannestad
  • Publication number: 20140204973
    Abstract: A temperature measuring system of an electric motor, including an electroconductive holding member holding a coil end of an end of a stator coil comprised of a winding wire wound around a stator core, a resistance measuring part measuring a resistance of the holding member, and a temperature calculating part calculating a temperature of the winding wire based on a resistance value measured by the resistance measuring part.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Inventors: Shinichi Kinoshita, Yamato Mishima