Abstract: A method of determining the reliability of a high-voltage PMOS (HVPMOS) device includes determining a bulk resistance of the HVPMOS device, and evaluating the reliability of the HVPMOS device based on the bulk resistance.
Abstract: To provide a sensor equipped and in-wheel motor incorporated bearing device for a vehicle wheel, which is capable of accurately detecting a rotating condition of a vehicle drive wheel and is effective to accurately control an electric drive motor or an automotive vehicle, the sensor equipped and in-wheel motor incorporated bearing device includes a wheel support bearing assembly for rotatably supporting a hub of the vehicle drive wheel, an electric drive motor providing a rotation device source for the vehicle drive wheel, and a speed reducing mechanism interposed between the electric drive motor and the wheel support bearing assembly. A rotation detecting device is also provided for detecting the rotation of an output shaft of the speed reducing mechanism.
Abstract: An electronic package that has an array of pins may be tested for shorts and continuity in a parallel manner. The array of pins are allocated to four or more groups of pins such that each pin in each group is not adjacent to a pin from its own group of pins. One of the groups of pins is tested for continuity while placing a reference voltage level on all of the pins in the other groups of pins. A separate current source is coupled to each pin and a resultant voltage is measured. A short between one of the pins in the first group and a pin in one of the other groups can be detected when the resultant voltage on one of the pins in the first group is approximately equal to the reference voltage. Group-wise testing is repeated until all groups have been tested.
Abstract: A magnetic sensor device includes a plurality of electrical wires, a magnetic sensor chip, and a magnet. The magnet is formed from a material composition of a polymer and magnetic particles and attached to at least one of the electrical wires.
Abstract: A method for performing power consumption control is provided, where the method is applied to an electronic device. The method includes: sensing a current on a current path between a battery and at least one portion of the electronic device by performing sampling operations to generate a plurality of samples; performing calculation on the samples to monitor the current; and based upon the calculation, when it is detected that the current reaches a predetermined threshold, triggering a post processing operation to be performed within the electronic device. In particular, performing the sampling operations to generate the plurality of samples further includes: utilizing an analog-to-digital converter (ADC) to perform the sampling operations on a voltage difference corresponding to the current to generate the plurality of samples. For example, the voltage difference can be obtained by probing two terminals of a resistor or a Hall component. An associated apparatus is also provided.
Abstract: The invention relates to a shielded double-coil multilayer assembly intended to be used in an inductive detector. This multilayer assembly comprises a plurality of stacked parallel separated layers, namely: a layer (C1) comprising a first shielding element for a first coil, a layer (C2) comprising all or part of a first coil, a layer (C3) comprising all or part of a second coil, a layer (C4) comprising a first shielding element for the second coil.
Abstract: A device for measuring the value of a resistor has a first RC element with a first time constant and a second RC element with a second time constant. The first RC element has a first capacitor and a resistor. The second RC element has a second capacitor and the resistor to be measured. An evaluation circuit charges the first and second capacitors to a first and a second voltage, respectively, and initiates their discharge. The evaluation circuit measures the time that elapses from the start of the discharge to the instant at which the voltages across the capacitors are equal, and determines the value of the resistor from the values. In the event that the first time constant is larger than the second time constant, the first voltage is smaller than the second voltage, and vice versa.
Abstract: A directional capacitive proximity sensor circuit capable of providing directional capacitive proximity sensing includes one or more guard electrodes, a first sensor, and a second sensor. The directional capacitive proximity sensor is installed in a device such that the first sensor is positioned near a first component of the device, and the second sensor is positioned near a second component of the device. The first and second sensors measure a capacitance to detect proximity of a user relative to the respective sensor, wherein the detected proximity is interpreted to determine a direction in which the user proximity is detected relative to the directional capacitive proximity sensor circuit. The guard electrode is provided to mitigate stray capacitance to reduce error in the capacitance measurements obtained by the first and second sensors.
Abstract: A method and to a system can be used for measuring electric voltages in batteries with a number of battery cells. A measuring circuit includes at least one digital analog converter that constitutes, in combination with a number of comparators, an analog digital converter to determine the electric voltages of the battery cells. The comparators compare a reference voltage generated by the digital analog converter with the electric voltage of the battery cells over a number of separate measuring channels to the individual battery cells.
Abstract: An electronic package having multiple pins may be tested in parallel for output short circuit current by simulating a direct short to ground by simultaneously connecting multiple output pins directly to ground in order to active a current limiter associated with each of the output pins. The pins are then connected to a resistive connection to ground via a set of resistors; the direct ground is then removed, such that the current limiter associated with each of the output pins remains activated. A voltage drop across each of the set of resistors is measured simultaneously. An output short circuit current fault is indicated when the voltage drop across any of the resistors exceeds a threshold value corresponding to a maximum output short circuit current value.
Abstract: A circuit for detecting individual positions of a plurality of electrical contactors, including a plurality of modules each including a contactor having k separate contact positions each connected in series to a resistor associated with an integer status value between 1 and k and separate from other status values of a same module, each module being associated with a weighting coefficient and the weighting coefficients following a geometric progression of no less than k+1, the electrical conductance value of each resistor being equal to the status value thereof multiplied by the weighting coefficient of the module thereof.
Abstract: A dual-electrode occupant detection system configured to determine an occupant presence on a seat assembly. The system includes two electrodes that each generates an electric field in response to an applied excitation signal. The two electrode signals arising therefrom can be measured individually and/or combined to detect more reliably an occupant. Such a configuration advantageously avoids the added expense and complication of an electrode arrangement that relies on an underlying shield layer to reduce electrode signal degradation caused by a seat heater element.
August 14, 2012
Date of Patent:
September 8, 2015
Delphi Technologies, Inc.
Kevin D. Kincaid, Duane D. Fortune, Morgan D. Murphy, Robert K. Constable
Abstract: A magnetic sensor device includes a magnet configured to generate a bias magnetic field. A plurality of electrical wires extend through the magnet. A magnetic sensor chip is attached to an end face of a first electrical wire of the plurality of electrical wires.
Abstract: The disclosure relates to a contactless magnetic sensor for measuring the angular or linear movement of a ferromagnetic target. The purpose of the disclosure is to make a position sensor having reduced dimensions and capable of detecting a piece of position information as soon as the sensor is powered without degrading the performance thereof. To this end, the disclosure relates to a mobile sensor that includes at least one permanent magnet, at least one ferromagnetic member at least one magnetically sensitive member, the permanent magnet having an upper surface opposite the ferromagnetic target, wherein the permanent magnet has a substantially cylindrical or parallelepiped shape and includes a cavity, the ferromagnetic member being arranged inside the cavity and the magnetically sensitive member being arranged inside the cavity above the ferromagnetic member and below the upper surface of the magnet.
Abstract: In an embodiment, a chuck to support a solar cell in hot spot testing is provided. This embodiment of the chuck comprises a base portion and a support portion disposed above the base portion. The support portion is configured to support the solar cell above the base portion and to define a cavity between a bottom surface of the solar cell and the base portion that thermally separates a portion of the bottom surface of the solar cell from the base portion.
Abstract: Provided is a touch sensor stable against environmental variation comprising an oscillator which outputs a periodical operation signal, an antenna electrode which has a electrostatic capacitance straining the operation signal to form an output signal, a detection circuit which generate a detection value corresponding to a difference between the output signal and a predetermined reference voltage, a determination means which determines whether a human body is proximate to the antenna electrode, based on the detection value, wherein a frequency of the operation signal is varied so that the detection value gets closer to a predetermined standard value.
Abstract: A photovoltaic power generation system, wherein electrical power generated by multiple photovoltaic power generator units is gathered in a single unit group power collection control section and, in addition, supplied (transferred) to a single power converter corresponding to a single unit group power collection control section. The photovoltaic power generation system comprises generator unit groups formed by arrangement of multiple photovoltaic power generator units and unit group power collection control sections, which are connected with the photovoltaic power generator units through unit cables, and collect and control the electric power generated by the photovoltaic power generator units.
Abstract: A test structure for testing electrical properties of a material comprises a first loop and a second loop, which are connected to form a closed test loop. A signal generator, for generating a test signal, is coupled to the first loop and the second loop. A signal propagation switching logic is coupled to the first loop and to the second loop for alternatingly flipping the test signal between the first and second loops, such that the test signal moves uninterrupted through the closed test loop. A probe logic detects any degradation of the test signal as the test signal travels along the closed test loop.
Abstract: Provided is a magnetic field detection device and a current sensor capable of increasing the degree of freedom in selecting the type of the magnetic field detection element. A magnetic field detection device 1 includes a conductor 3 that generates a magnetic field; a C core 2 provided so as to surround the conductor 3; and a magnetic field detection element 4 that detects a magnetic field. The C core 2 has a gap G1, and the magnetic field detection element 4 is disposed at a position where the magnetic field generated from the conductor 3 can be detected, the position being outside the gap G1. Since the direction of the magnetic flux varies outside of the gap G1 from place to place, the direction of the magnetic flux that passes through the magnetic field detection element 4 can be arbitrarily selected by arbitrarily selecting the installation location of the magnetic field detection element 4. Therefore, the degree of freedom in selecting the type of the magnetic field detection element 4 is increased.
Abstract: Aerosol detection apparatus comprises an aircraft having a dielectric member, such as a window (10), comprised in the body (12) thereof such that a surface of the dielectric member forms part of the exterior surface of the aircraft. Detection means (16), such as a static monitor is located on the inside of the aircraft and arranged to detect an electric field resulting from polarization of the dielectric member. The output of the static monitor, or the rate of change thereof, correlates closely to particle density as the aircraft is flown though an aerosol, such as a volcanic ash cloud. The apparatus is simple and relatively inexpensive, and may comprise any general purpose aircraft. Aerosol particles may be detected and mapped using apparatus of the invention more easily and quickly than by use of devices such as optical spectrometers mounted on dedicated research aircraft, or static monitors mounted on the exterior of an aircraft.
September 19, 2011
Date of Patent:
July 14, 2015
UNIVERSITY OF LEADS, SECRETARY OF STATE FOR BUSINESS, INNOVATION AND SKILLS OF THE UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND, NATURAL ENVIRONMENT RESEARCH COUNCIL
Alan Michael Woolley, Stephen David Mobbs, James Matthew Haywood