Abstract: An electric circuit for driving a current through a load resistance in a first state and isolating the load resistance in a second state includes: a first switch configured to connect a first terminal of the load resistance and a first port of the electric circuit, the first switch having a first electric potential; a second switch configured to connect a second terminal of the load resistance and a second port of the electric circuit, the second switch having a second electric potential, different from the first electric potential; and at least one auxiliary resistance included within a bypass line configured to bypass the load resistance and the second switch. The first switch is configured to switch a current flowing through the first switch, and the second switch is configured to switch a current flowing through the second switch.

Abstract: The insulation deterioration monitoring apparatus comprises a computer on which software is installed. The software causes the computer to execute at least first to fourth processes. In the first process, during stopping of at least one inverter unit, the computer selects one inverter unit out of the stopped inverter units and causes the inverter corresponding to the selected inverter unit to generate a direct current voltage. In the second process, the computer measures the current value of the ground current while the corresponding motor driving inverter generates the direct current voltage. In the third process, the computer records the measured current value of the ground current for each inverter unit in association with the selected inverter unit. Then, in the fourth process, based on the measured current value of the ground current recorded for each inverter unit, the computer analyzes the tendency of insulation deterioration of each inverter unit.

Abstract: A signal detecting circuit of a micro switch includes a first terminal, a second terminal, a third terminal and a micro controller. The first terminal has two ends that are respectively connected to a normally closed terminal of the micro switch and a resistor. The second terminal has two ends that are respectively connected to a normally opened terminal of the micro switch and a ground. The third terminal is connected to a common terminal of the micro switch. The micro controller has two ends that are respectively connected to the first terminal and the third terminal. When an elastic plate of the micro switch is pressed down, the common terminal is connected to the normally opened terminal. When the elastic plate of the micro switch is released, the common terminal is connected to the normally closed terminal.

Abstract: A system having a control unit, which has a housing in which at least one processing unit of the control unit is situated. The system further includes an electrical ground connection situated outside the housing; a first ground line by which the control unit and the ground connection are electrically connected; a second ground line by which the control unit and the ground connection are electrically connected; and a sensor device, which is developed to monitor an electrical first ground current flowing through the first ground line and an electrical second ground current flowing through the second ground line. The sensor device has an XMR sensor for monitoring the first and the second ground current.

Abstract: A vacuum pump includes a control unit that monitors and controls a motor and a magnetic bearing, each being stored in a pump body. A temperature-adjustment function unit measures a temperature of the pump body by at least one temperature sensor disposed in the pump body and controls at least one heater or solenoid controlled valve based on the temperature. The temperature-adjustment function unit includes a first terminal capable of connecting or disconnecting the temperature sensor and a second terminal capable of connecting or disconnecting one of the heater and the solenoid controlled valve. A self-diagnosis unit capable of conducting a self-diagnosis of whether an input signal to the first terminal has been normally inputted or whether the signal has been normally outputted from the second terminal.

Abstract: A device for verifying wiring connections during the assembly of a wire harness. The wire harness comprises a connector having an array of terminals and a plurality wires connected to individual ones of the terminals. The device comprises a transmitter for applying different signals to different terminals for emitting a corresponding electromagnetic signal from a wire connected to that terminal. Each electromagnetic signal has an associated identifying characteristic. A detector is used to receive the electromagnetic signals emitted from the wires connected to terminals, and a processor generates an output which is used to identify the received electromagnetic signals based on their detected identifying characteristics. A method of assembling a wire harness using the device is also disclosed.

Abstract: The present disclosure provides techniques for predicting failure of power switches and taking action based on the predictions. In an example, a method can include controlling the at least two parallel-connected power switches via a first driver and a second driver, the first a second driver responsive to a single command signal, measuring a failure characteristic of a first power switch, and disabling a first driver of the first power switch when the first failure characteristic exceeds a failure precursor threshold.

Abstract: A method and a system for fault verification of an electronic device are provided. The electronic device includes a device to-be-verified. The method includes the following. A first power-supply voltage is applied to the electronic device until the device to-be-verified satisfies a material-failure condition. A second power-supply voltage is applied to the electronic device to determine whether the electronic device has safety risk. The first power-supply voltage is higher than the second power-supply voltage, and the safety risk is caused by material failure in the device to-be-verified. The method and the system for fault verification of an electronic device can verify safety risk caused by material failure in internal components of the electronic device.

Abstract: A test carrier carried in a state of accommodating a device under test (DUT) includes: a carrier body that holds the DUT; and a lid member that covers the DUT and is attached to the carrier body. The carrier body has contactors provided to correspond to terminals of the DUT, external terminals electrically connected to the contactors, and a first through-hole for positioning that is provided to face the DUT. The first through-hole penetrates the carrier body so that a part of the DUT is seen from an outside through the first through-hole.

Abstract: A terminal supporting leakage detection and a detection method for performing leakage detection for the terminal is provided, the terminal may include: a first conductive unit, a second conductive unit, a first access end, and a second access end, wherein the first access end is configured to be connected to a ground line of a main board of the terminal through the first conductive unit and used to access a ground line of an external leakage detection apparatus, and the second access end is configured to be connected inside the terminal to a metal portion of a outer casing of the terminal through the second conductive unit and used to access a leakage test line of the leakage detection apparatus.

Abstract: Circuit test devices and methods are provided. The method includes measuring a voltage between first and second conductor points (CPs) of a circuit under test (CUT), and determining if the measured voltage is less than a low voltage threshold value (LVTV) indicative of electrical continuity (EC) between the first and second CPs. In response to determining that the measured voltage is less than the LVTV, the method includes: transmitting a test signal (TS) to the first or second CP, and determining if the test signal is received after being transmitted. In response to determining that the TS is received, a presence of EC between the first and second conductor points is reported, and in response to determining that the TS is not received, absence of EC between the first and second CPs, or a lack of electrical contact between the VMC and the first and/or second CP(s), is reported.

Abstract: A packaged current sensor integrated circuit includes a primary conductor having an input portion and an output portion configured to carry a current to be measured by a magnetic sensing element supported by a semiconductor die adjacent to the primary conductor. Each of the input portion and output portion of the primary conductor is exposed from orthogonal sides of the package body. A fault signal may be provided to indicate an overcurrent condition in the integrated current sensor package. The primary current path may be made of a thick lead frame material to reduce the primary current path resistance.

Abstract: A pair of bias magnets applies a bias magnetic field to the magneto-resistive effect element, the bias magnetic field having a component in a direction such that the component cancels the external magnetic field that is applied to the magneto-resistive effect element and a component that is perpendicular to the external magnetic field. The bias magnet has an elongate cross section in a plane that is parallel both to the external magnetic field and to the bias magnetic field. In a projection plane that is parallel to the cross section and onto which the bias magnets and the magneto-resistive effect element are projected, the bias magnet includes an element facing side that is opposite to the magneto-resistive effect element and that extends in a longitudinal direction. The bias magnet is magnetized in a direction that is perpendicular to the longitudinal direction. The element facing side is longer than other sides.

Abstract: The invention relates to a control unit (6) for evaluating the sensor signal of a sensor (2), comprising at least one first sensor connection (21) and a second sensor connection (22) for connecting the sensor (2), wherein the second sensor connection (22) is connected to a short-circuit protection circuit (23), which is arranged between the second sensor connection (22) and a grounding (3), and which comprises a switchable transistor (7), by way of which the grounding (3) of the second sensor connection (22) can be interrupted.

Abstract: A ground fault detection device includes: a capacitor operating as a flying capacitor; a first switching unit for switching between a state in which a positive electrode side of a battery and a first electrode plate of the capacitor are connected via a resistance, and a state in which the first electrode plate of the capacitor is connected to the ground via a measurement resistance; a second switching unit for switching between a state in which a negative electrode side of a high-voltage battery and a second electrode plate of a detection capacitor are connected with a resistance, and a state in which the second electrode plate of the detection capacitor is connected to the ground via the resistance; a control unit for controlling the first switching unit and the second switching unit; and an offset voltage divider circuit that divides and offsets the voltage generated in the measurement resistance.

Abstract: Test system and methods for testing a wiring harness. In one embodiment, a remote tester of the test system includes a connector member comprising a terminal end having one or more terminals configured to mate with terminals in an electrical connector of the wiring harness, and a tester control member integrated on a back end. The tester control member includes a housing that protrudes from the back end of the connector member, test circuitry electrically coupled to the terminals of the connector member, a wireless transceiver that communicates with a central controller to receive a test program, and a battery. The test circuitry performs a test on the wiring harness based on the test program, and reports test results to the central controller.

Abstract: Apparatus and associated methods relate to determining health of an electrical heater of an air data probe based on a comparison between a calculated expected value and a measured value of an electrical property of the electrical heater. The expected value of the electrical property is calculated based in part on the electrical power provided to the electrical heater and further based in part on the aircraft flight parameters and/or environmental conditions. Such aircraft flight parameters and/or environmental conditions can include at least one of: electric power source status, airspeed, air pressure, altitude, air temperature, humidity, liquid water content, ice water content, droplet/particle size distribution, angle of attack, and angle of sideslip. These aircraft flight parameters and/or environmental conditions are received via an aircraft interface.

Abstract: A method capable of effectively detecting an earth state and an electrical apparatus using the same are provided. The electrical apparatus includes a first detection unit for detecting whether there is power between a power supply line L and an earth line G and outputting a first detection signal, a second detection unit for detecting whether there is power between a neutral line N and the earth line G and outputting a second detection signal, and an earth state determining unit for determining an earth state according to the first detection signal and the second detection signal and determining whether a power supply is connected in a normal phase or a reversed phase.

Abstract: An array of optically pumped magnetometers includes an array of vapor cells; and an array of beam splitters. The array of beam splitters is arranged into columns, including a first column, and rows. Each row and each column includes at least two of the beam splitters. The array of beam splitters is configured to receive light into the first column of the array and to distribute that light from the first column into each of the rows and to distribute the light from each of the rows into a plurality of individual light beams directed toward the vapor cells.

Abstract: Provided is a measuring method for testing a device under test (DUT) having a plurality of terminals and, particularly, to a means for measuring the functions and performance of various electronic devices in which an electronic circuit such as that in an electronic device, a semiconductor element, a circuit module, and a circuit board is mounted, and to: a method by which a processor supports measurement with software such that unit costs can be reduced to be lower than those of conventional means operating with various, high-cost hardware; and a device using the same.