Abstract: A state detection apparatus includes a communication circuit that transmits information to an external apparatus, a control circuit that operates the communication circuit at a first timing, a battery that supplies electric power to the communication and control circuits, and a first explosion-proof barrier connected between a contact circuit and the control circuit. The control circuit applies a test signal, generated based on voltage from the battery, to the contact circuit at a second timing arriving at shorter intervals than the first timing, acquires a detection signal indicating current flow in the contact circuit due to test signal application, and regardless of the first timing, operates the communication circuit when the detection signal is acquired to transmit to the external apparatus that the state of a device connected to the contact circuit is abnormal.

Abstract: A holding device, includes: a holding portion configured to hold a shunt resistor; a spacer portion extending from the holding portion and abutting on a front surface of a substrate on which a monitoring unit configured to monitor a current value of a current flowing through the shunt resistor is mounted; and an engaging portion extending from the holding portion and having an engaging claw to be engaged with a back surface of the substrate. The spacer portion separates the holding portion and the substrate from each other such that a connection portion which electrically connects the shunt resistor and the monitoring unit is visible.

Abstract: A method includes providing a detector disposed above a semiconductor structure; identifying a portion of the semiconductor structure at a temperature substantially greater than a predetermined threshold by the detector; rotating the stage; and deriving a position of the portion of the semiconductor structure based upon the rotation of the stage.

Abstract: A method and system for predicting an insulated gate bipolar transistor (IGBT) lifetime based on compound failure mode coupling are provided. First, a simultaneous failure probability model of a bonding wire and a solder layer is calculated. Next, expectancy of the simultaneous failure probability model is calculated and recorded as a lifetime under a coupling effect. A coupling function relation is established. A lifetime of the solder layer and a lifetime of the bonding wire are predicted. An IGBT lifetime prediction model not taking the coupling effect into account is established. An IGBT lifetime prediction model taking the coupling effect into account is established. In the disclosure, the lifetime of the IGBT module under the coupling effect of the solder layer and the bonding wire may be accurately predicted.

Abstract: An electronic device and a method performed in an electronic device for managing the power limit of a battery of a vehicle. The method including obtaining a first State of Health value of the battery at a first time, obtaining a second State of Health value of the battery at a second time, determining a rate of change of State of Health value of the battery, determining a power value by calculating a function that is dependent on the rate of change of State of Health of the battery and adjusting the power limit of the battery to the determined power value for managing the life time of the battery.

Abstract: A battery management system and method are provided, where the battery management system includes a monitoring IC including at least one channel for simultaneously measuring voltages of a battery cell, a busbar connected to the battery cell, and an auxiliary channel configured to measure a reverse voltage of the busbar, wherein the monitoring IC is configured to determine a voltage of the battery cell using a channel voltage measured through the at least one channel and the reverse voltage.

Abstract: A method for positioning a magnetic device providing an impulse ring forming a coder and at least three magnetic detection cells forming a magnetic sensor. The impulse ring being provided with a target having pairs of magnetic poles. The number of pair of magnetic poles being counted. The magnetic detection cells are positioned around the target of the impulse ring according to the number of pair of magnetic poles and according to the number of detection cells.

Abstract: A display test apparatus includes a measuring apparatus and a calculating device connected to the measuring apparatus. The measuring apparatus provides a sample pixel value to a first display device including a first display panel, measures a first color coordinate value of an image displayed by the first display panel in response to the sample pixel value. The calculating device generates a first parameter of the first display panel in response to the first color coordinate value, generates a target color coordinate value in response to the sample pixel value, and generates a first mapping table in response to the first color coordinate value, the first parameter and the target color coordinate value.

Abstract: A battery management apparatus according to the present disclosure includes a memory to store a charging sequence table that records a correspondence relationship between first to mth temperature ranges, first to mth SOC lists and first to mth current lists, a sensing unit to detect a voltage, a current and a temperature of a battery, and a control unit. Each of the SOC lists defines first to nth SOC ranges. The control unit determines a current SOC of the battery based on the detected voltage and the detected current. The control unit determines a temperature range of interest, a SOC list of interest and a current list of interest based on the detected temperature. The control unit determines a remaining charging time required to charge the battery to a target SOC based on the detected current, the current SOC, the SOC list of interest and the current list of interest.

Abstract: An electrical test device for testing electrical characteristics of a cable assembly with a plurality of cable connectors includes a frame having a test platform, and an electrical tester mounted on the frame for testing the electrical characteristics of the cable assembly. A cable connecting and holding mechanism is provided on the test platform and includes a plurality of connector carriers, wherein each connector carrier holds one of the plurality of cable connectors of the cable assembly and electrically connecting the one cable connector to the electrical tester.

Abstract: A test system for an electrical system includes a slot array having a plurality of slots and a plurality of recesses formed therethrough, a plurality of mounts in which each mount of the plurality of mounts is positioned within a respective recess of the plurality of recesses to align with a respective slot of the plurality of slots, a connector port having a plurality of pins, and a plurality of conductors in which each conductor of the plurality of conductors extends from a respective pin of the plurality of pins to a respective mount of the plurality of mounts. Each mount of the plurality of mounts is configured to receive an additional conductor via a corresponding slot of the plurality of slots to electrically couple the additional conductor to a corresponding pin of the plurality of pins via a corresponding conductor of the plurality of conductors.

Abstract: Provided is a method for detecting a metal target in soil using a metal detector including the steps of generating a transmit magnetic field for transmission into the soil using a transmit winding based on a transmit signal; receiving a first receive magnetic field using the transmit winding during a receive period to produce a first receive signal; and receiving a second receive magnetic field using a receive winding during the receive period to produce a second receive signal. The transmit winding and the receive winding are separated spatially; and producing an indicator output signal based on the first receive signal, the second receive signal and at least one synchronous demodulation function. The first receive signal includes first parameters that define a first transfer function transforming the first receive magnetic field into the first receive signal.

Abstract: An example system includes a first circuit board having first conductive traces, where a first conductive trace is for conducting an alternating current (AC) digital signal having an edge; a second circuit board having second conductive traces, where a second conductive trace is within a predefined distance of the first conductive trace to produce a contactless coupling with the first conductive trace, and where the contactless coupling enables electrical energy on the first conductive trace to manifest on the second conductive trace as a transient response that is based on the edge; and circuitry to reconstruct the edge based on the transient response from the second conductive trace.

Abstract: Methods and devices for the characterization of biological specimens by the use of electroluminescent materials. When placed in close proximity or direct contact to a biological specimen and an electrical signal is transmitted, electroluminescence is generated in response to the presence of the specimen. The electroluminescence produced can be in the form of an image of the specimen. The image is captured by an optical device that collects light and displays or otherwise processes the image according to the particular need or purpose. In general, the method requires preparing an electroluminescent assembly including the biological specimen, a dielectric layer, and a substrate, put together in any order. The method uses an electrical signal transmitted to the assembly. The device may be configured in a closed-circuit electrical configuration or it may be in a configuration where the EL assembly is at open circuit with respect to the power source.

Abstract: A method and system may include disposing an electromagnetic (EM) logging tool in a wellbore. The EM logging tool may include a transmitter disposed on the EM logging tool and a receiver disposed on the EM logging tool. The method may further include transmitting an electromagnetic field from the transmitter into one or more, measuring the eddy current in the one or more tubulars with the receiver, and forming an EM log from the plurality of measurements. Additionally, the method may include identifying a representative signature of a collar from the EM log, locating a plurality of signatures that are similar to the representative signature, iteratively locating a collar signature based at least in part on the representative signature, the plurality of signatures that are similar to the representative signature, and a joint length; and displaying a depth for each of the one or more collars.

Abstract: An integrated circuit includes a plurality of power transistor driver channels for driving external loads. The driver channels can be selectively configured as high-side (HS) or low-side (LS) driver channels. The integrated circuit includes, for each driver channel, a respective on-state test circuit and a respective controller. The on-state test circuits can be selectively configured to test for HS overcurrent conditions, LS overcurrent conditions, HS open load conditions, and LS open load conditions.

Abstract: Sonde devices for providing magnetic field signals for use with utility locators or other devices are disclosed. In one embodiment a sonde device includes a housing, a core comprising a plurality of core sections, and one or more support structures, which may include windings. Circuit and/or power supply elements may be disposed fully or partially within the core to control generation of predefined magnetic field frequencies and waveforms.

Abstract: A semiconductor integrated circuit includes a digital-to-analog converter and a built-in self-test circuit. The digital-to-analog converter performs a normal conversion operation to generate an analog output signal by converting a digital input signal corresponding to an external digital signal that is provided from an external device outside the semiconductor integrated circuit and provide the analog output signal to the external device. The built-in self-test circuit, while the digital-to-analog converter performs the normal conversion operation, performs a real-time monitoring operation to generate a comparison alarm signal based on the digital input signal and the analog output signal such that the comparison alarm signal indicates whether the digital-to-analog converter operates normally.

Abstract: A method for inspecting a display device includes preparing a target substrate comprising sub-pixels in which light-emitting elements are disposed, dividing each of first regions of the sub-pixels into second regions, obtaining a gray value of each of the second regions, generating a random number using the gray value, calculating a representative value of each of the first regions by reflecting variables in the random number, and summing the representative values of the first regions to calculate a number of light-emitting elements of the sub-pixels.

Abstract: Provided is a sensor device provided with improved reproducibility of a switching characteristic and reduced average consumption current. A sensor device include: a sensor; a drive circuit configured to drive the sensor; a processing circuit configured to output a binary result signal obtained by binarizing an electrical signal output from the sensor; a determination circuit configured to capture the binary result signal a plurality of times and perform a predetermined logical determination processing; a latch circuit configured to capture an output signal of the determination circuit; an output terminal; and a control circuit configured to output a control signal for intermittently controlling at least one of the drive circuit and the processing circuit such that an operation period and a pause period are repeated with a predetermined cycle. The operation period is interrupted and caused to transition to the pause period in a predetermined case.