Abstract: A diagnostic analyzer includes a track, a light-blocking member, a motor, and an optical testing device. The track moves a reaction vessel held by the track. The light-blocking member is disposed adjacent to the track. The light-blocking member moves from a first position apart from the track to a second position closer to the track. When the light-blocking member is disposed in the first position a sample contained within the reaction vessel held by the track is exposed to light. When the light-blocking member is disposed in the second position the sample contained within the reaction vessel held by the track is blocked from exposure to the light. The motor moves the light-blocking member between the first and the second positions. The optical testing device is disposed adjacent to the track for optically testing the sample contained within the reaction vessel held by the track when the at least one light-blocking member is disposed in the second position.

Abstract: The purpose of the present invention is to provide an automatic analysis device that combines a biochemical analysis unit and a blood coagulation analysis unit and has a high processing capacity while reducing device cost and life-cycle cost. An automatic analysis device is characterized in that when a synthetic-substrate item or latex-agglutination item from among synthetic-substrate, latex-agglutination, and clotting-time blood-coagulation-test items is made to be a first test item and the clotting-time item is made to be a second test item, if there is a measurement request for the first test item and second test item in the same specimen rack, a control unit determines the conveyance path of the specimen rack such that the first test item is measured using a biochemical analysis unit and the second test item is measured using a coagulation time analysis unit and controls a conveyance line.

Abstract: A cartridge for dispensing fluid is presented. The cartridge comprises a valve. The valve comprises a pumping chamber for pumping the fluid. The valve positions a pumping chamber conduit. The pumping chamber conduit is connected to the pumping chamber. The cartridge further comprises a plunger for changing the volume of the pumping chamber. The cartridge further comprises a reservoir conduit for connecting the reservoir with the valve. The valve positions the pumping chamber conduit to connect with the reservoir conduit. The cartridge further comprises an outlet conduit for dispensing the fluid. The valve further rotates the pumping chamber conduit to connect with the outlet conduit.

Abstract: There is provided an automated biological-sample-processing system comprising a pipette, a column of solid-phase material to which nucleic acid binds, a transport apparatus, an air-piston apparatus and an adaptor for coupling the pipette to the transport apparatus and to the air-piston apparatus, in which the adaptor is removably engageable with the transport apparatus and the air-piston apparatus for movement with the transport apparatus during processing of the sample, is couplable to the pipette so that the transport apparatus is controllable to position the pipette and so that the air-piston apparatus is controllable to draw a liquid into the pipette and to expel the liquid from the pipette, and is engageable with the column, in which the adaptor comprises a filter for preventing liquid or aerosol transfer between the pipette or column and the air-piston apparatus.

Abstract: A sensor unit for a vehicle includes a sensor circuit, a main part that supports the sensor circuit with at least one sensor contact, a connection cable, and a pot-shaped sleeve. The main part includes a sensor contact, a cable contact, and common contact support. The sensor contact is positioned on a first end of the contact support, and the cable contact is positioned on a second end of the contact support. The sensor contact is electrically connected to the at least one sensor contact via at least one sensor counter contact, and the cable contact is electrically connected to the connection cable via at least one cable contact. The sensor circuit is arranged on an end region of the contact support such that the sensor circuit is oriented in a predetermined detection direction. The detection direction is based on a bending angle of the end region relative to a longitudinal axis of the main part. The pot-shaped sleeve is fixed to the main part, and surrounds the sensor contact and the sensor circuit.

Abstract: Embodiments of the invention include an accelerometer system. The system includes an accelerometer sensor comprising first and second electrode configurations and an inertial mass between the first and second electrode configurations. In one example, the accelerometer sensor being fabricated as symmetrically arranged about each of three orthogonal mid-planes. The system also includes an accelerometer controller configured to apply control signals to each of the first and second electrode configurations to provide respective forces to maintain the inertial mass at a null position between the first and second electrode configurations. The accelerometer controller can measure a first pickoff signal and a second pickoff signal associated with the respective first and second electrode configurations. The first and second pickoff signals can be indicative of a displacement of the inertial mass relative to the null position.

Abstract: An accelerometer device configured for in-situ calibration applies a laser-induced pushing force at a first magnitude to a proof mass of an accelerometer, and while applying the laser-induced pushing force at the first magnitude to the proof mass, the device obtains a first output from the accelerometer. The device is further configured to apply a laser-induced pushing force at a second magnitude to the proof mass, and while applying the laser-induced pushing force at the second magnitude to the proof mass, the device obtains a second output from the accelerometer. Based on the first output and the second output, the device determines a scale factor for the accelerometer. The device is configured to determine a third output for the accelerometer, and based on the scale factor and the third output, determine an acceleration value.

Abstract: A holding device for detachably holding a magnetic sample holder or a sample body, in particular for a scanning probe microscope, wherein the holding device includes an accommodation unit for accommodating the magnetic sample holder or the sample body, a magnetic field guiding unit which, in a holding mode, is adapted for guiding a magnetic field for applying a magnetic holding force at the accommodation unit for holding the magnetic sample holder or sample body which is accommodated at the accommodation unit, and a magnetic field switching unit which is adapted for switching between at least two relative arrangements between the magnetic field guiding unit and the magnetic field switching unit, in order to selectively adjust the holding mode or a release mode, wherein in the release mode the magnetic sample holder or sample body is released for being detached from the accommodation unit.

Abstract: A device comprises elements for measuring current, the elements being housed in a casing. The casing includes a first portion and a second portion made of plastic, welded to each other, which together define a housing for receiving the measuring elements. The first portion is opaque in order to absorb a laser beam for welding the portions, and the second portion is transparent in order to let the laser beam pass. The process for manufacturing the device includes a fitting step in which the measuring elements are fitted into the casing and an assembly step in which the portions of the casing are joined together using a laser welding process.

Abstract: A signal acquisition probe stores compressed or compressed and filtered time domain data samples representing at least one of an impulse response or step response characterizing the signal acquisition probe. The compressed or compressed and filtered time domain data samples of the impulse response or the step response are provided to a signal measurement instrument for compensating the signal measurement instrument for the impulse or step response of the signal measurement instrument.

Abstract: A test probe head for probe testing multiple chips on a wafer in a single probing. A probe head substrate includes an array of probe tip attach pads on one surface. The array includes a subarray for each probe head chip test site. Probe tips attached to each probe tip attach pad have an across the head tip height variation less than one micrometer (1 ?m). The subarray probe tips may be on a pitch at or less than fifty microns (50 ?m). The test probe head may be capable of test probing all chips in a quadrant and even up to all chips on a single wafer in a single probing.

Abstract: A testing device for wafer level testing of IC circuits is disclosed. An upper and lower pin (22, 62) are configured to slide relatively to each other and are held in electrically biased contact by an elastomer (80). To prevent rotation of the pins in the pin guide, a walled recess in the bottom of the pin guide engages flanges on the pins. In another embodiment, the pin guide maintains rotational alignment by being fitted around the pin profile or having projections abutting the pin. The pin guide (12) is maintained in alignment with the retainer 14 by establishing a registration corner (506) and driving the guide into the corner by elastomers in at least one diagonally opposite corner.

Abstract: Probe systems and methods including electric contact detection. The probe systems include a probe assembly and a chuck. The probe systems also include a translation structure configured to operatively translate the probe assembly and/or the chuck and an instrumentation package configured to detect contact between the probe system and a device under test (DUT) and to test operation of the DUT. The instrumentation package includes a continuity detection circuit, a test circuit, and a translation structure control circuit. The continuity detection circuit is configured to detect electrical continuity between a first probe electrical conductor and a second probe electrical conductor. The test circuit is configured to electrically test the DUT. The translation structure control circuit is configured to control the operation of the translation structure. The methods include monitoring continuity between a first probe and a second probe and controlling the operation of a probe system based upon the monitoring.

Abstract: An electrical safety product circuit topology and its equivalent variations for sensing, control, and reporting of household AC wall current, voltage, power, and energy use, and status of its Ground-and-Arc-Fault-Interrupting internal circuit breaker, is presented herein. The architecture includes any choice of telemetry platform, presumes a plurality of its kind join a wireless network with a plurality of other products endowed with the same platform faculty. Topology variations claimed include current and differential current sensing by toroid or other transformer or by Hall semiconductor means, and include fault condition recognition by microprocessor-based algorithms, or by various analog circuit or digital signal processing (DSP) means. Embodiment variations claimed include any modular circuit breaker panel component form factor, any in-wall outlet or switch-box form factor, and any plug-in AC socket module, in-cord module, and outlet strip form factor.

Abstract: A test and measurement instrument includes a coefficient storage facility coupled to a programmable filter. The coefficient storage facility is configured to store at least two pre-determined filter coefficient sets, and configured to pass a selected one of the at least two pre-determined filter coefficient sets to the filter based on a measurement derived using a compensation oscillator. The measurement may include clock delay and clock skew. In some examples the test and measurement instrument may additionally adjust clock delay and/or clock skew in addition to selecting appropriate filter coefficients.

Abstract: The present invention relates to a system, a measurement probe and a method for measuring an electrical property of an electrical circuit, comprising measuring the electrical property by means of a measurement probe connected to the electrical circuit, converting the measured electrical property of the electrical circuit to an optical signal. The method further comprises sending the optical signal, and receiving the optical signal by means of an image sensor configured to record images comprising the measurement probe that transmits the optical signal. The method further comprises processing the recorded images in order to decode the measurement data from the received optical signal.

Abstract: Each of three magnetic sensors is positioned on a first virtual line that passes the centers of two magnetic shields in the width direction and is perpendicular to a virtual plane, so a value detected by the magnetic sensor is less likely to be influenced by an external magnetic field. The first virtual line and the center of a conductor intersecting the first virtual line are separated from each other by a certain distance. Therefore, even if a distance from the center of the conductor in the width direction to the magnetic sensor is short, it is possible to improve, on a high-frequency side, frequency characteristics in the detection sensitivity of the magnetic sensor for the frequency of the current under measurement.

Abstract: A current detection device includes plural bus bars, plural magnetic detection elements that are arranged respectively corresponding to the bus bars, a magnetic shield arranged to surround parts of the bus bars and the magnetic detection elements, a correction factor calculation unit that, on the basis of voltages output from the magnetic detection elements when any two or more of the bus bars are supplied with inversely phased currents, calculates correction factors for correcting mutual interference between the magnetic detection elements, a recording medium that holds the correction factors calculated by the correction factor calculation unit, and a current calculation unit that, using the correction factors held in the recording medium, calculates the currents flowing through the bus bars on the basis of the voltages output from the magnetic detection elements.

Abstract: A method of estimating a root mean square (RMS) of an alternating current (AC) voltage is provided. The system includes a rectifier configured to rectify the AC voltage and a controller configured to derive a delayed AC voltage by delaying the rectified AC voltage by a preset delay time. The controller is configured to estimate a root mean square (RMS) of the AC voltage based on the rectified AC voltage and the delayed AC voltage.

Abstract: The present disclosure provides a power management apparatus of a vehicle and a method of controlling the same, for determining whether a power circuit of a vehicle controller is abnormal. The power management apparatus includes a battery, a battery sensor configured to acquire voltage information of the battery, and a controller configured to receive the voltage information of the battery, to compare a second voltage and a third voltage with preset reference information, and to determine whether power is abnormal, wherein a first voltage is measured by the controller, the second voltage is adjusted by converting the first voltage into a digital signal, and the third voltage is measured by the battery sensor.

Abstract: A method and device for detecting inductor current of a PFC circuit are disclosed, which relates to the field of power supply technology. The method includes: detecting a voltage on a boost inductor of a critical-conduction mode PFC circuit, and obtaining an inductor voltage detection signal (S1); converting the inductor voltage detection signal into a voltage signal whose waveform is consistent with a current waveform of the inductor to serve as an inductor current detection signal, to perform loop protection on the PFC circuit or perform over-current protection on the PFC circuit by using the inductor current detection signal (S2).

Abstract: A fast algorithm is used to study the transient behavior due to a step-like pulse applied to a nano-chip. This algorithm is carried out on a computer and consists of two parts: The algorithm I reduces the computational complexity to T0N3 for large systems as long as T<N; The algorithm II employs the fast multipole technique and achieves scaling T0N3 whenever T<N2 beyond which it becomes T log2 N for even longer time. Hence it is of order O(1) if T<N2. Benchmark calculation has been done on graphene nanoribbons with N=104 and T=108. This new algorithm allows many large scale transient problems to be solved, including magnetic tunneling junctions and ferroelectric tunneling junctions that could not be achieved before, and using less computing capacity.

Abstract: An intelligent electronic device (IED) having a touch sensitive user interface is provided. The intelligent electronic device includes a housing; at least one sensor coupled to the electric circuit and configured to measure at least one parameter of the electrical circuit and generate at least one analog signal indicative of the at least one parameter; at least one analog to digital converter coupled to the at least one sensor and configured to receive the at least one analog signal and convert the at least one analog signal to at least one digital signal; at least one processor configured to receive the at least one digital signal and calculate at least one power parameter of the electrical circuit; and an user interface configured to receive input from a user, the user interface including at least one touch sensitive sensor configured to detect the user input.

Abstract: An apparatus for detecting quality of an indoor power distribution line including a power input module, a switch circuit, a load circuit and a detecting module is provided. The power input module receives an AC power through an indoor power distribution line. The switch circuit is controlled by the detecting module to transmit the AC power to the load circuit. When the switch circuit is on, the detecting module detects a voltage and a current of the load circuit to respectively serve as a first voltage value and a first current value. When the switch circuit is off, the detecting module detects a voltage of the AC power to serve as a second voltage value. The detecting module determines the quality of the indoor power distribution line based on a measurement resistance thereof obtained according to the first voltage value, the first current value and the second voltage value.

Abstract: In accordance with one illustrative embodiment, a system for determining a self-discharge current characteristic of a storage cell (or a bank of storage cells) includes a voltage source, first and second voltage measurement circuits, a current measurement circuit, and a processor. The voltage source provides a potentiostat voltage to the storage cell coupled to the system. The first voltage measurement circuit provides a first voltage resolution for measuring an open circuit voltage across a pair of terminals of the storage cell. The second voltage measurement circuit provides a second voltage resolution that is significantly higher than the first voltage resolution for measuring a terminal voltage at one of the pair of terminals of the storage cell. The processor executes a test procedure by using the voltage source, the first and second voltage measurement circuits, and the current measurement circuit, to determine the self-discharge leakage current characteristic of the storage cell.

Abstract: An earth fault detector has a controller, a capacitor, a positive side power line connected to a positive side of the high voltage battery, a negative side power line a negative side thereof, a positive second side resistance, a negative second side resistance, a positive side C contact switch, and a negative side C contact switch. The positive side C contact switch switches a connection destination of a first end of the detection capacitor to either a path including the positive side power line or a path including the positive second side resistance. The negative side C contact switch switches a connection destination of a second end of the detection capacitor to either a path including the negative side power line or a path including the negative second side resistance. The controller controls switching of a first and second measurement modes.

Abstract: A system for use in a wellbore can include a supercapacitor health measurement device including circuitry for determining a capacitance of a supercapacitor that is positionable in the wellbore. The supercapacitor health measurement device can also include circuitry for determining an equivalent series resistance (ESR) value of the supercapacitor. The supercapacitor health measurement device can further include circuitry for transmitting the capacitance and the ESR value. The system can also include a remote device that is positionable aboveground for receiving the capacitance and ESR value.

Abstract: A device for classifying electrical contacting between a first connecting element of a battery and a second connecting element, which is directly or indirectly connected to an electrical load. A temperature sensor is provided for detecting the temperature of the first connecting element and/or of the second connecting element and a control device, which is coupled to the temperature sensor and which is configured, on the basis of a detecting signal of the temperature sensor, to classify the electrical contacting between the first connecting element and the second connecting element. A corresponding method and to a battery system, as well as a battery receiving system including such a device for classifying electrical contacting. Moreover, there is provided an electrical power supply system with such a battery system and such a battery receiving system.

Abstract: A sensor device includes at least two transducers, a sensor signal processing circuit, and a transducer to sensor signal processing circuit electrical connections, each connecting a respective one of the transducers to the sensor signal processing circuit. The device also includes a differential amplifier connected with two bond wires, the bond wires connected to the differential inputs of the differential amplifier and the amplifier output connected to the sensor signal processing circuit.

Abstract: Propagating brush discharge testing systems include an initiation electrode, a high-voltage switch, a sensor, and a controller. The initiation electrode has an exposed tip positioned adjacent to a surface of a test article. The high-voltage switch is configured to selectively isolate the initiation electrode from ground potential. The sensor is positioned and configured to detect a propagating brush discharge between the initiation electrode and the test article. The controller is programmed to operate the high-voltage switch to ground the initiation electrode.

Abstract: An oil resistance test method for an electronic device is provided. At least one type of resin material is provided on at least a portion of an outer surface of the electronic device. The oil resistance test method includes: setting a test temperature; and immersing the electronic device in a water-soluble cutting oil in an atmosphere of the set test temperature. This cutting oil contains a mineral oil and a surfactant, and exhibits a milky-white appearance when diluted with water. The oil resistance test method further includes: determining, based on an electrical characteristic of the electronic device, whether or not the electronic device has been degraded by the cutting oil; and estimating, based on a total immersion time of the electronic device in the cutting oil until degradation of the electronic device is detected, a life of oil resistance of the electronic device.

Abstract: Semiconductor module testing equipment includes a test board, a plurality of pipe structures extending from an upper surface of the test board in a first direction and spaced apart from one another in a second direction that intersects the first direction, wherein the first and second directions are substantially parallel to a plane of the test board, at least one semiconductor module socket disposed between a pair of neighboring pipe structures of the plurality of pipe structures, and a plurality of nozzles disposed on each pipe structure of the plurality of pipe structures, wherein the plurality of nozzles is configured to discharge a fluid laterally.

Abstract: An operation voltage testing circuit includes a voltage generating circuit, a current-to-voltage conversion circuit, and a processing circuit. The voltage generating circuit is configured to generate a first voltage signal according to a first current signal, such that a photoelectric conversion unit generates a second current signal corresponding to the first voltage signal. The current-to-voltage conversion circuit is configured to generate a second voltage signal corresponding to the second current signal. The processing circuit is configured to receive the second voltage signal and to selectively adjust and output the first current signal according to the second voltage signal and a threshold value, such that the voltage generating circuit selectively adjusts the first voltage signal according to the first current signal.

Abstract: A measurement arrangement and method for providing at least one combined measurement dataset, said measurement arrangement comprising at least one measurement device configured to generate measurement data in a measurement session, and a mobile device configured to generate measurement session context data of said measurement session, said measurement device and said mobile device being connected via at least one wireless link for data transfer, wherein the measurement data generated by said measurement device and associated measurement session context data generated by said mobile device are linked to provide a combined measurement dataset.

Abstract: Systems, methods, and devices for monitoring one or more capacitor banks are presented herein. One concept of the present disclosure is directed to a method of monitoring at least one capacitor bank having a plurality of steps. The method includes: receiving measurements indicative of voltages and/or currents on electrical lines coupled to the steps of the capacitor bank by corresponding contactors; receiving information indicative of the respective statuses of the contactors; timestamping the measurements and contactor status information; storing the timestamped measurements with corresponding timestamped contactor status information; determining a rate of change of a parameter indicative of or derived from at least the measurements associated with at least one of the steps in the capacitor bank; comparing the determined rate of change with a baseline rate of change to produce a deviation; determining if the deviation satisfies a criterion; and, if so, indicating the deviation satisfied the criterion.

Abstract: Apparatuses including test segment circuits and methods for testing the same are disclosed. An example apparatus includes a plurality of segment lines configured to form a ring around a die and a plurality of test segment circuits, each test segment circuit coupled to at least two segment lines of the plurality of segment lines. Each test segment circuit is coupled to a portion of a first signal line, a portion of a second signal line, and a portion of a third signal line and each test segment circuit is configured to control an operation performed on at least one segment line of the plurality of segment lines.

Abstract: A method of circuit yield analysis for evaluating rare failure events existing in multiple disjoint failure regions defined by a multi-dimensional parametric space, the method including performing initial sampling to detect failed samples respectively located at multiple failure regions in the multi-dimensional parametric space, performing clustering to identify the failure regions, performing feature filtering to determine which parameter component is a non-principal component in affecting circuit yield, applying a dimensional reduction method on a dimension corresponding to the parameter component, optimizing an importance sampling (IS) distribution function corresponding to each of the failure regions, and constructing a final importance sampling (IS) distribution function using a mixed Gaussian (mGaussian) function corresponding to all of the failure regions.

Abstract: A method for minimizing a test set for optimal coverage is disclosed. The method includes generating a first test set which is both an empty and minimal test set. Then, generating a second test set with a predetermined number of tests. Further, partitioning the second test set into a control test set and an experiment test set. Subsequently, providing a list of tests for coverage by merging the control test set with the first test set to form a merged list of sets.

Abstract: This disclosure describes a reduced pin bus that can be used on integrated circuits or embedded cores within integrated circuits. The bus may be used for serial access to circuits where the availability of pins on ICs or terminals on cores is limited. The bus may be used for a variety of serial communication operations such as, but not limited to, serial communication related test, emulation, debug, and/or trace operations of an IC or core design. Other aspects of the disclosure include the use of reduced pin buses for emulation, debug, and trace operations and for functional operations.

Abstract: A method and an apparatus for determining the electric resistances of coil connections (RSi) of connections (1-12) of coils (Bi) of a winding (102) of a dynamo electric machine, which includes a plurality of coils (Bi) connected in series. A first current (I1) is generated through a first coil connection (1) of a first coil (B1) of the winding (102). Furthermore, a second current (I2) is generated through a first coil connection (3, 7) of a second coil (B2, B6) of the winding in such a way as to eliminate the current flowing through a portion (B8-B11) of the winding, which is proximate to the first coil connection (1) of the first coil (B1) and the first coil connection (3,7) of the second coil (B2, B6). A third current (I3) is also generated in a second coil connection (2) of the first coil (B1). The generating of the first current (I1), the generating of the second current (I2), and the generating of the third current (I3) are made with respect to a common potential (13).

Abstract: A method and a system are provided for determining a maximum charge current or a maximum discharge current of an energy storage cell of an energy storage device. The method includes providing a predetermined upper voltage limit or lower voltage limit, and providing a time horizon as a time difference from a present time to a future time. The method also include, with a repetition time period different from the time horizon, repeating measuring a present voltage level of the energy storage cell, calculating a voltage difference between the present voltage level and the upper voltage limit or the lower voltage limit, and determining the maximum charge current or maximum discharge current corresponding to the voltage difference and a model, such that the estimated voltage is within the voltage limits.

Abstract: A system and method for monitoring characteristics of an electric energy device includes generating an external short from the electric energy device. The external short occurs at a known distance from a sensor and has at least one known external resistance. The received signal representing change in electromagnetic field due to the applied external short may be analyzed to determine a signal parameter that is then analyzed in comparison to a lookup table, based on the known conditions including distance, temperature and the external resistance. The output of this analyses in comparison with expected values may be utilized to identify a characteristic of the energy device.

Abstract: Disclosed herein is an apparatus for updating charging/discharging efficiency factors of an energy storage system. The apparatus includes: a correlation coefficient calculate unit configured to calculate correlation coefficients between n charging/discharging reference values input to the energy storage system during a predetermined update cycle and (n+k) charging/discharging power values measured in the energy storage system after the predetermined update cycle has started, where n and k are natural numbers; a selection unit configured to select n charging/discharging power values corresponding to the n charging/discharging reference values among the (n+k) charging/discharging power values based on correlation coefficients; and an update unit configured to update the charging/discharging efficiency factors set for each power range with n charging/discharging efficiency factors calculated by using the n charging/discharging reference values and the selected n charging/discharging power values.

Abstract: A system detects and/or predicts metal ion plating events of a metal ion energy storage device. The system includes an optical sensor disposed internally within or externally on a metal ion energy storage device wherein the optical sensor has an optical output that changes in response to strain within a metal ion energy storage device. A current sensor senses current through the metal ion energy storage device. Plating detection circuitry measures a wavelength shift in the optical output of the optical sensor and estimates a state of charge (SOC) of the metal ion energy storage device based on the current. An expected wavelength shift is determined from the estimated SOC. A plating event can be detected and/or predicted based on the difference between the expected wavelength shift and the measured wavelength shift.

Abstract: A state estimation device includes: a current integration unit configured to integrate a current that flows through the energy storage device; and a first estimation unit configured to estimate a full-charge capacity of the energy storage device. The energy storage device has a correlation characteristic of correlation between a residual capacity C and an open voltage V, the correlation characteristic including a constant region in which a time change in the correlation characteristic is relatively smaller than an other region.

Abstract: A semiconductor device for measuring a voltage of a battery cell, including first and second nodes, and first and second battery voltage measurement units. The first node is configured to receive a first voltage, the first voltage being a voltage of a capacitor that accumulates an electric charge based on the voltage of the battery cell. The first battery voltage measurement unit measures the first voltage through a first path. The second node is configured to receive a second voltage based on the voltage of the battery cell, the second node being different from the first node. The second battery voltage measurement unit measures the second voltage through a second path that is different from the first path.

Abstract: An apparatus for calculating a degradation degree is provided and includes a battery and a measurer that senses the battery to generate behavior information. The apparatus further includes a calculator that divides the behavior information into a plurality of sections and calculates a behavior change quantity in each section and/or charging capacity in each section of the behavior information in each section. The calculator uses the behavior change quantity in each section and the charging capacity in each section to determine the degradation degrees of the battery in each section, and use the degradation degrees of the battery within each section to generate a final degradation degree of the battery.

Abstract: An apparatus for estimating a battery degradation state, a system including the same, and a method thereof are provided. The battery degradation state estimation system includes a battery degradation state estimation apparatus, implemented by a processor, that estimates a battery degradation state by using a correction coefficient calculated from a difference between a first open circuit voltage (OCV), calculated from battery state information, and a second open circuit voltage (OCV_i), acquired based on a change amount of a battery state of charge (SoC) determined by current integration, and a memory device that stores the first open circuit voltage (OCV), the second open circuit voltage (OCV_i), and the correction coefficient.

Abstract: A battery management system (BMS) described herein determines the internal resistance for a cell that may have an internal short circuit. In one aspect, the BMS monitors the voltage across each of a plurality cells that are coupled in series. If the voltage across one of the cells differs from the voltages across the other cells, the BMS can flag the cell as potentially having an internal short circuit. Once flagged, the BMS can use a simulator that stores a model cell that has similar characteristics as the cells monitored by the BMS to determine the internal resistance of the flagged cell. In one aspect, the simulator changes the value of a surrogate resistor that is parallel with the model cell until the voltage across the model cell matches the voltage of the flagged cell. The value of the surrogate resistor indicates the internal resistance of the flagged cell.

Abstract: A system and method for testing a power supply. A selection of one or more power supplies to test is received. A tester is automatically configured to test the one or more power supplies utilizing test parameters associated with the selection. A power-end of each of the one or more power supplies is received in power ports of the tester. An adapter-end of each of the one or more power supplies is received in adapter ports of the tester. The one or more power supplies are automatically tested utilizing test parameters. Performance characteristics of the loop one or more power supplies are measured during testing. Indications are given whether each of the one or more power supplies past the testing.