Abstract: The tips of the lug portions of the board touches the bottom of the opening between the projecting portions and the step portions, when the upper mold and the lower mold are fit together with inserted. Thus the board is retained with positioning to the molds certainly. After molds are fit together with inserted as mentioned above, polyamide resin is injected into the molding space from a resin-material-injecting orifice provided on the upper mold.

Abstract: The power source apparatus has a plurality of battery modules, comprising a plurality of batteries joined in a straight line fashion, housed in a case. These battery modules are connected via bus-bars. Metal plate output terminals are attached to both ends of a battery module in a manner that is perpendicular to, and projecting from the battery end-planes. The case of the power source apparatus houses battery modules with adjacent battery module output terminals connected via bus-bars.

Abstract: A voltage equalizing apparatus for battery devices includes a core, a plurality of first battery devices interconnected in series with each other, each consisting of one or more cells, a plurality of secondary windings magnetically connected with each other through the core, a plurality of first switching devices, each connected to one of the plurality of secondary windings and one of the plurality of first battery devices to constitute a first closed circuit, one or more second battery devices provided separately from said plurality of first battery devices interconnected in series or a second battery device provided by rendering the whole of said plurality of first battery devices interconnected in series one battery device, a primary winding magnetically connected with the plurality of secondary windings through the core, and a second switching device connected in series with the second battery device and the primary winding to constitute a second closed circuit.

Abstract: An equipment system includes a battery unit (10) having a monitoring circuit (14), which detects at least one operating parameter of the battery unit (10) and furnishes a control signal, dependent on the operating parameter, for switching means (25, 31). The switching means control the charging and discharging process of the battery unit (10) and are located in the electrical device (20) and in the charger (30), respectively. From the battery unit (10), the control signal is transmitted to the switching means (25, 31) in the electrical device (20) and in the charger (30), respectively. By this provision of shifting the switching means (25, 31) out of the battery unit (10) into the electrical device (20) and into the charger (30), respectively, the heat development in the battery unit (10) and also its structure size are reduced.

Abstract: A high frequency charger includes a charge circuit for charging a depleted battery and a boost circuit for jump-starting a vehicle. Two separate high frequency transformers are provided for the charge and boost circuits. A selector switch selectively activates at least one of the charging circuit and the boost circuit.

Abstract: A chargeable battery or a battery pack stores electrical energy, and supplies the electrical energy to a portable terminal device connected to the battery pack. A display device of the battery pack derives a value of a current flowing through a sensor which is connected to the chargeable battery. The display device derives the remaining amount of electrical energy stored in the chargeable battery, by adding up the derived current value. The display device includes a plurality of photodiodes, and shows the remaining amount of electrical energy stored in the chargeable battery, by lighting up corresponding number of photodiodes corresponding to the derived remaining amount.

Abstract: A charge/discharge protection apparatus of the present invention includes a switch provided on a charge/discharge current line, the charge/discharge current line being connected to a secondary battery of a battery pack. A charge-state overcurrent detector outputs a control signal when a charge-state overcurrent condition of the battery is detected in a charge state of the battery pack. A control unit sets the switch in OFF state to cut off connection between the charge/discharge current line and the battery in response to the control signal output by the charge-state overcurrent detector. The charge/discharge protection apparatus has a capability to detect the charge-state overcurrent condition of the battery, and protects the secondary battery from being damaged due to the charge-state overcurrent condition.

Abstract: A charge/discharge protection circuit prevents a charge control FET from being overheated or ignited so as to improve safety by preventing an oscillating operation of the charge control FET, which is connected to a charge path of a secondary battery in series so as to cut off a charge current. A discharge control FET is connected to the charge path in series so as to cut off a discharge current from the secondary battery. A latch circuit latches an overcharge detection signal output from an overcharge detection circuit and outputs a signal so as to control the charge control FET. A delay circuit delays the discharge over-current detection signal and supplies the delayed discharge over-current detection signal to the discharge control FET. A reset circuit resets the latch circuit so as to turn on the charge control FET when a discharge over-current is detected and an overcharge is not detected.

Abstract: This invention relates to a portable external storage device including a battery which supplies power to a communication section which communicates with a plurality of information processing apparatuses, a detection unit which detects a remaining amount of the battery, a storage unit which stores setting information representing a notifying method for information about a remaining amount of the battery transmitted from the information processing apparatus serving as a host device, and a remaining amount of the battery at which a warning is generated, and a notifying unit which notifies the host device of information about the remaining amount of the battery detected by the detection unit on the basis of the setting information stored in the storage unit.

Abstract: A method of charging a battery from a power source is provided. The method includes providing a charge circuit in series with the battery and the power source. A charging current flowing to the battery and a voltage across the charge circuit are sensed. The power dissipated in the charge circuit is computed based on the charging current and the voltage across the charge circuit. During a first operating mode, the charging current is controlled so that the power dissipated in the charge circuit is about a predetermined maximum dissipation. During a second operating mode, the charging current is limited to a predetermined current level. During a third operating mode, the charging current is controlled so that the battery voltage is about a predetermined voltage level.

Abstract: The invention is directed to a method and an arrangement (10) for controlling an electrically operated charger (1), which essentially prevent a sudden drop in voltage with the run-up of the electric charger. A drive signal (AS) is formed, which drives the electric charger (1). The rate of change of speed for an increase of the rpm of the electric charger (1) is pregiven in dependence upon the instantaneous supply voltage (UV).

Abstract: A device for charging a battery comprises an alternating current source, a rectifier being connected with its input to the alternating current source and being connected with its output to the battery for charging thereof. It also has a member for measuring the charging current from the rectifier to the battery and a means (13) for comparing the measured charging current with a current limit value and an arrangement adapted to control the voltage on the output of the rectifier based on information about said comparison and decrease it if the measured current exceeds the current limit value for reduction of the charging current.

Abstract: A charging circuit, and method of performing the same, having a primary switching circuit that controls the transfer of energy between windings in a transformer based upon a reconstruction of a secondary winding current, in a primary winding side of the transformer, without directly sampling the secondary winding current, such that the secondary winding is isolated from the primary winding. The reconstruction of secondary winding current is performed by sampling a voltage across the primary winding reflected from the secondary winding, and integrating the sampled voltage using a current source driven according to the sampled voltage and a capacitor. The primary switching circuit operates to turn on an energizing of the primary winding when the integrated sampled voltage indicates that the flux density of the transformer, after a transfer of energy between primary and secondary windings, lowers to a predetermined level.

Abstract: Each of the phases of coil in an armature winding of a dynamoelectric machine is constructed so as to have six turns, an inverter has a plurality of element-diode sets, each element-diode set including a pair of switching elements connected in series and diodes connected in parallel to the switching elements, connection points of the switching elements connected in series are connected to the dynamoelectric machine, a control apparatus controls the inverter such that the dynamoelectric machine is driven by supplying electric power from a first battery to the dynamoelectric machine during starting of an engine, and alternator mode electric power generation is performed by the dynamoelectric machine at least in a normal rotational speed region of the engine.

Abstract: The present invention provides a multi-output DC-DC converter which supplies an input direct voltage to a series circuit consisting of a primary winding (3a) of a transformer (3) and a switching circuit (2) to obtain first and second output direct voltages from a secondary winding (3b) of the transformer (3) via first and second rectifying circuits, wherein a switching signal of the switching circuit (2) is controlled corresponding to the first output direct voltage so that the first output direct voltage is caused to be constant, and a variable reactor (10) is inserted into the second rectifying circuit. Thus, loss of power can be reduced in a simplified configuration.

Abstract: A switching power supply circuit is protected from degradation and breakage of a MOS transistor when the inductive load is short-circuited or overloaded. To do this, the magnitude of the load current flowing through the MOS transistor is detected by a differential amplifier as a voltage drop due to the on resistance of the MOS transistor, a first latch circuit is set by the detection output of the differential amplifier generated when the voltage drop exceeds a predetermined value, and the first latch circuit is reset by the output of a control signal generating circuit controlling the MOS transistor. Current supplies from two constant current sources are switched between in accordance with the output of the first latch circuit to charge and discharge a capacitor for timer time setting. Then, the charging voltage of the capacitor is detected by a comparator, and a second latch circuit is set by the output of the comparator generated when the charging voltage exceeds a predetermined value.

Abstract: A power supply device which converts a voltage by a switching method is connected to a load. Whether a current supplied from the power supply device to the load falls within a proper range is determined. At this time, while preventing an increase in cost in current detection and reducing Joule loss caused by an unwanted resistance component, it is determined that the current falls within the proper range. In order to determine a current supplied from a DC/DC converter to the load, a current determination unit (1) is arranged. The current determination unit (1) compares, with a preset voltage, a voltage obtained by DC-detecting a gate driving pulse signal used to turn on/off a switching MOS transistor (3), thereby determining whether the current flowing from the DC/DC converter to the load exceeds a predetermined current (proper range). In current detection, Joule loss by an unwanted resistance component can be reduced.

Abstract: A power output controller includes an output stage, a sensing circuit that compares an output voltage of the output stage with a reference voltage, and a digital controller that controls output pulses that charge the output stage with a frequency that is dependent on an output of the sensing circuit.

Abstract: An analog filter in an integrated circuit is tested by placing the filter in a feedback loop. The filter is tested by determining whether the analog filter, while in the feedback loop, provides a signal that oscillates within a predetermined tolerance of an expected frequency.

Abstract: An automatic integrated circuit testing system, device and method using an integrative computer. The system includes a machine frame having at least one testing computer for holding and testing the integrated circuit. The machine frame also has at least one automatic plugging/unplugging machine for engaging the integrated circuits with the computer system and removing the integrated circuits after testing has been completed. The machine frame further includes at least one controller device electrically connected to the testing computer and the automatic plugging/unplugging machine for controlling the movements of the automatic plugging/unplugging machine and the testing computer. The testing computer and the integrated circuit together form an integrative computer system capable of executing various general application programs and special testing programs for integrative testing and analysis.

Abstract: A probe station.

Abstract: A method and apparatus for providing information from a speed and direction sensor is disclosed The method and apparatus detect the presence of a ferromagnetic object as it moves past a sensor The sensor determines speed and direction information regarding the ferromagnetic object, and further provides information relating to the environment surrounding the sensor or object, such as the status of an air gap between the sensor and the moving object, and the temperature of the environment in which the sensor or object is disposed

Abstract: A measuring instrument (10) for contactless detection of an angle of rotation comprises a magnetically nonconductive rotor (11), on which a magnet (6) is disposed, and a stationary magnetically sensitive element (1) for generating a measurement signal. The magnetically sensitive element (1) has two sensitive faces (2, 3) spaced apart by a distance (x).

Abstract: A compensation circuit for compensating for switching point errors in rotating target or gear tooth sensors. The compensation circuit may include a processing unit and a persistent storage device, such as an electrically erasable programmable read-only memory (EEPROM), for storing compensation values that are used to provide automatic compensation of the rotating target sensor after the sensor module is installed by the end user. The actual and compensation values may be determined and stored as linear functions in the form of mX+b, where X is the frequency of the rotating target, m is the slope and b is the y-intercept. In order to provide compensation, the actual slope value m is multiplied by a compensation value. The y intercept (i.e. b) is selected, for example, to be the maximum speed in a given application. The compensation values (i.e.

Abstract: This method consists in supplying at least a first alternating signal, at a determined frequency, to one end of a stator coil and recuperating a measurement signal at a second end of said coil, said measurement signal being provided to electronic processing means, which are arranged to extract data relating to a periodic variation of the effective inductance of the stator coil. This variation is a function of the angular position of the rotor. By alternately carrying out such a measurement on the stator coils, three periodic curves can be extracted (SPCA, SPCB, SPCC) defining a zigzag curve (70) allowing the angular position of the rotor to be determined.

Abstract: A sensor device includes the ability to determine part presence and at least one physical characteristic of the part. A drive coil and sense coil are arranged so that a voltage applied across the drive coil causes a response in the sense coil, which is influenced by the presence of the item of interest. In a first mode, a controller determines whether the item is present by determining an amount of coupling between the drive coil and the sense coil, which is indicative of whether a part is present near the sense coil. In a second mode, the controller determines an amount of magnetic flux that is indicative of a thickness of the material. In another mode, constant current applied to the drive coil instigates a voltage across both coils. The amplitude of the sense coil voltage and a phase shift of the sense coil voltage relative to the drive coil voltage provides material thickness information.

Abstract: A strain sensor includes a sensor section having a magnetic material provided on one surface of a conductor, the magnetic material being formed integrally with the conductor and having a magnetic strain constant with an absolute value larger than 1×10−7, a fixing mechanism which fixes at least a part of the sensor section, an inductor disposed in a surface side of the sensor section which is opposite the surface on which the magnetic material is provided, the inductor being disposed opposite and away from the sensor section, and a detection unit which detects the amount of deformation of the sensor section caused by stress applied thereto on the basis of a change in inductance of the inductor.

Abstract: High balance, in the range of about 4×10−4 to about 10−3, is achieved in a gradiometer using Pyrex as the gradiometer support material. A superior technique is disclosed for winding superconducting wire loops with equal loop areas wherein cyanoacrylate glue is used to reduce slack in the wire in the process of winding. Furthermore, a minimal number of turns for each gradiometer type are used to maintain gradiometer sensitivity and to maintain high degree of mechanical balance. Additionally, low sensitivity SQUID magnetometers with optimally selected loop areas are placed among gradiometer channels in the directions of x, y, and z to measure magnetic fields. These measured fields are then fed into the gradiometer with coefficients roughly equal to (−1) (inversion) to compensate for the imbalances in the x, y, and z direction.

Abstract: A logging while drilling (LWD) and measuring while drilling (MWD) method and device are disclosed for reducing the sensitivity of NMR measurements to tool motions. The invention is based on NMR relaxation measurements determining longitudinal relaxation times T1 instead of the standard T2 measurements, and involves saturating a relatively wide sensitive region of the formation and processing NMR echo signals which originate approximately from the center of the sensitive region. In another aspect, the invention uses novel pulse sequences and processing algorithms to reduce the time for the relaxation measurement and to provide real-time transfer of data uphole.

Abstract: A magnetic resonance apparatus has a gradient coil that is connected to an electrical conductor arrangement for electrical supply, the conductor arrangement having an inner conductor and an outer conductor that coaxially surrounds the inner conductor and a cooling channel for transmission of a coolant that is arranged between the inner and outer conductors.

Abstract: A method for influencing the homogeneous static magnetic field B0 in the direction of a z axis in an NMR apparatus with disturbances caused by superconducting components of RF coils for receiving NMR signals in a sample in a measuring volume of the NMR apparatus, wherein the superconducting components of the RF coils extend past the RF active region of the sample in the z direction, wherein the disturbances concern the z component of the B0 field in the RF active region of the sample, is characterized in that the superconducting components of the RF coils are exposed to an additional magnetic field which is sufficiently strong that, in the course of application, all superconducting structures disposed in the vicinity of the RF active region of the sample in the superconducting components of the RF coils are maximally magnetized and thereby their magnetization transverse to B0 along the z axis assumes a value which is substantially constant and different from zero.

Abstract: Systems and methods for downhole communication and measurement utilizing an improved metallic tubular having an elongated body with tubular walls and a central bore adapted to receive a run-in tool. The tubular including slotted stations to provide through-tubular signal transmission and/or reception. Hydraulic isolation between the interior and exterior of the tubular is provided by pressure barrier means at the slotted stations. Sensors and/or sources are mounted on the run-in tool, which is adapted for transmission through a drill string to engage within the tubular in alignment with the slotted stations. A run-in tool configuration includes a modulator for real-time wireless communication with the surface and/or remote downhole tools. A tubular and run-in tool configuration also includes inductive couplers for wireless signal data transfer. A method for measuring a formation characteristic utilizing a run-in tool adapted with an interchangeable end segment for multi-mode downhole transport.

Abstract: Driver circuit (1) for actuating an electrical device via a control line (3) and for diagnosing the state of the control line (3) and/or of the actuated device, having a test circuit (Q1-Q6, R1-R6), connected to the control line (3), for measuring the electrical output current flowing via the control line (3), and an evaluation unit (5-8), connected to the test circuit, for generating a diagnostic signal (DIAG) on the basis of the measured output current, the test circuit having at least one current mirror circuit (Q1, Q2; Q4-Q5).

Abstract: A circuit configuration and a method for determining a current drawn from a mains by a converter through a dc voltage intermediate circuit, replaces a required pulse-resistant input current measuring resistor with a conductor track of the circuit configuration itself. Since the input current drawn from the mains by the dc voltage intermediate circuit is on average equal to the output current delivered to the converter, the present resistance of the conductor track is given by the resistance of the measuring resistor downstream of the dc voltage intermediate circuit, weighted with the quotient of the input and output voltage drops. In that way, the mains current and therewith the power factor can be influenced by way of a current limiter without requiring an expensive pulse-resistant special resistor for mains current measurement.

Abstract: The integrity, connection and location of cable wire termination extending between two different points is checked for shorts between wires and open wires. The actual remote termination plug configuration can be mapped from testing end to determine remote plug wiring. The actual location of the remote terminated end is identified either by a visual indicator, a electronically recorded message made by operator at time of cable termination, or both.

Abstract: A circuit for, and method of, measuring an extinction ratio of a laser diode and a laser diode transmitter incorporating the circuit or the method. In one embodiment, the circuit includes: (1) an RF power detector, optically couplable to an output of the laser diode, for producing a varying voltage that is a function of an AC portion of modulated power generated by the laser diode and (2) an error signal generator, coupled to the power detector, for integrating the varying voltage over time to yield an integrated DC voltage that is a function of the extinction ratio.

Abstract: A tester routine is proved that evaluates all test pins, on all devices under test, t the same time and only if a fail does any evaluation have to be made. In the case of a failing pin that device is retested until passed or if not passed after a specified time considered a fail.

Abstract: A housing holder is provided with detectors to be inserted into communication grooves of a connector. The detectors are electrically connected through a lead wire to a test device. The test device is also connected to an adapter electrically connected to a rear end of a probe on each terminal. During a continuity test, incomplete insertion or dropout of a terminal, and a short circuit between terminals are detected by comparing a circuitry formed by a contact of each terminal with the detector and probe with a circuitry stored in the memory of the test device beforehand.

Abstract: PICA probe system methods and apparatus are described, including methods and apparatus for calibrating an event timer having a coarse measurement capability in which time intervals defined by clock boundaries are counted and a fine measurement capability in which time between boundaries is interpolated using a voltage ramp.

Abstract: The method of detecting foreign bodies in continuous mass streams of fibrous material, strand-like material or material similar to bulk goods with the aid of microwaves, in which the mass flow is led through the field of a microwave resonator and in which the change (A) in the resonant frequency, effected by the material, and the change (B) in the width of the resonance curve of the microwave resonator is determined, is distinguished in that the ratio (B/A) of the changes is evaluated and compared with corresponding averages, and the presence of a foreign body is reported when the ratio differs from the averages by more than a predefined value.

Abstract: A non-contact capacitive displacement measurement gage that provides high accuracy displacement measurements of well-connected targets and poorly-connected targets. The capacitive displacement measurement gage includes a capacitive probe, first and second amplifiers, and a signal generator. The capacitive probe includes a sensor electrode, a guard electrode, and a compensating electrode. The signal generator provides a predetermined voltage signal directly to the sensor electrode, to the guard electrode through the first amplifier having unity gain, and to the compensating electrode through the second amplifier having a predetermined transfer function. The second amplifier assures that substantially zero current is driven into the target element by the probe during gage operation, thereby allowing highly accurate displacement measurements of target elements having unknown or poorly controlled impedance.

Abstract: A probe assembly for use in monitoring fluid conditions in real time in a transducer utilizing impedance spectroscopy and having two closely spaced tubular concentric electrodes. The electrodes have a surface area of about 8.1 to 10.8 cm2 spaced in the range of about 0.1 to 0.55 mm. In one embodiment a concentric outer tubular Faraday shield is employed for monitoring fluid in a non-metallic vessel. The probe assembly is particularly suitable for monitoring hydraulic fluid including automatic transmission fluid and mineral based engine oil for diesel and gasoline engines.

Abstract: Apparatus and methods for testing conductive bumps or target test points on integrated circuits comprising a multiplicity of probes extending through a support substrate. At least one of the multiplicity of probe locations including a second electrically isolated probe such that the test point is in contact with two probes. One of the two probes providing a voltage to the test point and the second probe sensing the voltage so as to provide a Kelvin connection.

Abstract: A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A part of one of the conductive particles protrudes from the surface of the insulating substrate.

Abstract: An interposer including a fence that receives and aligns a semiconductor device, such as a flip-chip type semiconductor device, with a substrate. The fence may include edges that are configured to progressively align a semiconductor device with the substrate. The fence may also include one or more laterally recessed regions to facilitate rough alignment of a semiconductor device with the substrate. Methods for fabricating the fence include the use of stereolithographic and molding processes. When stereolithography is used to fabricate the fence, a machine vision system that includes at least one camera operably associated with a computer may be used to control a stereolithography apparatus and facilitates recognition of the position and orientation of substrates on and around which material is to be applied in one or more layers to form the fence. As a result, the substrates need not be precisely mechanically aligned.

Abstract: A semiconductor package test board for conveniently testing a fine ball pitch ball grid array package is provided. The provided semiconductor package test board includes a socket contact unit formed of a plurality of layers, to which a socket having the semiconductor package is connected, wherein the pitch between holes to which pins of the socket are connected increases from the upper surface to the lower surface in the socket contact unit. The holes in the socket contact unit are inclined toward the edges of the socket contact unit, and the angle of inclination of the holes increases from the center of the socket contact unit to the edges of the socket contact unit. Therefore, the holes are formed such that the ball pitch increases from the top layer to the bottom layer. As a result, the socket having the semiconductor package can be directly mounted on the test board without additionally mounting the sub test board (the socket board).

Abstract: The invention relates to an integrated circuit testing device.

Abstract: Flip-chip semiconductor assemblies, each including integrated circuit (IC) dice and an associated substrate, are electrically tested before encapsulation using an in-line or in-situ test socket or probes at a die-attach station. Those assemblies using “wet” quick-cure epoxies for die-attachment may be tested prior to the epoxy being cured by pressing the integrated circuit (IC) dice against interconnection points on the substrate for electrical connection, while those assemblies using “dry” epoxies may be cured prior to testing. In either case, any failures in the dice or in the interconnections between the dice and the substrates can be easily fixed, and the need for the use of known-good-die (KGD) rework procedures during repair is eliminated.

Abstract: A vertical probe card for testing electronic devices includes a multi-layer ceramic substrate mounted on a printed circuit board. The multi-layer ceramic substrate provides a plurality of vertical probes arranged in a planar array and formed on the surface of the multi-layer ceramic substrate by micro-fabrication technology. The method of using the vertical probe card includes disposing a device to be tested under the card, aligning the card's probes with the I/O terminals of the device, and contacting the device with the card's ceramic substrate so that all of the contact portions of the I/O terminals are contacted and deformed by the probes. The relative positions of the electronic device and the apparatus are maintained while Automatic Test Equipment tests the device.

Abstract: An apparatus for the parallel and independent testing of a plurality of semiconductor devices disposed on a wafer, in which the semiconductor devices are in each case connected to a common voltage supply unit through a controllable isolating apparatus, a voltage-regulating unit, and a current-limiting unit, and to a method for operating such an apparatus.