Abstract: A charging device for a power storage device includes a current control device configured to selectively enable and disable current from being delivered to the power storage device. The charging device also includes an actuator that moves at least a first portion of the charging device from a first position to a second position, and a controller coupled to the actuator and the current control device. The controller determines whether a predetermined actuation condition is met, activates the actuator to move the at least a first portion of the charging device to the second position upon the determination that the predetermined actuation condition is met, and controls the current control device to enable current to be delivered when the at least a first portion of the charging device is in the second position.

Abstract: A light vehicle is provided with a drive train that is powered by an electric motor. The electric motor receives power from a battery and may also receive power from an onboard generator. The onboard generator is a rapid charge generator that provides a direct current (DC) signal to provide a rapid charge to the battery while the light vehicle is either stationary or moving. The light vehicle may also be equipped with a vehicle management system that controls the charge and discharge of the battery. The vehicle management system may also monitor and control the operation of the on-board rapid charge generator and the electric motor.

Abstract: Provided is a vehicle charging device (170) that uses a power source (101) outside of a vehicle (160) to charge a battery (115) installed in the vehicle (160). A charger (114) charges the battery (115). A voltage measurement unit (111) measures the input voltage corresponding to the input current in the charger (114). A current measurement unit (112) measures the input current (Ic) in the charger (114). A control unit (113) changes the input currents (Ic) of the charger (114) into a plurality of values, and controls the input current (Ic) when the input voltage (Vc) has changed, according to the corresponding relationship between the input currents (Ic), when each has been changed, and the measured input voltages (Vc).

Abstract: The invention relates to an electrical charging system for energy accumulators or railway vehicles, comprising position-finding means (A1, A2, A3, A4) of a vehicle (1), at least one electrical energy capturing element (2), identification and positioning means (R1, R2, R3, R4, R5, R6) for identifying and positioning the vehicle (1), and at least one electrical changing zone (Z1, Z2, Z3, Z4), such that by means of associating the identification and positioning means (R1, R2, R3, R4, R5, R6) with respective position-finding means (A1, A2, A3, A4), the presence and configuration of the vehicle (1) is determined, and an area covered by said vehicle (1) corresponding with the electrical charging zones (Z1, Z2, Z3,Z4) to be electrified is defined.

Abstract: Excess current is prevented from flowing through an electric storage cell. an inductor having an end electrically connected to a connection point between an end of the first electric storage cell and an end of the second electric storage cell; a first switching device electrically connected between another end of the inductor and another end of the first electric storage cell; a second switching device electrically connected between the other end of the inductor and another end of the second electric storage cell; and a current restricting device connected in series with the inductor, the current restricting device restricting a current flowing through the inductor once a magnitude of the current flowing through the inductor has exceeded a predetermined value are provided.

Abstract: An electrical storage system includes: a plurality of electrical storage portions that are connected parallel to each other; a measurement portion that measures the full charge capacity of each of the electrical storage portions while switching an electrical storage portion that is a measurement target among the electrical storage portions; and a charge and discharge control portion that performs charge and discharge control on the electrical storage portions. The charge and discharge control portion makes other electrical storage portion other than the measurement target perform charge or discharge in a period of time during which the measurement portion measures the full charge capacity of the electrical storage portion that is the measurement target.

Abstract: A battery adapter, the battery adapter comprising a body having a first portion and a second portion, wherein the first portion is configured so as to mechanically and electrically connect to an electrical device, and the second portion is configured so as to mechanically and electrically connect to a battery, wherein the electrical device and the battery are characterized by different form-fit factors; wherein the first portion is electrically connected to the second portion so that a battery connected to the second portion can power an electrical device connected to the first portion.

Abstract: Provided is an information processing device capable of easily determining the number of times of charge/discharge of each of a plurality of secondary battery packs, the information processing device including a charge/discharge execution unit (21, 22, 23) having the following configuration.

Abstract: Methods and apparatus for charging a battery in an electronic device In one exemplary method for charging the battery in the electronic device includes detecting a charging input from a plurality of external devices, and when detecting the charging input, charging the battery with power supplied from the external devices using a plurality of charging modules.

Abstract: A method for managing charging of a rechargeable battery including at least one module including at least one electrochemical cell, the method including estimating a heat flow produced in the at least one module using an observer estimating overall internal resistance of the electrochemical cells of the module.

Abstract: The present invention relates to an apparatus and method for charging a lithium battery.

Abstract: The present disclosure describes an apparatus and method for estimating state of health (SOH) of a battery. The apparatus for estimating state of health of a battery includes a sensing unit for measuring a battery voltage and current within a predetermined charging voltage range; a memory unit storing the battery voltage and current values measured by the sensing unit and SOH-based ampere counting values, obtained by an ampere counting experiment of a battery whose actual degradation degree is known; and a control unit for calculating an ampere counting value by counting the measured current values stored in the memory unit within the charging voltage range, and estimating a SOH value by mapping the SOH value corresponding to the calculated ampere counting value from the SOH-based ampere counting values stored in the memory unit.

Abstract: An apparatus comprising a capacitor circuit, a control circuit, and a resistor circuit. The capacitor circuit may be configured to (i) be charged through an input terminal and (ii) store a charge sufficient to run a device on an output terminal. The control circuit may be configured to (i) charge the capacitor through the input terminal, (ii) couple the input terminal to a voltage source, and (iii) discharge the capacitor circuit when the output terminal is not connected to the device drive.

Abstract: An integrated drive generator includes a housing having generator. Center and input housing portions are secured to one another. The center housing portion is sealed relative to the generator input housing portion with seal plates. A hydraulic unit is mounted to the center housing portion. The center housing portion includes first and second parallel surfaces. A machined surface is parallel to and recessed into one of the first and second surfaces in an area of the hydraulic unit. A method of assembling an integrated drive generator includes the steps of providing a bore in a center housing portion, pressing a bearing liner into the bore, with a portion of the bearing liner extending proud of a surface of the center plate, and machining the surface around and adjacent to the bearing liner to provide a machined surface parallel to the surface.

Abstract: An integrated drive generator includes a pump plate having first and second parallel faces defining a first thickness. A passage extends between the first and second faces through the pump plate. Webbing is provided in the passage having a second thickness less than the first thickness. The webbing provides a first volume and the passage provides a second volume. A ratio of the second volume to the first volume is 20.8.

Abstract: Three-phase TSCs are delta-connected to three-phase AC buses. Each TSC includes a reactor, a capacitor, and a thyristor switch that are electrically connected in series. The thyristor switches of the three phases are arranged so that the terminal-to-terminal distance between respective thyristor switches of respective phases are not uniform. The three-phase TSCs are configured so that the TSCs of two of the three phases having a shortest terminal-to-terminal distance therebetween are opposite to each other in terms of connection order in which the thyristor switch and the capacitor are electrically connected along a loop path made up of the delta-connected TSCs.

Abstract: An adjustable shunt regulator circuit has two current paths in parallel, with each current path having a bipolar transistor therein with the bases of the bipolar transistors of the two current paths connected in common. One of the current paths has a high impedance node. A MOS transistor has a gate connected to the high impedance node, and a source and a drain. A resistor divide circuit is connected in parallel to the source and drain of the MOS transistor and provides the output of the regulator circuit. The resistor divide circuit has a first resistor connected in series with a second resistor at a first node. A feedback connects the first node to the bases of the bipolar transistors connected in common of the two current paths.

Abstract: A main reference value setting unit generates a voltage reference value DREF—V which represents a target level of a power supply voltage VDD. A digital calculation unit generates a main control value DOUT by digital calculation such that a digital voltage measurement value DM—V which represents the voltage level of the current power supply voltage VDD matches the voltage reference value DREF—V. A main D/A converter converts the main control value DOUT into an analog power supply signal SPS, and supplies the analog power supply signal SPS thus generated to a power supply terminal of a DUT via a power supply line. An auxiliary current source supplies an auxiliary current ISUB to the power supply terminal of the DUT via a sub-path that differs from the power supply line.

Abstract: Embodiments of systems, methods and apparatuses of a switching voltage regulator are disclosed. One switching voltage regulator includes a series switch element, a shunt switch element, a PWM controller, and a mode controller. The PWM controller includes an error amplifier and a switching controller. The error amplifier generates an error signal based on a difference between a reference voltage and an output voltage. Further, the switching controller is operative to generate switch element control voltages based on the error signal, for controlling opening and closing of the series switch element and the shunt switch element, wherein the opening and closing of the series switch element and the shunt switch element generates a switching voltage. The mode controller is operative adjust a gain of the error amplifier over a selected range of frequencies based on a parameter indicative of a likelihood of oscillations in the output voltage.

Abstract: A voltage regulator may be provided that includes a first circuit to receive at least one feedback signal from a buck converter and to provide at least one driving signal to the buck converter to provide an output voltage based on the at least one feedback signal, and a second circuit to control a super-capacitor to provide the output voltage when the first circuit is not using the buck converter to provide the output voltage.

Abstract: System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal.

Abstract: A circuit may include an input node configured to receive a signal and an output node configured to be coupled to a load. The circuit may also include a first circuit coupled between the input node and the output node. The first circuit may be configured to receive the signal and to drive the signal on the output node at a first voltage. The circuit may also include an active device coupled to the output node and a second circuit coupled to the active device and the input node. The second circuit may be configured to receive the signal and to drive the signal to the active device at a second voltage. The circuit may also include a tap circuit configured to selectively apply a modified version of the signal to the signal driven by the second circuit before the signal driven by the second circuit reaches the active device.

Abstract: In various embodiments a circuit is provided including: an input terminal to receive an input voltage; a switch, a first controlled input of which being coupled to the input terminal; an inductor, a first terminal of which may be coupled in series to a second controlled input of the switch; a freewheeling diode, wherein a first diode terminal may be coupled with the second controlled input of the switch and with the first terminal of the inductor, and wherein a second diode terminal may be coupled with a reference potential; a capacitor coupled with a second terminal of the inductor; and a controller configured to operate the switch and the inductor in continuous current mode to charge the capacitor.

Abstract: A charge pump regulator circuit includes a voltage controlled oscillator and a plurality of charge pumps. The voltage controlled oscillator has a plurality of inverter stages connected in series in a ring. A plurality of oscillating signals is generated from outputs of the inverter stages. Each oscillating signal has a frequency or amplitude or both that are variable dependent on a variable drive voltage. Each oscillating signal is phase shifted from a preceding oscillating signal. Each charge pump is connected to a corresponding one of the inverter stages to receive the oscillating signal produced by that inverter stage. Each charge pump outputs a voltage and current. The output of each charge pump is phase shifted from the outputs of other charge pumps. A combination of the currents thus produced is provided at about a voltage level to the load.

Abstract: A charge pump regulator circuit includes an oscillator and one or more charge pumps. One or more oscillating signals are generated by the oscillator. Each oscillating signal has a frequency or amplitude or both that are variable dependent on a variable drive signal. For some embodiments having multiple oscillating signals, each oscillating signal is phase shifted from a preceding oscillating signal. For some embodiments having multiple charge pumps, each charge pump is connected to receive a corresponding one of the oscillating signals. Each charge pump outputs a voltage and current. For some embodiments having multiple charge pumps, the output of each charge pump is phase shifted from the outputs of other charge pumps. A combination of the currents thus produced is provided at about a voltage level to a load.

Abstract: A system, method, and computer program product are provided for single wire voltage control of a voltage controller. A voltage controller is included and is in communication with a device, A single wire is connected between the voltage controller and the device for use by the device in controlling an output voltage of the voltage controller.

Abstract: A circuit may include an input node configured to receive a signal and an output node configured to be coupled to a load. The circuit may also include a first circuit coupled between the input node and the output node. The first circuit may be configured to receive the signal and to drive the signal on the output node at a first voltage. The circuit may also include an active device coupled to the output node and a second circuit coupled to the active device and the input node. The second circuit may be configured to receive the signal and to drive the signal to the active device at a second voltage that is approximately equal to the first voltage.

Abstract: A differential current source includes two source transistors, sources of which are respectively connected to a power source, and a mixer circuit having a first terminal, a second terminal, a third terminal and a fourth terminal, the first terminal and the second terminal being respectively connected to drains of the two source transistors, and the third terminal and the fourth terminal being respectively output terminals, wherein the mixer circuit changes a connection state in accordance with a local signal between a first connection state where the first terminal and the third terminal are connected and also the second terminal and the fourth terminal are connected, and a second connection state where the first terminal and the fourth terminal are connected and also the second terminal and the third terminal are connected.

Abstract: A system for testing a real time clock (RTC) includes a frequency-dividing circuit configured to generate a frequency-dividing clock pulse signal equal to a rated frequency of a clock pulse signal generated by the RTC, and a control circuit including a processing chip. The processing chip includes a timer and a counter. The timer is used to record a test time of the RTC, the counter is used to record a pulse difference between the clock pulse signal and the frequency-dividing clock pulse signal during the test time. If a pulse rate difference between the counter and the timer is greater than a standard clock pulse difference, the RTC is unqualified, and if the pulse rate difference between the counter and the timer is less than the standard clock pulse difference, the RTC is qualified.

Abstract: The disclosure describes a method for operating a speed sensing device including a magnetically operating speed encoder that is located on a rotatably mounted shaft and a fixed sensor configured to interact with the speed encoder. The speed encoder includes at least one encoder element configured to move past the fixed sensor upon a revolution of the shaft and thereby produces an electrical pulse. The sensing of the electrical pulses produced determines the speed of the shaft. For at least a plurality of successive electrical pulses, the respective time of a signal period for at least two successive electrical pulses is measured and stored, and the respective time of at least one selected test period for the signal periods is compared with (i) the time of the previous signal period, and (ii) with the time of the subsequent signal period in order to detect absent and/or incorrect electrical pulses.

Abstract: An apparatus is disclosed for monitoring brushes, such as slipring or commutator brushes, on electrical machines. At least one electronic sensor is configured to be arranged in or on a brush apparatus of an electrical machine. This sensor is measuring the brush position at high speed and high resolution, and characterized in that it receives a brush position signal from the brushes in a contact-less fashion. Data is collected by a central unit which sends the data to a server computer. Client computers can consult data, and real time monitor the status of the machine.

Abstract: The invention concerns a magnetic transducer comprising a magnetic field sensor and an electronic circuit. The electronic circuit comprises at least one current source, a transformer, a fully differential preamplifier coupled to the transformer, a phase sensitive detector coupled to the preamplifier and a logic block configured to operate the magnetic field sensor(s) to provide an AC output voltage. The magnetic field sensor(s) is preferably either a Hall element or an AMR sensor or a fluxgate sensor. The invention further concerns a current transducer for measuring a current flowing through a cable, comprising at least one such magnetic transducer and a head with one or more ferromagnetic cores optimized to reduce the effects of external magnetic fields.

Abstract: Magnetic field sensors and associated techniques use a Hall effect element in a chopping arrangement in combination with a feedback path configured to reduce undesirable spectral components generated by the chopping.

Abstract: A magnetic sensor includes first and second MR elements, and an electrode electrically connecting the first and second MR elements to each other. The electrode includes a first portion having a first surface, a second portion having a second surface, and a coupling portion coupling the first and second portions to each other. The first surface is in contact with an end face of the first MR element. The second surface is in contact with an end face of the second MR element. Each of the first and second surfaces has a three-hold or higher rotationally symmetric shape. The diameter of a first inscribed circle inscribed in the outer edge of the first surface and the diameter of the second inscribed circle inscribed in the outer edge of the second surface are greater than the width of the coupling portion.

Abstract: The invention concerns a current transducer for measuring a current flowing through a cable, comprising at least one magnetic field sensor and an electronic circuit. The current transducer comprises a head with a ferromagnetic core optimized to reduce the effects of external magnetic fields. The invention further concerns a magnetic transducer comprising a magnetic field sensor and an electronic circuit. The electronic circuit comprises at least one current source, a transformer, a fully differential preamplifier coupled to the transformer, a phase sensitive detector coupled to the preamplifier and a logic block configured to operate the magnetic field sensor(s) to provide an AC output voltage. The magnetic field sensor(s) is preferably either a Hall element or an AMR sensor or a flux-gate sensor.

Abstract: A control system for controlling a synchronous motor having a magnet in a rotor includes an inverter configured to output an AC current for driving the motor, a gate command generating unit configured to generate a gate command for controlling the inverter, a current detecting unit configured to detect the AC current output by the inverter, a magnetic pole position estimating unit configured to estimate a magnetic pole position based on the AC current detected by the current detecting unit and generate an estimation signal, a current command generating unit configured to generate a current command and an estimation command for controlling the inverter to output an AC current with a predetermined level, and a magnetic polarity determination unit configured to determine the polarity of the magnet based on the estimation signal.

Abstract: Nuclear Magnetic Resonance (NMR) measurement apparatus, NMR sensors, NMR measurement methods are disclosed to determine NMR properties of engineered flow management structures, and to estimate engineering properties using determined NMR properties. Example engineered flow management structures include engineered water storage, water management, water production, water sampling structures, and/or structures that serve as conduits or barriers to water movement. Technologies disclosed herein are also applicable to measuring properties relating to other fluid and/or gas flow in engineered flow management structures.

Abstract: A gas cell semiconductor chip assembly includes a gas cell including an alkali gas stored therein and a first semiconductor chip including a first resistive heating loop at a location corresponding to the gas cell to heat the gas cell and a second resistive heating loop around an outer perimeter of the first resistive heating loop. The second resistive heating loop is configured to cancel a magnetic field of the first resistive heating loop based on a current flowing through the first and second resistive heating loops.

Abstract: A system and method for metabolic MR imaging of a hyperpolarized agent includes exciting a single metabolic species of a hyperpolarized agent injected into a subject of interest. MR signals are acquired from the excited single metabolic species and an image is reconstructed from the acquired MR signals.

Abstract: A magnetic resonance imaging system (402, 500) with magnetic field gradient coils (516) and a gradient coil power supply (320, 424, 518). The magnetic resonance imaging system further comprises a processor (540) and a chiller (308, 526) for providing the coolant to the gradient coils. The magnetic resonance imaging system further comprises a memory (546) for storing machine executable instructions (580, 582, 584, 586, 588, 590, 592). The instructions cause the processor to receive (100, 200) a pulse sequence (550), to generate (102, 202) the chiller control signals using the pulse sequence and a chiller thermal model (582) of the gradient coils and the coolant reservoir, and to send (104, 206) the chiller control signals to the chiller. The chiller control signals cause the chiller to halt chilling at least a portion of the time when the gradient coil power supply supplies current to the magnetic field gradient coils.

Abstract: In order to avoid the duplication of the period and cost required for magnetic field adjustment, minimize the magnetic field adjustment period in a final installation site, and achieve highly efficient magnetic field adjustment of a magnet, a method for adjusting the homogeneity of a static magnetic field generated in a measurement space by a static magnetic field generation means by disposing magnetic field correction means for generating a corrected magnetic field with respect to the static magnetic field comprises: a step for measuring the static magnetic field generated by the static magnetic field generation means; a step for expanding the spatial distribution of the measured static magnetic field in a series; a first magnetic field adjustment step for correcting a high-order term irregular magnetic field components expanded in a series; and a second step for adjusting a low-order irregular magnetic field component, the second step being performed after the first adjustment step.

Abstract: Various embodiments relate to a method for determining distortion-reduced magnetic resonance data in a subarea of a magnetic resonance system located along a radial direction of the magnetic resonance system at the edge of a field of view of the magnetic resonance system. The method includes positioning the object to be examined at a first and a second position along an axial direction of the magnetic resonance system and acquiring first magnetic resonance data in the subarea at the first position and acquiring second magnetic resonance data in the same subarea at the second position. The method also includes determining distortion-reduced magnetic resonance data based on the first and second magnetic resonance data.

Abstract: A method is disclosed for determining distortion information describing geometric distortion during the recording of magnetic resonance image data with a recording sequence, wherein a magnetic resonance image data set of at least one calibration phantom with a first marker structure having a defined geometry which is visible in magnetic resonance imaging is recorded. The at least one calibration phantom further includes a second marker structure having a defined geometry which is visible in computed tomography imaging. A computed tomography image data set of the calibration phantom is recorded and the distortion information is determined by a comparison of the magnetic resonance image data set with the computed tomography image data set, in particular at least partially automatically.

Abstract: A labeling area determining apparatus is provided. The labeling area determining apparatus includes a detecting device configured to detect a tilt of a head relative to a body axial direction of a subject to be imaged by an arterial spin labeling method, and a determining device configured to determine a tilt of a labeling area of spins relative to the body axial direction of the subject, based on the tilt of the head detected by the detecting device.

Abstract: The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient placed in an examination volume of a MR device (1), the method comprising the steps of: subjecting the portion of the body (10) to a first imaging sequence for acquiring a first signal data set (21); subjecting the portion of the body (10) to a second imaging sequence for acquiring a second signal data set (23), wherein the imaging parameters of the second imaging sequence differ from the imaging parameters of the first imaging sequence; reconstructing a MR image from the second signal data set (23) by means of regularization using the first signal data set (21) as prior information. Moreover, the invention relates to a MR device (1) and to a computer program for a MR device (1).

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes a data acquiring unit and an image generating unit. The data acquiring unit is configured to acquire a signal train of magnetic resonance signals from an object by a spin echo method for applying a refocus pulse repeatedly following an excitation pulse with changing a flip angle of the refocus pulse. The image generating unit is configured to generate frames of image data having mutually different contrasts, based on mutually different portions of the signal train of the magnetic resonance signals.

Abstract: Technologies applicable to SNMR pulse sequencing are disclosed, including SNMR acquisition apparatus and methods, SNMR processing apparatus and methods, and combinations thereof. SNMR acquisition may include transmitting SNMR pulse sequences according to any of a variety of techniques. SNMR processing may include combining SNMR from a plurality of pulse sequences.

Abstract: A system and method involve performing electron paramagnetic resonance on an object under study. The system comprises a first field generator adapted for generating an orienting magnetic field for orienting the magnetization of the object under study and a second field generator adapted for generating RF excitation waves at a frequency to generate electron paramagnetic resonance (EPR) in the object under test. The system also comprises a detection unit adapted for detecting the EPR signals emitted by the object under test and a control unit adapted for controlling the relative orientation of the orienting magnetic field induced by the first field generator with respect to the detection unit. The system furthermore comprises a processing unit programmed for combining detected EPR signals obtained using different relative orientations of the orienting magnetic field with respect to the detection unit.

Abstract: A circuit arrangement including a plurality of amplifier stages to amplify an electrical RF signal for a magnetic resonance tomography device is provided. The plurality of amplifier stages is arranged on at least one circuit board. A circuit board of the at least one circuit board surrounds a cooling pipe.

Abstract: A test machine and a test method for a Light Emitting Diode (LED) backlight driver and a manufacturing method for a monitor power board are disclosed. A switch-controlled LED-light-bar load is coupled to an LED backlight driver on a monitor power board. The switch-controlled LED-light-bar load includes a plurality of light bars and a plurality of switches. Each light bar has a plurality of the LEDs which are connected in series. Each switch is connected in parallel to a portion of the LEDs of one light bar such that an effective amount of the LEDs of each light bar is adjustable. The switches are controlled according to a monitor specification that the monitor power board is adapted to.