| 14th week of 2012 patent applcation highlights part 15 |
| Patent application number | Title | Published |
|---|
| 20120081041 | TRAVELING WAVE LINEAR ACCELERATOR BASED X-RAY SOURCE USING PULSE WIDTH TO MODULATE PULSE-TO-PULSE DOSAGE - Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the width of the beam pulse, i.e., pulse width. | 2012-04-05 |
| 20120081042 | TRAVELING WAVE LINEAR ACCELERATOR BASED X-RAY SOURCE USING CURRENT TO MODULATE PULSE-TO-PULSE DOSAGE - Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the electron beam current applied to an electron gun. | 2012-04-05 |
| 20120081043 | CONTROL OF A LINEAR MOTOR - Disclosed is a linear electric motor having a fixed primary comprising a stator divided into a number of sections, including a translating secondary having an operative length longer than any two adjacent sections of the stator in the form of a reaction plate, and a connecting means for connecting only those sections of the stator that are at least partially covered by the reaction plate. The position of the reaction plate relative to the stator is determined by monitoring current in the active representative sections. Power is supplied to each stator section individually, with power supplied in a modulated manner to end active stator sections only partially covered by the reaction plate. A measurement of the current to the active representative section is used to control output voltage to all energized stator sections and is used to determine the change in position of the reaction plate. | 2012-04-05 |
| 20120081044 | Electrical Power Tool for Operating with Alternating Current - The invention relates to an electrical power tool, particularly an electric hand power tool, for operating with alternating current, having an electric motor, and electronic control device, and an electrical power switch for actuating the electric motor, wherein the electronic control device comprises a bias voltage output and a detection input, connected to each other by means of a voltage divider comprising a summation point and to the side of the power switch facing the electric motor, and the control device is further designed such that the potential at the detection input is monitored after actuating the power switch and used for checking whether the power switch is conducting, and that it is actuated again if the power switch was not conducting or returned to the non-conducting state during the monitoring, and that said checking and any renewed actuation of the power switch is repeated within a half-wave of the alternating voltage. | 2012-04-05 |
| 20120081045 | CONTROL DEVICE FOR VOLTAGE CONVERSION DEVICE, VEHICLE INCORPORATING THE SAME, AND CONTROL METHOD FOR VOLTAGE CONVERSION DEVICE - In a voltage conversion device of a motor drive control device, switching-control is performed so as to enlarge an output allowable voltage range of the voltage conversion device restricted by a dead time in a switching operation for an upper arm and a lower arm performing power conversion by a switching operation. Accordingly, restriction in the output voltage from the voltage conversion device, caused by the dead time, can be suppressed. | 2012-04-05 |
| 20120081046 | CONTROL OF AN ELECTRICAL MACHINE - A method of controlling an electrical machine that includes selecting an edge of a rotor-position signal as a reference edge and commutating a phase winding of the electrical machine at times relative to the reference edge. The rotor-position signal has at least four edges per mechanical cycle, each of the edges being associated with a respective zero-crossing in back EMF or minimum in inductance of the phase winding. The angular position of at least one of the edges relative to its respective zero-crossing or minimum is different to that of the other edges. The reference edge is then selected from the edges such that the angular position of the reference edge relative to its respective zero-crossing or minimum is the same with each power on of the electrical machine. Additionally, a controller and control system that implement the method. | 2012-04-05 |
| 20120081047 | CONTROL DEVICE OF A DRIVING APPARATUS - A control device for a driving apparatus. The control device is configured with a device that controls the rotary electric machine via the inverter, a device that determines whether a disconnect condition of the main power supply is satisfied, and a device that obtains an estimated field amount that is an estimated value of the field flux supplied from the rotor to the stator. The control device is also configured with a device calculates an induced voltage that is induced in the coil, and a device that determines whether an overvoltage state in which the induced voltage exceeds a voltage resistance of the inverter exists. If it is determined that an overvoltage state exists when the disconnect condition is satisfied, connection with a main power supply is maintained until the overvoltage state is eliminated. The rotary electric machine is controlled by weakening the field flux to the coil. | 2012-04-05 |
| 20120081048 | MOTOR ABLE TO WORK SYNCHRONOUSLY AND AS INDUCTION MOTOR - The present invention relates to a motor that acts both as a synchronous motor and as an induction motor, and that comprises a stator ( | 2012-04-05 |
| 20120081049 | DRIVE CONTROL SIGNAL GENERATING CIRCUIT - PWM conversion is efficiently executed. An output control circuit comprises a flip-flop which reads crossing of a reference value by a rotational state signal from a motor, and generates a motor drive control signal according to a state of the flip-flop. A clock generator generates a clock which defines a time of reading data in the flip-flop of the output control circuit. A PWM conversion circuit PWM-converts the drive control signal using the clock as a PWM signal. | 2012-04-05 |
| 20120081050 | CONTROL OF AN ELECTRICAL MACHINE - A method of controlling an electrical machine that includes commutating a phase winding of the electrical machine at a time T_COM( | 2012-04-05 |
| 20120081051 | CONTROL DEVICE - A control device configured with an external input estimator that reduces a vibration component of a rotational speed of the power transfer system at a rotational speed of the rotary electric machine and estimates transfer system input torque on the basis of the rotational speed of the rotary electric machine, and that estimates external input torque by subtracting at least output torque of the rotary electric machine from the transfer system input torque. A low-vibration speed calculator calculates a low-vibration rotational speed on the basis of the external input torque and vehicle required torque. A rotational speed controller calculates feedback command torque that matches the rotational speed of the rotary electric machine with the low-vibration rotational speed. A torque command value calculator calculates an output torque command value on the basis of the vehicle required torque and the feedback command torque. | 2012-04-05 |
| 20120081052 | POWER SUPPLY CIRCUIT - A power supply circuit includes two half bridge circuits, a controller and two terminals for connecting a motor. The controller includes a signal input terminal, a phase inverter, a wiring board having four soldering pads, and two conductors. The four soldering pads are connected to the signal terminal, an output terminal of the phase inverter, control terminals of lower switches of the two half bridge circuits. Two ends of the first conductor are connected to the first and the fourth soldering pads and two ends of the second conductor are connected to the second and the third soldering pads. Alternatively, two ends of the first conductor are connected to the first and the third soldering pads and two ends of the second conductor are connected to the second and the fourth soldering pads. | 2012-04-05 |
| 20120081053 | MOTOR CONTROL METHOD AND DEVICE - A control device includes a drive controller that controls the driving of an electromagnetic coil, and a regeneration controller that controls the regeneration of power from the electromagnetic coil. The drive controller includes an excitation interval setting unit that sets excitation and non-excitation intervals such that voltage is applied to the electromagnetic coil during the excitation interval but is not applied during the non-excitation interval. The excitation and non-excitation intervals are symmetrical with centers that respectively correspond to the π/2 and π phase points of the induced voltage waveform. The regeneration controller includes a regeneration interval setting unit that sets regeneration and non-regeneration intervals such that power is regenerated from the electromagnetic coil during the regeneration interval but is not regenerated during the non-regeneration interval. The regeneration and non-regeneration intervals are symmetrical with centers that respectively correspond to the π/2 and π phase points of the induced voltage waveform. | 2012-04-05 |
| 20120081054 | CONTROL DEVICE OF A DRIVING APPARATUS - A control device for a driving apparatus configured with a rotary electric machine having a rotor with a permanent magnet and a stator having a coil. A field adjusting mechanism is configured to change a field flux supplied by the rotor, and an inverter is connected to the coil. A field command determining portion is configured to determine a field command value that serves as a target for the field flux that is adjusted by the field adjusting mechanism, based on at least a rotation speed of the rotor, with a field limiting value, that is set according to the rotation speed of the rotor within a range in which induced voltage that is induced in the coil will not exceed a voltage resistance of the inverter, as an upper limit. | 2012-04-05 |
| 20120081055 | STEERING CONTROL APPARATUS - Disclosed is a steering control apparatus having a structure by which it is possible to efficiently dissipate high heat that may be generated, simplify a manufacturing process, and reduce manufacturing costs. | 2012-04-05 |
| 20120081056 | APPARATUS AND METHOD FOR CONTROLLING SPEED OF FAN IN COMPUTER - An apparatus and method controls a speed of a fan in a computer. The apparatus includes a signal generator, a signal buffer, a signal switch, and an integrated baseboard management controller (IBMC). The IBMC includes a general purpose input output (GIPO) pin and a signal output port. The IBMC determines whether the IBMC operates normally by detecting a voltage status of the GIPO pin. The signal generator generates a first pulse width modulation (PWM) signal according to a system temperature of the computer when the IBMC does not operate normally. The IBMC generates a second PWM signal to according to the system temperature of the computer when the IBMC operates normally. The signal switch controls the speed of the fan according to the first PWM signal or the second PWM signal. | 2012-04-05 |
| 20120081057 | METHOD FOR OPERATING AN ACTUATOR - A method for operating an electrically driven actuator having a power supply that has an energy storage unit ( | 2012-04-05 |
| 20120081058 | DC POWER FOR SGCT DEVICES USING A HIGH FREQUENCY CURRENT LOOP WITH MULTIPLE CURRENT TRANSFORMERS - Motor drives and switch driver power systems are presented in which high frequency AC current (I | 2012-04-05 |
| 20120081059 | ELECTRO-MECHANICAL DRIVE WITH EXTENDED CONSTANT POWER SPEED RANGE - Embodiments of the invention comprise a multi-input range box driven by multiple electric drives. Range shifting involves momentarily increasing the current through all but a given motor, to a level that will carry the entire load, comprising specified constant power. Simultaneously, torque of the given motor is reduced to zero. The given motor is then disconnected from supplying power, is synchronized to the input speed of the new speed range, and is then engaged for the new range. The above sequence is then repeated for each remaining motors, in turn. The motor current is re-equalized for all of the motors, after all the motors have been connected to provide power at the new range. Thus, there is no interruption in power flow during a range shift, and the motors are always used to deliver power, rather than to serve as a brake. | 2012-04-05 |
| 20120081060 | CONTROL APPARATUS FOR DRIVING APPARATUS - A control apparatus that controls a driving apparatus configured with a stator. A variable magnetic flux type rotating electrical machine has a first and second rotor, circumferential direction relative positions of which can be adjusted. A relative position adjustment mechanism adjusts the relative positions of the two rotors. A control command determination unit that determines, on the basis of a required torque and a rotation speed, an inter-rotor phase command indicating the relative positions for minimizing a system loss including at least an electrical loss, which includes a copper loss and an iron loss of the rotating electrical machine, and a mechanical loss of the relative position adjustment mechanism. A current command drives the rotating electrical machine. A control unit controls the rotating electrical machine on the basis of the current command and controls the relative position adjustment mechanism on the basis of the inter-rotor phase command. | 2012-04-05 |
| 20120081061 | ADAPTIVE HARMONIC REDUCTION APPARATUS AND METHODS - Power conversion systems with active front end converters for example motor drives and power generation systems for distributed energy sources are presented with adaptive harmonic minimization for grid-tie converters for minimized or reduced total harmonic distortion in the line current spectrum including the source harmonic current and the grid-tie converter injected current spectrum referred to the line side. | 2012-04-05 |
| 20120081062 | Motor Control Device - A motor control device includes: a motor control unit; and a signal output unit, the motor control unit includes: a first control unit configured to estimate a current upper limit value on the basis of the rotation speed of the motor and a current decrease caused by back electromotive force, the first control unit configured to determine a control input corresponding to the estimated current upper limit value, and a second control unit configured to determine a control input to be applied to the motor on the basis of an operation amount of the motor and a target value, of the operation amount to control, the motor, and in the early period of driving of the motor, the motor is controlled by the first control unit, and in the late period of driving of the motor, the motor is controlled by the second control unit. | 2012-04-05 |
| 20120081063 | Motor Control Device - A motor control device comprises: an acceleration upper limit estimating unit; a target acceleration setting unit; a motor control unit; and a deficit calculating unit, wherein the target acceleration setting unit corrects the target acceleration based on the acceleration profile by an amount corresponding to the acceleration deficit within a range in which the target acceleration does not exceed the acceleration upper limit on the basis of the acceleration deficit calculated by the deficit calculating unit to set the target acceleration at each time. | 2012-04-05 |
| 20120081064 | CONTROL OF AN ELECTRICAL MACHINE - A method of controlling an electrical machine that includes exciting a phase winding with a supply voltage, and freewheeling the phase winding when current in the phase winding exceeds a threshold. The threshold is then adjusted in response to changes in the supply voltage and/or the speed of the electrical machine. Additionally, a control system that implements the method and an electrical machine comprising the control system are described. | 2012-04-05 |
| 20120081065 | OVERCURRENT LIMITING FOR THE CLOSED-LOOP CONTROL OF CONVERTER-FED THREE-PHASE MACHINES - A method and a structure operate a three-phase machine, which is fed by a three-phase converter, using a stator flux regulator and either a slip frequency regulator or a torque regulator. A torque-forming fundamental-frequency current component of the stator current is limited by limiting a setpoint value that is supplied to the slip frequency regulator or to the torque regulator to a maximum slip frequency value maximum torque value. The flux-forming fundamental-frequency current component of the stator current is limited by limiting the speed at which a setpoint value supplied to the stator flux regulator changes to a maximum value. The maximum slip frequency value or maximum torque value is calculated on the basis of a prescribed maximum current value for a stator current fundamental-frequency magnitude of the stator current and on the basis of a filtered actual value of the flux-forming fundamental-frequency current component of the stator current. | 2012-04-05 |
| 20120081066 | THERMOELECTRIC POWER GENERATING EXHAUST SYSTEM - An exhaust system for generating power includes a conduit in communication with a first atmosphere having a first temperature and through which said first atmosphere can flow, the conduit having an inner surface exposed to said first atmosphere and an exterior surface exposed to a second atmosphere having a second temperature external to the conduit; a thermoelectric power generating assembly mounted to the exterior surface of the conduit, said power generating assembly responsive to a temperature difference between the first and second atmospheres for providing electrical power. | 2012-04-05 |
| 20120081067 | UNIVERSAL CHARGING CORD WITH AN ILLUMINATED SOCKET END - A universal charger with an illuminated socket end is disclosed. The illumination source may be internally or externally powered from either end. Exchangeable charging plugs and sockets power and charge all mobile devices including: 12V DC to one of thirteen AC outlets, a secondary illumination source, a splitter socket plug, a male or female charging plug, a powered communications charging plug or socket, etc. A multi-voltage regulator with a voltage indicator provides exact voltages for specific devices. One of thirteen AC to DC charging adapters allows the charger to be plugged into any AC outlet in the world. A magnetic clip allows the illuminated socket end to be clipped on a visor or placed in any location for hands-free aiming of the illumination source. A cable with removable plug and socket ends allows multiple length charger cords, plug tips, plug sockets, DC to AC outlets, AC to DC adapters, etc. | 2012-04-05 |
| 20120081068 | Method and Apparatus for Charging Batteries - A charge system is disclosed. A charge system includes a switching device and a controller. The switching device performs switching of a DC input voltage at a predetermined switching frequency to generate an output voltage, and the output voltage being utilized for charging said battery. The controller allows the switching device to operate at a first switching frequency immediately after starting of charge and at a second switching frequency when a frequency changing condition holds. The second switching frequency is higher than that of first switching frequency. | 2012-04-05 |
| 20120081069 | COMMUNICATION APPARATUS AND SIGNAL PROCESSING METHOD - A communication apparatus for a portable electronic device. The communication apparatus includes a charging module, a transceiver module and a signal repeating unit. The charging module provides a charging function in a wired or wireless manner to charge up the portable electronic device. The transceiver module receives signals from the portable electronic device and transmits enhanced signals to an air interface. The signal repeating unit receives the signals and enhances the signals to generate the enhanced signals. | 2012-04-05 |
| 20120081070 | SYSTEM AND METHOD FOR IDLE CHARGE OF HYBRID VEHICLE - A method for idle charging of a hybrid vehicle according to an exemplary embodiment of the present invention may include: detecting an SOC of a battery and entering times to an idle charge control state; changing an entering point and a releasing point of the idle charge control according to a number of entering times to the idle charge control state for a predetermined period; performing idle charging by forcibly starting an engine when the SOC of the battery reaches the entering point of the idle charge control; and stopping the engine when the SOC of the battery reaches the releasing point of the idle charge control state as the idle charge is performed. | 2012-04-05 |
| 20120081071 | POWER SUPPLY APPARATUS - In a power supply apparatus, a power source generates electric power at a predetermined source voltage. The first converter circuit converts the source voltage into a first voltage or a second voltage. The secondary battery is charged with electric power at the first voltage when the first converter circuit outputs electric power at the first voltage. The second converter circuit converts the first voltage of the electric power outputted from the first converter circuit or the secondary battery into the second voltage. The electric load device is supplied with electric power at the second voltage outputted from the second converter circuit. The direct power supply circuit directly supplies electric power at the second voltage outputted from the first converter circuit to the electric load device without passing through the second converter circuit when the first converter circuit outputs the electric power at the second voltage. | 2012-04-05 |
| 20120081072 | VEHICLE BATTERY CHARGER AND METHOD OF OPERATING SAME - A battery charger electrically connected with a power distribution circuit may select a charge rate to charge a vehicle battery in response to whether a load other than the battery charger is electrically connected with the power distribution circuit, and charge the vehicle battery at the selected charge rate. | 2012-04-05 |
| 20120081073 | ELECTRICAL CONNECTING DEVICE FOR HYBRID AND ELECTRIC VEHICLES AND ASSOCIATED METHOD FOR CHARGING - An electrical connecting device having an output connection, which is designed to be detachably connected to a charging connection of an accumulator device of a vehicle operated using current, the electrical connecting device also including a supply connection that is designed to be detachably connected to a network connection of an alternating current low-voltage interconnected network. The connecting device is characterized in that the electrical connecting device includes an alternating current/direct current converter, which is suitable for converting the alternating voltage of the supply connection to an electric DC voltage suitable for the accumulator device. A method is also described for charging an accumulator device of a vehicle operated by current using an electrical connecting device. | 2012-04-05 |
| 20120081074 | STATE OF CHARGE INDICATOR FOR A BATTERY CHARGER - A method is provided for indicating state of charge of a battery being charged by a charger. The method includes: supplying a charging current from a battery charger to a battery pack; determining voltage of battery cells residing in the battery pack; and illuminating a visual indicator on the battery charger to indicate state of charge of the battery pack, where brightness of the visual indicator correlates to the voltage of the battery cells in the battery pack. | 2012-04-05 |
| 20120081075 | BATTERY PACK CAPACITY LEARN ALGORITHM - A method that considers battery capacity for providing cell balancing for battery cells in a battery pack. The method includes providing a current state-of-charge for each battery cell in the battery pack for a current time frame and a previous state-of-charge for each battery cell in the battery pack from a previous time frame. The method also includes subtracting the current state-of-charge from the previous state-of-charge for each battery cell to generate a cell delta state-of-charge for each cell and providing an average cell delta state-of-charge of the cell delta state-of-charges for all of the cells. The method also includes dividing each cell delta state-of-charge by the average cell delta state-of-charge to provide a relative cell delta state-of-charge for each cell and dividing the current state-of-charge by the relative cell delta state-of-charge for that cell to generate a capacity adjustment state-of-charge that identifies the capacity of the cell. | 2012-04-05 |
| 20120081076 | Secondary Battery System for Detecting Distribution of Heat Generation - A secondary battery system capable of controlling charge/discharge of a secondary battery that includes a core winding: calculates a change quantity ΔTT indicating an extent of change in the temperature difference ΔT between the temperatures in the central area and in the outer circumferential area of the core winding represented by a difference between a temperature difference ΔT1 calculated at a start of use of the secondary battery and a temperature difference ΔT2 calculated after a predetermined length of time elapses following the start of use of the secondary battery; and executes detection of a heat generation distribution at the core winding based upon the change quantity ΔTT. | 2012-04-05 |
| 20120081077 | Rechargeable Battery System - A rechargeable battery system that controls charge/discharge of a lithium ion rechargeable battery, includes: an internal resistance detection unit that detects or estimates an internal resistance value indicating an internal resistance at the lithium ion rechargeable battery; and a discharge control unit that executes control so as to set a discharge suspension period while the lithium ion rechargeable battery is discharged if the internal resistance value detected via the internal resistance detection unit during discharge of the lithium ion rechargeable battery exceeds a first threshold value. | 2012-04-05 |
| 20120081078 | BATTERY CHARGE MANAGEMENT USING A SCHEDULING APPLICATION - According to some embodiments, battery charge management using a scheduling application is disclosed. A first parameter may be received from a scheduling application running on a mobile computing device having a battery pack. Based on at least the first parameter and battery pack data, a required charge percentage for the battery pack may be determined and the remaining capacity of the battery pack may be determined. If the remaining capacity of the battery pack is less than the required charge percentage, a charge termination voltage may be determined and the battery pack may be charged to the charge termination voltage. | 2012-04-05 |
| 20120081079 | EMERGENCY DISCHARGE FEATURE - A system includes a channel over which to charge a battery, control circuitry, and a discharge circuit associated with the channel to discharge the battery. The discharge circuit is configured for discharging the battery at a current that exceeds an operational current through the channel. In response to a fault in the battery, the control circuitry is configured to disconnect the battery from a signal path in the channel and to produce an electrical connection to enable discharge of the battery through the discharge circuit. | 2012-04-05 |
| 20120081080 | CONTROL APPARATUS FOR MOTOR-ASSISTED BICYCLE - A control apparatus for a motor-assisted bicycle detects a pedaling torque applied to a crankshaft with a pedaling force sensor, controls a motor unit of the motor-assisted bicycle in a regenerative control process to charge a battery if the torque value of the detected pedaling torque is equal to or smaller than a predetermined level, and controls the motor unit in an assistive control process if the torque value is greater than the predetermined level. The control apparatus switches between the assistive control process and the regenerative control process depending on the torque value which is detected, increases the predetermined level if the state of charge of the battery becomes lower than a first level, and restores the predetermined level if the state of charge of the battery becomes higher than a second level which is greater than the first level. | 2012-04-05 |
| 20120081081 | SYSTEM AND METHOD FOR CONVERTING AN AC INPUT VOLTAGE TO A REGULATED OUTPUT CURRENT - A converter according to one embodiment converts an AC voltage to a regulated output current provided to a DC load of a Z-type configuration. A filter capacitor is provided to average current flowing through the load. The converter includes a rectifier network for rectifying the AC voltage and for providing a rectified voltage, and a smoothing capacitor for smoothing the rectified voltage. The converter includes a hysteretic current mode controller which controls a switching transistor based on sensed voltage and sensed current provided through an inductor coupled in series with the load. The transistor is turned on when current reaches a low valley level and is turned off when the current reaches a peak level. Operation toggles in this manner while a sensed voltage is above a predetermined level. A valley fill network may be provided to keep sensed voltage from falling below the predetermined minimum level. | 2012-04-05 |
| 20120081082 | FREQUENCY GENERATOR WITH FREQUENCY JITTER - A frequency generator with frequency jitter is disclosed. The frequency generator comprises a capacitor, a comparing unit, a charging and discharging unit, a delay unit, and a charging and discharging switch unit. The comparing unit is coupled to the capacitor and generates a charging and discharging control signal according to a voltage of the capacitor. The charging and discharging unit is coupled to the capacitor. The delay unit is coupled to the comparing unit and receives a delay signal. The delay unit delays the charging and discharging control signal according to the delay signal to generate a charging and discharging delay signal. The charging and discharging switch unit is coupled to the charging and discharging unit and the delay unit, and charges or discharges the capacitor according to the charging and discharging delay signal. | 2012-04-05 |
| 20120081083 | ROTARY ELECTRIC MACHINE FOR RELIABLY DETECTING OFF TIMING OF SWITCHING ELEMENT - In a rotary electric machine, an on-timing setter sets on-timings of each of a high-side switching element and a low-side switching element for each of at least two-phase stator windings. An off-timing setter sets off-timings of each of the high-side switching element and the low-side switching element. An off-timing fault determiner determines a fault of an off-timing of a target switching element as one of the high-side switching element and the low-side switching element set by the off-timing setter when a time interval from the off-timing of the target switching element set by the off-timing setter to time when a phase voltage corresponding to the target switching element reaches a threshold after the off-timing thereof is shorter than a preset value. | 2012-04-05 |
| 20120081084 | Controller with Valley Switching and Limited Maximum Frequency for Quasi-Resonant Power Converters - A controller for a power converter is provided. The controller includes a PWM circuit, a detection circuit, a signal generation circuit and an oscillation circuit. The PWM circuit generates a switching signal coupled to switch a transformer of the power converter. A feedback signal is coupled to the PWM circuit to disable the switching signal. The detection circuit is coupled to the transformer via a resistor for generating a valley signal in response to a signal waveform of the transformer. The signal generation circuit is coupled to receive the feedback signal and the valley signal for generating an enabling signal. The oscillation circuit generates a maximum frequency signal. The maximum frequency signal associates with the enabling signal to generate a pulse signal. The feedback signal is correlated to an output load of the power converter. The maximum frequency of the pulse signal is limited. | 2012-04-05 |
| 20120081085 | POWER SUPPLY CONTROLLER, ELECTRONIC DEVICE, AND METHOD FOR CONTROLLING POWER SUPPLY - A comparator type power supply controller that controls an output voltage. The power supply controller includes a comparator that compares a feedback voltage, which corresponds to the output voltage, with a reference voltage, wherein the comparator instructs power supply when the feedback voltage decreases when the feedback voltage decreases from the reference voltage. An offset application circuit is coupled to the comparator. The offset application circuit controls an input offset voltage of the comparator and decreases the input offset voltage as time elapses when the feedback voltage becomes lower than the reference voltage after the power supply ends. An amplifier amplifies a voltage difference of the feedback voltage and the reference voltage. The offset application circuit increases a change speed of the input offset voltage as the voltage difference increases in accordance with an output voltage of the amplifier. | 2012-04-05 |
| 20120081086 | POWER SUPPLY CIRCUIT AND A METHOD FOR OPERATING A POWER SUPPLY CIRCUIT - A power supply circuit and a method for operating a power supply circuit involves selecting a normal operational mode or a pass-through operational mode for a switched mode power supply, in the normal operational mode, converting an input voltage of a power supply circuit to an intermediate voltage using a switching regulator of the switched mode power supply, in the pass-through operational mode, disabling the switching regulator such that the input voltage of the power supply circuit is unchanged by the switching regulator and an electric current consumption of the switching regulator approaches zero, and converting the intermediate voltage or the input voltage of the power supply circuit to an output voltage using a linear voltage regulator. | 2012-04-05 |
| 20120081087 | HUB DEVICE CAPABLE OF SUPPLY POWER - The present invention relates to a hub device capable of supplying power, which comprises: a power input unit, a Boost/Buck unit, a power output unit, a control unit, a plurality of first electrical connection units, and a second electrical connection unit. By way of the control unit and the plurality of first electrical connection units, the hub device can provide a hub function for a plurality of the USB connectors; moreover, By means of the power input unit, the Boost/Buck unit and the power output unit, the hub device is able to supply the a portable computer with the necessary power thereof. So that, when a user goes out with the portable computer, the specific power supply of the portable computer may not be carried out; thereof, that makes the living of the user more convenient. | 2012-04-05 |
| 20120081088 | POWER SUPPLY APPARATUS, POWER SUPPLY SYSTEM AND METHOD OF SUPPLYING POWER THEREOF - A method of supplying power from a solar cell module to a load includes measuring the output of the solar cell module, and controlling a power converter having a preset duty ratio to start operating in accordance with the measured output. Additionally, a power supply apparatus and a power supply system include a solar cell module having at least one solar cell to absorb sunlight, a power converter which converts power output from the solar cell module and supplies the converted power to a load, and a driving controller which measures the output of the solar cell module and controls the power converter having a preset duty ratio to start operating according to the measured output. Thus, electrical stress on the power converter is significantly decreased even though incident solar energy and/or the load is largely varied, so that the power converter may be stably driven to output the power. | 2012-04-05 |
| 20120081089 | POWER SUPPLY CIRCUIT - A power supply circuit includes: an analog/digital converter for converting an analog signal to a digital signal; a pulse width modulation signal control circuit for generating a setting control signal varying in accordance with the difference between a reference voltage and a feedback voltage and a control signal for controlling a pulse width modulation signal, which is based on the digital signal; and a pulse width modulation signal generation circuit for generating the pulse width modulation signal, to which the count signal and the control signal are input, in which the control signal controls the duty cycle of the pulse width modulation signal, and the setting control signal controls the cycle of updating the duty cycle of the pulse width modulation signal. | 2012-04-05 |
| 20120081090 | VOLTAGE REGULATOR - The voltage regulators are capable of limiting undershoots of the output voltage without having a similar effect on overshoots because of the presence of a current cancellation network, input with the reference voltage and coupled to the second input of the error amplifier. This current cancellation network is adapted to inject into the second input a unidirectional compensation current of the first and second currents injected by the first and second feedback networks, respectively, the compensation current being determined by time variations of the difference between a replica of the output regulated voltage and the reference voltage and/or by time variations of the reference voltage. | 2012-04-05 |
| 20120081091 | CONTROL CIRCUIT, DCDC CONVERTER, AND DRIVING METHOD - A current generator circuit included in a triangle-wave generator circuit in a control circuit includes plural stages of current mirrors connected in parallel with each other. The plural stages of current mirrors are placed so that the sum of output currents output therefrom becomes an output current of the current generator circuit. A switching element that controls the on/off state of a current in accordance with the amount of load current of a DCDC converter is connected to each of the current mirrors. | 2012-04-05 |
| 20120081092 | LOW ELECTROMAGNETIC EMISSION DRIVER - The disclosure concerns circuitry for controlling a power transistor of a drive circuit arranged to drive an electrical component, the circuitry comprising: a variable current source adapted to set the level of a current for charging a control terminal of said power transistor; and a control circuit adapted to control said variable current source in a continuous manner based on a feedback voltage. | 2012-04-05 |
| 20120081093 | Switching regulator - A switching regulator includes: a switching element that controlling supply of power supply voltage according to a control signal; a smoothing circuit smoothing the power supply voltage supplied via the switching element and supplying the smoothed power supply voltage as an output voltage to an output terminal; an error amplifier outputting an error signal according to a difference between the output voltage supplied to the output terminal and a reference voltage; a delta sigma modulation circuit generating a delta sigma modulation signal according to the error signal; and a power supply abnormality detection circuit outputting the delta sigma modulation signal as the control signal and detecting an abnormality in the power supply voltage based on the delta sigma modulation signal. | 2012-04-05 |
| 20120081094 | REFERENCE VOLTAGE BASED EQUIVALENT SERIES RESISTANCE (ESR) EMULATION FOR CONSTANT ON-TIME (COT) CONTROL OF BUCK REGULATORS - The present invention uses a reference voltage that varies within a Pulse Width Modulation (PWM) cycle to generate the PWM signal. This allows for stability in the feedback of Constant On-Time (COT) control for buck controllers when low Equivalent Series Resistance (ESR) capacitors are used as the output capacitor. The reference voltage is adjusted using features of a PWM cycle in a voltage mode without using external inductor current information. | 2012-04-05 |
| 20120081095 | SYSTEMS AND METHODS FOR CONTROLLING INDUCTIVE ENERGY IN DC-DC CONVERTERS - A DC-DC converter comprises a high-side switch, a low-side switch connected to the high-side switch, and an output capacitance. An inductance has one end connected to the high-side switch and the low-side switch and another end connected to the output capacitance. A shunting device circulates current flowing through the inductance back to the inductance during a load reduction transition to control a voltage across the output capacitance. | 2012-04-05 |
| 20120081096 | POWER SUPPLY UNIT - A power supply unit, which is mounted in a host device for supplying power to a client device through a cable interposed therebetween, includes an output unit configured to generate a first output voltage from an input voltage. A controller is provided in the power supply to perform voltage feedback control on the output unit such that the first output voltage is maintained at a predetermined target value. Also, the power supply unit includes a first correction unit configured to correct the voltage feedback control at the controller such that the first output voltage is increased as a second output voltage finally supplied to the client device becomes lower, and a second correction unit configured to correct the voltage feedback control at the controller such that the first output voltage is increased as an output current supplied from the host device to the client device becomes larger. | 2012-04-05 |
| 20120081097 | High Voltage High Current Regulator - High voltage high current regulator circuit for regulating current is interposed between first and second terminals connected to an external circuit and comprises at least one main-current carrying cold-cathode field emission electron tube conducting current between the first and second terminals. First and second grid-control cold-cathode field emission electron tubes provide control signals for first and second grids of the at least one main-current carrying cold-cathode field emission electron tube for positive and negative excursions of voltage on the first and second terminals, respectively. The current regulator circuit may be accompanied by a voltage-clamping circuit that includes at least one cold-cathode field emission electron tube. At least two cold-cathode field emission electron tubes, configured to operate at high voltage and high current, are preferably contained within a single vacuum enclosure and are interconnected to provide a circuit function, so as to form a high voltage high current vacuum integrated circuit. | 2012-04-05 |
| 20120081098 | METHOD AND APPARATUS FOR SIMPLIFYING THE CONTROL OF A SWITCH - A circuit for use in a half bridge converter includes a high side switch coupled between a positive input terminal and a first terminal of a primary transformer winding. A low side switch is coupled between a negative input terminal and the first terminal. A first control circuit is coupled to the high side switch to sense a slope of a voltage across the high side switch while the high side switch is off to control the high side switch in response to the sensed slope across the high side switch. A second control circuit is coupled to the low side switch to sense a slope of a voltage across the low side switch while the low side switch is off to control the low side switch in response to the sensed slope of the voltage across the low side switch. | 2012-04-05 |
| 20120081099 | SUPPLY INVARIANT BANDGAP REFERENCE SYSTEM - An electronic reference-signal generation system includes a supply invariant bandgap reference system that generates one or more bandgap reference signals that are substantially unaffected by bulk error currents. In at least one embodiment, the bandgap reference generates a substantially invariant bandgap reference signals for a range of direct current (DC) supply voltages. Additionally, in at least one embodiment, the bandgap reference system provides substantially invariant bandgap reference signals when the supply voltage varies due to alternating current (AC) voltages. In at least one embodiment, the bandgap reference system generates a bandgap reference voltage VBG, a “proportional to absolute temperature” (PTAT) current (“i | 2012-04-05 |
| 20120081100 | SEMICONDUCTOR APPARATUS - A semiconductor apparatus includes a comparison voltage generation unit configured to generate a plurality of different comparison voltages, a reference voltage generation unit configured to receive a generation code from an external system, select one of the plurality of the different comparison voltages according to the generation code, and generate a reference voltage, and a reference voltage determination unit configured to receive the generation code and an expected reference voltage from the external system, check whether a level of the expected reference voltage is in a target range, and output a check result to the external system. | 2012-04-05 |
| 20120081101 | DEAD-LINE PHASE IDENTIFICATION SYSTEM AND METHOD THEREOF - A system and method for dead-line conductor phase identification is provided. The system includes a receiver unit having a set of current sensors, such as current transformers. The receiver unit current sensors are coupled to conductors having a known phase in a multiphase power line. The current sensors are positioned adjacent a transformer connected to a section of the power line having an open circuit condition. A transmitter unit transmits a current signal on to a conductor at the open circuit section of the power line. The current sensors detect the current signal and the receiver unit transmits a signal to the transmitter unit identifying the phase on which the current signal was transmitted. | 2012-04-05 |
| 20120081102 | AUDIO JACK WITH GROUND DETECT - Circuits, methods, and apparatus that provide an audio receptacle that can detect the presence of an audio jack without using mechanical switches or other such mechanical mechanisms. One example provides an audio receptacle having two contacts that may be electrically connected when an audio jack is inserted. When no audio jack is inserted into the audio receptacle, the two ground contacts may not be connected. When an audio jack is inserted into the audio receptacle, the resulting closed circuit may be detected and used to activate or otherwise turn on one or more audio circuits in or associated with the audio receptacle. Conversely, when no audio jack is inserted, the resulting open circuit may be detected and used to deactivate or otherwise turn off or reduce power in one or more audio circuits in or associated with the audio receptacle. | 2012-04-05 |
| 20120081103 | SIGNAL DETECTION CIRCUIT, METHOD AND SYSTEM - A signal detection circuit is provided, and includes a signal conversion module, a threshold control module, and a comparison module. The signal conversion module is configured to: convert a reference voltage signal into a reference current signal, and send the reference current signal to the threshold control module; convert a voltage signal to be detected into a current signal to be detected, and send the current signal to be detected to the comparison module. The threshold control module is configured to: generate a threshold current signal according the reference current signal, and send the threshold current signal to the comparison module; and receive a threshold control signal, and change magnitude of the threshold current signal according to the threshold control signal. The comparison module is configured to compare magnitude of the current signal to be detected with the magnitude of the threshold current signal, and output a comparison result. | 2012-04-05 |
| 20120081104 | METHOD FOR MEASUREMENT OF TOTAL HARMONIC DISTORTION - A method of measuring the total harmonic distortion in an electrical distribution system. The distribution system is sampled regularly to generate a set of data. The data is filtered using a narrow band filtering algorithm to measure the energy in fundamental and other harmonic frequencies. Due to the filtering, the energy in harmonic frequencies can be measured without interference from broadband noise, which provides an improvement in the measurement of total harmonic distortion at low current or voltage levels. A method is provided to sum the energy in identified frequencies in a multi-pass configuration, such that only a subset of all monitored frequencies are filtered and summed in each pass, with the balance being filtered and measured in subsequent passes. After all subsets are measured, the total harmonic distortion is calculated. | 2012-04-05 |
| 20120081105 | Signal Generation For Spectral Measurements - Embodiments related to signal generation for spectral measurements are described and depicted. | 2012-04-05 |
| 20120081106 | DOUBLE-COIL INDUCTIVE PROXIMITY SENSOR APPARATUS - Systems and/or methods are provided for a dual-channel inductive proximity sensor. The sensor can include a sensing element which includes a core having a first cavity and a second cavity, a first coil accommodated within the first cavity of the core, and a second coil housed within the second cavity of the core. Each coil can be independently driven by oscillators to generate respective magnetic fields. The magnetic fields can be monitored to determine whether detection of a target object occurs. | 2012-04-05 |
| 20120081107 | INDUCTIVE PROXIMITY SENSOR WITH ACTIVE CIRCUIT TO CANCEL STRAY FIELDS - Systems and/or methods are provided for cancelling stray magnetic fields escaping out the back or sides of an inductive proximity sensor. The inductive proximity sensor includes a coil assembly with a sensing coil. The sensing coil detects magnetic flux escaping out the sides and/or back of the sensor. An active circuit couples to the sensing coil. The active circuit generates a canceling current based upon a current and/or electromotive force in the sensing coil due to the flux. The cancelling current drives a driven coil to generate a magnetic field which can reduce total flux through the sensing coil to zero. | 2012-04-05 |
| 20120081108 | NONDESTRUCTIVE INSPECTION METHOD FOR A HEAT EXCHANGER EMPLOYING ADAPTIVE NOISE THRESHOLDING - A method of eddy current testing for flaws in a tube is provided that includes passing an eddy current probe through the tube and obtaining eddy current data for a number of positions along the tube, analyzing the eddy current data to generate background noise data for a number of positions along the tube, analyzing the eddy current data to generate extracted data for a number of positions along the tube, and determining whether a flaw of a particular category is present in the tube based on a set of one or more of rules applied to at least a portion of the extracted data, wherein at least one of the rules uses a particular part of the extracted data and employs a threshold that is a function a particular part of the background noise data that is associated with the particular part of the extracted data. | 2012-04-05 |
| 20120081109 | Hall sensor arrangement for the redundant measurement of a magnetic field - In various embodiments, a Hall sensor arrangement for the redundant measurement of a magnetic field may include a first Hall sensor on a top side of a first semiconductor substrate; a second Hall sensor on a top side of a second semiconductor substrate; a carrier having a top side and an underside; wherein the first Hall sensor is arranged on the top side of the carrier and the second Hall sensor is arranged on the underside of the carrier; and wherein the measuring area of the first Hall sensor projected perpendicularly onto the carrier at least partly overlaps the measuring area of the second Hall sensor projected perpendicularly onto the carrier. | 2012-04-05 |
| 20120081110 | CURRENT SENSOR - A current sensor comprises a flat housing made of plastic having an underside and an upper side and electrical connections, a current conductor through which the current to be measured flows, and a semiconductor chip having two magnetic field sensors, wherein the component of the magnetic field detected by the two magnetic field sensors points in opposite directions at the locations of the two magnetic field sensors. The semiconductor chip is connected as flipchip to the electrical connections. The current conductor extends from one side wall to the opposite side wall of the housing, is embedded flat in the underside of the housing and is therefore exposed on the underside of the housing. The opposing surfaces of the semiconductor chip and the current conductor are separated by an electrical insulation layer. | 2012-04-05 |
| 20120081111 | System For Signal Detection of Specimen Using Magnetic Resistance Sensor and Detecting Method of The Same - The present invention is to provide a measurement system using a magneto-resistance sensor, comprising a magneto-resistance sensor configured to sense a magnetic component of a target combined with a magnetic particles and an external magnetic field supplying unit configured to provide an external magnetic field of a first and a second directions to the magneto-resistance sensor, wherein the external magnetic field supplying unit comprises a magnetic field compensating unit configured to compensate a loss of magnetic field by circulating the external magnetic field of the second direction. | 2012-04-05 |
| 20120081112 | MAGNETIC RESONANCE IMAGING METHOD, SYSTEM AND COMPUTER-READABLE STORAGE MEDIUM - In a magnetic resonance method and system to acquire an MR image using a pulse sequence that sets the magnetization vector in the steady state into a stable oscillation under RF excitation pulses radiated at a time interval of time TR, the phase coding gradients for coding a k-space line in k-space of the pulse sequence (which k-space corresponds to the desired MR image) are switched such that the first moment of the phase coding gradient is minimal at the point in time of the radiation of an RF excitation pulse without the repetition time TR being extended relative to pulse sequences with unminimized phase coding gradients. | 2012-04-05 |
| 20120081113 | MAGNETIC RESONANCE METHOD AND SYSTEM TO GENERATE AN IMAGE DATA SET - In a magnetic resonance method and system to generate an image data set with a magnetic resonance system at least two phase coding gradients are activated in respective spatial directions. An RF excitation pulse is radiated. At least one raw data point in a k-space data set belonging to the image data set is read out per time period after the radiation of the RF excitation pulse. The time period for each raw data point is determined depending on a maximum strength achievable with the magnetic resonance system of the activated phase coding gradient that corresponds to the spatial direction in which the respective raw data point has the largest gradient moment in terms of absolute value. The maximum strength of this phase coding gradient that can be achieved with the magnetic resonance system is determined depending on the determined largest gradient moment. | 2012-04-05 |
| 20120081114 | System for Accelerated MR Image Reconstruction - An MR imaging system uses the multiple RF coils for acquiring corresponding multiple image data sets of the slice. An image data processor comprises at least one processing device conditioned for, generating a composite MR image data set representing a single image in a single non-iterative operation by performing a weighted combination of luminance representative data of individual corresponding pixels of the multiple image data sets in providing an individual pixel luminance value of the composite MR image data set. The image data processor reduces noise in the composite MR image data set by generating a reduced set of significant components in a predetermined transform domain representation of data representing the composite image to provide a de-noised composite MR image data set. An image generator comprises at least one processing device conditioned for, generating a composite MR image using the de-noised composite MR image data set. | 2012-04-05 |
| 20120081115 | USING MEMRISTOR DEVICES AS SWITCHES FOR MRI COILS - A radiofrequency (RF) coil assembly ( | 2012-04-05 |
| 20120081116 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - According to one embodiment, a MRI apparatus includes a data acquisition unit, a phase correction amount calculation unit and an image data generating unit. The data acquisition unit acquires MR signals in 3D k-space according to an imaging condition for HFI. The phase correction amount calculation unit calculates a first phase correction amount by applying processing including a phase correction based on k-space data for calculating the first phase correction amount and data compensation for a non-sampling region with the MR signals in the 3D k-space. The k-space data for calculating the first phase correction are MR signals less than the MR signals in the 3D k-space. The image data generating unit generates MR image data by applying processing including a phase correction using a second phase correction amount based on the first phase correction amount and the data compensation with the MR signals in the 3D k-space. | 2012-04-05 |
| 20120081117 | SYSTEM AND METHOD FOR SELF-SEALING A COLDHEAD SLEEVE OF A MAGNETIC RESONANCE IMAGING SYSTEM - Systems and methods for self-sealing a coldhead sleeve of a magnetic resonance imaging system are provided. One coldhead sleeve arrangement includes a coldhead sleeve configured to receive therein a coldhead of an MRI system and having an open end. The coldhead sleeve arrangement also includes a sealing member coupled at the open end of the coldhead sleeve and configured in a normally closed position covering the open end. | 2012-04-05 |
| 20120081118 | SKEWED RADIO FREQUENCY COIL ARRAYS FOR MAGNETIC RESONANCE IMAGING - A radio frequency (RF) coil array configured for use with a magnetic resonance imaging (MRI) system and that includes coil elements with a skewed coil geometry is provided. The coil elements are skewed with respect to a given direction, such as the slice-encoding direction of an MRI system, such that a variation in spatial sensitivity along that direction is provided. This spatial sensitivity variation allows for parallel imaging acceleration along the direction of the variation, which provides improved performance over standard rectangular geometries in performing acceleration along the slice-encode direction for three-dimensional axial acquisitions. | 2012-04-05 |
| 20120081119 | TRANSMISSION LINE PROBE FOR NMR - A probe for an NMR device is disclosed in which a saddle coil is disposed on one side of a flexible insulating material, and an additional conductor is disposed on the opposite side. The additional conductor and the conductors of the saddle coil create a capacitance across the insulating material. This capacitance acts with the inductance of the saddle coil such that the probe itself forms a transmission line. The probe is thus inherently broadband and requires no tuning. It also presents a constant impedance, thus facilitating impedance matching to an NMR spectrometer. In a preferred embodiment, a chip resistor is disposed on the flexible insulating material, terminating the transmission line. | 2012-04-05 |
| 20120081120 | HYPERPOLARISATION DEVICE USING PHOTONS WITH ORBITAL ANGULAR MOMENTUM - A magnetic resonance examination system comprises an RF-system for inducing resonance in polarised dipoles and receiving magnetic resonance signals from an object to be examined and an photonic-based hyperpolarisation device. The an electromagnetic source for emitting photonic radiation: —a mode converter to impart orbital angular momentum to the electromagnetic radiation; a spatial filter to select from the mode converter a diffracted or refracted photonic beam endowed with orbital angular momentum for polarising the dipoles via transferred orbital angular momentum; —a beam controller to apply the photonic beam endowed with orbital angular momentum over an extended target zone. | 2012-04-05 |
| 20120081121 | MULTIPLE DEPTHS OF INVESTIGATION USING TWO PAIRS OF TOROID TRANSMITTERS - An apparatus and method for estimating a parameter of interest of an earth formation, particularly relating to borehole logging methods and apparatuses for estimating electrical resistivity properties at multiple depths of investigation. The apparatus may include two or more transmitters for introducing electrical current to the earth formation. The apparatus may include a controller configured to deliver an electrical signal to the two or more transmitters either simultaneously or sequentially. The controller may deliver an electrical signal to two or more transmitters at the same frequency for estimating depth of investigation. The apparatus may include one or more receivers responsive to electric signals from the earth formation at one or more frequencies to provide data from one or more depths of investigation. The method may include steps for using the apparatus to obtain data that may be used to estimate the parameter of interest. | 2012-04-05 |
| 20120081122 | COMBINATIONS OF AXIAL AND SADDLE COILS TO CREATE THE EQUIVALENT OF TILTED COILS FOR DIRECTIONAL RESISTIVITY MEASUREMENTS - An electromagnetic well logging instrument includes an instrument housing, at least one transmitter coil disposed on the housing and at least one receiver coil disposed on the housing. At least one of the transmitter and receiver coils is formed from a combination solenoidal (axial) and saddle coils. The net dipole moment direction of the combined coil is determined by selecting the relative turn-areas of the saddle and solenoidal coil. The combined coil can be formed from a single wire wound to have both a longitudinal magnetic dipole moment and a transverse magnetic dipole moment with respect to a longitudinal axis of the housing. | 2012-04-05 |
| 20120081123 | UNIVERSAL AUTOMOTIVE IGNITION PICKUP ASSEMBLY - The present invention is a Universal Automotive Ignition Pickup Assembly that produces an ignition secondary voltage waveform that can be monitored by an oscilloscope or microprocessor. This is accomplished with a sensing probe that can be capacitive coupled; inductively coupled; or capacitive and inductively coupled at the same time. Due to the ability of a pickup to be capacitive and inductive at the same time, the ignition voltage waveforms are clear and concise from secondary ignition wires to a multitude of different ignition coil types. | 2012-04-05 |
| 20120081124 | SYSTEM AND METHOD FOR DETERMINING PHYSICAL STATUS OF SWITCH ELEMENTS - System and methods are provided for monitoring a state of a switch element connecting a DC power supply to a load. A system includes a transformer having first and second windings, where a first end of the second winding electrically coupled to a first switch node of the switch element. The system also includes a transmit circuit configured for providing a waveform at the first winding and a sensor element having galvanically isolated input and output nodes for inducing a monitor signal at the output nodes in response to a signal at the input nodes. The system further includes a receive circuit coupled to the output nodes and configured for generating one or more output signals in response to the monitor signal. The system also includes capacitor elements for providing DC isolation for the second winding with respect to the first switch node and the sensor element. | 2012-04-05 |
| 20120081125 | Integrated MOSFET Current Sensing for Fuel-Gauging - Integrated MOSFET current sensing for fuel-gauging. A | 2012-04-05 |
| 20120081126 | BATTERY MONITORING SYSTEM WITH A SWITCHING MODE TOPOLOGY - A battery monitoring system for a battery including multiple battery cells is disclosed. The battery monitoring system includes multiple first switch sets coupled across the battery cells respectively, an energy storage element, and a comparator coupled to the energy storage element via a second switch set. The energy storage element samples cell voltages of the battery cells via the first switch sets respectively. The comparator compares a respective cell voltage with a first reference signal to determine whether a fault condition occurs on a respective battery cell. The second switch set and one of the first switch sets are turned on alternately. | 2012-04-05 |
| 20120081127 | METHOD FOR EVALUATING THE ABILITY OF A BATTERY TO START - The charge state of a battery powering a starter of a motor vehicle is evaluated to determine whether the battery voltage is sufficiently high to re-start an internal combustion engine during a stop/start operating mode. The engine is operated to drive a generator so that the generator output voltage is at a level below a setpoint value for a time period. At the end of the time period, the battery voltage is measured and if it exceeds a threshold voltage the battery charge state is determined to be sufficient to re-start the engine. The threshold voltage is approximately equal to the rated battery voltage. If the measured battery voltage is below the threshold voltage value, indicating that the battery will not have sufficient charge to re-start the motor, automatic shut-off of the engine when the vehicle stops is suppressed. | 2012-04-05 |
| 20120081128 | SYSTEM AND METHOD FOR DETECTION OF OPEN CONNECTIONS BETWEEN AN INTEGRATED CIRCUIT AND A MULTI-CELL BATTERY PACK - An apparatus comprises an integrated circuit and an open connection detection circuit within the integrated circuit. The integrated circuit includes a plurality of inputs for connecting with a plurality of outputs of a multi-cell battery pack. The open connection detection circuit within the integrated circuit detects an open connection on at least one of the plurality of inputs from the multi-cell battery and generates a fault condition responsive thereto. | 2012-04-05 |
| 20120081129 | TEST APPARATUS - Delay circuits apply a delay to set and reset pulses, respectively. An RS flip-flop is set according to the set pulse that has passed through the set delay circuit, and is reset according to the reset pulse received from the reset delay circuit. A demultiplexer receives the reset pulse that has passed through the reset delay circuit. In a first state, the demultiplexer outputs the reset pulse to the reset terminal of the RS flip-flop. In a second state, the demultiplexer outputs the reset pulse signal to the reset delay circuit again, thereby forming a closed loop. A loop control unit counts the number of times a pulse is passed through the loop. When the number of passes through the closed loop reaches a predetermined value, the demultiplexer is set to the first state. | 2012-04-05 |
| 20120081130 | RESISTOR STORAGE CAVITY IN PLUG OF SENSING EDGE - A sensing edge for providing a signal to a controller indicating that a forward edge of a door is obstructed during operation includes an elongated sheath and first and second end plugs. The elongated sheath is mounted to the forward door edge and has a first end, second end and first cavity connecting the ends. First and second spaced apart electrically conductive materials are disposed within the elongated sheath. The first end plug includes an inner end having first engaging structures positioned within the first cavity in an assembled configuration and an outer end having a first depression for housing an electronic component. The electronic component is electrically coupled to the electrically conductive materials. The second end plug includes an inner end having a sensing component and second engaging structures positioned within the first cavity in an assembled configuration. The sensing component is electrically coupled to the electrically conductive materials. | 2012-04-05 |
| 20120081131 | DETECTION OF A CONTACTLESS DATA STORAGE DEVICE - For detecting within a communication range of an antenna a contactless data storage device which is configured for inductive coupling with an electromagnetic field emitted by the antenna, a return signal is detected (S | 2012-04-05 |
| 20120081132 | Measuring Minority Carrier Lifetime - An apparatus includes a member including a ferromagnetic material, an inductance-capacitance resonant circuit, a substrate disposed relative to the member, and a plurality of radiation sources. The member includes a post disposed at its center and a surface extending to an outer wall. The member defines a gap between the post and the outer wall. The inductance-capacitance resonant circuit is configured to resonate at a measurement frequency. The circuit includes an inductor disposed relative to the post. The substrate is disposed relative to the member. The substrate is electromagnetically coupled to the inductor. The plurality of radiation sources is disposed radially outward from and circumferentially around the post of the member. The apparatus can be used to simultaneously measure conductance (inverse sheet resistance), steady state photoconductance, true steady state minority carrier lifetime, photoconductance build-up and photoconductance decay lifetime. | 2012-04-05 |
| 20120081133 | METHOD OF DETECTING IMPURITIES IN HIGH TEMPERATURE AQUEOUS SOLUTION AND APPARATUS OF DETECTING IMPURITIES FOR THE SAME - The present invention relates to a method of detecting impurities in a high-temperature aqueous solution and an apparatus of detecting impurities for the same. Specifically, the present invention provides a method of detecting impurities in a high-temperature aqueous solution comprising a reducing agent using an electrochemical water chemistry technology detecting the electrochemical current varied according to the degree in which the impurities in the high-temperature aqueous solution hinder the formation of an oxide film that is formed on a noble metal electrode, and an impurity detecting apparatus comprising a noble metal electrode, a counter electrode, and a device of applying the electrochemical potential and measuring the electrochemical current for the method of detecting impurities. | 2012-04-05 |
| 20120081134 | CORONA EFFLUENT SENSING DEVICE - The presently disclosed embodiments are directed to the detection and monitoring of corona effluent. The present embodiments pertain to a corona sensing device that employs a film of organic charge transporting material, as the active component in a corona effluent sensing device, that is disposed onto a patterned electrode bearing support member. | 2012-04-05 |
| 20120081135 | INSULATION MEASUREMENT APPARATUS - An insulation measurement apparatus includes a path including a first resistor, a capacitor electrically floated from a ground, and a second resistor between a positive to a negative electrode side of a power supply, a first switching element between the power supply positive electrode side and the capacitor, a second switching element between the capacitor and the power supply negative electrode side, a detection section detecting a charge voltage on the capacitor and determining a power supply insulation state, and a voltage setting section executing a power supply voltage measurement mode controlling the first and second switching elements to charge the capacitor for a predetermined time period, and an insulation voltage measurement mode charging a terminal of a positive or negative electrode side of the capacitor via a resistor between the power supply positive or negative electrode and the ground for a predetermined time period. | 2012-04-05 |
| 20120081136 | COATING MONITOR FOR EVALUATING THE EFFECTIVENESS OF PROTECTIVE COATINGS - The coating monitoring system is based on electrochemical impedance spectroscopy (EIS). The system consists of one or more compact and rugged mini-potentiostat modules coupled to one or more electrodes mounted on top of the paint coating of the structure being monitored. The electrodes and modules can be coated with a topcoat if desired. Alternatively, they may be mounted only temporarily to the structure for spot inspection. They periodically report to a laptop. Communications may be implemented using a wireless protocol. The units may be battery powered with an estimated battery lifetime of up to ten years, depending on the frequency of measurement and interrogation Alternative power supplies may be used to replace or supplement the battery to allow extended battery lifetime. Moisture, humidity, or other sensors may be incorporated into the coating monitor. | 2012-04-05 |
| 20120081137 | TESTING METHOD FOR SEMICONDUCTOR INTEGRATED ELECTRONIC DEVICES AND CORRESPONDING TEST ARCHITECTURE - A testing method is described of at least one device provided with an integrated testing circuit and in communication with at least one tester where messages/instructions/test signals/information are exclusively sent from the tester to the device . A testing architecture is also described for implementing this testing method. | 2012-04-05 |
| 20120081138 | TESTING OF HIGH-SPEED INPUT-OUTPUT DEVICES - Embodiments of the invention are generally directed to testing of high-speed input-output devices. An embodiment of a high-speed input-output apparatus includes a transmitter and a receiver, and a loop-back connection from an output of the transmitter to an input of the receiver, the loop-back connection including a first connector and a second connector for transmission of differential signals. The apparatus further includes a first inductor having a first terminal and a second terminal and second inductor having a first terminal and a second terminal, the first terminal of the first inductor being connected to the first connector and the first terminal of the second inductor being connected to the second connector, the second terminal of the first inductor and the second terminal of the second inductor providing a test access port for direct current testing of the apparatus. | 2012-04-05 |
| 20120081139 | SEMICONDUCTOR TEST DEVICE, SEMICONDUCTOR TEST CIRCUIT CONNECTION DEVICE, AND SEMICONDUCTOR TEST METHOD - A semiconductor test device and method for sequentially carrying out tests including an AC test, DC test, and thermal resistance test on a power semiconductor device are provided. The semiconductor test device includes a holding unit that positions the power semiconductor device. Test units each generate a test signal for the power semiconductor device and determine a test result generated in response to the test signal. A connection unit switches between the test units and selectively connects the test units electrically to electrodes of the power semiconductor device. The connection unit is controlled such that the test units are sequentially connected to the power semiconductor device to perform a plurality of the tests. The connection unit may include parallel plate electrodes in proximity to each other across an insulating sheet. The parallel plate electrodes may connect the power semiconductor device to positive and negative power sources of the test unit. | 2012-04-05 |
| 20120081140 | PROBE CARD - Provided is a probe card which has a space transformer which may be effectively changed to correspond to a change in wafer chip structure and is capable of maximizing acceptable channels of the space transformer. The probe card for testing a semiconductor chip on a wafer includes: a space transformer body in which a plurality of unit probe modules are arranged at intervals; a main circuit board to which an electrical signal is applied from an external test device; a reinforcement plate for supporting the main circuit board such that the unit probe modules become stable against an external effect; a standing conductive medium which is inserted into a penetration portion provided in the space transformer body; a lower surface circuit board in which the standing conductive medium is electrically connected to the unit probe module as a flexible conductive medium and the standing conductive media are mounted; and a mutual connection member for electrically connecting the lower surface circuit board to the main circuit board. | 2012-04-05 |
