02nd week of 2013 patent applcation highlights part 17 |
Patent application number | Title | Published |
20130009535 | SPARK PLUG - A sparkplug includes an insulator having an axial hole, a center electrode of which a front end is placed further forwards than a front end of the insulator, and a shell. The center electrode has a shoulder portion and a main body portion and is made up of an outer layer and an inner layer. A front end face, which is connected to an outer circumferential surface of the insulator and the axial hole and slopes towards the rear end side, is formed at a front end portion of the insulator, and the front end of the insulator is placed further forwards than a boundary between the shoulder portion and the main body portion. A front end portion of the inner layer is placed further forwards than the boundary between the shoulder portion and the main body portion. | 2013-01-10 |
20130009536 | SPARK PLUG OF INTERNAL COMBUSTION ENGINE - A spark plug has a cylindrical housing case, a cylindrical glass insulator, a center electrode, and an earth electrode fixed to the cylindrical housing case. The earth electrode has a projected part which is projected toward the center electrode. The projected part has a facing surface which faces the center electrode and is most close to the center electrode in a spark discharge gap. This gap is formed between the center electrode and the earth electrode. The facing surface is covered with a plating layer. A base material, with which the earth electrode is made, is exposed on a side surface of the projected part around the facing surface of the projected part. The base material of the earth electrode is made of Ni alloy containing not less than 90 wt % Ni, and preferably, Ni within a range of 90 wt % to 98 wt %. | 2013-01-10 |
20130009537 | IGNITER - An igniter for an internal combustion engine includes a center electrode, an insulator disposed about the center electrode, and a ground shield or a threaded portion disposed about the insulator, wherein the insulator includes a tip portion extending past an end portion of the ground shield and a tip portion of the center electrode extending through and away from the tip portion of the insulator. The igniter further includes a cap secured to the center electrode, wherein the cap extends past and covers a distal end of the tip portion of the center electrode and a distal end of the tip portion of the insulator. A spark gap is disposed between a peripheral edge of the cap and the end portion of the ground shield or threaded portion wherein the peripheral edge of the cap is spaced away from a surface of the tip portion of the insulator. | 2013-01-10 |
20130009538 | SPARK PLUG - A spark plug ( | 2013-01-10 |
20130009539 | SPARK IGNITION DEVICE AND GROUND ELECTRODE THEREFOR AND METHODS OF CONSTRUCTION THEREOF - A spark ignition device, ground electrode therefor, and methods of construction thereof are provided. The spark ignition device includes a generally annular ceramic insulator with a metal shell surrounding at least a portion of the ceramic insulator. A center electrode is received at least in part in the ceramic insulator and a ground electrode extends from the shell to a free end portion. A firing tip is attached adjacent the free end portion of the ground electrode to provide a spark gap between the center electrode and the firing tip. The free end portion is at least partially bounded by at least one “as laser cut” peripheral side extending adjacent the firing tip. | 2013-01-10 |
20130009540 | ELECTRON BEAM EMITTER - An exit window for an electron beam emitter through which electrons pass in an electron beam includes a structural foil for metal to metal bonding with the electron beam emitter. The structural foil has a central opening formed therethrough. A window layer of high thermal conductivity extends over the central opening of the structural foil and provides a high thermal conductivity region through which the electrons can pass. | 2013-01-10 |
20130009541 | LED LIGHTING DEVICE HAVING A PHOSPHOR COMPOSITION - There is herein described a phosphor composition for converting the light emitted from LED dies. The phosphor composition has an emission dominant wavelength responsive to an excitation dominant wavelength. The phosphor composition includes a first phosphor, a second phosphor and a third phosphor. The phosphor composition has a first weight ratio of the first phosphor and the second phosphor, and a second weight ratio of the second phosphor and the third phosphor. The first and second weight ratios are arranged so that the emission dominant wavelength increases as the excitation dominant wavelength increases. | 2013-01-10 |
20130009542 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE ORGANIC LIGHT-EMITTING DISPLAY APPARATUS - An organic light-emitting display apparatus includes a substrate; a first electrode on the substrate; a particle unit including a plurality of particles that are separate from each other on a top surface of the first electrode; an intermediate layer on the first electrode and the particle unit and including an organic emission layer; and a second electrode on the intermediate layer. | 2013-01-10 |
20130009543 | HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - Provided is a novel heterocyclic compound which can be used as a host material for dispersing a light-emitting material in a light-emitting layer of a light-emitting element. Further provided is a light-emitting element which is driven at a low voltage and has high current efficiency. By including the light-emitting element, a light-emitting device, an electronic device, and a lighting device each with reduced power consumption are provided. The light-emitting element contains a compound in which a dibenzo[f,h]quinoline ring and a hole-transport skeleton are bonded through an arylene group. The light-emitting device, the electronic device, and the lighting device each including the light-emitting element are provided. The light-emitting element contains a heterocyclic compound having a structure represented by the following general formula (G1). | 2013-01-10 |
20130009544 | ELECTRONIC ARTICLES FOR DISPLAYS AND METHODS OF MAKING SAME - Electronic articles such as, for example, electroluminescent lamps useful for displays and method of making the same are provided. The electronic articles include a substrate, a conductive element adjacent to the substrate, a high dielectric composite adjacent to the conductive element and an electrically-active layer adjacent to at least a portion of the high dielectric composite. The high dielectric composite includes a polymeric binder and from 1 to 80 volume percent of filler retained in the binder. The filler comprises particles that include an electrically-conducting layer and an insulating layer substantially surrounding the electrically-conducting layer. In some embodiments the binder includes a pressure-sensitive adhesive and the composite has adhesive properties. | 2013-01-10 |
20130009545 | SYNCHRONIZED AND SHORTENED MASTER-SLAVE RF PULSING IN A PLASMA PROCESSING CHAMBER - Plasma processing apparatuses and techniques for processing substrates, which include the use of synchronized RF pulsing of a first RF signal and a delayed-and-shortened second RF signal. The first RF signal may be the primary plasma-generating RF signal and the second RF signal may be the RF bias signal or vice versa. Alternatively or additionally, the first RF signal may be the high frequency RF signal and the second RF signal may be the lower frequency RF signal. Either the first RF signal or the second RF signal may act as the master, with the other acting as the slave signal. Alternatively, an external circuit may be employed as a master to control both the first RF signal and the second RF signal as slave signals. Track-and-hold techniques and circuits are provided to ensure accurate measurement for process control and other purposes. | 2013-01-10 |
20130009546 | LIGHT EMITTING DIODE (LED) LIGHTING FIXTURE - A high power lighting fixture which includes a first multiple of first light emitting diodes (LEDs) mounted and series connected to form a first serial string of LEDs on a first circuit board. A second multiple of second light emitting diodes (LEDs) mounted and series connected to form a second serial string of LEDs on a second circuit board. Mating circuit board connectors are mounted on the first and second circuit boards. The first and second LEDs, the number of first and second LEDs and the current supplied when operating the first and second LEDs are selected so that the lighting fixture is operable at a minimum electrical power rating of 100 Watts. A control signal is received which determines current division between the first and second LEDs. | 2013-01-10 |
20130009547 | LED DRIVING CIRCUIT WITH OPEN-CIRCUIT PROTECTION - An LED driving circuit with open-circuit protection is disclosed. The LED driving circuit pulls down an operation voltage supplied to a converting controller of the LED driving circuit when a voltage across an LED module of the LED driving circuit is too high, so as to stop the converting controller operating and further latch the converting controller at the protection state until that the converting controller is restarted or the condition of the voltage supplied to the LED module being too high is solved. | 2013-01-10 |
20130009548 | LIGHTING APPARATUS FOR FLUORESCENT TUBE AND DRIVING METHOD THEREFOR - A lighting apparatus for a fluorescent tube and a driving method thereof are provided. The lighting apparatus includes a fluorescent tube, an open-loop protection unit and a driving device. The driving device includes an inverter and a power unit. The open-loop protection unit detects and determines an open-loop situation of two nodes of the fluorescent tube to produce an open-loop protection signal. The inverter receives a power voltage to light the fluorescent tube with a dual high-voltage method according to a trigger signal. The power unit coupled to the open-loop protection unit and the inverter provides the power voltage and determines whether to turn off the inverter according to the open-loop protection signal. When the open-loop situation of the fluorescent tube is occurred or driving voltage of the fluorescent tube is greater than a rated operating voltage, the inverter is turned off immediately to avoid components from overheating or burning. | 2013-01-10 |
20130009549 | Method of Imposing a Dynamic Color Scheme on Light of a Lighting Unit - The invention provides a method of imposing a dynamic color scheme on light ( | 2013-01-10 |
20130009550 | Compensation Circuit for Keeping Luminance Intensity of Diode - A compensation circuit for keeping luminance intensity of a diode. The compensation circuit comprises a stabilization unit, a first transistor, a second transistor, a third transistor, a fourth transistor and an organic light emitting diode (OLED). The stabilization unit comprises a photodiode and a compensation capacitor. The second transistor is used to control the input time of data. In the operation of the OLED, the third transistor discharges or charges a node of the stabilization unit continuously to keep a voltage equal to VSS or VDD, so as to maintain the luminance intensity of the OLED. | 2013-01-10 |
20130009551 | Luminance Control for Illumination Devices - An illumination device is provided having one or more illumination LEDs configured to provide illumination for the device. Along with the illumination LED is a reference LED. The illumination LED provide illumination during normal operation of the device, whereas the reference LED provides a reference illumination, but does not provide illumination during normal operation. A light detector can detect light from the illumination LED and the reference LED, and control circuitry can be used to compare light detected from the reference LED and the illumination LED to adjust a brightness for the device. The light detector can comprise a photo-detector or can comprise an LED, such as one of the illumination LEDs if more than one illumination LED is utilized. A method is also provided for controlling brightness of an illumination device. | 2013-01-10 |
20130009552 | MOVABLE ILLUMINANCE SENSORS FOR FIXTURE LIGHT SOURCES - A lighting system including fixture lamps, e.g., ceiling mounted, and movable light sources, e.g., task lamps. The task lamps include illuminance sensors arranged to detect ambient light including light emitted by one or more fixture lamps and available daylight. Control data is generated based at least in part on the illuminance data. The resulting control data is transmitted from the task lamp to a fixture lamp and a window system so that it can be used to control the amount of light emitted by the fixture lamp and amount of daylight transmitted through the window system. This arrangement allows daylight harvesting while ensuring that the amount of light provided to workspaces (at which task lamps are located) is satisfactory. | 2013-01-10 |
20130009553 | ILLUMINATION SYSTEM - An illumination system includes multiple light emitting devices arranged in an area so as to be spaced apart from each other. Each light emitting device includes multiple light emitting diode arrays each of which has one light emitting diode or a plurality of light emitting diodes connected in series. The numbers of the light emitting diodes included in each light emitting diode arrays differs from each other. A controller is configured to establish one or more groups each including one or more light emitting devices and adjust an illumination state of each light emitting device by controlling the driving state of the one or more light emitting diode arrays included in each light emitting device. The controller may select the number of light emitting devices included in each group based on an external condition. | 2013-01-10 |
20130009554 | Light Programmable Apparatus with Light Programmable Lamp, Setting Device, and Main Structure - The invention relates to a light programmable apparatus comprising a light programmable lamp, a setting device and a main structure. The light programmable lamp is selectively electrically connected to the setting device for retrieving a light property setting such as intensity, saturation or color from the setting device. The light programmable lamp comprises: a programmable unit for retrieving and storing the light property setting while the light programmable lamp is selectively electrically connected to the setting device; and a LED module, electrically connected to the programmable unit, for emitting light corresponding to the light property setting. | 2013-01-10 |
20130009555 | OBJECT DETECTION DEVICE AND ILLUMINATION SYSTEM PROVIDED THEREWITH - An object detection device comprises an active sensor, an amplifying circuit configured to divide and amplify a sensor signal outputted from said active sensor with respect to each a plurality of frequency bands through each amplifier, and a determining unit determining the presence or absence of a detection target object by comparing an output of said amplifying circuit with a predetermined threshold value. A noise determining unit controls a switching circuit so as to turn off a switch inserted between said determining unit and an amplifier having a band pass including a noise of a particular frequency, when determining that the noise of the particular frequency is produced constantly by using an analysis result outputted from a frequency analyzer detecting intensity of each frequency of the sensor signal. | 2013-01-10 |
20130009556 | Electronic Circuits and Techniques for Maintaining a Consistent Power Delivered to a Load - Circuits and methods used therein provide an adjustable average current through a load in accordance with a pulse width modulated (PWM) signal. A condition detection circuit is configured to identify a condition of the electronic circuit and to generate a condition signal indicative of the condition. A current extension circuit is coupled receive the condition signal and coupled to receive the PWM signal. The current extension circuit is configured to generate, at the output node of the current extension circuit, an extended PWM signal having a first state and a second state. The first state of the extended PWM signal longer in time than a first state of the PWM signal by an amount related to a value or a state of the condition signal. Current pulses through the load are extended to be longer in accordance with the extended PWM signal. | 2013-01-10 |
20130009557 | Electronic Circuits and Techniques for Improving a Short Duty Cycle Behavior of a DC-DC Converter Driving a Load - An electronic circuit, referred to as an on-time extension circuit herein, provides an ability to adjust a power delivered to a load by pulsing a predetermined current to the load. The on time of the a DC-DC converter used to provide the power iS extended to be longer than the on time of the current pulse when the on time of the current pulses becomes very short. | 2013-01-10 |
20130009558 | BACKLIGHT UNIT - There is provided a backlight unit (BLU). The BLU may include: a plurality of LED modules, each LED module including a plurality of LEDs; and one or more driving drivers controlling brightness of the plurality of LEDs included in each of the plurality of LED modules, wherein at least two LED modules among the plurality of LED modules are commonly connected to one of the driving drivers in parallel. | 2013-01-10 |
20130009559 | DRIVING CURRENT GENERATION CIRCUIT, LED POWER SUPPLY MODULE AND LED LAMP - A driving current generation circuit includes a semiconductor device configured to operate with a variable voltage as a reference voltage, a driving current generator configured to generate a driving current for driving an LED (Light Emitting Diode) based on an instruction received from the semiconductor device, and a dimming voltage converter configured to generate a second dimming voltage set based on the variable voltage from a first dimming voltage set based on a ground voltage, wherein the semiconductor device performs a driving control of the driving current generator based on the second dimming voltage. | 2013-01-10 |
20130009560 | ILLUMINATION LIGHT CONTROL APPARATUS AND LED ILLUMINATION SYSTEM - An LED illumination system comprises a light control apparatus, and an LED illumination instrument including first and second LEDs. The light control apparatus includes: a first control unit determining a total amount of average currents to be supplied to the first and the second LEDs at every predetermined cycle depending on an operation amount of a first operation unit; a second control unit determining a ratio between the average currents to be supplied to the first and second LEDs respectively at the every predetermined cycle depending on an operation amount of a second operation unit; and a supply unit generating currents having the total amount of the average currents and the ratio between the average currents determined by the first and second control units at the every predetermined cycle by using a DC power source and supplying the currents to the LED illumination instrument. | 2013-01-10 |
20130009561 | CIRCUITS FOR SENSING CURRENT LEVELS WITHIN A LIGHTING APPARATUS INCORPORATING A VOLTAGE CONVERTER - Circuits for sensing current levels within an apparatus are disclosed. In specific cases, a constant voltage power supply is used to power an LED lighting apparatus in which there are uncertainties within the forward voltages of the LEDs, which in turn creates uncertainty with respect to the current level flowing through the LEDs. To manage these uncertainties, the current flowing through the LEDs is measured by determining a voltage level across a known resistor and calculating the current level. To prevent the known resistor from causing a significant reduction in the efficiency of the overall light engine, the circuit includes one or more transistors in parallel with the known resistor to reduce the effective resistance in the LED circuit during times that the current is not being sensed. | 2013-01-10 |
20130009562 | METHOD AND DEVICE FOR DRIVING A GAS DISCHARGE LAMP - A method for operating a fluorescent lamp ( | 2013-01-10 |
20130009563 | RESONANCE CIRCUITRY FOR A FIELD EMISSION LIGHTING ARRANGEMENT - A field emission lighting arrangement of at least one embodiment includes a field emission light source including an anode and a cathode and having an inherent predetermined capacitance; an inductor having a predetermined inductance and connected to at least one of the anode and the cathode of the field emission light source; and a power supply connected to the field emission light source and the inductor and configured to provide a drive signal for powering the field emission light source, the drive signal including a first frequency component having a first frequency selected to be within a frequency range, based on the predetermined capacitance and the predetermined inductance, corresponding to the half power width at resonance of the field emission lighting arrangement. At least one embodiment results in lower power consumption as well as an increase in light output of the field emission lighting arrangement. | 2013-01-10 |
20130009564 | WHITE LIGHT EMITTING APPARATUS AND LINE ILLUMINATOR USING THE SAME IN IMAGE READING APPARATUS - A white light emitting apparatus includes a light source section in which a first white LED that emits white light whose chromaticity deviates to a blue side from a predetermined white region of a CIE chromaticity diagram and a second white LED that emits white light whose chromaticity deviates to a yellow side from the predetermined white region are adjacently disposed so as to emit light with optical axes in substantially the same direction, and a current regulator that independently drives the blue LED chip in the first and second white LEDs, respectively. A color mixture of lights emitted from the first and second white LEDs is adjusted to a chromaticity of the predetermined white region using the current regulator. | 2013-01-10 |
20130009565 | ELECTRONIC BALLAST FOR PARALLEL LAMP OPERATION WITH PROGRAM START - An electronic ballast for parallel lamp operation with program start including an electronic ballast for fluorescent lamps operably connected in parallel, each of the fluorescent lamps having lamp filaments. The electronic ballast includes a current fed self oscillating inverter ( | 2013-01-10 |
20130009566 | BOOSTER CIRCUIT AND DISPLAY DEVICE - A display device includes a display panel having scan lines, and a booster circuit configured to generate an output voltage and to supply the output voltage as power source to the display panel. The booster circuit includes a charge pump and a feedback circuit section configured to control a booster operation of the charge pump depending on the output voltage. A mode of the booster operation includes a charge mode that charges the output capacitor and a discharge mode that discharges the output capacitor. The mode is switched depending on the output voltage. The feedback circuit section includes a booster operation control section configured to secure a period during which the mode is not switched between the charge mode and the discharge mode in accordance with an external synchronizing signal. The period includes a timing at which an active scan line is switched among the plurality of scan lines. | 2013-01-10 |
20130009567 | PHOSPHOR-CENTRIC CONTROL OF COLOR CHARACTERISTIC OF WHITE LIGHT - Lighting systems and devices offer dynamic control or tuning of a color characteristic, e.g. color temperature, of white light. The exemplary lighting systems and devices are used for general lighting applications that utilize solid state sources to pump remotely deployed phosphors. Two or more phosphors emit visible light of different visible spectra, and these spectra are somewhat broad, e.g. pastel, so that combinations thereof can approach white light temperatures including points along the black body curve. Independent adjustment of the intensities of electromagnetic energy emitted by the solid state sources adjusts levels of excitations of the phosphors, in order to control a color characteristic of the visible white light output of the lighting system or device. | 2013-01-10 |
20130009568 | HYBRID MULTI-OUTPUT POWER SUPPLY AND REGULATION METHOD THEREOF - The present invention relates to a hybrid multi-output power supply and regulation method thereof. In one embodiment, a power supply includes: a driving circuit that generates an error signal based on an expected driving voltage, the expected driving voltage being determined by an LED load driving current, and where the driving circuit regulates the driving current to be substantially constant and consistent with an expected driving current; a first stage voltage regulator receiving an input voltage and the error signal, and generating a first regulation voltage consistent with the expected driving voltage, where the first regulation voltage supplies power to the driving circuit, and provides driving voltage for the LED load, and where the first regulation voltage provides sufficient expected driving current; and a second stage voltage regulator that receives the first regulation voltage, and generates a substantially constant second regulation voltage to supply power to a first load. | 2013-01-10 |
20130009569 | Method of controlling an outdoor lighting system, a computer program product, a controlling device and an outdoor lighting system | 2013-01-10 |
20130009570 | METAL HALIDE LAMPS WITH FAST RUN-UP AND METHODS OF OPERATING THE SAME - The present disclosure describes metal halide lamps having a discharge vessel, a discharge space, and at least one electrode extending into the discharge vessel in a sealed fashion so as to be in contact with the discharge space. A fill gas, at least one fill material, and optionally at least one volatile material are present in the discharge space. In some cases, the lamps can exhibit at least one of reduced run-up time, increased initial light output, and long life, while remaining useful for general lighting applications. Also described are methods for operating such metal halide lamps. | 2013-01-10 |
20130009571 | COMPACT, COLD, SUPERCONDUCTING ISOCHRONOUS CYCLOTRON - A compact, cold, superconducting isochronous cyclotron can include at least two superconducting coils on opposite sides of a median acceleration plane. A magnetic yoke surrounds the coils and a portion of a beam chamber in which ions are accelerated. A cryogenic refrigerator is thermally coupled both with the superconducting coils and with the magnetic yoke. The superconducting isochronous cyclotron also includes sector pole tips that provide strong focusing; the sector pole tips can have a spiral configuration and can be formed of a rare earth magnet. The sector pole tips can also be separated from the rest of the yoke by a non-magnetic material. In other embodiments, the sector pole tips can include a superconducting material. The spiral pole tips can also include cut-outs on a back side of the sector pole tips remote from the median acceleration plane. | 2013-01-10 |
20130009572 | APPARATUS FOR CONTROLLING SPEED IN INDUCTION MOTOR - Provided is an apparatus for controlling speed in induction motor in which tension command and friction loss compensation are used to calculate a torque limit relative to an output of a speed controller, which is then used to limit the speed of the induction motor, whereby a tension sensor and a position sensor are not used in the continuous processing line to improve performance of the vector control type induction motor. | 2013-01-10 |
20130009573 | LOCK PROTECTION AND STANDBY MODE CONTROL CIRCUIT OF MOTOR DRIVING APPARATUS - A motor driving apparatus including a lock protection unit, a standby mode control unit, and a motor control circuit is provided. The lock protection unit receives a motor speed signal representing the rotation of the motor and generates a lock signal accordingly. The standby mode control unit receives a PWM signal and the lock signal and generates a standby mode control signal accordingly. The lock protection unit decides whether to stop generating the lock signal or not accordingly to the standby mode control signal. The motor control circuit controls the rotation of the motor according to the PWM signal and changes the operation mode according to the standby mode control signal and the lock signal. | 2013-01-10 |
20130009574 | APPARATUS FOR OPERATING INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR - Provided is an apparatus for operating interior permanent magnet synchronous motor in a system including a detector measuring a position and a speed of a rotor of an IPMSM, the apparatus including an output unit generating and outputting a current command driving a MTPA (Maximum Torque Per Ampere) based on the command torque, a correction unit correcting the current command outputted by the output unit, a feedback unit transmitting over-modulated voltage information to the correction unit, a control unit controlling the current command to output a voltage, a first limit unit limiting an output of the control unit using a maximum voltage synthesizable by an inverter unit, and the inverter unit applying a 3-phase voltage command for tracking a command torque to the IPMSM using an output of the first limit unit. | 2013-01-10 |
20130009575 | APPARATUS FOR OPERATING INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR - Provided is an apparatus for operating interior permanent magnet synchronous motor by receiving a first current command of a flux weakening control region I in a system including a detector measuring a position and a speed of a rotor of an IPMSM, the apparatus including a feedback unit transmitting over-modulated voltage information to a correction unit, the correction unit using the rotor speed and the over-modulated voltage information to correct the first current command to a second current command of a flux weakening control region II, a control unit controlling the second current command to output a voltage, a first limit unit limiting an output of the control unit to a maximum voltage synthesizable by an inverter unit, and the inverter unit applying a 3-phase voltage command for following a command torque to the IPMSM using an output of a voltage limit unit. | 2013-01-10 |
20130009576 | MOTOR CONTROLLER HAVING ENERGY STORAGE UNIT - A motor controller includes: a converter circuit for converting AC power to DC power; an inverter circuit connected to a DC side of the converter circuit and converting DC power to AC power for driving a motor or converting AC power regenerated from the motor to DC power; an energy storage unit connected to the DC side of the converter circuit and the inverter circuit and storing or outputting DC power; and a control unit controlling amount of DC power to be stored or output in/from the energy storage unit on the basis of a motor operation instruction instructing operation of the motor. | 2013-01-10 |
20130009577 | SYSTEM FOR CONTROLLING A MOTOR - A system for controlling a motor is provided. The system for controlling the motor includes a sensor for sensing position information of a rotor of the motor, a processor for receiving the sensed signal from the sensor and estimating an electrical angle on the basis of the sensed signal, and a control signal generating module for generating a control signal used to control the operation of the motor based on the electrical angle. The system can obtain the necessary control signal for controlling the motor only by one sensor, thereby reducing the complexity of installation of the sensors in the motor and also saving the cost. | 2013-01-10 |
20130009578 | ELECTRONIC CIRCUIT AND METHOD GENERATING ELECTRIC MOTOR DRIVE SIGNALS HAVING PHASE ADVANCES IN ACCORDANCE WITH A USER SELECTED RELATIONSHIP BETWEEN ROTATIONAL SPEED OF AN ELECTRIC MOTOR AND THE PHASE ADVANCES - An electronic circuit and an associated method used to drive an electric motor provide a user selectable relationship between rotational speed of the electric motor and phase advances of signals used to drive the electric motor. By selecting the relationship, efficiency of the electric motor drive can be improved. | 2013-01-10 |
20130009579 | Control of Electrical Machines - In an electrical machine which has time-varying or position-varying disturbances in its output, signals representing the position and values of machine-related parameters are used to solve a model of the machine to calculate the phase currents which are required to minimise the disturbances. The model is able to provide solutions in the presence of limitations of some of the operating conditions of the machine, for example the supply voltage or the error in the signal representing the position. | 2013-01-10 |
20130009580 | METHOD AND DEVICE FOR CONTROLLING A POLYPHASE ELECTRICAL MACHINE - A polyphase electrical machine controlled by at least two parallel inverters, each including a number of branches equal to a number of phases of the machine and controlled by PWM. When detecting an inverter branch is faulty, the faulty branch is isolated and the phase in question is powered by each corresponding other inverter branch. The PWM is modified to make power switches of each other branch conductive in succession, without switching while absolute value of the current of the phase in question is greater than or equal to a threshold of 80% to 120% of (n−1)I | 2013-01-10 |
20130009581 | Motor Converter Circuit for an Electric Drive Motor and Electric Drive Device Having Such a Motor Converter Circuit - An electric drive device ( | 2013-01-10 |
20130009582 | SINGLE-PHASE BRUSHLESS MOTOR DRIVE CIRCUIT - A driving circuit for a single-phase-brushless motor, includes: a driving-signal-generating circuit to generate a driving signal for supplying, to a driving coil of the single-phase-brushless motor, first- and second-driving currents, alternately with a de-energized period therebetween during which neither of the first or the second driving current is supplied to the driving coil; an output circuit to supply the first or the second driving current to the driving coil in response to the driving signal; and a zero-cross detecting circuit to detect a zero cross of an induced voltage, generated across the driving coil, during the de-energized period, wherein the driving-signal-generating circuit determines a length of a subsequent energized period based on a driving cycle from a start of an energized period, during which the output circuit supplies the first or the second driving current to the driving coil, to a time when the zero-cross-detecting circuit detects the zero cross. | 2013-01-10 |
20130009583 | DEMAGNETIZATION DETECTION DEVICE AND DEMAGNETIZATION DETECTION METHOD THEREOF - A demagnetization detection device and a demagnetization detection method thereof are provided. The demagnetization detection device is for use in a power control unit which is electrically connected to a testing permanent magnet motor. The power control unit is electrically connected to a direct current power source. The demagnetization detection device is configured to detect a testing voltage value and a testing current value of the direct current power source, and to compute a testing power value of the direct current power source according to the testing voltage value and the testing current value. The demagnetization detection device determines the difference between the testing power value and a standard power value, and then determines whether the testing permanent magnet motor is in a demagnetization status according to the difference. | 2013-01-10 |
20130009584 | VOLTAGE REGULATED PERMANENT MAGNET MACHINE - A permanent magnet generator comprises a stator core, a plurality of windings situated on the stator core, and a plurality of stress elements. The stress elements apply or relieve mechanical stress in response to control signals from a generator controller, thereby increasing or reducing voltage across the stator windings. | 2013-01-10 |
20130009585 | CONTROL APPARATUS FOR SWITCHING CIRCUIT - A control apparatus for a switching circuit includes a controller, a target-rotational-speed acquiring device, a target-torque acquiring device, and an ON-time varying device. The controller is configured to turn on a bidirectional conduction switching device provided parallel to a reverse conducting device through which a commutation current flows. The target-rotational-speed acquiring device is configured to acquire a target rotational speed of an alternating current motor. The target-torque acquiring device is configured to acquire a target torque of the alternating current motor. The ON-time varying device is configured to vary, on a basis of the target rotational speed and the target torque, an ON time period during which the bidirectional conduction switching device provided parallel to the reverse conducting device through which a commutation current flows is turned on. | 2013-01-10 |
20130009586 | INVERTER DEVICE AND ELECTRIC MOTOR DRIVE SYSTEM - An inverter device according to an embodiment includes a constant power controller. The constant power controller computes and outputs, when a value of a voltage reference to an AC motor exceeds a predetermined threshold value, a d-axis current reference correction value on the basis of the value of the voltage reference and the predetermined threshold value. Moreover, the constant power controller generates the d-axis current reference correction value by using a constant power model determined by a torque reference or a speed reference and a supplied direct voltage at an output switching timing determined based on a winding switching signal and outputs the d-axis current reference correction value for a predetermined time. | 2013-01-10 |
20130009587 | MOTOR CONTROL DEVICE - A motor control device has a motor driving unit that drives a motor, a current detecting unit that detects a motor current flowing through the motor, a control unit that compares a detected current value of the motor current detected by the current detecting unit with a target current value to obtain a deviation, to control the motor driving unit based on the deviation, and a compensation unit that sets as a current offset value a detected current value of a drift current detected by the current detecting unit in a state where the motor current is regarded as zero, to compensate the detected current value of the motor current by the current offset value. The compensation unit sets a target offset value according to the current value of the detected drift current to correct the current offset value stepwise until the current offset value reaches the target offset value. | 2013-01-10 |
20130009588 | DRIVE CONTROLLING APPARATUS AND DRIVE CONTROLLING METHOD FOR STEPPING MOTOR, DRIVE CONTROLLING SYSTEM, AND OPTICAL APPARATUS - A drive controlling apparatus includes a driver configured to apply driving signals configured to excite a plurality of windings in a stepping motor, and a controller configured to acquire a detection result of excitation currents in the windings, and to provide a feedback control over the driving signals so that a difference can be reduced between a first time difference and a second time difference, the first time difference being a period from a first reference time set in an excitation current waveform of the winding corresponding to a first drive channel to a time at which a set current value is provided, and the second time difference being a period from a second reference time corresponding to the first reference time and set in the excitation current waveform of the winding corresponding to the second drive channel to a time at which the set current value is provided. | 2013-01-10 |
20130009589 | SYSTEM AND METHOD FOR CONTROLLING FOUR-QUADRANT OPERATION OF A SWITCHED RELUCTANCE MOTOR DRIVE THROUGH A SINGLE CONTROLLABLE SWITCH - Regulating the speed of a two-phase switched reluctance machine (TPSRM) rotor includes selecting either a motoring mode or braking mode of operation for the TPSRM, regulating the rotor speed, when the motoring mode is selected, using a control signal cooperatively produced by a speed control feedback loop and a current control feedback loop; and regulating the rotor speed, when the braking mode is selected, using a control signal produced by the current control feedback loop without the cooperation of the speed control feedback loop. The speed control feedback loop uses an established speed control signal and a signal indicative of the rotor's speed to dynamically adjust a first parameter governing the control signal. The current control feedback loop uses an established current control signal and a signal indicative of the current flowing through a stator winding of the TPSRM to dynamically adjust a second parameter governing the control signal. | 2013-01-10 |
20130009590 | METHOD AND DEVICE FOR OPERATING AN ASYNCHRONOUS MOTOR WITH INCREASED EFFICIENCY - Method and device for operating an asynchronous motor having increased efficiency. According to the invention, ranges for a motor size of the asynchronous motor are specified. In addition, a value of the motor size is calculated depending on at least one measurement value of a measurement parameter during the operation of the asynchronous motor, wherein the respective calculated value of the motor size is allocated to one of the ranges. Furthermore, a control parameter is changed depending on the range to which the calculated motor parameter is allocated to provide an optimised control parameter such that the control parameter is changed beginning from a starting value specified for the respective range of the motor size until a predetermined criterion for a specific motor size is reached. Furthermore, the optimised control parameter is stored as a support point of a continuous optimal characteristic curve for the control parameter depending on the range to which the calculated motor size is allocated. | 2013-01-10 |
20130009591 | ELECTRIC PLANT WITH CAPACITY TO CHARGE ELECTRIC BATTERIES - An electric plant with a capacity to charge electric batteries is a plant for transmitting electric power including a Voltage Source Converter, an alternating voltage network connecting an alternating voltage side of the converter and a direct voltage part connected to the direct voltage side of the converter. The converter has a series connection of switching cells having each at least one energy storing capacitor. Electric batteries may be connected in parallel with the capacitor, and the charging state thereof may be influenced by controlling the switching cells of the Voltage Source Converter through a control arrangement. | 2013-01-10 |
20130009592 | AUTONOMOUS DEVICE BATTERY EXCHANGE - Various embodiments related to automatically exchanging a discharged battery for a charged battery in an autonomous device are disclosed. For example, one disclosed embodiment provides a method of operating an autonomous device, the method including autonomously moving to and operatively engaging with a battery exchange dock such that a discharged battery in the autonomous device is automatically removed from the autonomous device and placed into a charging receptacle on the battery exchange dock and a charged battery is automatically received from the battery exchange dock by the autonomous device. The method further includes autonomously disengaging from the battery exchange dock after receiving the charged battery. | 2013-01-10 |
20130009593 | CHARGER AND CHARGING APPARATUS - A reduction in breakdown voltage and mechanical deterioration of an electrode plate of a rechargeable battery are suppressed, and a charging time is shortened. | 2013-01-10 |
20130009594 | INDUCTIVE CHARGING DEVICE AND CONTROL METHOD - A charging device for a rechargeable energy store which has a first induction coil includes: a coupling surface for positioning the first energy store; a second induction coil for generating a magnetic field in the area of the coupling surface to transfer electrical energy between the first and second induction coils; and a direction control system for bringing an alignment of the field of the second induction coil in line with an alignment of the first induction coil. | 2013-01-10 |
20130009595 | DEVICES FOR RECEIVING PERIODIC CHARGING - An apparatus for an energy storage device configured to store electrical energy received from a source. The energy storage device is configured to store the electrical energy received from the source via one or more temporary circuits created through the energy storage device and the source while the energy storage device and the source are moving relative to one another. | 2013-01-10 |
20130009596 | BATTERY CHARGER CRADLE - In a battery charger cradle, a battery incorporated in a battery built-in device is charged by electric power induced to an induction coil. The cradle includes a primary coil for inducing electromotive force to the induction coil, a casing having a top plate atop of which the battery built-in device is placed, a movement mechanism for moving the primary coil along an inner surface of the top plate, and a position detection controller for detecting a position of the battery built-in device placed on the top plate and controlling the movement mechanism to bring the primary coil closer to the induction coil in the battery built-in device. When the battery built-in device is placed on the top plate, the position detection controller detects the position of the battery built-in device, and the movement mechanism moves the primary coil closer to the induction coil in the battery built-in device. | 2013-01-10 |
20130009597 | SYSTEM AND METHOD FOR USE IN CHARGING AN ELECTRICALLY POWERED VEHICLE - A method of delivering power from a power supply to an electric vehicle is described herein. The method includes receiving, by a charging station from the electric vehicle, a request to deliver power from the power supply to the electric vehicle. A signal that is indicative of a unique identifier associated with the electric vehicle is received, and the charging station determines whether the unique vehicle identifier is associated with a stolen electric vehicle, and delivers power, from the charging device to the electric vehicle, after determining the unique identifier is not associated with a stolen electric vehicle. | 2013-01-10 |
20130009598 | ELECTRIC CHARGING SYSTEM, ELECTRIC VEHICLE AND ELECTRIC CHARGER - There are provided an electric charging system, an electric vehicle and an electric charger. Upon charging a battery, power supply lines of an electric charger are connected to the power receiving lines of an electric vehicle 12. The power receiving lines have a relay. The electric charger has a voltage sensor that measures a voltage between the power supply lines. The electric charger has a voltage processing portion that applies filtering to the voltage. Upon charging when charging power is supplied from the electric controller, a filtering process with a stability-oriented first filter is applied to the voltage. Upon a relay failure diagnosis that performs a failure diagnosis of the relay based on a change in the voltage due to opening and closing of the relays, a filtering process with a second filter that has a higher responsiveness is applied to the voltage. | 2013-01-10 |
20130009599 | CHARGING CONTROL APPARATUS, CHARGING SYSTEM, AND CHARGING CONTROL METHOD - A charging control apparatus ( | 2013-01-10 |
20130009600 | ELECTRIC ENERGY STORAGE APPARATUS, VOLTAGE EQUALIZATION MODULE AND VOLTAGE EQUALIZATION METHOD - Disclosed herein are an electric energy storage apparatus, a voltage equalization module thereof, and a voltage equalization method. There is provided an electric energy storage apparatus, including: a plurality of electric energy storage cells connected in series; voltage sensing units sensing voltage charged in each of the electric energy storage cells, respectively; first bypass discharge units connected to each of the electric energy storage cells in parallel, respectively, and bypassing and discharging electric energy charged; second bypass discharge units additionally connected to each of the electric energy storage cells in parallel, respectively, and bypassing and additionally discharging electric energy; and a control unit receiving voltage information from the voltage sensing units, determining whether controlling or not and controlling operations of each of the first and second bypass discharge units so as to equalize charged voltage values of the electric energy storage cells. | 2013-01-10 |
20130009601 | BALANCING ELECTRICAL VOLTAGES OF ELECTRICAL ACCUMULATOR UNITS - A method for balancing the electrical voltages of at least two electrical accumulator units that are connected in series provides that a coil is charged by a first accumulator unit and a second accumulator unit is charged with the energy of the charged coil. Optionally, only the second accumulator unit is charged. In addition, a corresponding electrical accumulator is provided. | 2013-01-10 |
20130009602 | Temperature Controlled Parallel Balancing - A method of controlling current in a parallel battery systems includes providing at least two parallel connected batteries, each said battery having an internal resistance and dissipating heat while operating; during operation, measuring at least the temperature and current of each individual battery; and providing instructions to a temperature control system having a temperature control module coupled with each said battery for individually cooling each said battery to adjust temperature of at least one battery in order to maintain the current at a target value. | 2013-01-10 |
20130009603 | POWER SUPPLY SYSTEM - A power supply system comprises a battery which can be charged/discharged, a charging/discharging apparatus which charges/discharges the battery, and a charging/discharging power limit controller which outputs a charging/discharging power limit control signal obtained by amplifying a deviation between an output voltage command signal of the battery and a detected output voltage signal obtained by detecting an output voltage of the battery, wherein and the charging/discharging apparatus includes a charging/discharging controller which controls of charging/discharging power of the battery based on the charging/discharging power limit control signal. | 2013-01-10 |
20130009604 | USING REFERENCE ELECTRODES TO MANAGE BATTERIES FOR PORTABLE ELECTRONIC DEVICES - The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system uses a reference electrode in the battery to monitor an anode potential of an anode in the battery during charging of the battery in the portable electronic device. If the anode potential falls below an anode potential threshold, the system modifies a charging technique for the battery to extend a cycle life of the battery. For example, the system may reduce a charge current of the battery if the anode potential falls below the anode potential threshold to prevent degradation caused by a negative anode potential during charging of the battery. | 2013-01-10 |
20130009605 | CHARGING AND DISCHARGING METHOD FOR LITHIUM ION SECONDARY BATTERIES AND CHARGING AND DISCHARGING SYSTEM FOR THE SAME - A first threshold that is lower than a progressively deteriorating SOC that is an SOC in which a battery performance of the lithium ion secondary battery deteriorates when the lithium ion secondary battery is stored and a second threshold that is greater than the progressively deteriorating SOC are preset. A computer controls a switch provided between electric wires and the lithium ion secondary battery, an electric power supply source that supplies electric power necessary to charge the lithium ion secondary battery and a load that consumes electric power discharged from the lithium ion secondary battery are connected to the electric wires, such that a charging operation for the lithium ion secondary battery is continued from the first threshold to the second threshold when the lithium ion secondary battery is charged based on value of the SOC of the lithium ion secondary battery, the value of the SOC is transmitted from a monitor device that detects the value of the SOC of the lithium ion secondary battery and that controls the switch such that a discharging operation for the lithium ion secondary battery is continued from the second threshold to the first threshold when the lithium ion secondary battery is discharged. | 2013-01-10 |
20130009606 | STERILE BATTERY CONTAINMENT - An apparatus for delivering electrical power to an electrically powered medical device includes a battery, a first compartment, and a second compartment where the second compartment can hold the first compartment and the first compartment can hold the battery. A sterile space is defined between the first compartment and the second compartment. The first compartment and the battery may be selectively electrically coupled with the electrically powered medical device such that the first compartment does not compromise the sterility of the electrically powered medical device. | 2013-01-10 |
20130009607 | DETERMINATION DEVICE, DETERMINING METHOD AND DETERMINATION PROGRAM - A determination determines permission/forbiddance to charge an accumulator that obtains electrical power from a power grid network. The determination device comprises a first acquisition unit configured to acquire first information about a requested power amount requested to charge the accumulator, a second acquisition unit configured to acquire second information about an available power amount that can be provided from the power grid network, and a determination unit configured to determine permission or forbiddance with respect to the accumulator based on the first information and the second information. | 2013-01-10 |
20130009608 | RECARGEABLE BATTERY UNIT AND CHARGING METHOD - The present invention relates in particular to a battery unit with at least one battery cell and a switch unit that is designed so as to alter the internal resistance of the battery unit. | 2013-01-10 |
20130009609 | MONITORING DEVICE AND A METHOD FOR WIRELESS DATA AND POWER TRANSMISSION IN A MONITORING DEVICE - In a monitoring device including a reader and a data carrier, the data carrier includes a receiver coil ( | 2013-01-10 |
20130009610 | CONTROL SYSTEM FOR DOUBLY-FED INDUCTION MACHINE - A method and arrangement for controlling a doubly-fed induction machine by a frequency converter including a rotor side converter (INU) connected to a rotor circuit of a doubly-fed induction machine (DFIG) and having a control system with rotor flux as a feedback variable, a grid side converter (ISU) connected to an AC power network, and a direct voltage intermediate circuit (DC) connected between the rotor side converter (INU) and the grid side converter (ISU). The method includes forming a rotor flux reference (ψ | 2013-01-10 |
20130009611 | DIRECT POWER AND STATOR FLUX VECTOR CONTROL OF A GENERATOR FOR WIND ENERGY CONVERSION SYSTEM - A method for controlling a variable speed wind turbine generator is disclosed. The generator is connected to a power converter comprising switches. The generator comprises a stator and a set of terminals connected to the stator and to the switches of the power converter. The method comprises: determining a stator flux reference value corresponding to a generator power of a desired magnitude, determining an estimated stator flux value corresponding to an actual generator power, determining a difference between the determined stator flux reference value and the estimated stator flux value, and operating said switches in correspondence to the determined stator flux reference value and the estimated stator flux value to adapt at least one stator electrical quantity to obtain said desired generator power magnitude. | 2013-01-10 |
20130009612 | ENERGY EXTRACTION DEVICE WITH ELECTRICAL GENERATOR AND METHOD OF OPERATING ENERGY EXTRACTION DEVICE ELECTRICAL GENERATOR - A wind turbine generator, or other energy extraction device, has a hydraulic circuit comprising a hydraulic pump driven by a rotating shaft and a hydraulic motor driving an electricity generator. When the electricity generator is switched off, it executes one or more pumping cycles to pressurise the high pressure manifold and therefore recover angular kinetic energy from the electricity generator rotor which can later be used to reaccelerate the electricity generator rotor to the correct operating speed for an electricity grid. Overall energy efficiency is increased and the minimum operating high pressure manifold pressure may be reduced as a result. | 2013-01-10 |
20130009613 | Inductive Load Power Switching Circuits - Power switching circuits including an inductive load and a switching device are described. The switches devices can be either low-side or high-side switches. Some of the switches are transistors that are able to block voltages or prevent substantial current from flowing through the transistor when voltage is applied across the transistor. | 2013-01-10 |
20130009614 | Static Var Compensator Apparatus - A one-phase static var compensator apparatus includes a compensator string consisting of a first static var compensator connected serially to a thyristor valve. The compensator string is arranged to be connected on its first end to one phase of a transmission grid of a rated voltage exceeding 69 kV. Moreover, the thyristor valve includes a plurality of thyristors connected serially and the compensator string is arranged to be directly connected to the transmission grid. A corresponding three phase apparatus is also presented. | 2013-01-10 |
20130009615 | ARRANGEMENT AND METHOD FOR REACTIVE POWER COMPENSATION - An arrangement and a method for reactive power compensation in connection with a power transmission line. The arrangement includes at least one transformer and at least one reactive power compensator connected to the low-voltage side of the transformer and at least one adapter reactor, the adapter reactor being connected in series with the transformer so that the reactive power compensator is connected to the power transmission line via the transformer and the adapter reactor. | 2013-01-10 |
20130009616 | AUTO-SELECTING HOLDING CURRENT CIRCUIT - An auto-selecting holding current circuit is applicable to a converter. A primary side of the converter has a Triode for Alternating Current (TRIAC) and a bleeder circuit. The auto-selecting holding current circuit includes a first sensor module, a second sensor module and a reference voltage selecting circuit. The first sensor module detects an input current drop time or an input voltage drop time to output a sense signal. The second sensor module receives a current detector signal and outputs a critical current signal to detect a holding-current value range of the TRIAC. The reference voltage selecting circuit outputs a reference current signal to the bleeder circuit, and the reference current signal corresponds to a holding-current value of the TRIAC. Therefore, the bleeder circuit maintains normal operation of the TRIACs with different holding-current values. | 2013-01-10 |
20130009617 | CONTROL CIRCUITS FOR SWITCHING POWER CONVERTERS AND ASSOCIATED METHODS - The present application discloses a control circuit of a switching power converter, wherein the switching power converter comprises a power switch, and is configured to convert an input voltage into an output voltage, the control circuit comprises: a first time generating circuit configured to generate a first time signal; a phase lock circuit configured to generate a second time signal; and a switching signal generating circuit configured to generate a switching signal to control the ON and OFF switching of the power switch. The phase lock circuit generates the second time signal in accordance with the frequency difference between the switching signal and a reference clock signal, so as to get the frequency of the switching signal to be substantially equal to the frequency of the reference clock signal. | 2013-01-10 |
20130009618 | VOLTAGE CONVERTER - The present invention relates to a voltage converter, which uses an inductor coupled between a power supply and a reference voltage for providing a supply voltage. A plurality of output capacitors are coupled to both sides of the inductor, respectively, and receive the supply voltage for producing a positive voltage and a negative voltage. A plurality of output switches are coupled to both sides of the inductor, respectively, and control the inductor to charge the plurality of output capacitors. A feedback control circuit produces a control signal according to the positive and negative voltages for controlling the plurality of output switches. Thereby, the present invention can produce positive and negative voltage by means of the inductor. Accordingly, the voltage converter according to the present invention avoids usage of multiple inductors and capacitors in producing voltages with different levels, and thus reducing the circuit area as well as the manufacturing cost. | 2013-01-10 |
20130009619 | Multi-Phase Power System with Redundancy - An integrated circuit device for delivering power to a load includes a controller circuit, a cascade circuit, and a power delivery circuit. The controller circuit generates a plurality of control signals. The cascade circuit receives the control signals from the controller circuit and sequentially outputs the control signals onto a cascade bus. The power delivery circuit receives the control signals from the controller circuit and delivers an amount of current to the load, in response to one of the control signals. | 2013-01-10 |
20130009620 | SYSTEM INCLUDING AN OFFSET VOLTAGE ADJUSTED TO COMPENSATE FOR VARIATIONS IN A TRANSISTOR - A system including a first transistor, a first capacitor and a circuit. The first transistor has a first control input and is configured to regulate an output voltage. The first capacitor is coupled at one end to the first control input and at another end to a circuit reference. The circuit is configured to provide a first voltage to the first control input, where the first voltage includes an offset voltage that is referenced to the output voltage and adjusted to compensate for variations in the first transistor. | 2013-01-10 |
20130009621 | LOW OFFSET, FAST RESPONSE VOLTAGE CONTROLLED CURRENT SOURCE AND CONTROLLING METHOD THEREOF - The present invention relates to a low offset and fast response voltage controlled current source, controlling method, and a power supply thereof. In one embodiment, a voltage controlled current source can include: a clock signal generator, a first operational amplifier, an input offset eliminator, a sampling and holding circuit, and an output circuit. The input offset eliminator can receive a clock signal, an input voltage, and a feedback voltage, and can (i) store and then eliminate an input offset of the first operation amplifier, and generate an error signal in accordance with an error between the input and feedback voltages when the clock signal is active, and (ii) generate the error signal in accordance with the stored input offset and the error between the input and feedback voltages when the clock signal is inactive. | 2013-01-10 |
20130009622 | Device and Module of Triggering and Generating Temperature Coefficient Current - A device of triggering and generating temperature coefficient current for generating a temperature coefficient current includes a positive temperature coefficient current generating unit, for generating a first positive temperature coefficient current, a negative temperature coefficient current generating unit, for generating a first negative temperature coefficient current, and a triggering unit, for triggering to generate the temperature coefficient current according to a triggering temperature and a current difference between the first positive temperature coefficient current and the first negative temperature coefficient current. | 2013-01-10 |
20130009623 | FOUR-QUADRANT BOOTSTRAPPED SWITCH CIRCUIT - A bootstrapped switch circuit includes a first switch transistor to receive an input signal and a second switch transistor to provide an output signal. The sources of the switch transistors may be coupled. A voltage source may be coupled to the sources of the switch transistors and at least one of the gates of the switch transistors. The voltage source may generate a control voltage to activate at least one of the switch transistors based on a bias current. A voltage source driver may be coupled to the voltage source to generate the bias current based on a bias voltage. The bias voltage may include a first voltage approximately corresponding to an overdrive voltage of at least one of the switch transistors and a second voltage approximately corresponding to a threshold voltage of the switch transistors. | 2013-01-10 |
20130009624 | POWER SOURCE SWITCH DEVICE AND POWER SOURCE SYSTEM PROVIDED WITH SAME - Provided are semiconductor elements | 2013-01-10 |
20130009625 | TRANSFORMER - The object is to provide a transformer capable of outputting more efficiently than conventional transformers the electric power outputted in a secondary output in response to a primary input. | 2013-01-10 |
20130009626 | CURRENT MEASUREMENT SYSTEM - A measurement system for measuring an input electrical current (Ics) from a current source (CS) and generating a current measurement signal, comprising a current measuring circuit ( | 2013-01-10 |
20130009627 | PHASE DETECTOR - A phase detector ( | 2013-01-10 |
20130009628 | Integral Value Measuring Circuit - An integral value measuring circuit includes an operational amplifier and a capacitor connected between input and output sides thereof, an electric potential of an output terminal where a predetermined resistance element connected to an output side of the operational amplifier is being zero, positive and negative DC voltage generating circuits which comprise positive and negative power sources, respectively, at the output side of the operational amplifier, the positive and negative DC voltage generating circuits and being connected to positive and negative power terminals, respectively, of the operational amplifier through switches, and a connection line between the negative power terminal and one switch and a connection line between the positive power terminal and another switch being connected to the positive and negative power terminals, respectively, of the operational amplifier through cross resistance elements having resistance values negligible compared to a leakage resistance value of the switches. | 2013-01-10 |
20130009629 | DETECTION APPARATUS FOR CIRCUIT BOARD - A detection apparatus comprises a first signal transmission line, a second signal transmission line, a first conducting member, a second conducting member and a mounting bracket. A first terminal of the first signal transmission line is electrically connected to a circuit board for receiving first output signals. A second terminal of the first signal transmission line is electrically connected to a first terminal of the first conducting member. A first terminal of the second signal transmission line is electrically connected to the circuit board for receiving second output signals. A second terminal of the second signal transmission line is electrically connected to a first terminal of the second conducting member. The first conducting member and the second conducting member are mounted on the mounting bracket. Each of a second terminal of the first conducting member and a second terminal of the second conducting member extends out of the mounting bracket. | 2013-01-10 |
20130009630 | MAGNETIC DETECTION DEVICE, MAGNETIC SENSOR INCLUDING THE SAME, AND METHOD FOR MANUFACTURING MAGNETIC DETECTION DEVICE - A magnetic detection device includes a layered film including a self-pinned magnetic layer, a free magnetic layer, a nonmagnetic material layer disposed between the pinned magnetic layer and the free magnetic layer, and a top capping layer. The pinned magnetic layer includes a first magnetic layer, a second magnetic layer, and a nonmagnetic intermediate layer disposed therebetween. A first magnetization of the first magnetic layer is pinned in antiparallel with a second magnetization of the second magnetic layer. The capping layer is formed of tantalum, and an as-deposited thickness of the capping layer is 55 Å or more. | 2013-01-10 |
20130009631 | VARIABLE RELUCTANCE TYPE ANGLE SENSOR - A variable reluctance angle sensor includes a stator, a rotor, and a computation section. The stator includes a core member having teeth, which are arranged in a circumferential direction, and excitation coils, which are respectively wound about the teeth such that magnetic poles of the teeth have different polarities alternately in the circumferential direction. An input voltage is supplied to the excitation coils. The rotor radially faces the teeth of the stator. The rotor has a shape such that gap permeance with respect to the stator changes in a sinusoidal fashion in accordance with the rotational angle of the rotor. The computation section obtains output voltages of two or more phases having different phases based on the voltages of the excitation coils, and detects the rotational angle of the rotor based on the output voltages. | 2013-01-10 |
20130009632 | EDDY CURRENT MEASURING SENSOR AND INSPECTION METHOD USING THIS EDDY CURRENT MEASURING SENSOR - An eddy current measuring probe sensor has an exciting portion and a detecting portion. The exciting portion includes a primary exciting portion that includes a main core formed of a cylindrical magnetic body and a main coil that is a solenoid coil wound in a circumferential direction around the main core, and a plurality of secondary exciting portions that include sub-cores formed of cylindrical magnetic bodies that are arranged around the primary exciting portion in a manner such that an axial direction of each of the sub-cores is the same as an axial direction of the main core. The plurality of secondary exciting portions are configured to be able to change the position of each sub-core independently in the axial direction relative to the primary exciting portion | 2013-01-10 |
20130009633 | Method of Measuring Dimensionless Coupling Constant of Magnetic Structure - In A method for measuring a dimensionless coupling constant of a magnetic structure includes the following steps. A step of applying an external vertical magnetic field is performed for enabling magnetic moments of a RE-TM (Rare Earth-Transition metal) alloy magnetic layer of the magnetic structure to be vertical and saturated. A step of measuring a compensation temperature is performed when the sum of the magnetization of the RE-TM alloy magnetic layer is zero. A step of applying an external parallel magnetic field to the RE-TM alloy magnetic layer is performed. A step of adjusting the temperature of the magnetic structure to the compensation temperature and measuring a hysteresis loop of the magnetic structure under the external parallel magnetic field is performed, wherein the inverse of the slope of hysteresis loop is a dimensionless coupling constant. | 2013-01-10 |
20130009634 | APPARATUS AND METHOD FOR MEASURING DEPOSITS INSIDE A TUBE - The present invention provides a probe apparatus and an associated method for measuring a magnetite deposit thickness, which apparatus and method is independent of the porosity and magnetic permeability of the magnetite deposit. The probe apparatus of this invention is an axial scanning and inside surface-following probe that can accurately and reliably measure the inside diameter of a tube. The probe apparatus of the present invention optionally comprises two modules: the first module is the surface-following module and the second module is a conventional eddy current probe. | 2013-01-10 |