24th week of 2009 patent applcation highlights part 18 |
Patent application number | Title | Published |
20090146575 | Light Emitting Diode (LED) Driving Device - A light emitting diode (LED) driving device includes a power factor correction (PFC) circuit, a bridge switch circuit, a resonant circuit, a transformer and a feedback circuit. The PFC circuit adjusts an output signal thereof based on a feedback signal. The bridge switch circuit transforms the output signal of the PFC circuit into a pulse signal. The resonant circuit resonates and outputs a sinusoidal signal to a primary-side of the transformer based on the pulse signal. The feedback circuit outputs the feedback signal to the PFC circuit in response to a primary-side current of the transformer. Therefore, an output current of the LED driving device is adjusted through modulating the feedback circuit. | 2009-06-11 |
20090146576 | METAL HALIDE LAMP INCLUDING A SOURCE OF AVAILABLE OXYGEN - A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas, optionally free mercury, a halide component which includes a rare earth halide selected from the group consisting of lanthanum halides, praseodymium halides, neodymium halides, samarium halides, cerium halides, and combinations thereof. A source of available oxygen is present in the discharge vessel. The rare earth halide is present in an amount such that, during lamp operation, in combination with the source of available oxygen, it maintains a difference in vapor phase solubility for tungsten species between a wall of the discharge vessel and at least a portion of at least one of the electrodes. | 2009-06-11 |
20090146577 | TRANSFORMER, ILLUMINATING APPARATUS USING THE SAME, AND DISPLAY APPARATUS USING THE SAME - A transformer arranged to be used for an illuminating apparatus includes a closed-magnetic-circuit core, a primary coil wounded around the closed-magnetic-circuit core, and plural secondary coils wounded around the closed-magnetic-circuit core. The plural secondary coils includ respective first ends and respective second ends. The illuminating apparatus includes plural discharge lamps. Each of the respective first ends and each of the respective second ends are arranged to be connected to discharge lamps, out of the plurality of discharge lamps, different from each other. This transformer prevents variation of lighting timings of discharge lamps, accordingly providing an illuminating apparatus and a display apparatus having little brightness variation. | 2009-06-11 |
20090146578 | Lamp-Lighting Apparatus - An economical device for lighting lamps such as discharge tubes. The lamp-lighting apparatus has an inverter transformer, a switching circuit connected with the primary winding of the inverter transformer and acting to perform switching for converting a voltage from an input power supply, a shunt transformer connected in series with the secondary winding of the inverter transformer, lamps connected in series with the shunt transformers, and a control circuit for producing a control signal to control the switching performed by the switching circuit based on the voltages at the junctions of the shunt transformer and each of the lamps without directly detecting the voltage applied to the secondary winding of the inverter transformer. The number of protective circuits can be reduced. Consequently, the cost can be reduced. | 2009-06-11 |
20090146579 | DISCHARGE-LAMP LIGHTING DEVICE AND LUMINAIRE - There is provided a discharge-lamp lighting device that, upon start-up of a high-intensity discharge lamp, alternately outputs a period A during which a starting circuit applies a high voltage to the high-intensity discharge lamp by resonance operation when a DC/AC inverter outputs a high-frequency voltage, and a period B during which the DC/AC inverter applies a low-frequency-square-wave voltage or a DC voltage to the high-intensity discharge lamp via the starting circuit. The period A for applying the high voltage by the resonance operation is set to about a time enough for a high-intensity discharge lamp in an initial aging stage to cause a dielectric breakdown, and a period C for alternately outputting the high-voltage generating period A and the period B for outputting the low-frequency-square-wave voltage or the DC voltage is set to about a time enough for a high-intensity discharge lamp in a life's last stage to cause a dielectric breakdown. | 2009-06-11 |
20090146580 | HIGH INTENSITY DISCHARGE LAMP DRIVER WITH VOLTAGE FEEDBACK CONTROLLER - Current arrangement for operating a high intensity discharge lamp or a ultra high pressure discharge lamp, comprising a DC-to-DC converter, a control circuit for controlling the output value of the DC-to-DC converter, and a commutator. The control circuit comprises two control loops, one of which controlling an absolute average value of the lamp current, the other of which controlling and minimizing small variations of the lamp current around a reference value. An adaptive control of the first and second loop controllers can be used to adjust the controllers to changing system dynamics. | 2009-06-11 |
20090146581 | GAS DISCHARGE LAMP DRIVER CIRCUIT WITH LAMP SELECTION PART - A gas discharge lamp driver circuit, comprising an inverter ( | 2009-06-11 |
20090146582 | Colour rendering in compact fluorescent lamps - Compact fluorescent lamps (CFLs) are characterized by impaired colour rendering, due to their low illumination capability near the blood-red edge of the visible spectrum. Red light output by a light emitting diode (LED) has a relatively narrow spectral distribution, and LEDs are able to produce red light with reasonable efficiency. Blending the light output of a CFL with a small amount of blood-red light emitted by one or more inexpensive LEDs improves colour rendering, while reducing the overall energy cost of operating the CFL-LED hybrid lamp. | 2009-06-11 |
20090146583 | PORTABLE HANDHELD ILLUMINATION SYSTEM - Illumination systems are described that can include one or more light sources, which can include LEDs, one or more lenses, and one or more optical fibers. A handheld, portable, and surgical intraocular illumination system is disclosed that is disposable, low-cost, and efficient. A surgeon can have direct control of turning the illuminator on and off and adjusting the intensity via a simple control ergonomically placed on the handpiece and/or voice activated control. A coupling is provided, such as through an endo-probe, which is coupled to the one or more light sources. A user input device can be included that is operable to transmit to a feedback controller a first signal based on a user-selected light intensity. The feedback controller can, in response to the first signal, transmit a second signal to the power source for altering the power provided by the power source to the illumination system. | 2009-06-11 |
20090146584 | BACKLIGHT ASSEMBLY, DISPLAY APPARATUS HAVING THE BACKLIGHT ASSEMBLY AND METHOD OF PREVENTING A CURRENT CONTROLLER OF THE BACKLIGHT ASSEMBLY FROM BEING SHUT DOWN - A backlight assembly includes a light-emitting apparatus, a multi-channel current controller and a heat distributor. The light-emitting apparatus includes a plurality of light-emitting diode (“LED”) strings. The multi-channel current controller includes a plurality of current control circuits, each of which includes an input channel electrically connected an LED string of the plurality of LED strings and which controls a magnitude of a driving current flowing through the LED string. The heat distributor is electrically connected to the input channel and the LED string, and is disposed adjacent to the input channel | 2009-06-11 |
20090146585 | Constant Power Driving-and-Controlling Method for Lighting Elements - The present invention provides a constant power driving-and-controlling method for lighting elements so as to stably drive solid lighting elements. Measuring the input power of lighting elements by a power measuring device and then controlling the input power of the lighting elements by a feedback controller to stabilize the input power of the lighting elements, the effects of environment temperature and the difference of the electrical characteristics of the lighting elements on the input power can be eliminated. | 2009-06-11 |
20090146586 | Power supply for external electrode fluorescent lamps - The present invention provides a power supply circuit for providing power for a plurality of external electrode fluorescent lamps (EEFLs) connected in parallel, comprising a controllable voltage regulator for receiving an input power signal and for providing a regulated voltage signal, an output inverter and a resonant circuit connected to receive the regulated voltage signal and for providing a resonant frequency signal, a voltage transformation stage for receiving the resonant frequency signal for transforming the resonant frequency signal to a power voltage signal capable of driving a plurality of EEFLs connected in parallel, wherein the controllable voltage regulator is connected to receive the resonant frequency signal and is responsive thereto to keep the resonant frequency signal within an acceptable operating voltage range to power the EEFLs independently of the number of EEFLs connected to receive the power voltage signal. | 2009-06-11 |
20090146587 | Completely Sealed High Efficiency Microwave Sulfur Lamp - A completely sealed microwave sulfur lamp is made possible by removing the heat generated from the magnetron and high voltage direct-current power supply via heat conducting oil, rubber and resin. An oil pump is used to circulate the heated oil to the metallic housing of the lamp for natural cooling. No forced air cooling is needed. High efficiency power supply is used to reduce the heat generated. The low ripple direct-current high voltage generated also contributes to lower heat generation at the magnetron. | 2009-06-11 |
20090146588 | BOOSTER CONVERTER CIRCUIT FOR VEHICLES - An object of the invention is to limit a current flowing in a booster converter circuit for a vehicle within a predetermined range. In the booster converter circuit for a vehicle including a battery that outputs a DC voltage; a switching unit having a switching element to be controlled to ON or OFF; an inductive element unit being connected between the battery and the switching unit and including an inductive element; a switching control unit that controls the switching element, an output voltage measuring unit that measures an output voltage of the booster converter circuit for a vehicle is provided, and the duty ratio determining device obtains a control duty ratio with respect to the switching element on the basis of a measured output voltage value so that a value of a converter current flowing through a path from the battery to the switching unit falls within a predetermined range. | 2009-06-11 |
20090146589 | Motor Control Device and Vehicle Including the Same - A current instruction generation unit generates a d-axis current instruction and a q-axis current instruction based on a torque instruction for an AC motor, using a map in which a current instruction capable of lowering noise (vibration and sound noise) (low-noise current instruction) generated from the AC motor is determined in advance for each torque of the AC motor. Then, a signal for driving an inverter is generated based on the generated d-axis current instruction and the q-axis current instruction. | 2009-06-11 |
20090146590 | CONTROLLER OF MULTI-PHASE ELECTRIC MOTOR - A controller of a multi-phase electric motor includes a drive section for driving the multi-phase electric motor; a single current detection section for detecting a current value of the multi-phase electric motor, a PWM signal generation section for generating plural PWM signals of each phase within one control period based on the current value detected by the current detection section and a carrier signal; and a phase movement section for moving a phase by a predetermined amount such that frequency in change of the PWM signal of the predetermined phase generated by the PWM signal generation section is included in a non-audible range, and outputting the PWM signal which phase is moved to the drive section; wherein the phase movement section moves the phase by a predetermined amount for all the PWM signals of the predetermined phase within one control period. | 2009-06-11 |
20090146591 | Motor controller of air conditioner - The present invention relates to a motor controller of an air conditioner, including an inverter including a plurality of switching elements and adapted to convert a DC voltage, input through switching operations of the switching elements, into an AC voltage and supply the converted voltage to a motor, a power calculation unit that calculates electric power applied to the motor, an angle calculation unit that calculates an optimal phase angle of a current command value based on the calculated electric power; and a microcomputer that outputs a switching control signal to control the switching elements of the inverter based on the optimal phase angle. | 2009-06-11 |
20090146592 | POSITION SENSORLESS CONTROLLER FOR PERMANENT MAGNET MOTOR - In a calculation for estimating axis error in a permanent magnet motor, a d-axis commanded voltage value is added to the product of three signals, which are a q-axis detected current value or commanded current value, an inductance value, and an estimated speed value, and then the resulting value is divided by the product of a commanded speed value ω | 2009-06-11 |
20090146593 | Motor controller of air conditioner - The present invention relates to a motor controller for air conditioner including a converter having at least one switching element for converter, the converter converting AC utility power into DC power by a switching operation of the switching element; an inverter having at least one switching element for inverter, the inverter converting the DC power into prescribed AC power by a switching operation of the switching element and driving a three-phase motor; a microcomputer outputting a converter switching control signal that controls the switching element for converter; and a dc terminal signal generator detecting a dc terminal voltage that is applied across an dc terminal of the converter to sequentially generate a pulse type dc terminal signal, and insulating the dc terminal from the microcomputer. The present invention may sequentially generate a dc terminal signal and simultaneously insulate the dc terminal from the microcomputer, thus making it possible to improve the stability of the motor controller. | 2009-06-11 |
20090146594 | INVERTER SYSTEM FOR VEHICLE-MOUNTED AIR CONDITIONER - The present invention has an object to provide an inverter system for a vehicle-mounted air conditioner that prevents noise from entering a control circuit and allows high speed communication. A motor control microcomputer | 2009-06-11 |
20090146595 | Device for supplying a plurality of multiphase electric loads - The present invention relates to a device for supplying a plurality of multiphase electric loads, wherein the device includes at least one multilevel pulse-controlled inverter which comprises at least one decided and at least one multiple semiconductor switch. | 2009-06-11 |
20090146596 | Voltage clamping and energy recovery circuits - A circuit for use with a stator winding of a rotating or linear electrical machine, the stator winding having a number of coils linked by the same number of points of common coupling, includes an electronic commutator circuit having the same number of switching stages, each connected between a respective one of the points of common coupling and first and second main dc lines. Each switching stage includes first and second reverse blocking semiconductor power devices. A voltage clamping circuit includes the same number of clamping stages, each connected between a respective one of the points of common coupling and first and second auxiliary dc lines. Each clamping stage includes first and second diodes and first and second capacitors common to the various clamping stages. A dc to dc converter selectively discharges the first and second capacitors to the first and second main dc lines. | 2009-06-11 |
20090146597 | METHOD FOR DETECTING THE POSITION OF A ROTOR - The invention relates to a method for determining the position of a rotor ( | 2009-06-11 |
20090146598 | BRUSHLESS MOTOR - A brushless motor driven by a sensorless driving circuit includes a rotating body capable of being rotated about a center axis; a rotor magnet arranged coaxially with the rotating body; a stator disposed opposite the rotor magnet; and at least one coil wound around the stator. The brushless motor is driven according to a signal containing a third harmonic component relative to a fundamental wave component in an induced electromotive force. Further, an amplitude ratio of the third harmonic component to the fundamental wave component in the induced electromotive force generated in the coil preferably is about 1% or higher. | 2009-06-11 |
20090146599 | SYSTEM AND METHOD FOR MOTOR FAULT DETECTION USING STATOR CURRENT NOISE CANCELLATION - A system and method for detecting incipient mechanical motor faults by way of current noise cancellation is disclosed. The system includes a controller configured to detect indicia of incipient mechanical motor faults. The controller further includes a processor programmed to receive a baseline set of current data from an operating motor and define a noise component in the baseline set of current data. The processor is also programmed to acquire at least on additional set of real-time operating current data from the motor during operation, redefine the noise component present in each additional set of real-time operating current data, and remove the noise component from the operating current data in real-time to isolate any fault components present in the operating current data. The processor is then programmed to generate a fault index for the operating current data based on any isolated fault components. | 2009-06-11 |
20090146600 | INTELLIGENT FOOT OF HUMANOID ROBOT - An intelligent foot of a humanoid robot, which enables the robot to safely walk in balance even on the irregular ground, is disclosed. The walking robot's foot includes a backpart unit with a leg which is rotatably installed at the center thereof, and a forepart unit which is rotatably connected to the front of the backpart unit by a foot part connector, wherein 6-axis force/moment sensors are installed on the bottom of the backpart unit and the bottom of the forepart unit, respectively. Further, walking robot's foot includes a backpart unit with a leg which is rotatably installed at the center thereof, and at least two toes which are rotatably connected to the front of the backpart unit by foot part connectors, wherein a 6-axis force/moment sensor is installed on the bottom of the backpart unit, and short shaft sensors are installed on the bottom of the toes. | 2009-06-11 |
20090146601 | Automation systems diagnostics and predictive failure detection - The present invention discloses a system and method for monitoring and diagnosing a robot mechanism. This requires adding intelligence to the diagnostics by parameters of physical robot arm linkages respecting component relative rotation or load transfer; storing rotation or translation relationship parameters characteristic of resonant frequencies between at least one mechanical link; receiving servo motor signals; digitizing and storing servo known normal data time histories; performing a time domain to frequency domain transformation on signal to identify components which are out-of band limit pre-sets. | 2009-06-11 |
20090146602 | DRIVING APPARATUS - [Problems] It is therefore an object of the present invention to provide a driving apparatus which can be reduced in the number of complete parts in comparison with the conventional driving apparatus. | 2009-06-11 |
20090146603 | MVDC power transmission system for sub-sea loads - A system for the transmission of a direct current (DC) at a medium voltage level includes a system DC link configured to carry power from a source to a load module. The load module includes a DC-to-DC voltage step-down converter, a DC-to-AC inverter coupled downstream to the DC-to-DC voltage step-down converter, and a system AC link for carrying power from the load module to a motor system on a load side of the system AC link. The system is effective for delivering power over distances that are greater than 30 kilometers, and for delivery of power from an on-shore to offshore and sub-sea load. | 2009-06-11 |
20090146604 | COMPLEX LITHIUM SECONDARY BATTERY AND ELECTRONIC DEVICE EMPLOYING THE SAME - Provided is a complex lithium secondary battery that includes a dye-sensitized solar cell unit and a lithium secondary battery unit, wherein the dye-sensitized solar cell unit and the lithium secondary battery unit share a common anode layer. The complex lithium secondary battery is rechargeable using solar energy, as an alternative power source to when there is no power source for recharging the complex lithium secondary battery, can be bendable, and has a simple structure. | 2009-06-11 |
20090146605 | Electronic apparatus, and method of charging a remote control device - An electronic apparatus comprises an electronic apparatus main body and a remote control device for operating the electronic apparatus main body via wireless communications. The remote control device includes a device battery providing drive power supply to the remote control device. The electronic apparatus main body includes a main body battery. Excess energy, such as heat, generated when the electronic apparatus main body is driven is converted into electric power. A charge control circuit causes the main body battery to be charged with the electric power produced from the excess energy. When the remote control device is housed in the container unit, the charge control circuit causes the device battery to be charged by the main body battery. The remote control device can be reliably and easily charged, and the remote control device and the electronic apparatus main body can be easily managed. | 2009-06-11 |
20090146606 | Fuel Cell Apparatus with Charge Circuit - A fuel cell apparatus with charge circuit comprises a fuel cell, a power output circuit and a charge circuit. The power output circuit transmits the power outputted by the fuel cell and further comprises a sensor unit for detecting the power characteristics outputted by the power output circuit and outputs corresponding electrical signals. The charge circuit transmits power outputted by the fuel cell and comprises a secondary cell and a charging unit. The charging unit controls the charge circuit to perform the charging operation of the secondary cell, wherein the power output circuit is electrically connected in parallel with the charge circuit, while the fuel cell is electrically connected in series with the power output circuit. The charging unit performs the charging control of the charge circuit to the secondary cell according to electrical signals outputted by the sensor unit. | 2009-06-11 |
20090146607 | Serial stage power supply combination for emergency auxiliary charging apparatus - An improved emergency auxiliary power supply comprised of a rechargeable secondary battery, a super capacitor or any other type of storage with the capacity equal to or smaller than the load voltage to function as an emergency charging source; a conduction train, an optional charging control circuit and another optional first storage unit comprised of a diode on the output side to prevent inverse voltage and connected to a second storage in the load coupled to the output are provided to comprise a lighter, easy to carry, and for emergency use DC power supply system allowing flexible combination with at least two stages for serial stage power supply. | 2009-06-11 |
20090146608 | Non-contact charging apparatus having charging information display function and method thereof - A non-contact charging apparatus having a charging information display function is presented. The non-contact charging apparatus includes a charging unit for charging a charge object in a non-contact manner placed in proximity to the charging unit, wherein the charging unit is configured to measure a charging efficiency and a charging status of the charge object on each position of the charging area, and to output the charging efficiency and the charging status via an output unit. | 2009-06-11 |
20090146609 | Charging Base with Testing Capability for Medical Device - A charging base for a battery-operated device has a port with a plurality of contacts and a charging connection. Testing circuitry is coupled to the plurality of contacts, and charging circuitry facilitates the charging connection. A housing at least partially encloses the testing circuitry and the charging circuitry. | 2009-06-11 |
20090146610 | Battery management system - Apparatus for a modular battery management system with interchangeable slave modules connected to each cell and including a master module controlling and managing the battery system. All the modules receive power through a transfer switch that selectively switches between an external source, an auxiliary source, and the battery. The modules are configured to connect to a cell of the battery for charging and monitoring the cell individually. Each module is electrically isolated from the other modules. The modules are autonomous and shut down the battery and disconnect the module when a critical parameter of the cell is reached. When the battery is in service and a cell parameter approaches the critical level, the master controller instructs the corresponding slave module to charge the cell using battery power. The master module initializes the slave modules to uniquely identify the modules. | 2009-06-11 |
20090146611 | Automatic discharging apparatus - The present invention discloses an automatic discharging apparatus used for discharging a battery disposed internally therein periodically. The apparatus includes a power source; a load; a battery connected to the power source and the load, wherein the battery supplies power to the load during a power failure; and a controller connected to the battery and the power source for discharging the battery periodically. | 2009-06-11 |
20090146612 | CHARGE CONTROL DEVICE AND VEHICLE USING THE SAME - At the time of charging a power storage device from a commercial power supply, electric power from the commercial power supply is applied to a neutral point of each of first and second motor generators. A rotation preventing control unit ( | 2009-06-11 |
20090146613 | SECONDARY BATTERY CHARGING METHOD AND DEVICE - A method of charging a secondary battery and a charging device that can improve stability and extend the life span of the battery. When the secondary battery includes a plurality of cells, the charging method is changed when a voltage imbalance from 100 mV to 300 mV occurs among the cells. In that range, the charging method changes from a constant current-constant voltage charging method to a pulse-charging method. When the voltage imbalance is 300 mV or more, the electricity path is blocked, shutting down the battery. When the voltage imbalance is 100 mV or less, the constant current-constant voltage charging method is maintained. The method and device also stop charging when the battery reaches full charge. | 2009-06-11 |
20090146614 | Protection Methods, Protection Circuits and Protection Devices for Secondary Batteries, a Power Tool, Charger and Battery Pack Adapted to Provide Protection Against Fault Conditions in the Battery Pack - In a cordless power tool system, protection methods, circuits and devices are provided to protect against fault conditions within a battery pack that is operatively attached to a power tool or charger, so as to prevent internal or external damage to the battery pack or attached tool or charger. The exemplary methods, circuits and devices address fault conditions such as over-charge, over-discharge, over-current, over-temperature, etc. | 2009-06-11 |
20090146615 | Hybrid Motor Vehicle and Method for Controlling Operation of a Hybrid Motor Vehicle - The invention relates to a method for controlling an operation of a motor vehicle equipped with a hybrid drive unit ( | 2009-06-11 |
20090146616 | Method of Automotive Electrical Bus Management - A method for managing a vehicle's electrical power bus and charging system. A current sensor is utilized to measure a current produced by an alternator. The alternator current is controlled in a feedback system such that the current is equal to the amount required for the vehicle loads or, if the battery is being charged, the amount required for the vehicle loads plus the optimum charging current. Alternatively, the method may measure and control the amount of current delivered to and from the battery such that, in a fuel efficiency mode, no current is delivered to the battery. | 2009-06-11 |
20090146617 | Power-generation control device for detecting abnormality in power generator - In a power-generation control device, a voltage regulating unit regulates an output voltage of a power generator to a preset target level. When at least one of a plurality of types of abnormalities occurs in the power generator, an abnormality detector detects the at least one of the plurality of types of abnormalities occurred in the power generator. The abnormality detector allows detection of the plurality of types of abnormalities that are possible to occur in the power generator. A transmitter creates an alarm signal to thereby transmit, to an external device, the alarm signal. The alarm signal includes information indicative of the at least one of the plurality of types of abnormalities detected by the abnormality detector. | 2009-06-11 |
20090146618 | FIXED-OFF-TIME POWER FACTOR CORRECTION CONTROLLER - A control device for a power factor correction device in forced switching power supplies is disclosed; the device for correcting the power factor comprises a converter and said control device is coupled with the converter to obtain from an input alternating line voltage a regulated output voltage. The converter comprises a power transistor and the control device comprises a driving circuit of said power transistor; the driving circuit comprises a timer suitable for setting the switch-off period of said power transistor. The timer is coupled with the alternating line voltage in input to the converter and is suitable for determining the switch-off period of the power transistor in function of the value of the alternating line voltage in input to the converter. | 2009-06-11 |
20090146619 | POWER FACTOR CORRECTION METHOD FOR AC/DC CONVERTERS AND CORRESPONDING CONVERTER - An indirect and passive method for AC/DC( converter power factor correction is disclosed. The correction is achieved by stabilizing the input impedance of the converter with keeping the inversely proportional dependence between the current i | 2009-06-11 |
20090146620 | METHODS AND APPARATUS FOR CURRENT SENSING - Methods and apparatus for current sensing according to various aspects of the present invention operate in conjunction with a current sensor adapted to sense the current provided to a load via a transistor. In one embodiment, a power supply includes the current sensor, and supplies the current through a series combination of an inductor and the transistor. The current sensor is adapted to generate the inductor current signal according to a sensed current in the inductor, and may comprise a series combination of a first resistor and a second resistor. The resistive series combination is adapted to be connected in parallel to the series combination of the inductor and the transistor. | 2009-06-11 |
20090146621 | METHODS AND APPARATUS FOR CURRENT SENSING IN MUTUALLY COUPLED INDUCTORS - Methods and apparatus for current sensing in mutually coupled inductors according to various aspects of the present invention may operate in conjunction with a control system adapted to control current through the inductors and multiple current sensors connected to the control system. Each current sensor may comprise a series combination comprising a capacitor and a resistor. The series combination may be connected in parallel with one of the inductors, and may be adapted to generate branch inductor current signals according to a sensed current in the connected inductor. In addition, a coupling capacitor may be coupled between at least two of the current sensors to compensate a time constant of the current sensor for mutual coupling inductance between the inductors. | 2009-06-11 |
20090146622 | PHASE SHEDDING CONVERTER WITH RIPPLE MINIMIZATION - In an information handling system, a multi-phase electrical converter includes an electrical input, an electrical output, a plurality of converter phases coupled with the electrical input and the electrical output, and a controller to ramp operation of one or more of the converter phases as a load demand adjusts. In an embodiment the converter may be a multi-phase buck converter having a high side switch, a low side switch, and an inductor. In an embodiment, the controller may ramp operation of the converter phases by adjusting a duty cycle of the high side switch. In an embodiment, the controller may adjust a phase angle of one or more of the converter phases, wherein the adjustment may be relative to the ramping operation of the one or more of the converter phases. | 2009-06-11 |
20090146623 | DC to DC converter - A DC to DC converter comprising an inductor, first and second electrically controllable switches and a controller, wherein the first electrically controllable switch is interposed between an input node and a first terminal of the inductor and the second electrically controllable switch extends between a second terminal of the inductor and a common node or a ground, and where a first rectifier extends between the common node or ground and the terminal of the inductor and a second rectifier connects the second terminal of the inductor to an output node, wherein the controller controls the operation of the first and second switches to perform voltage step down or step up, as appropriate, to achieve a desired output voltage and wherein a decision about when to switch the first electrically controlled switch is made as a first function of a voltage error between the output voltage and a target output voltage, and an estimate of the current flowing in the inductor. | 2009-06-11 |
20090146624 | SHUNT REGULATOR HAVING OVER-VOLTAGE PROTECTION CIRCUIT AND SEMICONDUCTOR DEVICE INCLUDING THE SAME - A shunt regulator includes a control circuit, a bypass circuit and a protection circuit. The control circuit is coupled between a first node and a ground, and generates a gate control signal in response to a voltage of the first node and a reference voltage. The bypass circuit forms a first current path between the first node and the ground in response to the gate control signal. The protection circuit has an MOS transistor that is filly turned on in response to a current flowing through the bypass circuit, and forms a second current path between the first node and the ground. Therefore, the shunt regulator occupies a relatively small area in an integrated circuit. | 2009-06-11 |
20090146625 | VOLTAGE GENERATING APPARATUS - A voltage generating apparatus including a voltage generator and a current splitter is provided. The voltage generator has an output node, and generates a first output voltage from the output node. The first output voltage rises when the temperature rises and the current flowing from the output end of the voltage generator is fixed. And the first output voltage drops when the temperature is fixed and the current flowing from the output node of the voltage generator rises. The current splitter is used for increasing the current flowing through the current splitter when the temperature rises. Therefore, the rise of the first output voltage of the voltage generator will be restrained, and the temperature compensation can be achieved. | 2009-06-11 |
20090146626 | System And Method For Dissipating Energy On The Primary Side Of A Bi-Directional Switching Power Supply - A system for dissipating energy in a power supply includes a bidirectional switching power output stage coupled to a primary power supply side and a secondary power supply side, the bi-directional switching power output stage configured to provide a positive voltage and a positive current, the bi-directional switching power output stage also configured to provide a positive voltage and to receive a current. The system for dissipating energy in a power supply also includes a current sinking circuit coupled to the primary power supply side, the current sinking circuit configured to dissipate energy when the secondary power supply side of the switching power supply is receiving current. | 2009-06-11 |
20090146627 | VOLTAGE REGULATING CIRCUIT - A voltage regulating circuit including an error signal generator, a comparator, a switch unit, a low-pass filter and a modulating unit is provided. The error signal generator respectively receives a reference voltage signal and a feedback signal, and generates an error signal. The comparator respectively receives the error signal and a comparing signal, and generates a pulse width modulation signal. The switch unit regulates an input voltage signal to generate an output voltage signal according the pulse width modulation signal. The low-pass filter filters out the high frequency of the output signal and produces the feedback signal. The modulating unit is coupled to the low-pass filter and the error signal generator for regulating a transient voltage of the output voltage signal. | 2009-06-11 |
20090146628 | POWER SUPPLY CONTROL CIRCUIT - An exemplary aspect of a power supply control circuit includes a reference voltage control circuit that applies a potential corresponding to a potential of a second power supply line to a reference voltage node connected to a control terminal of a first switch when a power supply voltage is applied in a forward direction between first and second power supply lines, and that applies a potential corresponding to a potential of a first power supply line to the reference voltage node when the power supply voltage is applied in the reverse direction between the first and second power supply lines. | 2009-06-11 |
20090146629 | METHODS AND APPARATUS FOR POWER SUPPLY - Methods and apparatus for supplying a load according to various aspects of the present invention operate in conjunction with an output stage and a control system driving the output stage. The control system may include a PWM controller adapted to provide a drive signal to the output stage and an over-current protection circuit. The over-current protection circuit may sense an over-current condition at the load and truncate the drive signal in response to the over-current condition. | 2009-06-11 |
20090146630 | SEMICONDUCTOR DEVICE - A semiconductor device includes: a digital control circuit configured to supply two semiconductor switching elements connected in series in a switching power supply circuit with a pulse signal for turning on/off the semiconductor switching elements; and a dead time setting circuit configured to set a dead time in which the two semiconductor switching elements are both turned off. The dead time setting circuit includes: a delay generation circuit including a plurality of delay elements connected in series and having mutually different delay values; and a delay adjustment circuit configured to adjust the delay values of the delay generation circuit so that a setting value of the dead time is determined on basis of correlation between the dead time and the duty cycle of the pulse signal. | 2009-06-11 |
20090146631 | STEP-DOWN SWITCHING REGULATOR - In a control circuit which turns on/off the switching device elements included in a synchronous rectifier step-down switching regulator, a hysteresis comparator compares the detection voltage that corresponds to the output voltage of the step-down switching regulator with a first threshold voltage and a second threshold voltage. A light-load detection circuit detects whether or not a load is in the light-load state. A driver circuit turns on/off the switching device elements according to the pulse signal output from the hysteresis comparator. Upon the light-load detection circuit detecting the light-load state, the hysteresis comparator shifts the second threshold voltage toward the higher-voltage side by a predetermined voltage difference. | 2009-06-11 |
20090146632 | SOFT START OF A SWITCHED SECONDARY CONTROL CIRCUIT FOR A SWITCHED MODE POWER SUPPLY - Usually when switched secondary control is used to regulate output voltages in a flyback converter, high peak currents through the secondary switch occur during startup. Traditional soft-start methods cannot be applied to limit these peak currents. With the inventive control circuit and method, current limiting during startup is achieved by measuring the magnetic flux in the fly-back transformer, and by advancing the time instant at which current flow through the secondary switch ( | 2009-06-11 |
20090146633 | STEP-UP SWITCHING REGULATOR AND ITS CONTROL CIRCUIT AND ELECTRONIC APPARATUS EMPLOYING IT - A switching transistor has a source connected to the ground and a drain connected to the first terminal. The other end of an inductor whose one end is to be connected to the first terminal is connected to the second terminal. An input voltage is applied to the third terminal. An auxiliary transistor is disposed between the second terminal and the third terminal. A first soft start circuit generates a first soft start voltage that increases with lapse of time, and a second soft start circuit generates a second soft start voltage that increases with a delay to the first soft start voltage. An error amplifier controls the gate voltage of the auxiliary transistor on the basis of the error voltage between the output voltage and the first soft start voltage. | 2009-06-11 |
20090146634 | Single integrator sensorless current mode control for a switching power converter - A single integrator sensorless current mode control scheme for a switching power converter requires an amplifier circuit which produces an first current that varies with the difference V | 2009-06-11 |
20090146635 | SYSTEM AND METHOD FOR IMPROVING INDUCTOR CURRENT SENSING ACCURACY OF A DC/DC VOLTAGE REGULATOR - The DC/DC voltage converter comprises at least one switching transistor. An inductor is connected to the at least one switching transistor. A pulse width modulation circuit generates control signals to at least one switching transistor responsive to a current control signal. A current sensor connected in parallel with the inductor senses current passing through the inductor. The sensor comprises a resistor and an NTC capacitor connected in series with the resistor. Circuitry for monitoring the voltage across the NTC capacitor generates the current control signal responsive to the monitored voltage. | 2009-06-11 |
20090146636 | SWITCHING ELEMENT, VARIABLE INDUCTOR, AND ELECTRONIC CIRCUIT DEVICE HAVING CIRCUIT CONFIGURATION INCORPORATING THE SWITCHING ELEMENT AND THE VARIABLE INDUCTOR - An inexpensive variable inductor has inductance value continuously changeable without reducing a Q value. When a control voltage is applied to a control terminal of a MOS transistor from a power supply, a continuity region is formed in a channel, and a region between main terminals becomes conductive. When the control voltage is changed, length of the continuity region in the channel is changed. This changes length of a path area of an induced current, flowing in an induced current film. Thus, the amount of induced current is increased or decreased. Therefore, when the control voltage of the MOS transistor is changed, the inductance value of the coil is continuously changed. | 2009-06-11 |
20090146637 | LOAD TAP CHANGER - A load tap changer includes a single mechanical switch that is movable to create, in a first position, a first conducting path between a first transformer tap and a load. When the switch is in a second position, the switch creates a second conducting path between a second transformer tap and the load. A first thyristor pair or other device creates a first alternate conducting path between the first transformer tap and the load when the switch is disengaged from the first position. A second thyristor pair or other device creates a second alternate conducting path between the second transformer tap and the load when the mechanical switch is disengaged from the second position. Each thyristor pair may be selectively triggered to provide a conducting path when voltage across either thyristor pair exceeds a predetermined level. A gate trigger circuit may be included for each thyristor pair, and a gate control circuit may control each of the gate trigger circuits. | 2009-06-11 |
20090146638 | Micro power converter - An object of the invention is to provide a micro power converter of a step-up and step-down type without requiring more than two semiconductor switches, without increasing the size of a semiconductor chip, and without degrading efficiency. A micro power converter comprises a micro transformer composed of a planar transformer having a structure including a conductor wound on and through a planar magnetic core, and a semiconductor chip including semiconductor switches S | 2009-06-11 |
20090146639 | DETECTOR - Provided is a detector having a transistor or resistor structure. When an electrode is exposed to a detected solution, such as blood, a variation in current flowing through the detected solution may be greater than a variation in the electrical characteristics of the detector caused by a variation in the physical properties of semiconductor so that it is difficult to detect whether a bio-particle is contained in the detected solution. In order to solve this problem, a detection portion and an electrical measurement portion are separately formed, and the detection portion is processed with the bio-particle and then post-processed. Subsequently, the detection portion and the electrical measurement portion are bonded to each other using, for example, a laminating process, and the detector measures a detection value. | 2009-06-11 |
20090146640 | PHASE DIFFERENCE MEASURING DEVICE AND PHASE COMPARISON CIRCUIT ADJUSTING METHOD - A phase difference measuring device according to this invention has an object of shortening the measuring time, and includes a plurality of phase difference measuring circuits ( | 2009-06-11 |
20090146641 | ELECTRONIC TAMPER DETECTION CIRCUIT FOR AN ELECTRICITY METER - An electronic meter tamper detection system and method for sensing the removal of an electricity meter from a meter socket and generating a tamper signal when such removal is detected. The tamper detection circuit includes a control unit having an energy storage device that is charged during normal operation of the electricity meter. When power is interrupted to the electricity meter, the control unit applies a charging voltage to a voltage regulating device within the electricity meter. The voltage regulating device can be charged only when the electricity meter is installed within the meter socket. After applying the charging voltage to the voltage regulating device, the control unit senses whether the voltage regulating device has been charged. If the voltage regulating device has not been charged, the control unit indicates that the meter has been removed from the meter socket. | 2009-06-11 |
20090146642 | Instrumentation Device and Interface Combining Multiple Elements - An instrumentation device having multiple elements includes at least one power supply module, a plurality of test and measurement instruments operatively coupled to the at least one power supply module and a user interface configured to select the at least one power supply module and to select at least one of the plurality of test and measurement instruments to provide power supply functionality and test and measurement functionality. | 2009-06-11 |
20090146643 | METHODS AND APPARATUS FOR CURRENT SENSING - Methods and apparatus for current sensing according to various aspects of the present invention sense the current in a circuit, such as an inductor circuit. The current sensing systems may comprise an RC element connected such that the RC time constant matches the L/R time constant of the inductor. The current sensor may be configured to generate voltages that are proportional to the instantaneous current in the inductor with scaled gain for a wide range of inductor self resistance (DCR) values. | 2009-06-11 |
20090146644 | ELECTRIC METER HAVING A DETACHABLE MEASURING BAR - An electric meter having a detachable measuring bar includes a main body, a first measuring bar and a second measuring bar assembly. One end of the main body is formed with a supporting portion. The first measuring bar has a connecting portion and a probe formed at the other end of the connecting portion. The connecting portion is detachably connected with the supporting portion of the main body. The second measuring bar assembly comprises a second measuring bar and a lead. Both ends of the lead are connected to the main body and the second measuring bar. Via this arrangement, when the first measuring bar is worn or damaged in use, the first measuring bar can be replaced, thereby reducing the purchasing cost of the electric meter. | 2009-06-11 |
20090146645 | Position sensor - In order to be able to perform a measurement of the run time of an electrical impulse in a position sensor through a single slow timed timing generator, while still capable to achieve a high precision of the measurement result, the entire run time is determined, so that the number of the completely performed system timings is counted as a coarse time value, and the fractions thereof are counted as a fine time value, in which the electrical impulse is started at a fixed point in time of the system timing, e.g. at the beginning of the timing, and the difference value is measured between the end of the coarse time interval and the arrival of the wave as a fine time interval, which is then digitized and computed with the coarse time value. | 2009-06-11 |
20090146646 | Position sensor, evaluation circuit, and electric motor - The invention relates to a position sensor (PS) that is in position to deliver data for evaluating positioning data of an axle (OS) over a specified number of turns, where two transmissions (G | 2009-06-11 |
20090146647 | SYSTEM INCLUDING SENSING ELEMENTS AT DIFFERENT DISTANCES FROM VERTICAL MAGNETIC FIELD LINES - A system including a magnet, a first magneto-resistive sensing element, and a second magneto-resistive sensing element. The magnet is configured to provide a magnetic field. The first magneto-resistive sensing element is situated in the magnetic field and the second magneto-resistive sensing element is situated in the magnetic field. The second magneto-resistive sensing element is laterally a greater distance from vertical magnetic field lines of the magnetic field than the first magneto-resistive sensing element. | 2009-06-11 |
20090146648 | Rotation Detector - A rotation detector that can be assembled into a hub of a wheel without breakage of an object to be detected. The rotation detector has a housing ( | 2009-06-11 |
20090146649 | Non-contact rotational angle detecting sensor - There is provided a non-contact rotational detecting sensor comprising a ring-shaped permanent magnet which rotates integrally with a detection object of a rotational angle and of which a magnetic pole changes along the circumferential direction, a ring-shaped inside magnetic flux collecting yoke for surrounding an outer peripheral surface of the ring-shaped permanent magnet in a constant gap, a ring-shaped outside magnetic flux collecting yoke for surrounding an outer peripheral surface of the ring-shaped inside magnetic flux collecting yoke in a constant gap, and a hole IC arranged in a gap formed in the ring-shaped inside magnetic flux collecting yoke, wherein an axial height of the ring-shaped inside magnetic flux collecting yoke is changed along a circumferential direction of the ring-shaped inside magnetic flux collecting yoke. | 2009-06-11 |
20090146650 | ROTATION ANGLE SENSOR AND SCISSORS GEAR SUITABLE THEREFOR - A driving gear, which is a scissors gear, fixed to a rotating body, engages with a driven gear, and the driven gear engages with a fixed screw receiver. A first gear and a second gear of the driving gear elastically bias the tooth of the driven gear by a coil spring in the direction of an inner side of a diameter; consequently the driven gear | 2009-06-11 |
20090146651 | ROTATION ANGLE SENSOR - A pair of cylindrical magnets with cut away portions has been arranged on both sides of a magnetic sensing element in symmetry of rotation, and a yoke surrounds the magnetic sensing element in contact with outer peripheral surfaces of the pair of the cylindrical magnets with cut away portions. The pair of the cylindrical magnets with cut away portions rotates around an axial center with a concurrent axial displacement along with a rotation of a rotating body. The pair of the cylindrical magnets with cut away portions is arranged in inclined manner against an axis-of-rotation of the magnet. Thereby, the rotation and the displacement in the direction of the axis against the magnetic sensing element of the pair of the cylindrical magnets with cut away portions, and the number of times of rotation can be detected by detecting the size of the magnetic flux density by the magnetic sensing element. The pair of the cylindrical magnets with cut away portions improves the size and linearity of the magnetic field on the axial center. | 2009-06-11 |
20090146652 | Slider tester - A slider tester includes a driving unit that rotates a test medium, a set plate that detachably supports a slider as a single body, and an investigating apparatus that is electrically connected to the slider supported by the set plate and investigates the characteristics of the slider. A movable support part | 2009-06-11 |
20090146653 | Slider tester - A slider tester includes a driving unit that rotates a test medium, a set plate that detachably supports a slider as a single body, and an investigating apparatus that is electrically connected to the slider supported by the set plate and investigates the characteristics of the slider. A movable support part | 2009-06-11 |
20090146654 | Object Detecting Device for Detecting Object Using Electromagnetic Induction - Provided is an object detecting device, which can detect the shape of or the distance from an object made of an electrically conductive or magnetic material, and which can detect the position indicated by an object made of an electrically-non-conductive/non-magnetic material, such as a finger. The object detecting device detects the shape of or the distance from an object to be measured, which is placed on a detection surface and made of an electrically conductive or magnetic material, by using an electromagnetic induction. The object detecting device includes a first loop wire group of a plurality of first loop wires ( | 2009-06-11 |
20090146655 | Eddy current inspection device and method of assembly - A method for assembling an eddy current inspection device includes at least partially positioning a first tip assembly within a cavity defined by a proximity probe case. The first tip assembly defines a bore therethrough. The first tip assembly is sealingly coupling to the proximity probe case. A second tip assembly is at least partially positioned within the cavity and sealingly coupled to the first tip assembly. | 2009-06-11 |
20090146656 | ELONGATED MAGNETIC SENSOR - A magnetoresistive device disposed in an elongated magnetic sensor, for example, has two parallel arrays of magnetosensitive elements arranged at regular intervals in the longitudinal direction. The magnetosensitive elements are connected in series through connection conductors, in a meandering pattern. The magnetoresistive device is disposed between two other magnetoresistive devices. The magnetoresistive devices are arranged such that the intervals between the magnetosensitive elements disposed at the ends of a magnetoresistive in the longitudinal direction and the opposed magnetosensitive elements of the magnetoresistive devices, respectively, are equal to the intervals between the magnetoresistive elements within the magnetoresistive devices. | 2009-06-11 |
20090146657 | Method for processing a distortion-corrected 2d or 3d reconstruction image recorded by a magnetic resonance device - In one embodiment of the present invention, a method for processing a 2D or 3D reconstruction image is disclosed which is recorded by a magnetic resonance device, including a gradient coil that generates a gradient field, and is distortion—corrected with regard to a given non-linearity—leading to an image distortion—of the gradient field using an algorithm that processes the measurement signals at different measurement points lying in the imaging volume, which algorithm, with respect to each signal processed by it, processes the first input value describing the real gradient field given at the real measurement point of the signal, in which method, for inverse transformation of the distortion-corrected reconstruction image into a distortion-uncorrected reconstruction image, use is made of the first algorithm or a second algorithm corresponding to the first algorithm, which, with respect to each signal processed by it, is given as second input value such a value which describes a fictitious gradient field at the respective distorted measurement point at which the processed signal appears, which is increased or decreased by the non-linear field component of the real gradient field compared with the linear ideal gradient field. | 2009-06-11 |
20090146658 | Microcoil Magnetic Resonance Detectors - The present invention provides microcoil magnetic resonance based modules, detection devices, and methods for their use. | 2009-06-11 |
20090146659 | METHOD AND DEVICE FOR AUTOMATIC DETERMINATION OF SLICE POSITIONS IN AN MR EXAMINATION - Two method and device embodiments allow automatic determination of slice positions in an MR examination in an MR system. In the first embodiment, a volume to be measured by the MR examination is predetermined. The MR examination is subsequently planned in that at least one of the parameters slice direction, slice interval, slice thickness, number of slices for the MR examination is adapted such that an extent in the slice direction of the MR examination essentially corresponds to the predetermined volume. In the second embodiment, at least one volume segment is predetermined. Multiple slices for the MR examination are subsequently determined such that each volume segment is contained in at least one of the slices. | 2009-06-11 |
20090146660 | MAGNETIC RESONANCE SYSTEM WITH POWER LOSS-OPTIMIZED OPERATION - A magnetic resonance system has multiple individual transmission antennas each charged with a transmission current to emit an individual excitation field in an examination volume to excite magnetic resonances in a subject in the examination volume, with a total excitation field being a superimposition of the individual excitation fields. A determination device is provided with a spatial distribution of an absorption rate of the examination subject and determines a combination of amplitudes and phase positions for the transmission currents relative to one another such that a locally absorbed power at a first point of the examination subject relative to a locally absorbed power at a second point of the examination subject satisfies a relative condition. The determination device communicates the combination of amplitudes and phase positions that it has determined to a control device. The control device charges the transmission antennas with transmission currents whose phase positions correspond with the phase positions communicated by the determination device and whose amplitudes are scaled with a uniform scaling factor for all transmission currents relative to the amplitudes communicated by the determination device. | 2009-06-11 |
20090146661 | Apparatus of Nuclear Magnetic Resonance Measurement By Using Circulation Flow For Sample Condition Control - An apparatus for nuclear magnetic resonance measurement includes a measurement portion having a magnet for applying a magnetic field to a sample, a bore within the magnet, a nuclear magnetic resonance probe disposed in the bore, and a container for retaining the sample therein; a mixing filter portion for mixing a small molecule solution with a sample solution; a separating filter portion; a small molecule concentration controlling portion; a transmitter/receiver system; a unit for carrying out circulation solution transfer; a unit for injecting the small molecule solution; a unit for controlling the small molecule concentration; a unit for injecting the sample solution; a unit for holding the sample solution in the measurement portion; a unit for discharging the sample solution; and a unit for carrying out nuclear magnetic resonance measurement of the sample solution. | 2009-06-11 |
20090146662 | MULTI-CHANNEL MEASURING APPARATUS FOR CONNECTION TO A FUEL CELL STACK - A number and a combination of N-pole connectors and (N+1)-pole connectors are determined such that a number of fuel cells included in the fuel cell stack and a number of all of poles included in the plurality of terminal-side connectors are equal to each other. Further, when the number of fuel cells of the fuel cell stack changes, the change can be addressed by changing the number and the combination of the N-pole connectors and the (N+1)-pole connectors without newly providing a terminal-side connector other than the N-pole connector and the (N+1)-pole connector. | 2009-06-11 |
20090146663 | Battery testing device and battery testing method - The present invention provides a battery testing device and a battery testing method which can appropriately verify the behavior of a battery when damage occurs. Appropriately verification of battery behavior in a case of battery damage has not been achieved since a completely crushed state of a battery almost never occurs during the sue of a portable device, such as a portable telephone, and a completely crushed state of a battery is not the worst condition when determining an abnormality induced by an internal short. Therefore a secondary battery set on a test stand is partially crushed using a pressing member, and the quality of the secondary battery is determined by measuring the temperature of the secondary battery, whereby battery behavior when the secondary battery is damaged can be appropriately verified. | 2009-06-11 |
20090146664 | BATTERY STATE OF HEALTH MONITORING SYSTEM AND METHOD - A state-of-health monitoring and prognosis method and system for a battery includes a signal preprocessing module for monitoring battery terminal voltage and current and extracting a portion of the battery terminal voltage and current corresponding to an engine cranking event. Battery voltage loss that occurs during said engine cranking event is estimated from the extracted portion of battery terminal voltage and current by a voltage loss estimation module. The estimated battery voltage loss is compared with a predetermined voltage loss threshold to determine battery state-of-health by a state-of-health evaluation module. | 2009-06-11 |
20090146665 | Method and apparatus for shielding feedthrough pin insulators in an ionization gauge operating in harsh environments - Shields for feedthrough pin insulators of a hot cathode ionization gauge are provided to increase the operational lifetime of the ionization gauge in harmful process environments. Various shield materials, designs, and configurations may be employed depending on the gauge design and other factors. In one embodiment, the shields may include apertures through which to insert feedthrough pins and spacers to provide an optimal distance between the shields and the feedthrough pin insulators before the shields are attached to the gauge. The shields may further include tabs used to attach the shields to components of the gauge, such as the gauge's feedthrough pins. Through use of example embodiments of the insulator shields, the life of the ionization gauge is extended by preventing gaseous products from a process in a vacuum chamber or material sputtered from the ionization gauge from depositing on the feedthrough pin insulators and causing electrical leakage from the gauge's electrodes. | 2009-06-11 |
20090146666 | PARTIAL DISCHARGE CHARGE QUANTITY MEASURING METHOD AND DEVICE - The present invention comprises an antenna adapted to measure an electromagnetic wave radiated from a device to be measured stemming from partial discharge and having sensitivity at least in the UHF band; a filter for extracting a TEM mode component from a measured time waveform; and a measurement device body including a processing section adapted to obtain a second order integral value of the time waveform having undergone the filter processing and obtain a discharge charge quantity from the value. The present invention also comprises an electromagnetic wave radiation simulating apparatus for inputting a pseudo discharge signal to the device to be measured and previously obtaining the relation between the second order integral value and the discharge charge quantity, wherein the processing section obtains the discharge charge quantity from the second order integral value with reference to the previously obtained relation between the second order integral value and the discharge charge quantity. | 2009-06-11 |
20090146667 | Testing of a photovoltaic panel - A method for testing a photovoltaic panel connected to an electronic module. The electronic module has at least one input attached to the photovoltaic panel and at least one power output. The method of testing the photovoltaic panel begins with activating a bypass of the electronic module. The bypass is preferably activated by applying a magnetic or an electromagnetic field. The bypass provides a low impedance path between the input and output of the electronic module. | 2009-06-11 |
20090146668 | ANTI-PINCH SENSOR AND EVALUATION CIRCUIT - An anti-pinch sensor is provided for detecting an obstacle in the path of a regulating element of a motor vehicle, the sensor can include a sensor body, a first measuring electrode that can be arranged in the sensor body and can be used to produce a first outer electrical field in relation to a counter-electrode, and an electrically separated second measuring electrode that can be arranged adjacent to the first measuring electrode in the sensor body and can be used to produce a second outer electrical field in relation to the counter electrode. The measuring electrodes can be formed in such a way that the first outer electrical field has a larger range than the second outer electrical field. An evaluation circuit is also provided that is suitable for evaluating an anti-pinch sensor. The detection reliability of such a clamping sensor is not affected by dirt or water on a surface thereof. | 2009-06-11 |
20090146669 | Capacitive Fingerprint Sensor and the Panel Thereof - A capacitive fingerprint sensor comprises a fingerprint capacitor, a reference capacitor, a first transistor, a second transistor, a third transistor and a fourth transistor. The fingerprint capacitor C | 2009-06-11 |
20090146670 | Measuring device, and conductivity measuring device, for determining flow capacities of electroconductive liquids, measuring element, and method. - A measuring device for determining flow capacities d(V(z)) of electroconductive liquids having a conductivity LF through a container in the event of vertically (z direction) variable levels. The inventive measuring device is a conductivity measuring device comprising, inter alia, at least two electrodes extending in the z direction. The container and/or the conductivity measuring device is/are embodied in such a way that they can be described by at least one parameter function f | 2009-06-11 |
20090146671 | Current sensing on a MOSFET - A device having a switch with a voltage applied across the switch. A current sensing circuit is connected to one terminal of the switch. The current sensing circuit receives power independently of the voltage applied across the switch. The power supply shares the other terminal of the switch with the current sensing circuit. The switch is adapted for opening and closing. When the switch closes, the current sensing circuit senses current through the switch and upon opening the switch the high voltage of the switch is blocked from the current sensing circuit. The sense current is caused to flow from the current sensing circuit to the other terminal when the switch is closed. The flow of the sense current produces a voltage which is compared differentially to another voltage referenced by the other terminal | 2009-06-11 |
20090146672 | Double Ended Contact Probe - It is an object of the present invention to provide a double-ended contact probe that can be improved in productivity to ensure that the contact members are stably movable with respect to each other, and electrically connected to each other. The double-ended contact probe comprises first and second conductive members | 2009-06-11 |
20090146673 | Manufacturing method of probe card and the probe card - A manufacturing method for probe card according to the present invention includes following processes. A film is formed on the surface of a circuit board. A connecting terminal and joint member are formed by etching the film, and the surface of the joint member is polished. An inspection contacting structure is assembled. The inspection contacting structure is moved proximity to a circuit board. The lower surface of a contactor and joint member are attached so as to contact the front end of a probe penetrating and passing through the contactor to the connecting terminal. | 2009-06-11 |
20090146674 | INSPECTION APPARATUS - An inspection apparatus includes an electrical connection member which is configured to remove flux attached to a part to be inspected of an object to be inspected, a base member which is provided with the electrical connection member, a driving member which is configured to move the base member relative to the object to be inspected, a control member which is configured to control an operation of the driving member, and an inspection start-up member which is configured to send an operation start signal to the control member, when the operation start signal is sent from the inspection start-up member to the control member, the base member is moved by the driving member, and the electrical connection member is brought into contact with the part to be inspected of the object to be inspected a predetermined number of times, by a control of the control member. | 2009-06-11 |