48th week of 2012 patent applcation highlights part 21 |
Patent application number | Title | Published |
20120299514 | TRANSFORMER AND PRIMING CIRCUIT THEREFOR - The invention relates to transformers. More particularly, the invention relates to transformers using (preferably electrostatic and more preferably dielectric elastomer) transducers such as generators and actuators. The invention further provides a priming circuit therefor. | 2012-11-29 |
20120299515 | WOUND FIELD SYNCHRONOUS MACHINE ROTOR TRACKING USING A CARRIER INJECTION SENSORLESS SIGNAL AND EXCITER CURRENT - An example method of initiating operation of a wound field synchronous machine in a motoring mode includes estimating an initial position of a rotor of a wound field synchronous machine using a carrier injection sensorless stimulation signal. The method tracks an operating position of the rotor based on current harmonics of the wound field synchronous machine. The method also calibrates the tracking using the initial position. | 2012-11-29 |
20120299516 | PERMANENT MAGNET MOTOR SYSTEM - A sensorless permanent magnet motor system that prevents negative torque caused by back EMF. The system determines the position of the rotating permanent magnet by monitoring back EMF generated on an inactive coil of the motor system. A snubber circuit is used to prevent the back EMF from causing negative torque on the motor. The voltage of back EMF used to power a logic circuit, such as a microcontroller, that controls the operation of the motor. The microcontroller controls the operation of the motor by detecting back EMF and is also partially powered by the back EMF. | 2012-11-29 |
20120299517 | ELECTRIC POWER STEERING SYSTEM - In an electric power steering system, a back electromotive force constant is calculated on the basis of a steering angular velocity and an estimated induced voltage. Then, a rotation angular velocity of a motor is calculated as an estimated rotation angular velocity on the basis of a motor current, a motor voltage, the back electromotive force constant and a motor resistance. | 2012-11-29 |
20120299518 | METHOD AND APPARATUS FOR CONTROLLING TORQUE OF AN ELECTRIC MOTOR DRIVEN VEHICLE - Disclosed herein is a technique for controlling the torque of an electric motor driven vehicle. In the technique, the current speed of a drive motor, a speed boundary section, a target torque, a drive torque limit and a generation torque limit are input. The ratio of the current speed in the entire speed boundary section is calculated as a mixture ratio when the current speed is within the speed boundary section. A limit torque is calculated, reflecting the drive torque limit and the generation torque limit in the calculated mixture ratio. Of the limit torque and the target torque, the torque that is smaller in absolute value is determined as the final torque that is required of the drive motor. | 2012-11-29 |
20120299519 | FORCE PROFILING BARRIER OPERATOR SYSTEMS - Disclosed are alternate embodiments of various components of a barrier operator system. and methods of operation, including of the mechanical drive subsystem with segmented and self-locking rail unit, rail mounting supports, belt and chain drive tensioning, and drive assembly carriage and interface; the electronics and software routines for controlled operation of the various barrier operator functions; wall console communications with the barrier operator; encryption and decryption of access codes; establishment and monitoring of travel limits and barrier speed and force profiles; thermal protection of barrier operator drive motors; and establishment and control of communications from the barrier operator to accessories by way of a wireless adapter. | 2012-11-29 |
20120299520 | PREDICTIVE THERMAL PROTECTION FOR MOTORS IN BARRIER OPERATOR SYSTEMS - Disclosed are alternate embodiments of various components of a barrier operator system. and methods of operation, including of the mechanical drive subsystem with segmented and self-locking rail unit, rail mounting supports, belt and chain drive tensioning, and drive assembly carriage and interface; the electronics and software routines for controlled operation of the various barrier operator functions; wall console communications with the barrier operator; encryption and decryption of access codes; establishment and monitoring of travel limits and barrier speed and force profiles; thermal protection of barrier operator drive motors; and establishment and control of communications from the barrier operator to accessories by way of a wireless adapter. | 2012-11-29 |
20120299521 | ELECTRIC MOTOR AND METHOD FOR CONTROLLING THE SAME - An electric motor ( | 2012-11-29 |
20120299522 | TWO-QUADRANT CHOPPER - A two-quadrant chopper including a first node, a second node, a third node and a fourth node wherein an input voltage may be applied between the first node and the second node, a first output voltage may be picked off between the first node and the third node and a second output voltage may be picked off between the third node and the second node. A first capacitor is between the first node and the third node and a second capacitor is between the third node and the second node. A collector of a first transistor is connected to the first node and an emitter of the first transistor is connected to the fourth node. A cathode of a first diode is connected to the first node and an anode of the first diode is connected to the fourth node. A collector of the second transistor is connected to the fourth node and an emitter of the second transistor is connected to the second node. A cathode of a second diode is connected to the fourth node and an anode of the second diode is connected to the second node. An inductor is arranged between the third node and the fourth node. | 2012-11-29 |
20120299523 | MOTOR DRIVING DEVICE, INTEGRATED CIRCUIT DEVICE, MOTOR APPARATUS AND MOTOR DRIVING SYSTEM - A motor driving device includes a communication path selection unit, to which operation command information for controlling driving of a motor is input in a serial data format or a parallel data format via a common input path, a communication unit which includes a serial interface unit for the serial data format and a parallel interface unit for the parallel data format, and outputs a control signal based on the operation command information input via the communication path selection unit, and a driving control unit which controls driving of the motor based on the control signal. The communication path selection unit selects between outputs path to the serial interface unit and the parallel interface unit, which corresponds to the data format of the input operation command information, and outputs the input operation command information to the serial interface unit or the parallel interface unit through the selected output path. | 2012-11-29 |
20120299524 | PARALLEL DRIVE SYSTEM - To provide a parallel drive system that can reduce vibrations of an arm member and can realize positioning at a high speed even when a slave servomotor does not have a position detector, at a low cost. To achieve this object, a parallel drive system of the invention includes: a master servomotor and a slave servomotor that include linearly-moving movable units that are arranged in parallel to each other, respectively; and an arm member that forms a bridge between the two movable units. The system includes: a position detector detecting position information on the movable unit of the master servomotor; an acceleration sensor detecting acceleration information on the movable unit of the slave servomotor; a master servo amplifier controlling the master servomotor based on the position information; and a slave servo amplifier controlling the slave servomotor based on the position information and the acceleration information. | 2012-11-29 |
20120299525 | VENTILATION APPARATUS WITH FEEDBACK COMPENSATION CONTROL AND METHOD FOR OPERATING THE SAME - A ventilation apparatus with a two-section feedback compensation control and a method for operating the same are disclosed. The ventilation apparatus includes a power conversion trait ( | 2012-11-29 |
20120299526 | Perpetual EV split power system - The creation of the vehicle customized in any existing vehicle (cars, buses, trucks, trains, etc.) for energy efficiency perpetual pollution free transportation for worldwide use utilizing the windows power that naturally occurs while transporting forward converting it into electricity to keep a vehicle traveling a forward motion. | 2012-11-29 |
20120299527 | POWER GENERATION DEVICE - A power generation device for a vehicle comprises a housing adapted to removably affix to a rear of a vehicle and a rotatable support member for rotatably supporting a first device, the rotatable support member operatively connected to the housing, wherein the first device includes rotor blades for producing electrical energy when exposed to a flow of air. Further, the rotatable support member is adapted to be articulated between a range from a first position, wherein the rotatable support member and the rotor blades of the first device are disposed within the housing, and a second position, wherein the rotatable support member and the rotor blades of the first device are disposed outside of the housing. | 2012-11-29 |
20120299528 | PHOTOVOLTAIC HANDBAG AND SYSTEM - A bag includes a frame having a base, a pair of side walls, and a pair of end walls. The base, side walls, and end walls are engaged to one another to define an interior portion accessible via an open end of the frame. An inner lining is removably positionable within the frame and an outer jacket is removably positionable about the frame. The outer jacket is configured to engage the inner lining adjacent the open end of the frame to secure the outer jacket and the inner lining about the frame. A solar charging unit is mountable on the frame. The solar charging unit includes one or more solar cell arrays and one or more energy storage devices. The solar charging unit is configured to provide charging power to one or more portable electronic devices coupled thereto. | 2012-11-29 |
20120299529 | SOLAR CHARGER FOR CHARGING POWER BATTERY - A solar charger for charging a power battery is provided, comprising: a photo-sensitive unit configured to detect light intensity; a charging unit configured to receive a voltage transformed from solar energy and to boost the voltage for charging the power battery; a switch unit coupled between the charging unit and the power battery and configured to disconnect the charging unit from the power battery or connect the charging unit with the power battery; and a control unit coupled to each of the photo-sensitive unit, the switch unit, and the charging unit, and configured to switch on the charging unit and the switch unit when the light intensity is higher than a first predetermined value to charge the power battery. | 2012-11-29 |
20120299530 | POWER MANAGEMENT METHOD AND ELECTRONIC SYSTEM USING THE SAME - A power management method and an electronic system using the same are provided. The electronic system includes a display device and an auxiliary device, and has dual batteries and two subsystems. By detection and control mechanisms of the subsystems, the electronic system may allow the display device to maintain in a full power state, in the case where the external power is available or the power of the auxiliary device is sufficient. On the other hand, the auxiliary device may apply to the display device, such as a notebook computer, and the battery time may also be extended since the computer has two batteries. | 2012-11-29 |
20120299531 | Charging Service Vehicles and Methods Using Modular Batteries - Charging service vehicles and methods using modular batteries are disclosed. The service vehicles are vehicles having electric vehicle (EV) charging equipment, and removably mounted battery modules or battery module connection points. The battery modules are connected to the EV charging equipment as a source of electrical energy. Some embodiments disclose integrating the EV charging equipment with the vehicle, recharging modules through a distribution grid connection, the manner of discharging the batteries, modes of connecting and disconnecting the modules, the size and weight of the modules, quick-disconnectability of modules, control and monitoring of the modules and charging equipment, and/or ways of connecting modules to the vehicle. These features are beneficial to efficiently keep service vehicles available for EV charging through exchanging battery modules or providing additional battery modules when necessary, and may keep operators safe through de-energization of connectors and other precautions inherent in these designs. | 2012-11-29 |
20120299532 | FAST CHARGING SYSTEM AND METHOD - A system and method include detecting whether a fast charger module is coupled to a system having a processor and a memory device. If the fast charger module is coupled to the system, a fast charging current is provided from the fast charger module at multiple selectable voltage levels via an internal charger. If the fast charger module is not detected as coupled to the system, a charging current is provided from an AC adapter via the internal charger. | 2012-11-29 |
20120299533 | CIRCUIT AND METHOD ENABLING THE SHARING OF A BATTERY CHARGER WITH MULTIPLE BATTERIES - A circuit includes a first port configured for connection to a battery charger and a plurality of second ports each configured for connection to a battery to be charged. The circuit includes a corresponding switchable circuit path provided between the first port and each of the second ports. A control circuit is configured to selectively activate the switchable circuit paths so as to connect the first port to selected ones of the second ports for charging of the connected battery by the connected battery charger. | 2012-11-29 |
20120299534 | METHODS AND SYSTEMS FOR A WALL MOUNTED UNIVERSAL POWER SUPPLY - Methods and Systems for charging portable equipment having divergent power requirements and exhibiting different structural features are provided by devices having adapters to accommodate the portable equipment in the form of a wall mounted universal power supply. Adapters are configured in plate formats that fit into cradles capable of charging cell phones, video cameras, and wireless routers. | 2012-11-29 |
20120299535 | ELECTRICAL CHARGING SYSTEM - An electrical charging system having a rectifier which is supplied with energy via an input. An inverter whose alternating voltage side is connected, via phase conductors, to windings of a rotating field machine and whose direct voltage side can be connected to an energy accumulator to be charged. A first current path section passes current, supplied by the rectifier, into the charging system via the plus terminal or pole of the rectifier and the rotating field machine to the inverter. The first current path section passes the current via phase windings of the rotating field machine, such that the first current path section comprises a first switch, which can selectively interrupt the first current path section. The charging system can operate, by the first switch and at least one phase winding in the first current path section, as a step-up and step-down converter in the direction toward an energy accumulator. | 2012-11-29 |
20120299536 | MOTORIZED DUAL ENGINE POWER SYSTEM - A drive system using multi-fuel engines to provide mechanical energy as an electric generator. The electric generator provides electrical energy to an electric motor which in turn provides mechanical energy to drive a load. The electric generator also provides electric energy to storage batteries. Electrical energy may be provided from the storage batteries to the electric motor as needed. | 2012-11-29 |
20120299537 | CHARGING CONTROL METHOD FOR SECONDARY BATTERY AND CONTROL DEVICE - The disclosed device for controlling charging of a secondary battery includes a step for calculating an amount of heat generated by a secondary battery on the basis of an inter-electrode-plate voltage, internal resistance, a current value, and charging efficiency; a step for calculating an amount of allowable generated heat of the secondary battery on the basis of a temperature of the secondary battery and the cooling ability of a cooling means that cools the secondary battery; and a step for limiting the charging power of the secondary battery when the aforementioned amount of heat generated is greater than the aforementioned amount of allowable heat generation. | 2012-11-29 |
20120299538 | VEHICLE MOUNTED PERSONAL DEVICE BATTERY CHARGING STATION AND OPERATING METHODS TO AVOID INTERFERENCE - A method and apparatus are presented for inductive charging of battery operated devices in a motor vehicle, in which a passive vehicle entry and/or starting system selectively disables or reduces provision of power to a primary coil of an inductive charging station while the passive system communicates with an external user device such as a key fob controller to avoid or mitigate electromagnetic interference. | 2012-11-29 |
20120299539 | LIGHT WITH INTEGRATED INDUCTIVE CHARGER BASE STATION - A light comprises a lamp and an integrated inductive charger for coupling to a device having an inductive charger receiver connected thereto. The inductive charger receiver receives an electrical charge to charge a battery in the device. The lamp of the light provides illumination. The integrated inductive charger and the lamp are both electrically connected to a power supply. The integrated inductive charger can charge the battery in the device when the lamp is turned off. The lamp can be turned on without the integrated inductive charger providing an electrical charge. Alternatively, the integrated inductive charger can charge the battery in the device while the lamp is also turned on. | 2012-11-29 |
20120299540 | SENDER COMMUNICATIONS FOR WIRELESS POWER TRANSFER - A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet. | 2012-11-29 |
20120299541 | SENDER CONTROLLER FOR WIRELESS POWER TRANSFER - A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet. | 2012-11-29 |
20120299542 | RECEIVER CONTROLLER FOR WIRELESS POWER TRANSFER - A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet. | 2012-11-29 |
20120299543 | ELECTRICAL CHARGING SYSTEM - An electrical charging system for an energy accumulator of a motor vehicle. The electrical charging system comprises a supply input in a conductor system having at least one phase conductor and a neutral line for energy supply from a grid. The charging system also comprises a rotating field machine which, via its phase windings, is operably connected to a rectifier. The rectifier is provided on the other side for connection to the energy accumulator to be charged, the phase windings of the rotating field machine can be either selectively isolated and interconnected such that the charging system is designed for step-up connecter charging operation and step-down charging operation by way of at least one isolated phase winding and, in particular, all the isolated phase windings. | 2012-11-29 |
20120299544 | Charging Service Vehicles With Battery and Generator Sources - Charging service vehicles with battery and generator sources are disclosed. The service vehicle is a vehicle having electric vehicle (EV) charging equipment, removably mounted battery module(s) or a battery module connection point, and an alternator or generator transported by the vehicle. The alternator or generator is configured to provide power to the battery module or to the charging equipment. Battery modules used may be quick-disconnecting or have their discharge monitored and controlled by an onboard controller device, and in some cases are automotive SLI batteries. Some embodiments have connection points that can be configured as charging points to recharge battery modules on the vehicle or as discharging points to provide power to the EV charging equipment. These features are beneficial to extend the utility of batteries in a service vehicle, provide additional power for EV charging, and to efficiently utilize vehicle electronics and generation capability. | 2012-11-29 |
20120299545 | RECHARGEABLE BATTERY POWER SUPPLY STARTER AND CELL BALANCING APPARATUS - When a voltage applied to a first capacitor connected to an output of a power generator in parallel is equal to or larger than a threshold, a starter signal output from a monitoring circuit to a control circuit is set from a low level to a high level. The control circuit self-starts, and a first switch arranged between the power generator and a cell balancing circuit is turned ON. Electric power for equalizing an output voltage of each of a plurality of rechargeable batteries of a battery pack is supplied from the power generator to the battery pack via the cell balancing circuit. | 2012-11-29 |
20120299546 | UNDER VOLTAGE TOLERANT CLAMP - An apparatus comprises an integrated circuit (IC) comprising an external IC connection, an IC substrate connection, a voltage clamp circuit and an under voltage circuit. The voltage of the IC substrate connection is set to a first voltage when a voltage of the external connection of the IC is within a normal operating voltage range. The voltage clamp circuit is configured to clamp the voltage supply of one or more circuits internal to the IC to within a normal operating voltage range when the voltage of the external IC connection exceeds the normal operating voltage range. The under voltage circuit is communicatively coupled to the clamp circuit and configured to set the voltage of the substrate to a second voltage when the voltage at the external IC connection of the IC is less than zero volts. | 2012-11-29 |
20120299547 | CHARGING ASSEMBLY FOR ELECTRONIC DEVICE - A charging apparatus is used to support and charge an electronic device defining a latching slot and includes a holding portion, a placement portion and controlling portion. The placement portion engages with the holding portion and defines a latching notch aiming at the latching slot when the electronic device is received in the placement portion. The controlling portion is secured in the holding portion and includes a magnetic switch and a safety latch. The magnetic switch includes a movable shaft, and the safety latch includes a latching portion engaging with the movable shaft and pivoting to the placement portion, and a buckling portion engaging with the latching notch and the latching slot. The magnetic switch drives the movable shaft move to urge the latching portion rotating relative to the placement portion and to urge the buckling portion passing through the latching notch and engaging with the latching slot. | 2012-11-29 |
20120299548 | Battery System - There is provided a battery system having a plurality of storage batteries capable of charging and discharging, and at least two or more of the storage batteries are connected in series. The battery system includes a connecting terminal capable of connecting a storage battery in parallel with any one of the other storage batteries. The battery system is capable of replacing the storage battery without restricting the configuration to be serial connection or parallel connection, while avoiding decline of the output power. | 2012-11-29 |
20120299549 | BATTERY PACK - A battery pack is disclosed. In one embodiment, the battery pack includes a battery module including a plurality of battery units. It further includes a battery management unit including a plurality of charge terminals and a plurality of discharge terminals electrically connected to terminals of the plurality of battery units, and controlling charging/discharging of the battery module. It further includes a control unit including a plurality of discharge control terminals electrically connected to the plurality of discharge terminals, a discharge control switch installed between each of the plurality of discharge control terminals, and a charge recognizing unit, and controlling the operation of the discharge control switch according to the level of voltage detected by the charge recognizing unit. | 2012-11-29 |
20120299550 | SILICON-AIR BATTERIES - Silicon-oxygen batteries comprising a silicon anode as chemical fuel, an air-cathode for dissociating oxygen and a non-aqueous electrolyte, and applications using the same are provided. The silicon-batteries may utilize air for generating oxygen. | 2012-11-29 |
20120299551 | BATTERY HEATING CIRCUITS AND METHODS USING TRANSFORMERS - Certain embodiments of the present invention provide a battery heating circuit, comprising a switch unit | 2012-11-29 |
20120299552 | CHARGING CONTROL APPARATUS AND CHARGING CONTROL METHOD FOR BATTERY - A charging control apparatus for a battery includes a controller that controls charging of an in-vehicle lithium ion secondary battery that is charged by power based on regenerative braking performed during vehicle travel and charged by power from an external power supply; determines whether external charging, in which the battery is charged by the power from the external power supply, or the vehicle travel is underway; and when the external charging is determined to be underway, increases an upper limit value of a charging current relative to that of a case in which the vehicle travel is determined to be underway. | 2012-11-29 |
20120299553 | Bidirectional hysteretic power converter - A novel switching hysteretic bidirectional power converter is presented. The converter includes the generation of a synthetic ripple signal and feedback networks to hysteretically control the power converter both when the converter operates as a boost converter with the flow of power in one direction, and when the converter operates as a buck power converter with the flow of power in the opposite direction. | 2012-11-29 |
20120299554 | DEVICE BATTERY MANAGEMENT - Technologies and implementations for device battery management are generally disclosed. | 2012-11-29 |
20120299555 | BATTERY CELL WITH AN INTEGRATED POUCH METAL FOIL TERMINAL - A battery includes a battery cell having a pair of cell electrodes that are encased in a laminated pouch. The laminated pouch has a conductive moisture barrier layer that is sandwiched between respective electrically insulating layers. Several terminals are integrated with the pouch, including a first terminal and a second terminal that are directly connected to the first and second cell electrodes, respectively, and a third terminal that is directly connected to the conductive moister barrier layer. Other embodiments are also described and claimed. | 2012-11-29 |
20120299556 | DETERIORATION DEGREE DETERMINING APPARATUS - A deterioration degree determining apparatus determines a deterioration degree of a battery of a vehicle. The device includes an electric component activating part activating a non-driving series electric component of the vehicle by using electric power of the battery to determine the deterioration degree of the battery, a charge degree obtaining part which obtains a charge degree of the battery during a time period in which a charge state of the battery is increased to a designated degree by charging the battery after the battery is discharged for a designated period of time by causing the electric component activating part to activate the non-driving series electric component, the battery being charged by electric power generated by an electric generator of the vehicle; and a deterioration degree determining part determining the deterioration degree of the battery based on the charge degree obtained by the charge degree obtaining part. | 2012-11-29 |
20120299557 | WIRELESS POWER AND DATA TRANSMISSION SYSTEM - Provided is a wireless power data transmission system that may transmit wireless power and may transmit data using wireless power. A wireless power transmitter may include capacitors, and may convert an electrical connection of the capacitors to a parallel connection for charging. The wireless power transmitter may also convert the electrical connection of at least two of the capacitors to a series connection for discharging. | 2012-11-29 |
20120299558 | SUBMERGED RAM AIR TURBINE GENERATING SYSTEM - A submerged ram air turbine generating system adapted for use in a pod mounted to the wing of an aircraft comprises a submerged inlet extending substantially entirely around the outer surface of the pod housing, a stator in the form of adjustable or fixed inlet guide vanes which direct an air stream to a hybrid ram air turbine having alternating turbine blades and splitters, and, a number of adjustable exhaust panels which are movable with respect to one or more exhaust openings in the pod housing. | 2012-11-29 |
20120299559 | Energy Collection - An energy collection system may collect and use the energy generated by an electric field. Collection fibers are suspended from a support wire system supported by poles. The support wire system is electrically connected to a load by a connecting wire. The collection fibers may be made of any conducting material, but carbon and graphite are preferred. Diodes may be used to restrict the backflow or loss of energy. | 2012-11-29 |
20120299560 | Balancing Temperatures in A Multi-Phase DC/DC Converter - In one embodiment, a temperature compensation circuit is used in a peak current control multi-phased DC/DC converter. Each phase has a duty cycle needed to generate a regulated output voltage of the converter. The temperature for each phase in the converter is sensed to generate corresponding first signals for all the phases. The first signals are averaged to generate a second signal corresponding to the average temperature of all the phases. For each phase, a third signal is generated corresponding to the difference between the first signal and the second signal. The third signal is then used to adjust the duty cycle of each phase to control the temperature of each phase to be substantially equal to the average temperature. In the steady state, the output voltage of the converter will be the desired voltage and the temperatures of the phases will be balanced. | 2012-11-29 |
20120299561 | QUASI-RESONANT CONTROLLING AND DRIVING CIRCUIT AND METHOD FOR A FLYBACK CONVERTER - The present invention relates to a quasi-resonant controlling and driving circuit and method for a flyback converter. In one embodiment, a controlling and driving circuit for a flyback converter, can include: a differentiation circuit configured to receive a third controlling signal and a drain-source voltage of a main power switch of the flyback converter; where the drain-source voltage is configured to be differentiated by the differentiation circuit to generate a differential voltage when the third controlling signal is active within an interval that the main power switch is shut-off; a valley voltage detection circuit coupled to the differentiation circuit, and configured to receive the differential voltage; and where a valley controlling signal is configured to be generated by the valley voltage detection circuit to achieve quasi-resonant driving for the main power switch of the flyback converter when the differential voltage crosses zero with a positive slope. | 2012-11-29 |
20120299562 | SWITCHING REGULATOR AND ELECTRONIC DEVICE INCORPORATING SAME - A switching regulator includes a first switching element connected between an input terminal and an output terminal; a second switching element connected between the output terminal and a ground; a switching-time control circuit to generate a first switching-time control signal indicating finish timing of an ON-period of the first switching element, based on a ratio of a length of the ON-period of the first switching element to a sum of lengths of ON-periods of the first and second switching elements; a comparator generate a second switching-time control signal indicating finish timing of the ON-period of the second switching element when a feedback voltage is smaller than a reference voltage; and a switching-element control circuit to control switching of the first and second switching elements so that the first and second switching elements are turned on complementarily based on the first and second switching-time control signals. | 2012-11-29 |
20120299563 | POWER CONVERTER AND CONTROL METHOD USING THE SAME - A power converter and a control method using the same are provided. The converter includes a power output stage, a feedback circuit, and an input detecting circuit. The power output stage transfers an input voltage to an output voltage, and adjusts the output voltage according to a feedback signal. The feedback circuit is used for generating the feedback signal associated with the output voltage. The input detecting circuit is used for detecting a variation of the input voltage to produce an input related signal associated with the input voltage. The input related signal is used to influence the feedback signal in linkage, so as to change the output voltage of the power output stage. | 2012-11-29 |
20120299564 | Low drop-out voltage regulator with dynamic voltage control - A low dropout voltage regulator circuit that dynamically adjusts its output voltage has a voltage adjustment circuit in communication with a dynamic voltage controlling circuit for modifying the output voltage of the low dropout voltage regulator. A first amplification circuit is connected to receive an adjusted reference voltage from the voltage adjustment circuit and compare it with a feedback signal from the output voltage to provide a drive signal to a signal input terminal of a follower output transistor. An output terminal of the follower output transistor provides the output voltage of the regulation circuit. An adjustable internal load circuit applies a load current to the output terminal of the follower output transistor to increase the bandwidth of the output of the voltage regulation circuit that is sensed by a dynamic biasing sensing circuit to generate a dynamic biasing signal that modifies the bandwidth of the first amplification circuit. | 2012-11-29 |
20120299565 | Constant On-Time Switching Regulator Implementing Dual Control Loops - A control circuit for a switching regulator implements constant on-time control scheme with synchronous rectification and applies dual control loops to improve light load efficiency and enhance transient response. In one embodiment, the control circuit includes a first control loop configured to control a one-shot timer to generate a control signal to turn on the main switch when the feedback voltage is below a first reference voltage and a minimum off-time duration has expired. The control circuit further includes a second control loop configured to control the one-shot timer to generate the control signal to turn on the main switch when the feedback voltage is below a second reference voltage and the minimum off-time duration has expired and a low-side current signal has a first state indicative of a light load condition at the output node. | 2012-11-29 |
20120299566 | POWER SUPPLY - A power supply applied to an electronic device for providing power includes a transformer unit, a connector, a pulse-width modulation (PWM) control unit, and a switch unit. The connector is electrically connected with the secondary side of the transformer unit for outputting a first output voltage. The PWM control unit outputs a pulse signal with a first period. The switch unit is electrically connected between the PWM control unit and the primary side of the transformer unit. When the electronic device is connected to the power supply, the connector receives an external control signal, and the PWM control unit adjusts the pulse width of the pulse signal to a second period and transmits the pulse signal with the second period to the switch unit to control the connector to output a second output voltage to the electronic device. | 2012-11-29 |
20120299567 | Power Conversion System and Power Control Method for Reducing Cross Regulation Effect - A power conversion system and power control method for reducing cross regulation effect uses a voltage feedback adjustment circuit to modulate an error signal fed back from an output voltage so as to predict the energy of an output corresponding to its load states. While the energy delivered to an output terminal with its load remaining the same does not change, the energy delivered to an output terminal with its load changing is adjusted accordingly. The power conversion system thus effectively reduces the cross regulation effect and obtains excellent steady system output and transient response. | 2012-11-29 |
20120299568 | STEP-UP/DOWN DC-DC CONVERTER AND SWITCHING CONTROL CIRCUIT - A step-up/down DC-DC converter and switching control circuit are described. According to one implementation, a switching control circuit generates on/off signals of a first switching device supplying a current to a voltage conversion inductor of a step-up/down DC-DC converter and a second switching device receiving a current from the inductor. The switching control circuit includes an error amplifier circuit, an inverter amplifier circuit, a waveform generator circuit, a first voltage comparator circuit, a second voltage comparator circuit, and a voltage generator circuit. An inverting reference voltage supplied to the inverting amplifier circuit is set to an electric potential so as not to fall below a highest electric potential of triangle waves supplied to the first and second voltage comparator circuits. | 2012-11-29 |
20120299569 | Constant On-Time Switching Regulator Implementing Light Load Control - A control circuit for a switching regulator implements constant on-time control scheme with synchronous rectification and applies an integrated standard and light load control loop to improve light load efficiency and enhance transient response. In one embodiment, the control circuit includes a reference voltage selection circuit configured to select, based on a low-side current signal, a first reference voltage for standard load condition and a second reference voltage for light load condition as a selected reference voltage. The second reference voltage is greater than the first reference voltage. The control circuit further includes a control loop configured to generate a control signal to turn on the main switch when the feedback voltage is below the selected reference voltage and the minimum off-time duration has expired. | 2012-11-29 |
20120299570 | FIXED DEAD TIME PFC CONTROLLER - A fixed dead time PFC controller, comprising: an amplitude normalization circuit, used to generate a normalized signal according to a full-wave rectified input voltage; a comparator circuit, used to compare the normalized signal with a threshold voltage to generate a select signal, wherein the select signal exhibits a first state when the normalized signal is higher than the threshold voltage, and a second state when the normalized signal is lower than the threshold voltage; and a driving signal selection circuit, having a first input end coupled to a first driving signal, a second input end coupled to a second driving signal, a control end coupled to the select signal, and an output end for outputting a gate driving signal. | 2012-11-29 |
20120299571 | SYSTEM AND METHOD FOR PROVIDING STABLE CONTROL FOR POWER SYSTEMS - System and method for providing stable control for power systems. According to an embodiment, the present invention provides an apparatus for providing one or more control signals for a power system. The apparatus includes an input terminal for receiving an electrical energy, which can be characterized by a first input voltage. The apparatus includes a control component that is configured to generate a first control signal based on at least information associated with the first input voltage. The apparatus additionally includes an output terminal for sending the first control signal. Moreover, the apparatus includes a timing component that is coupled to the control component. The control component is configured to process at least information associated with a first value of the first input voltage at a first time and a first reference voltage and to generate a second control signal. | 2012-11-29 |
20120299572 | INPUT CURRENT REGULATOR, DRIVING METHOD THEREOF, AND DISABLE CIRCUIT THEREOF - The present invention relates to a dimmer and an input current regulator provided in a power supply. The input current regulator includes: a bleeding circuit generating a bleeding current from an input current passed through the dimmer; a sensing circuit sensing the input current, and controlling the bleeding circuit according to a sense voltage corresponding to the input current; and a biasing circuit generating a power voltage for operation of the input current regulator during operation of the power supply. The input current includes a bleeding current and a power current supplied to the power supply. | 2012-11-29 |
20120299573 | AC/DC Current Transformer - A single-coil, toroid-type current transformer circuit for detecting both AC and DC current. The current transformer circuit may include a current transformer and an oscillator electrically connected to the current transformer. The current transformer circuit may further include an open and short CT detection circuit electrically connected to the oscillator for facilitating determination of the connection and stability state of the current transformer. A processor may be electrically connected to an output of the open and short CT detection circuit for performing a series of operations on signal data generated by the open and short CT detection circuit and manipulating the operation of an electrical power system accordingly. | 2012-11-29 |
20120299574 | CALIBRATION APPARATUS FOR PROBES - An apparatus includes a connector and a connecting apparatus. The connector includes a first pin and a shell surrounding the first pin. The shell is insulated from the first pin. The connecting apparatus includes a main body, a second pin, and a third pin. The main body is connected to a bottom of the shell of the connector. First ends of the second and third pins extend through the main body, to be electrically connected to the first pin and the shell, respectively. Second ends of the second and third pins are exposed through a bottom of the main body. | 2012-11-29 |
20120299575 | LOAD REGULATION CIRCUIT AND LOAD REGULATION DEVICE EMPLOYING THE SAME - A load regulation circuit used for calibrating a voltage drop tester includes a voltage control switch, a first resistor group, a power control switch and a second resistor group electrically connected to the first resistor group through the power control switch. When the voltage control switch is switched on to different positions, the first resistor group provides different loads and load voltages for the voltage drop tester. When the power control switch is turned on or off, the first resistor group and the second resistor group provide corresponding loads and load powers for the voltage drop tester to calibrate and correct operating parameter of the voltage drop tester. The load regulation circuit can simulate and replace different electronic device to calibrate the voltage drop tester. | 2012-11-29 |
20120299576 | PHOTOVOLTAIC POWER GENERATING SYSTEM - The embodiments comprise a plural solar cell strings | 2012-11-29 |
20120299577 | COMPONENT DETECTION DEVICE AND COMPONENT DETECTION METHOD - Provided is a component detection device, which is installable on component processing means which performs a predetermined operation to a conductive component interposed between one conductive member and another conductive member, the component detection device comprising a detection circuit ( | 2012-11-29 |
20120299578 | Safety switching device for setting a safety-related device to a safe state - A safety switching device, with which a safety-related device, can be set into a safe state. The safety switching device has a microprocessor or microcontroller, which can set an electric drive to be protected into a safe state both if an emergency circuit breaker, protective door switch, and/or two-hand switch is activated and also if there is faulty operation of the safety-related device or electric drive. For this purpose, the microprocessor is implemented such that it can determine from at least one analog signal to be measured whether a predetermined parameter lies outside a predetermined operating range. In addition, the microprocessor can be a component of a safety device which is constructed for multiple-channel control of a safety-related electric drive. In this way, the safety switching device can respond to several safety functions independent of each other in order to set an electric drive into a safe state. | 2012-11-29 |
20120299579 | TEST AND MEASUREMENT INSTRUMENT INCLUDING ASYNCHRONOUS TIME-INTERLEAVED DIGITIZER USING HARMONIC MIXING - A test and measurement instrument including a splitter configured to split an input signal having a particular bandwidth into a plurality of split signals, each split signal including substantially the entire bandwidth of the input signal; a plurality of harmonic mixers, each harmonic mixer configured to mix an associated split signal of the plurality of split signals with an associated harmonic signal to generate an associated mixed signal; and a plurality of digitizers, each digitizer configured to digitize a mixed signal of an associated harmonic mixer of the plurality of harmonic mixers. A first-order harmonic of at least one harmonic signal associated with the harmonic mixers is different from an effective sample rate of at least one of the digitizers. | 2012-11-29 |
20120299580 | TRANSIENT RECOVERY CIRCUIT FOR SWITCHING DEVICES - A transient recovery circuit for switching devices. The transient recovery circuit includes a detecting circuit for detecting a rapid transient in an output voltage of a switching device by detecting a rate of the output voltage transient; an auxiliary controlling circuit in a feedback loop of the switching device for correcting the output voltage by changing a bandwidth of the feedback loop if the rapid transient is detected; and an initializing circuit for initializing the feedback loop to expected operating points in a continuous conduction mode after correcting the output voltage. | 2012-11-29 |
20120299581 | DIGITAL MULTIMETER - A digital multimeter includes a single chip processor, a sound chip connected to the single chip processor, a signal amplifying circuit, a speaker connected to the signal amplifying circuit, and a power source for providing electrical energy for the digital multimeter. The single chip processor collects high and low level signals, and converts the signals into codes which the sound chip can recognize, and transmits the codes to the sound chip. The sound chip converts the codes into audio signals and transmits the audio signals to the signal amplifying circuit. The signal amplifying circuit amplifies the audio signals and outputs the amplified audio signals to the speaker. The amplified audio signals reports the measurement values of the digital multimeter. | 2012-11-29 |
20120299582 | INPUT POWER MEASURING DEVICE - An input power measuring device includes a board with an edge connector, a first dual inline memory modules (DIMM) socket, a resistor, a differential amplifier circuit, a voltage dividing circuit, a display screen, and a controller. When the edge connector is inserted into a second DIMM socket of a motherboard and the motherboard is powered on, the resistor samples first current, and converts the first current into a first voltage. The differential amplifier circuit amplifiers the first current to a second current. The voltage dividing circuit divides the first voltage, and outputs a second voltage. The controller converts the second current into a third current, converts the second voltage into a third voltage, and calculates a power according to the third current and the third voltage. | 2012-11-29 |
20120299583 | SPEED SENSOR AUTHORITY FOR AND METHOD OF MEASURING SPEED OF ROTATION - Sensor arrangement for measuring a rotation speed of a salient member of a rotatable body comprising a first electrode arrangement providing a first input, a second electrode arrangement providing a second input different from the first input, the first and second electrode arrangements configured so noise in the first and second inputs is substantially the same, and wherein variations in the first and second inputs are caused by rotation of the rotatable body and the salient member past the first and second electrode arrangements, an output arrangement for receiving the first and second inputs, and for providing an output proportional to a difference between the first and second inputs, and a retaining member for retaining one or more of the first and second electrode arrangements and output arrangement, the speed of rotation of the salient member measurable from a variation in the output caused by rotation of that salient member. | 2012-11-29 |
20120299584 | Measurement System of Ferromagnetic Particles - A system by which the proportion of ferromagnetic particles in a dielectric medium is measured. A magnetic field is generated by two signals in the medium: a low frequency feed and a relatively high frequency excitation. The feed magnetizes the ferromagnetic particles in the medium to the nonlinear range of the magnetization curve. The excitation is generated so that its spectrum is relatively wide and it is dense with frequency components. The level of the excitation is so high that the magnetic flux density in the medium corresponding to the excitation fluctuates nonlinearly, when the feed is at its peak value or near this. The magnetic field of the medium is measured by a secondary winding, and from the response signal produced by the sensor is detected the part resulting from the magnetic non-linearity, which part is the output signal. In the detection the response is multiplied by the signal, which arises magnetic field and includes the same random fluctuation as the response. The higher the proportion of the ferromagnetic particles in the medium is, the higher the level of the output signal. The secondary winding comprises several portions so that the parasitic voltages caused by the stray capacitances compensate each other. The measurement is real-time and accuracy, because the excitation is a random signal by nature, in which case its spectrum includes, instead of one frequency component, densely frequency components in a certain band. The result is a 20-30 dB higher signal-to-noise ratio in the response and output signal compared with the known technique. A device according to the method is suitable for use in an industrial plant and moving vehicles, in which there are interfering fields and the temperature can be high. | 2012-11-29 |
20120299585 | SENSOR AND METHOD FOR PRODUCING THE SENSOR - An inductively operating sensor, particularly for measuring distances and positions of a metallic object, comprising at least a coil, a ferromagnetic or ferritic core and perhaps a housing comprising a sensor element, with the core being embedded in a single or multi-layered ceramic and jointly with the ceramic forming a coil body and with the coil body and the core being connected to each other in a form-fitting fashion. Furthermore, a method is suggested for producing such a sensor. | 2012-11-29 |
20120299586 | MAGNETIC POSITION SENSOR ASSEMBLY FOR MEASUREMENT OF ROTATIONAL ANGULAR POSITION OF A ROTATING STRUCTURE - A magnetic rotational position sensor assembly for measurement of a rotational angular position of a rotating structure. The sensor assembly includes a shaft member extending along a primary rotational axis for primary rotational movement in response to rotation of the rotating structure, a motion conversion member structured and configured to transform the primary rotational movement of the shaft member into secondary movement, a magnet member secured to the motion conversion member for displacement along a travel path in response to the converted secondary movement of the motion conversion member, and a non-contact magnetic sensor that senses a change in position of the magnet member by sensing a corresponding variation in the magnetic field during displacement of the magnet member along the travel path in response to rotation of the rotating structure, wherein the magnetic sensor generates an output signal representative of a relative rotational angular position of the rotating structure. | 2012-11-29 |
20120299587 | THREE-AXIS MAGNETIC SENSORS - Systems and methods for three-axis magnetic sensors are provided. In one embodiment, a three-axis magnetic sensor formed on a single substrate comprises: an in-plane two-axis magnetic sensor comprising at least one of either a magnetic-resistance (MR) sensor or a magnetic-inductive (MI) sensor formed on the single substrate; and an out-of-plane magnetic sensor comprising a Hall effect sensor formed on the single substrate. The in-plane two-axis magnetic sensor measures magnetic fields in a first plane parallel to a plane of the substrate, and the out-of-plane magnetic sensor measures magnetic fields along an axis orthogonal to the first plane. | 2012-11-29 |
20120299588 | Circuits and Methods for Processing a Signal Generated by a Plurality of Measuring Devices - Circuits and methods use a feedback arrangement to select one or more measuring devices from a plurality of measuring devices in order to rapidly identify a direction of a sensed parameter. In some embodiments, the plurality of measuring devices corresponds to a plurality of magnetic field sensing elements and the sensed parameter is a magnetic field. | 2012-11-29 |
20120299589 | ELECTRIC CURRENT DETECTOR AND CORE COMPONENT USED THEREFOR - In an electric current detector according to the present invention, an annular core | 2012-11-29 |
20120299590 | Method for Self-Calibrated Parallel Magnetic Resonance Image Reconstruction - A method for producing a time-series of images of a subject with a magnetic resonance imaging (MRI) system is provided. The MRI system is used to acquire a time-series undersampled k-space data set, in which a selected number of k-space data subsets in the time-series data set includes both image data and calibration data. Moreover, the calibration data in each of these selected number of k-space data subsets includes a portion of a desired total amount of calibration data. For example, each of these selected number of k-space data subsets include calibration data that is acquired by sampling a different partition of a calibration data sampling pattern. A time-series of images of the subject is then produced by reconstructing images of the subject from the acquired time-series of undersampled k-space data sets. These images are substantially free of undersampling artifacts. | 2012-11-29 |
20120299591 | MARGIN ASSESSMENT OF EX-VIVO SAMPLE | 2012-11-29 |
20120299592 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD FOR MAGNETIC RESONANCE IMAGING - An embodiment of a magnetic resonance imaging apparatus is configured to carry out plural series of imaging while changing plural imaging conditions for a patient on a series basis, and has a storage unit configured to group plural parameter types related to some of the plural imaging conditions for carrying out the series of imaging into a plurality of groups, and to store a parameter value corresponding to one of the parameter types on a group basis, and has a controller which specifies a first series included in the plural series and a group to be used in the first series to read one of the parameter values belonging to the specified group from the storage unit, the controller setting the read parameter value as a parameter value related to some of plural imaging conditions to be used in a second series included in the plural series. | 2012-11-29 |
20120299593 | LOCAL COIL FOR A MAGNETIC RESONANCE DEVICE - A local coil for a magnetic resonance device includes a double resonance conductor loop arrangement having at least one conductor loop, and a converter apparatus configured for converting operating energy received at a first resonance frequency into an operating voltage. The local coil also includes an electronics arrangement operated with the operating voltage for processing magnetic resonance signals received at a second resonance frequency. | 2012-11-29 |
20120299594 | ANTENNA DEVICE - There is provided a technique for securing a comfortable examination space in a tunnel type MRI apparatus without increasing the manufacturing cost of the MRI apparatus and sacrificing performance thereof. In an RF coil provided with a hollow-shaped outer conductive element and a strip-shaped conductive element disposed along the outer conductive element in the axial direction, meander lines constituting the strip-shaped conductive element are disposed at uneven distances from the outer conductive element to secure an internal space. In order to obtain uniform sensitivity at the center of the RF coil, the strip-shaped conductive element is constituted with N of connected meander lines, and length of the strip-shaped conductive element is adjusted so that, in the strip-shaped conductive element resonating at resonance frequency of the antenna, nodes are formed in a number of (M+1)×N−1, wherein M is 0 or a natural number of 1 or larger. | 2012-11-29 |
20120299595 | HIGH RESOLUTION RESISTIVITY EARTH IMAGER - An imaging tool made includes a pad whose curvature is chosen based on the expected range of borehole radius and the pad size so as to maintain the maximum standoff below a desired value. The curvature may be adjusted using fasteners. | 2012-11-29 |
20120299596 | Method and Apparatus for Measuring Borehole Mud Resistivity - Apparatuses, methods for manufacturing an apparatus and methods for measuring a fluid resistivity are provided. An apparatus for measuring a fluid resistivity includes a fluid column defining structure, two current injecting electrodes, voltage measurement electrodes, and two additional electrodes. The fluid column defining structure is configured to allow a fluid, whose resistivity is to be measured, to fill a fluid column inside the fluid column defining structure. The two current injecting electrodes are configured to inject a known current into the fluid column. The voltage measurement electrodes are configured to measure a voltage across a measurement column included in the fluid column. The two additional electrodes disposed inside the fluid column defining structure, outside of the positions of the two current injecting electrodes in the longitudinal direction are electrically connected to each other. | 2012-11-29 |
20120299597 | BATTERY SYSTEM - In a battery system of the invention, a BMS calculates a maximum charge rate representing a maximum value from present charge rates of plurality of secondary batteries constituting an assembled battery and a minimum charge rate. Then, the BMS generates a normal waveform signal in which the maximum charge rate is determined as a maximum peak and the minimum charge rate is determined as a minimum peak as a waveform signal which is displayed in a charge rate display range where a full charge rate in the case of a full charge state of the secondary battery is determined as an upper limit and an empty charge rate in the case of an empty charge state of the secondary battery is determined as a lower limit. Then, the BMS displays the normal waveform signal in the charge rate display range. | 2012-11-29 |
20120299598 | Systems and Methods for Determining Electrical Ground Faults - Certain embodiments of the invention may include systems and methods for determining electrical ground faults. According to an example embodiment of the invention, a method is provided determining ground leakage electrical faults. The method includes providing a voltage source having a positive lead in communication with a first contact conductor and a negative lead in communication with a second field conductor, wherein the first contact conductor is connected to a ground through a first resistor Rp, and wherein the second field conductor is connected to the ground through a second resistor Rn; monitoring a first voltage potential associated with the first contact conductor; and determining a condition associated with the first contact conductor, based at least in part on the monitored first voltage potential. | 2012-11-29 |
20120299599 | ELECTRIC LEAKAGE SENSING APPARATUS - An electric leakage sensing apparatus includes a pulse generator that supplies a pulse to a coupling capacitor, a voltage detector that detects a voltage at the coupling capacitor, an electric leakage determination unit that compares the voltage detected by the voltage detector to a threshold and determines existence or non-existence of an electric leakage of a DC power supply based on a comparison result, a pre-check circuit that puts the DC power supply into a pseudo electric leakage state, a diagnostic unit that diagnoses whether the electric leakage determination unit determines that the electric leakage exists when the DC power supply is put into the pseudo electric leakage state, and terminals to which cables are connected. A current route from the pulse generator to the pre-check circuit through the coupling capacitor and the cables is formed when the DC power supply is put into the pseudo electric leakage state. | 2012-11-29 |
20120299600 | TEST APPARATUS AND TEST METHOD - A test apparatus that tests a device under test outputting a data signal and a clock signal indicating a timing at which the data signal is to be sampled, the test apparatus comprising a data acquiring section that acquires the data signal output by the device under test, at a timing corresponding to a sampling clock corresponding to the clock signal output by the device under test or a timing of a timing signal corresponding to a test period of the test apparatus; a judging section that judges pass/fail of the device under test, based on a result of a comparison between the data signal acquired by the data acquiring section and an expected value; and a designating section that designates whether the data acquiring section acquires the data signal at the timing corresponding to the sampling clock or at the timing corresponding to the timing signal. | 2012-11-29 |
20120299601 | METHOD OF TESTING A SPUR SHORT CIRCUIT PROTECTION SYSTEM AND DIAGNOSTIC DEVICE FOR PERFORMING THE METHOD - A method of testing a short circuit protection system applied to a spur of an electric circuit, in which the short circuit protection system comprises a current limiting means which applies a current limit to said spur if the current thereon exceeds a spur current trip level, in which the electric circuit comprises a power supply and an isolation means adapted to fully or partially isolate the power supply from the electric circuit if the current thereon exceeds a power supply trip level for longer than a dead-band period, in which said method comprises the following steps: i) applying a test current demand to said short circuit protection system which has a current and duration sufficient for said spur current trip level to be exceeded, but a current insufficient for said power supply trip level to be exceeded and/or a duration insufficient to exceed said deadband period, ii) detecting if the current limiting means applies said current limit or not during said test current demand. | 2012-11-29 |
20120299602 | ELECTRONIC DEVICE, AND OPEN CIRCUIT DETECTING SYSTEM, DETECTING METHOD THEREOF - An open circuit detecting system configured to connect to an object circuit for getting an electrical signal through a virtual ground induced by characteristic impedance of a parasitic capacitor and determining whether the object circuit is open according to the electrical signal. | 2012-11-29 |
20120299603 | ON-LINE MONITORING SYSTEM OF INSULATION LOSSES FOR UNDERGROUND POWER CABLES - A monitoring system adapted to assess insulation losses of an underground power cable includes a cable circuit having first and second, spaced-apart terminals. The cable circuit is disposed along a section of the underground power cable. The system further includes a communications device adapted to transmit data gathered at the first and second terminals, and a processor adapted to receive and process the data measured at the same time with the synchronization device and transmitted from the communications device. | 2012-11-29 |
20120299604 | Electric field sensor and implements comprising same - A system has a battery serving as a DC voltage source for electrical equipment of the system, a sensor for sensing an electric field (e-field) generated by the DC voltage source, sensor signal processing circuitry connected to the sensor for receiving a sensor output signal therefrom, and an e-field indicating device coupled to the sensor signal processing circuitry for receiving a processed DC e-field signal therefrom. The sensor outputs the sensor output signal, which is dependent upon a distance between the sensor and the DC voltage source. The sensor signal processing circuitry derives a processed direct current (DC) e-field signal from the sensor output signal. The e-field indicating device outputs the e-field indicating signal in response to the processed DC e-field signal indicating that the e-field exceeds an e-field threshold level. | 2012-11-29 |
20120299605 | OCCUPANT DETECTION SENSOR AND MANUFACTURING METHOD OF THE SAME - An occupant detection sensor for detecting an occupant seating state on a seat comprises: a contact pressure sensor section including a pair of opposed electrodes arranged parallel to a seating face part of the seat; an electrostatic sensor section including a main electrode arranged parallel to the seating face part of the seat and a guard electrode arranged between the main electrode and a seat frame, the guard electrode and the main electrode having a same electric potential; a capacitance measuring section for measuring a first capacitance between the opposed electrodes and a second capacitance between the main electrode and ground; and an occupant distinguishing section for distinguishing a seating state of the occupant based on the first capacitance and the second capacitance. | 2012-11-29 |
20120299606 | TEST APPARATUS AND TEST METHOD - Provided is a test apparatus that tests a device under test outputting a data signal and a clock signal indicating a timing at which the data signal is to be sampled, the test apparatus comprising a data acquiring section that acquires the data signal output by the device under test, at a timing corresponding to the clock signal output by the device under test; a masking section that masks the acquisition of data by the data acquiring section, while the device under test is not outputting the clock signal; and a judging section that judges pass/fail of the device under test based on a result of a comparison between the data signal acquired by the data acquiring section and an expected value. | 2012-11-29 |
20120299607 | Testing of Defibrillator Electrodes - Systems and methods for testing defibrillator electrode conductivity. Connection for electrically connecting electrodes and defibrillation signal generator connected to the electrodes. Patient impedance measurement system comprising patient signal generator and patient signal receiver. A defibrillator controller connected to defibrillation signal generator and patient impedance measurement system. An electrode test system with control signal device connected to the patient signal receiver which generates at least one control signal causing the patient signal receiver to change from a patient signal receive state to an electrode test signal receive state, a test commence signal device connected to the patient signal generator which generates at least one test commence signal causing the patient signal generator to send a test signal to the electrodes and an electrode test signal device connected to the patient signal receiver which receives an electrode test signal and processes the signal to determine a test result. | 2012-11-29 |
20120299608 | METHOD OF TESTING RELIABILITY OF SEMICONDUCTOR DEVICE - The invention provides a method of testing reliability of a semiconductor device, wherein the semiconductor device has negative bias temperature instability NBTI. The method comprises steps of: measuring a NBTI curve of a first set of semiconductor devices; measuring 1/f noise power spectrum density and drain current at a predetermined frequency for the first set of the semiconductor devices, under a condition that the first set of the semiconductor devices are biased at a gate electric field; measuring an equivalent oxide thickness EOT of gate dielectric of the first set of the semiconductor devices; measuring 1/f noise power spectrum density and drain current at the predetermined frequency for a second set of semiconductor devices, under a condition that the second set of the semiconductor devices are biased at the gate electric field; measuring an EOT of gate dielectric of the second set of the semiconductor devices; and evaluating a degradation characteristic of the second set of the semiconductor devices by using the NBTI curve of a first set of the semiconductor devices. The method saves the time required for testing the reliability of a large numbers of semiconductor devices, and will not cause damages to the second set of semiconductor devices. | 2012-11-29 |
20120299609 | POSITIONING AND SOCKETING FOR SEMICONDUCTOR DICE - Devices and methods useful for testing bare and packaged semiconductor dice are provided. As integrated circuit chips become smaller and increasingly complex, the interface presented by a chip for connectivity with power supplies and other components of the system into which it is integrated similarly becomes smaller and more complex. Embodiments of the invention provide micron-scale accuracy alignment capabilities for fine pitch device first level interconnect areas. Embodiments of the invention employ air-bearings to effectuate the movement and alignment of a device under test with a testing interface. Additionally, testing interfaces comprising membranes supported by thermal fluids are provided. | 2012-11-29 |
20120299610 | METHOD AND APPARATUS FOR TESTING A SEMICONDUCTOR WAFER - A method for testing a semiconductor wafer comprises providing a semiconductor wafer. The semiconductor wafer comprises a protruding annular rim, a first redistribution structure disposed on the front side of the semiconductor wafer, a second redistribution structure disposed on the rear side of the semiconductor wafer within the protruding annular rim and a plurality of vias extending from the front side to the rear side. A first probe is contacted to the first redistribution structure on the front side and a second probe is contacted to the second redistribution structure on the rear side. The first probe is in contact with the first redistribution structure and the second probe is in contact with the second redistribution structure at the same time. | 2012-11-29 |
20120299611 | PROBE ASSEMBLY - A probe assembly includes a probe and an assistant measuring device. The probe includes a main body, a metal tip, a first cable, and a second cable. The assistant measuring device includes a base, a first pole, a second pole, an annular wall, a first input line, and a second input line. The first input line is connected to the first pole. The second input line is connected to the base. When the metal tip is inserted into the hole of the second pole, the metal tip is engaged with the second pole. The main body is engaged with the annular wall. The first cable is connected to the first input line through the metal tip, and the second and first poles. The second cable is connected to the second input line through the main body, the annular wall, and the base. | 2012-11-29 |
20120299612 | ELASTIC MICRO HIGH FREQUENCY PROBE - An elastic micro high frequency probe includes a conductor, which includes a stationary body and a movable body. The stationary body has a conductive terminal, a contacting end, and a guider. The movable body has a conductive terminal, a spring mechanism, and a guider. The spring mechanism is connected to the stationary body and to one conductive terminal. The second guider connects to the spring mechanism in such a manner that the compression direction of the spring mechanism is confined by a guiding rail. Since the width of the spring mechanism is not limited by the first and second guiders, the width of the spring mechanism can be enlarged to maximize within limited space. Therefore, the HF probe as a whole can have shortest length while acquiring the predetermined total length of the elastic stroke, such that the transmission performance of the high frequency signals can be effectively enhanced. | 2012-11-29 |
20120299613 | JIG FOR SEMICONDUCTOR TEST - A jig for use in a semiconductor test includes: a base on which a probe pin and an insulating material are placed, the insulating material surrounding the probe pin in plan view; and a stage arranged to face a surface of the base on which the probe pin and the insulating material are placed. The stage is capable of holding a test object on a surface of the stage facing the base. When the base and the stage move in a direction in which they go closer to each other while the test object is placed on the stage, the probe pin comes into contact with an electrode formed on the test object and the insulating material comes into contact with the test object. | 2012-11-29 |