05th week of 2011 patent applcation highlights part 17 |
Patent application number | Title | Published |
20110025212 | ELECTRONIC DEVICE INCLUDING AN ORGANIC DIODE AND A SHUNT AND A PROCESS OF FORMING THE SAME - An electronic device can include an organic diode and a shunt that allows a significant current to bypass the organic diode, wherein the shunt is separate from the organic diode. Alternatively, an electronic device can include an organic diode lying along a first conduction path. The electronic device can also include a resistive member lying along a second conduction path that is parallel to the first conduction path. In another aspect, a process of forming an electronic device can include forming a first conductive member, forming a resistive member over the first conductive member, and forming an organic semiconductor layer over the first conductive member. The process can also include forming a second conductive member over the resistive member and the organic semiconductor layer, such that the resistive member and the organic semiconductor layer lie along parallel conduction paths between the first and second conductive members. | 2011-02-03 |
20110025213 | WISDOM TECH LED CURRENT BALANCE ASSEMBLY - A wisdom tech LED current balance assembly comprises a DC current source connected with a bridge converter to convert DC current into AC current so as to be as an AC current source; a transformer series comprising at least one primary side and a plurality of secondary sides; the at least one primary side of the transformer series serially connected to the AC current source; and each secondary side being serially connected to a bank of LEDs which are connected in series. Only one PWM IC is used to balance a plurality of LED banks which are arranged in parallel. Furthermore, the whole circuit structure is simple without using balance MOSFET and thus heat dissipation is low. | 2011-02-03 |
20110025214 | Lighting system and control method thereof - A lighting system is provided. The lighting system includes a plurality of lamp modules connected in series, wherein each of the lamp modules includes a decoder and a lamp. When a first lamp module of the lamp modules receives a trigger signal, a first decoder of the first lamp module configures a first identification code for a first lamp of the first lamp module, and provides a configuring signal to a second decoder of a second lamp module of the lamp modules to configure a second identification code for a second lamp of the second lamp module. The second lamp module is a next lamp module following the first lamp module. | 2011-02-03 |
20110025215 | MULTICOLOR LED SEQUENCER - A multicolored LED luminaire module is provided that can be controlled using a single driver and only two wires. The LED luminaire module comprises a plurality of LEDs and a sequencer. The sequencer connects each LED to the circuit in a predetermined order. Synchronously with the sequencer, the driver transmits a control signal comprising a time division multiplexed (TDM) signal that combines the driving currents for each LED into one TDM signal. The sequencer and TDM rate are sufficiently fast such that the light emitted by the LED luminaire appears to be the combined light from all the LEDs. | 2011-02-03 |
20110025216 | Light Emitting Diode (LED) Driver And Associated LED Driving Method - The LED driver of the present invention comprises multiple LED arrays, at least one dividing diode, a power module, a driving module, at least one switch pair and a voltage sensing module, Each LED array comprises multiple LEDs connected in series. The dividing diode is mounted between adjacent LED arrays. The power module is connected to an external power source and forms a pulsating direct current (DC) voltage. The driving module receives the pulsating DC voltage outputs a constant current to the LED arrays, The voltage sensing module closes and opens the switch pairs that changes electrical configuration of the LED arrays. The LED driving method of the present invention comprises setting multiple voltage drops and at least one reference voltage; sensing an incoming voltage to compare with the reference voltage; and changing ways of connections of LED arrays based on the reference voltage and the incoming voltage. | 2011-02-03 |
20110025217 | INRUSH CURRENT LIMITER FOR AN LED DRIVER - An inrush current limiter for use with an LED driver including a current limiting device, a bypass switch device, and a switch drive. The current limiting device is placed in the input current path of the LED driver to limit input current to a predetermined maximum level in response to an AC conductive angle modulated voltage. The bypass switch device is coupled in parallel with the current limit device. The switch drive turns on the bypass switch device to at least partially bypass the current limiting device as a voltage level of an input of a switching converter rises. The input current remains sufficiently high without exceeding the maximum level. The switch drive is implemented with a delay network driven either by a separate transformer winding or by a snubber network. The delay network may have a delay based on the delay caused by the current limiting device. | 2011-02-03 |
20110025218 | Mercury lamp and mercury lamp lighting apparatus - In an ultrahigh pressure mercury lamp that encloses mercury is enclosed in an arc tube, an electrode has a head portion whose diameter is larger than that of an axis portion and a cylindrical portion formed to project from and extend, integrally with a back end face of the head portion, wherein an inner circumference face the cylindrical portion is apart from the axis portion so as to surround the axis portion. During an alternating current lighting, a relational expression of d/(1/f)×1/2≧3.8 is satisfied, wherein a frequency, which relates to an anode operation period that is the longest in the anode operation period during which one electrode serves as an anode, is represented as f, and a distance in an axial direction from the leading edge position of the head portion of the electrode to a boundary position between the head portion and the cylindrical portion is represented as d. | 2011-02-03 |
20110025219 | Discharge lamp lighting apparatus - In a discharge lamp lighting apparatus, in a starting sequence of a discharge lamp, while a frequency control circuit generates a inverter driving signal corresponding to resonance frequency of a resonant circuit, a power supply circuit outputs non-load open circuit voltage that is sufficient to maintain electric discharge, even when a boosting action accompanying a resonance phenomena disappears, and then a periodic drive circuit generates the inverter driving signal to gradually decrease frequency of the inverter from a frequency corresponding to the resonance frequency of the resonant circuit, until the frequency of the inverter reaches a first threshold frequency, and wherein when the frequency of the inverter reaches the first threshold frequency, while the periodic drive circuit generates the inverter driving signal so that the frequency of the inverter turns into a stable lighting frequency, the power supply circuit outputs current that is sufficient to maintain the electric discharge of the discharge lamp. | 2011-02-03 |
20110025220 | HIGH EFFICIENCY GAS FILLED LAMP - The invention relates to a gas filled lamp and to a method of operating the same, the gas filled lamp including a tube filled with a gas or combination of gases, the tube comprising an anode; and a cathode spaced apart from the anode wherein an electric field can be applied across the anode and the cathode so as to cause an electron to move from the cathode to the anode. The gas filled lamp further includes magnetising means to provide a magnetic field across the tube, the direction of the magnetic field being substantially perpendicular to the direction of the electric field, wherein the ratio between the electric and magnetic fields is substantially predetermined depending upon the gas or combination of gases within the tube. | 2011-02-03 |
20110025221 | ULTRAVIOLET GENERATING DEVICE AND LIGHTING DEVICE USING THE SAME - Device generating high-luminance and highly-efficient ultraviolet rays by applying polyphase alternating current discharge plasma in a multi-poled magnetic field to a light source for generating ultraviolet rays and using a usual molecular gas other than mercury and rare gases. The inside of a flat container | 2011-02-03 |
20110025222 | HIGH PRESSURE DISCHARGE LAMP BALLAST AND LIGHT SOURCE APPARATUS - In a frequency control for a high pressure discharge lamp ballast, short-term increase and decrease of a lamp voltage are suppressed. The high pressure discharge lamp ballast drives a high pressure discharge lamp with a synthesized-waveform alternating current made of multiple frequency components, the high pressure discharge lamp having a pair of electrodes disposed to face each other. The ballast includes: a control means for controlling a component contained ratio of the multiple frequency components per unit time; an output means for applying a synthesized-waveform current in accordance with the component contained ratio to the high pressure discharge lamp; and detection means for detecting a lamp parameter of the high pressure discharge lamp. The control circuit is configured to shift the component contained ratio to a first component contained ratio when the lamp parameter is in a first state, and shift the component contained ratio to a second component contained ratio when the lamp parameter is in a second state. The control circuit is configured to change the component contained ratio stepwise when the component contained ratio is shifted from the first component contained ratio to the second component contained ratio, or when the component contained ratio is shifted from the second component contained ratio to the first component contained ratio. | 2011-02-03 |
20110025223 | HIGH PRESSURE DISCHARGE LAMP BALLAST AND LIGHT SOURCE APPARATUS - Even when usable driving frequencies are limited, a lamp voltage is appropriately controlled. A high pressure discharge lamp ballast performs driving with a synthesized current waveform comprising a combination of first and second sets of current waveforms. The ballast includes: a control means for controlling content rates of each of the sets per unit time; a detection means for detecting a rotation synchronization signal for a color wheel; an output means for applying a synthesized current waveform in accordance with the synchronization signal and the content rates to a high pressure discharge lamp; and a detection means for detecting a lamp voltage. The sets are each in a waveform inverted so as to correspond to at least one of a rotational speed and segment positions of color wheel. A period of each of the first and second sets has a length equivalent to one rotation of the color wheel. The number of inversions of the second set is larger than the number of inversions of the first set. The ballast is configured in that the content rate of the second set is set to R | 2011-02-03 |
20110025224 | LIGHT EMITTING DEVICE INCLUDING SEMICONDUCTOR NANOCRYSTALS - A voltage driven light emitting device includes an electroluminescent material and semiconductor nanocrystals, luminescent organic small molecules, mixtures of emissive species molecules, or conductive polymers. The semiconductor nanocrystals, luminescent organic small molecules, mixtures of emissive species molecules, or conductive polymers emit light. The semiconductor nanocrystals, luminescent organic small molecules, mixtures of emissive species molecules, or conductive polymers can be doped to provide desired emission characteristics. Devices that share a substrate and emit more than one color may be conveniently made. | 2011-02-03 |
20110025225 | Light-Emitting Diode Driver Circuit and Lighting Apparatus - A light-emitting diode driver circuit includes: a first-rectifier circuit to output a first-rectified voltage; a transformer including primary and secondary coils and an auxiliary coil inductively coupled to the primary or secondary coils, the primary coil being applied with the first-rectified voltage; a transistor connected in series to the primary coil; a second-rectifier circuit to output a second-rectified voltage obtained by rectifying a voltage generated in the auxiliary coil; a capacitor to be charged with the second-rectified voltage; and a control circuit to control on and off of the transistor based on a charging voltage of the capacitor so that the charging voltage becomes equal to a predetermined voltage, the secondary coil outputting a voltage that varies with a frequency corresponding to a frequency of the first-rectified voltage and that corresponds to a turns ratio between the primary and secondary coils, as a voltage for driving a light-emitting diode. | 2011-02-03 |
20110025226 | CONTROL DEVICE FOR CONTROLLING A DISCHARGE LAMP - An electronic starter ( | 2011-02-03 |
20110025227 | Drive Circuit to adjust a luminance of a light emitting element based on a PWM signal, and a portable information terminal including the drive circuit - A drive circuit ( | 2011-02-03 |
20110025228 | WAVEFORM DETECTION AND COMBINED STEP AND LINEAR DIM CONTROL - The present invention relates to a detection circuit ( | 2011-02-03 |
20110025229 | MULTI-FUNCTION PLANAR LIGHT SOURCE ILLUMINATION LAMP - The invention discloses a multi-function planar light source illumination lamp having a containing space and comprising a first lighting unit, a second lighting unit, a light guide unit and a control unit. The first lighting unit is used for generating a first light source arranged as a linear element. The second lighting unit is used for generating a second light source arranged as a punctual array. The light guide unit, disposed in the containing space, is used for providing the multi-function planar light source illumination lamp to generate a homogeneous planar light source. The control unit generates a control signal for controlling the first lighting unit and the second lighting unit to generate a luminous flux of the first light source and the second light source. | 2011-02-03 |
20110025230 | DRIVER DEVICE FOR LEDS - The present invention relates to a driver device ( | 2011-02-03 |
20110025231 | METHOD AND APPARATUS FOR RETROFITTING HID LAMPS WITH SYSTEM TO PERIODICALLY ADJUST OPERATING WATTAGE - A method, apparatus, and system for increasing usable light from a high intensity lighting fixture to a target area without an increase in energy use. In one aspect, the circuit is retrofitted into an existing lamp circuit that allows selective change in operating power or wattage to the lamp, over a substantial period of operation time, to save energy. In one aspect operating wattage of the lamp would be reduced. In another aspect of the invention, reduction in operating wattage is accomplished by a switchable capacitance in electrical communication with the lamp circuit. | 2011-02-03 |
20110025232 | SEAMLESS FOLDABLE DISPLAY DEVICE - A foldable display device is designed so that a junction between at least two display panels connected to each other is not visibly seen. The display device displays an image on a plurality of display panels that are connected together. Pixels near the junction between every two adjacent display panels of the at least two display panels are smaller and have a higher brightness than the other pixels. | 2011-02-03 |
20110025233 | Method and Apparatus For Reduction of Excess Current During Initial Firing of Arc Lamp Circuits - Arc lamps, including low-pressure arc lamps, are coupled to drive circuitry operable to provide drive signals that reduce or eliminate excess current when the lamp arc is struck. The drive circuitry controls the rate at which a lamp can fire by actively controlling the rate the voltage pulse increases. Prior to enabling the drive pulse burst, the frequency is shifted only part of the way towards the normal operating frequency in a single step, then allowed to approach the normal operating frequency in a fashion that is selected based at least in part upon the specific type of lamp being used. Typically, the rate of change of the frequency is linear. | 2011-02-03 |
20110025234 | LIGHT-EMITTING-ELEMENT DRIVING CIRCUIT - A light-emitting-element driving circuit is provided which comprises a voltage boosting circuit unit which supplies a boosted voltage to a light-emitting element, a current circuit unit which drives the light-emitting element with a current, a normal feedback loop path through which a voltage of the light-emitting element is input as a feedback voltage to the voltage boosting circuit unit, a backup feedback loop path through which a voltage of the light-emitting element is input as the feedback voltage to the voltage boosting circuit unit, an abnormality detection circuit unit which compares the feedback voltage which is input through the normal feedback loop path to the voltage boosting circuit unit and a predetermined determination voltage, to detect abnormality, and a switching circuit which switches from the normal feedback loop path to the backup feedback loop path when the abnormality detection circuit unit has detected the abnormality. | 2011-02-03 |
20110025235 | METHOD AND DEVICE FOR CONTROLLING THE POWER SUPPLY OF AN ELECTROMAGNETIC ACTUATOR - In an electromagnetic actuator, which comprises a stator, a translator movable along a guiding element, and an excitation coil for generating an electromagnetic force which moves the translator, the coil is supplied with an electric current obtained according to the sum of a first electric signal, the time pattern of which defines a desired motion of the translator, with a second electric signal, which is generated only at each of given level variations of the first electric signal by modulating an oscillating function with a decreasing, time limited function, so that the second signal has an amplitude envelope having a certain maximum width such that the electromagnetic force is subjected to a higher increase of the static friction force between the translator and the guiding element. | 2011-02-03 |
20110025236 | POWER CONVERSION EQUIPMENT - Power conversion equipment includes an electric power converting section that converts DC electric power to multiphase AC electric power and feeds the converted multiphase AC electric power to a multiphase AC motor. A first short-circuit section includes a first switch disposed between a first DC power supply and the electric power converting section. A second short-circuit section includes a second switch disposed between at least one of an electric power feeding section and the electric power input section in the first DC power supply, or between a multiphase AC output point of the electric power converting section and the multiphase AC motor. A switch control section controls the first switch and the second switch such that the first and second switches are prevented from being brought into the closed-state simultaneously. | 2011-02-03 |
20110025237 | Method and Control System for Controlling a Brushless Electric Motor - The present invention relates to a method and a system for controlling a permanent magnet excited, brushless, electronically commutated, three-phase electric motor ( | 2011-02-03 |
20110025238 | MOTOR CONTROLLER AND ELECTRONIC POWER STEERING APPARATUS - A command current setting portion has a target value corrector that calculates d-axis and q-axis current command values idc, iqc that are to be supplied to an open-loop controller, based on d-axis and q-axis current target values id*, iq*. When d-axis and q-axis voltage target value vd*, vq* calculated from the d-axis and q-axis current target values id*, iq* by the motor circuit equations exceed a voltage limit, this target value corrector | 2011-02-03 |
20110025239 | Electro-motive machine using halbach array and electrons trapped in electromagnetic providing current - A Halbach array is radially disposed in an environment optimized for efficiency and controlled for efficient generation and use of power in order to generate, establish, and maintain a desired level of rotational energy with enhanced efficiency. | 2011-02-03 |
20110025240 | Power Conversion Device - A power conversion device comprises a power conversion unit of a three phase full bridge type including upper arm switching devices and lower arm switching devices, and a controller that outputs drive signals to these switching devices. This power conversion device forms alternately a first interval in which the upper arm switching devices and the lower arm switching devices are switched to ON for different phases, and a second interval in which, for all phases, either the upper arm switching devices or the lower arm switching devices are switched to ON, according to electrical angle. | 2011-02-03 |
20110025241 | SENSORLESS CONTROL METHOD OF HIGH PERFORMANCE PERMANENT MAGNET SYNCHRONOUS MOTOR DURING EMERGENCY OPERATION - The present invention provides a position sensorless control method of a high performance permanent magnet synchronous motor during emergency operation, which can accurately detect a magnetic pole position of the synchronous motor based on a position sensorless vector control using an adaptive observer configured based on a permanent magnet synchronous motor model. | 2011-02-03 |
20110025242 | MOTOR CONTROL METHOD, MOTOR CONTROL DEVICE, FAN DEVICE, COMPRESSOR, AND PUMP DEVICE - Triggered by a position detection sensor detecting that a rotor is positioned at any one of K predetermined electrical angles, for example, 60°, 180°, and 300°, a voltage vector to be given to a motor is updated. When, for example, the rotation frequency is equal to or higher than a specified value, the predetermined electrical angles is changed into M, for example, into one angle of 60°. | 2011-02-03 |
20110025243 | ROBUST ROTATIONAL POSITION ALIGNMENT USING A RELATIVE POSITION ENCODER - A robust method for detecting a relative position of a feedback device, such as an encoder or resolver, coupled to a shaft, such as a motor shaft, is provided. To detect the relative position, electrical commands are issued in an open loop mode to spin the motor shaft an amount greater than the apparent rotational angle between two consecutive markers of the position feedback device, such that the net mechanical rotation is equal to or greater than the total rotational angle between two consecutive markers. | 2011-02-03 |
20110025244 | Electric Power Steering System - In an electric power steering system, an ECU | 2011-02-03 |
20110025245 | ELECTRIC MOTOR WITH POWER SUPPLY CIRCUIT SUPPLYING ISOLATED ELECTRIC POWER - Circuitry for controlling motors, such as a brushless motor (BLM), is disclosed. The circuitry may comprise one or more inputs for receiving rotor position signals from one or more Hall effect sensors that detect the position of, for example, a BLM rotor. The circuitry may also comprise an input for receiving a pulse width modulated speed control signal. The circuitry generates one or more drive signals, each of which may comprise a logical combination (e.g., a logical AND combination) of the speed control signal and a rotor position signal, for controlling power switches that are coupled to electromagnets of the BLM. | 2011-02-03 |
20110025246 | POWER CONVERTING APPARATUS - A converter and an inverter are connected via a clamp circuit. The converter performs commutation in accordance with any of a first commutation mode in which trapezoidal waves are compared with a carrier and a 120-degree conduction mode. A diode of the clamp circuit is short-circuited by a shorting switch. The shorting switch is rendered conductive when a power factor reduces or a power supply voltage reduces, and capacitors of the clamp circuit are connected in series between DC power supply lines. The converter performs commutation in accordance with the 120-degree conduction mode, not in accordance with the first commutation mode, while the shorting switch is conductive. | 2011-02-03 |
20110025247 | METHOD AND SYSTEM FOR TESTING ELECTRIC MOTORS - Method and systems for testing an electric motor are provided. A switching circuit coupled to the motor is operated in a first mode causing current to flow through the motor such that the motor is actuated with near zero torque. A magnitude of the current is repeatedly adjusted between first and second values. The current flow through the motor is monitored. | 2011-02-03 |
20110025248 | MULTI-PHASE DC/DC BOOST CONVERTER - A method and an apparatus are provided for balancing current for each of a plurality of similar phases of a DC/DC boost converter. The method includes the step of measuring a voltage drop of each of the plurality of similar phases at predetermined times by measuring the voltage drop across each phase switching device when current is flowing through the switch. The method also includes the steps of calculating current information for each of the plurality of similar phases in response to the voltage drop measured for each of the plurality of similar phases and balancing current for each of the plurality of similar phases in response to the current information of each of the plurality of similar phases. | 2011-02-03 |
20110025249 | MOTOR DRIVE HAVING INTEGRAL PROGRAMMABLE LOGIC CONTROLLER - A system, in one embodiment, includes a drive having a housing, a stator disposed in the housing, a rotor disposed in the stator, and a programmable logic controller disposed inside, mounted on, or in general proximity to the housing. In another embodiment, a system includes a network, a first motor having a first integral programmable logic controller coupled to the network, and a second motor having a second integral programmable logic controller coupled to the network. In a further embodiment, a system includes a rotary machine having a rotor and a stator disposed concentric with one another, a microprocessor, memory coupled to the microprocessor, a power supply coupled to the microprocessor and the memory, and a machine sensor coupled to the microprocessor. | 2011-02-03 |
20110025250 | METHOD FOR CONTROLLING A HOLDING FORCE AGAINST, AND LIMITING IMPACT WITH TRAVEL LIMIT POSITIONS - An actuator includes a motor operated by a controller through a pulse width modulation drive signal applied to a drive circuit that drives the motor. The actuator has an output shaft connected to a coupling structure for manipulating a device such as a variable geometry turbine (VGT) or an exhaust gas recirculation (EGR) valve. The device has a range of motion limited by first and second mechanical stops located at opposing low and high ends of the range. The controller learns the location of the mechanical stops during calibration. An external control unit transmits a desired position to the actuator. A protocol allows the external control unit to implicitly request a positioning mode by virtue of what value range the desired position falls into. The controller is configured to limit the drive signal to a non-harmful level when one of the positioning modes calls for pushing the device against one of the stops. | 2011-02-03 |
20110025251 | MOTOR DRIVING DEVICE - A motor-driving device comprising: a switching element to control a current passed through a first coil of a stepping motor including the first and a second coils electromagnetically coupled; a rectifier element to be energized in a ground-side-to-second-coil direction; a coil-current-detection unit to detect a current passed through the first coil; a regeneration-current-detection unit to detect a current passed through the rectifier element; a control unit to turn off the switching element when the current passed through the first coil reaches a predetermined-set current based on a detection result of the coil-current-detection unit; and a negative-current-detection unit to detect whether a negative current greater in absolute value than a predetermined-set value is passed through the rectifier element based on a detection result of the regeneration-current-detection unit, the control unit keeping the switching element off when the negative current is not passed, based on a detection result of the negative-current-detection unit. | 2011-02-03 |
20110025252 | STEPPING MOTOR DRIVE APPARATUS AND STEPPING MOTOR DRIVING METHOD - In order to provide a stepping motor drive apparatus and a stepping motor driving method that attain a constant rotation angle per step at every angular position despite variations in load and that are free of rotational fluctuation, a drive control unit of a stepping motor drive apparatus drives a driving coil of one phase of a stepping motor ( | 2011-02-03 |
20110025253 | Single Switch Controlled Switched Reluctance Machine - An improved single-switch control circuit for use in a multi-phase switched reluctance machine is provided. The control circuit includes at least first and second phase windings, a switch, a capacitor, and a diode. The capacitor may have a polarity opposite that of a power source in the control circuit. The first winding may be connected in series with the switch and connected in parallel with a circuit block comprising the second winding. The second winding may be connected in parallel with the capacitor and in series with the diode. In operation, the switch may be used to redirect current from the first winding to the second winding. The capacitor can become charged by the redirected current until it eventually stores enough energy to essentially discontinue current flow in the first winding. Then, the capacitor can discharge its stored energy as a current through the second winding. In this manner, substantially all of the energy from the first winding can be transferred to the second winding. | 2011-02-03 |
20110025254 | SINGLE PHASE INDUCTION MOTOR - The present invention relates to a single phase induction motor, and more particularly, to a single phase induction motor, wherein a variable resistance element which can change a winding number of a main winding or an auxiliary winding capable of producing a magnetic field at the time of starting is connected in parallel to some portion of the main winding or the auxiliary winding. A single phase induction motor including a stator composed of a core, a main winding and an auxiliary winding, and a rotor rotated by a mutual electromagnetic force by the stator comprises a resistance variable element connected in parallel to some portion of the main winding. In addition, a single phase induction motor including a stator composed of a core, a main winding and an auxiliary winding, and a rotor rotated by a mutual electromagnetic force by the stator comprises a capacitor connected in series to the auxiliary winding, and a resistance variable element connected in parallel to some portion of the auxiliary winding and the capacitor. | 2011-02-03 |
20110025255 | Solar Power System For Charging Battery Pack - A solar power system has a charging device. The charging device is powered by a solar cell to charge a battery pack having a secondary cell. The charging device has input voltage detection circuit that detects an input voltage from the solar cell; switching circuit that converts the input voltage to supply a charging current to the battery pack; charging current detection circuit that detects the charging current; and control circuit that controls the switching circuit to change the input voltage in order that a resultant charging current becomes suitable for charging the battery pack. | 2011-02-03 |
20110025256 | ELECTRIC VEHICLE - This invention concerns a vehicle with four wheels, automobile type, non polluting, propelled by electric engine, fed by batteries which take energy to recharge mainly from photovoltaic panels, passive wind rotors which work together with an aerodynamic accelerator (in air at a faster speed in compare to the speed of the wind in atmosphere also when the vehicle is still), and small hydroelectric rotors. | 2011-02-03 |
20110025257 | CIRCUIT FOR EXTRACTING POWER FROM A BATTERY AND AN ELECTRONIC APPARATUS COMPRISING THE CIRCUIT - The present invention provides a circuit for extracting power from a battery and an electronic apparatus comprising the circuit. The circuit of the invention includes a first connecting unit, a second connecting unit and a processor. The first connecting unit is used for connecting a dry battery, and the second connecting unit is used for connecting a rechargeable battery. Additionally, the processor is connected to the first connecting unit and the second connecting unit respectively, for controlling the dry battery to charge the rechargeable battery, and for controlling the rechargeable battery to supply power to a load. | 2011-02-03 |
20110025258 | SYSTEM FOR SCHEDULING BATTERY CHARGE AND DISCHARGE - Effective scheduling of battery charge and discharge activities, by making the most of battery characteristics, can extend the battery pack's operation-time and lifetime. A system and method for scheduling battery activities is disclosed. This framework dynamically adapts battery activities to load demands and to the condition of individual battery cells, thereby extending the battery pack's operation-time and making them robust to anomalous voltage imbalances. The scheduling framework includes two components. An adaptive filter estimates the upcoming load demand. Based on the estimated load demand, a scheduler can determine the number of parallel-connected battery cells to be discharged. The scheduler also effectively partitions the battery cells in a pack, allowing the battery cells to be simultaneously charged and discharged in coordination with a reconfigurable battery circuit. | 2011-02-03 |
20110025259 | BATTERY CHARGER - The battery charger has a case | 2011-02-03 |
20110025260 | CHARGER FOR VEHICLE USE - This invention relates to an improved charger for vehicle use including an plug of cigarette lighter; a first power cord with one end electrically connected to the plug of cigarette lighter; a transformer that is electrically connected to another end of the first power cord; a second power cord with one end connected to the transformer and has an insertion terminal at another end; and a connection unit with insertion hole at one end to be electrically connected to the insertion terminal of the second power cord, and another end of the connection unit is configured with an insertion part which can easily and conveniently work with various prior-specified power adapter of portable electronic devices. | 2011-02-03 |
20110025261 | PORTABLE ELECTRONIC DEVICE AND CAPACITIVE CHARGER PROVIDING DATA TRANSFER AND ASSOCIATED METHODS - The electronic apparatus includes a portable electronic device and a charger for capacitively charging the portable electronic device when the portable electronic device is temporarily placed adjacent the charger. The portable electronic device includes a device data communication unit and an associated battery, and a pair of device capacitive electrodes, defining a device conductive footprint, to receive a charging signal to charge the battery. The charger includes a base having an area larger than the device conductive footprint and able to receive the portable electronic device thereon in a plurality of different positions, and an array of charger capacitive electrodes carried by the base. A charger controller selectively drives only the charger capacitive electrodes within the device conductive footprint with a charging signal to capacitively charge the battery. A charger data communication unit communicates with the device data communication unit via the charger capacitive electrodes and device capacitive electrodes, e.g. by modulating data onto the charging signal. | 2011-02-03 |
20110025262 | Multifunctional Charger System and Method - An adapter for providing a source of power to a mobile device through an industry standard port is provided. In accordance with one aspect of the invention, the adapter comprises a plug unit, a power converter, a primary connector, and an identification subsystem. The plug unit is operative to couple the adapter to a power socket and operative to receive energy from the power socket. The power converter is electrically coupled to the plug unit and is operable to regulate the received energy from the power socket and to output a power requirement to the mobile device. The primary connector is electrically coupled to the power converter and is operative to couple to the mobile device and to deliver the outputted power requirement to the mobile device. The identification subsystem is electrically coupled to the primary connector and is operative to provide an identification signal. | 2011-02-03 |
20110025263 | UNIVERSAL SYSTEM FOR CHARGING AT LEAST ONE PORTABLE DEVICE - A universal system for recharging at least one portable appliance, the dedication of which is being capable from a device ( | 2011-02-03 |
20110025264 | ELECTRONIC DEVICE, CHARGER, AND ELECTRONIC DEVICE CHARGING SYSTEM - An object of the present invention is to provide an electronic device which is capable of conducting a proximity noncontact communication even if charging of a secondary battery is not fully completed and also whose secondary battery never falls into an overdischarge state during the proximity noncontact communication. An electronic device ( | 2011-02-03 |
20110025265 | ELECTRONIC DEVICE, CHARGER, AND ELECTRONIC DEVICE CHARGING SYSTEM - An object of the present invention is to provide an electronic device capable of receiving payment of a charge required for a charging process even though a secondary battery of the electronic device ran into an overdischarge state and also extricating itself from the overdischarge state, and a charger used for the same. A charger ( | 2011-02-03 |
20110025266 | CHARGING STRUCTURE OF UNSHELTERED ELECTRIC VEHICLE - A charging structure of an unsheltered electric vehicle has a vehicle with at least a frame, a handling unit and a power unit. The power unit has an output terminal which is one side connected with a mobile and rotary cover by a holding strip to have a water-tight protection, an adapting unit which connects the power unit via the output terminal, and an insertion part which is a movable connection with the output terminal. A rotary cover provides a rotatable connection and a water-tight protection for both combinations of the insertion part and above-mentioned output terminal, a power cord which is electrically connected with the insertion part, and at least a connector electrically connected with the other end of the power cord. | 2011-02-03 |
20110025267 | SYSTEMS, METHODS AND APPARATUS FOR VEHICLE BATTERY CHARGING - A system for charging a battery within an at least partially electric vehicle. The system includes a charging device wherein the charging device configured to electrically connect to the at least partially electric vehicle and charge at least one battery by a predetermined amount. The system also includes a network configured to determine the location of the charging device. | 2011-02-03 |
20110025268 | REPLACING DISCHARGED BATTERIES IN ELECTRIC VEHICLES - A quick economical re-energizing system of Electric Vehicles {EV}5 intended for replacing discharged electric batteries of Electric Vehicles by charged ones, when there are no “on-boared” means for the continuous charging of batteries, and provided said EV are suitable for the offered re-energizing system, the technique of replacing the discharged batteries by charged ones, automatically {or semi-automatically}, being equivalent to the regular known re-fueling of cars, as regarding the duration of the process and the convenience of drivers and passengers, said re-energizing being enabled due to unique capabilities deriving from a newly invented electric automotive system, like allowing all the four traveling wheels of EV to swivel about their steering axes, at 90 degrees from the travel direction, or like self-elevating and lowering the EVs body in relation to the traveling wheels, as required for the offered re-energizing process of Electric Vehicles. | 2011-02-03 |
20110025269 | BATTERY CHARGER - A battery charger includes an accommodating part for accommodating a group of cells and a plurality of cell assemblies respectively having charging terminals for charging the group of cells; a first terminal plate formed in the surface of the accommodating part to come into contact with the charging terminal of the first cell assembly and a second terminal plate coming into contact with the second cell assembly; a switching element for interrupting voltage from an ac power source; a unit for rectifying and smoothing the voltage interrupted by the switching element; and a unit for applying the smoothed dc voltage respectively to the first and second terminal plates. | 2011-02-03 |
20110025270 | BATTERY PACK MANAGER - An apparatus for lessening variations in a state of charge (SOC) or remaining capacity of a battery pack. The battery pack is made up of a plurality of blocks, and slave units are provided for the respective blocks. Terminal voltages of the blocks are detected and supplied to a master unit. Variations arise in a state of charge or remaining capacity of the respective blocks for reasons of differences among the slave units in terms of electric power consumption. The master unit controls deactivation timing of the respective slave units incidental to turning off of a vehicle ignition according to the variations in the state of charge of the respective blocks. The deactivation timing is delayed much longer with an increase in the state of charge, thereby equalizing the state of charge or the remaining capacity. | 2011-02-03 |
20110025271 | STATE MONITORING APPARATUS FOR ASSEMBLED BATTERY - The state monitoring apparatus includes a high-voltage side monitoring section having monitoring units assigned to respective unit batteries and a low-voltage side monitoring section having a control device. The monitoring units measures the voltages of the unit batteries upon reception of a voltage measurement command transmitted from the control device, and determines whether or not the measured voltages are within a predetermined range. This determination is transmitted to the control device. If this determination is negative, the control device limits a charge/discharge current of the assembled battery, and then causes the monitoring units to transmit the measured voltages. | 2011-02-03 |
20110025272 | CHARGING METHOD, CHARGING DEVICE, AND BATTERY PACK - A charging method is a method for charging assembled cells formed by connecting two or more cells in series. Specifically, constant-current charging is performed on the assembled cells, and when the inter-terminal voltage value of one of the cells reaches a first voltage value, the charging current value is reduced from the first current value to a second current value, and constant-current charging in which the charging current value is the second current value is performed on the assembled cells. | 2011-02-03 |
20110025273 | MONITORING AND CONTROL SYSTEM FOR AN ELECTRICAL STORAGE SYSTEM OF A VEHICLE - A method of monitoring an electrical storage system. The method includes providing an electrical storage element defining a total storage capacity and having a state of charge cooperatively defining a total stored charge of the electrical storage element, determining a total stored charge value representative of the total stored charge of the electrical storage element, varying the total stored charge by charging the electrical storage element from the power source via an electrical charge or discharging the electrical storage element to the load via an electrical discharge, and updating the total stored charge value after varying the total stored charge. | 2011-02-03 |
20110025274 | ENERGY ACCUMULATOR - The invention relates to an energy storage, containing at least one battery cell, and at least one Zener diode being disposed parallel to the at least one battery cell, wherein the cathode of the Zener diode is connected to the plus terminal of at least one battery cell, and the anode is connected to the minus terminal of at least one battery cell. | 2011-02-03 |
20110025275 | ELECTRIC ENERGY STORAGE DEVICE - Provided is an electric energy storage device capable of improving a charging efficiency when electric power supplied with an input current having a current value repeatedly exhibiting peaks and valleys is to be storaged by using a secondary battery and an electric double-layer capacitor. The electric energy storage device includes: an electric double-layer capacitor; and a battery unit including at least one secondary battery, the battery unit being connected in parallel to the electric double-layer capacitor, in which: a ratio of an internal resistance of the electric double-layer capacitor to an internal resistance of the battery unit is determined according to parameters relating to the input current. | 2011-02-03 |
20110025276 | CHARGE CONTROL CIRCUIT - A charge control circuit used to control a battery to charge includes a power management unit, a voltage converting unit, a voltage comparison unit, and a switch control unit. The power management unit supplies a voltage to the battery. The voltage converting unit provides a reference voltage to the voltage comparison unit. The voltage comparison unit compares a battery voltage obtained from the battery with the reference voltage, and sends a comparison to the switch control unit. The switch control unit controls the power management unit to charge or stop charging the battery according to the comparison. | 2011-02-03 |
20110025277 | SWITCHING BATTERY CHARGING SYSTEMS AND METHODS - Embodiments of the present invention include techniques for charging a battery using a switching regulator. Some embodiments include programmable switching battery chargers that can be configured using digital techniques. Other embodiments include switching battery chargers that modify the battery current based on sensed circuit conditions such as battery voltage or input current to the switching regulator. In one embodiment, the present invention includes a USB battery charger. | 2011-02-03 |
20110025278 | METHOD AND APPARATUS FOR IMPLEMENTING A POWER CONVERTER INPUT TERMINAL VOLTAGE DISCHARGE CIRCUIT - A circuit to discharge a capacitance between input terminals of a power system is disclosed. An example circuit includes a control circuit coupled to an input of a power system. The control circuit is coupled to detect whether an electrical energy source is coupled to an input of the power system. A switch is also included and is coupled to the control circuit and to the input of the power system. The control circuit is coupled to drive the switch in a first operating mode when the electrical energy source is coupled to the input of the power system. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input of the power system. A capacitance coupled between input terminals of the input of the power system is discharged through the switch to a threshold voltage in less than a maximum period of time from when the electrical power source is uncoupled from the input terminals of the power system. | 2011-02-03 |
20110025279 | POWER SUPPLY CIRCUIT AND SEMICONDUCTOR DEVICE - A power supply circuit comprises: a first voltage booster circuit that receives a first clock signal having a fixed frequency, and supplies a voltage to a prescribed circuit; and a second voltage booster circuit that receives a second clock signal having a frequency corresponding to an operating frequency of the prescribed circuit, and supplies a voltage to the prescribed circuit. | 2011-02-03 |
20110025280 | REGULATOR HAVING PHASE COMPENSATION CIRCUIT - A regulator circuit includes an output transistor that generates an output current in accordance with a control voltage that is applied to a control terminal of the output transistor. A differential amplifier provides feedback control of the control voltage in accordance with a level of the output current. A phase compensation circuit is connected to the differential amplifier and the control terminal of the output transistor. The phase compensation circuit adjusts an output impedance of the differential amplifier. The phase compensation circuit includes a variable resistor that decreases the output impedance of the differential amplifier when the output current increases. | 2011-02-03 |
20110025281 | Transient Differential Switching Regulator - The present invention provides a transient differential switching regulator for a DC power supply. In one aspect, an output of the regulator is provided between a positive voltage line and a return line. A switching circuit switches the regulator between a normal mode, wherein the output voltage is controlled at a set-point voltage, and a current mode wherein the output current is controlled so as not to exceed a peak current limit. In one aspect, an output of the regulator is provided between a positive voltage line and a return line. A first inductance is disposed in the positive voltage line, and a second inductance is disposed in the return line. In another aspect a current detecting circuit is configured to perform dual functions of measuring the DC current so as to protect against an over-current condition arising during the normal operation mode and detecting high transient current conditions. | 2011-02-03 |
20110025282 | DRIVING CIRCUIT FOR AN ELECTRIC LOAD AND ELECTRIC SYSTEM COMPRISING THE CIRCUIT - An electronic circuit includes a node coupled to a load to be driven, and a power device, which can be switched between activation and deactivation and coupled to the node. The circuit further includes a current generator having an output connected to the node and that can be enabled to generate current at least when the power device is deactivated. The circuit also includes a comparator for comparing an electric voltage of the node with a reference voltage and is configured to generate a comparison signal based thereon. | 2011-02-03 |
20110025283 | DC-DC CONVERTER, CONTROL CIRCUIT, AND POWER SUPPLY CONTROL METHOD - A DC-DC converter includes a first amplifier that amplifies a first difference between a first reference voltage and a feedback voltage corresponding to an output voltage, a second amplifier that amplifies a second difference between the first reference voltage and an integrated value of the feedback voltage, and a controller that controls a switching circuit to change the output voltage when the first difference reaches the second different. | 2011-02-03 |
20110025284 | MULTI-PHASE DC-TO-DC CONVERTER WITH DAISY CHAINED PULSE WIDTH MODULATION GENERATORS - A multi-phase DC-DC converter is disclosed. The DC-DC converter has a plurality of phases, each with a separate PWM generator for driving a totem pole of transistors. A master PWM generator operates off of a master clock signal. The remainder of the phases are slaved to the master PWM generator. | 2011-02-03 |
20110025285 | POWER SUPPLY VOLTAGE CONTROLLING CIRCUIT FOR USE IN SUBTHRESHOLD DIGITAL CMOS CIRCUIT INCLUDING MINUTE CURRENT GENERATOR AND CONTROLLED OUTPUT VOLTAGE GENERATOR CIRCUIT - In a circuit and method for correcting a delay variation of a subthreshold CMOS circuit operating in a subthreshold region, a power supply voltage controlling circuit is provided for supplying a controlled output voltage to a subthreshold digital CMOS circuit as a controlled power supply voltage. The subthreshold digital CMOS circuit includes CMOS circuits each having a pMOSFET and an nMOSFET and operating in a subthreshold region with a predetermined delay time, and further includes a minute current generator circuit generating a predetermined minute current based on a power supply voltage, and a controlled output voltage generator circuit generating a controlled output voltage for correcting a variation in the delay time based on a generated minute current and supplying the controlled output voltage to the subthreshold digital CMOS circuit as a controlled power supply voltage including a change in each threshold voltage of the pMOSFET and the nMOSFET. | 2011-02-03 |
20110025286 | Control Circuit For a Primary Controlled Switched Mode Power Supply with Improved Accuracy of the Voltage Control and Primary Controlled Switched Mode Power Supply - The invention under consideration refers to a controller for a primary-side regulated control power supply unit for the regulation of the output of the primary regulated control power supply unit. The invention also concerns a method for the operation of a control power supply unit of the generic type and a pertinent control power supply unit. The controller comprises a control output (B), which can be connected with the control input of a primary-side switch (Q | 2011-02-03 |
20110025287 | REGULATOR CIRCUIT - An object of the present invention is to reduce variations in the value of the output potential VDD of a regulator circuit including a bias circuit referring threshold voltage. The regulator circuit includes a bias circuit referring threshold voltage, an error amplifier, an output control circuit, and a feedback voltage divider. Further, the regulator circuit uses an n-type transistor and p-type transistor which offer small variations in the value obtained by Vthn+|Vthp|. The feedback voltage divider includes a diode-connected p-type transistor. The increase in the threshold voltage Vthn of n-type transistors leads to the increase in the threshold voltage Vthp of the p-type transistor. Therefore, the on resistance of the p-type transistor is reduced. As a result, the fluctuations in the output potential VDD is suppressed. | 2011-02-03 |
20110025288 | METHOD AND APPARATUS FOR MAINTAINING A CONSTANT LOAD CURRENT WITH LINE VOLTAGE IN A SWITCH MODE POWER SUPPLY - A power supply regulator including a variable current limit threshold that increases during an on time of a switch. In one aspect, a power supply regulator includes a comparator coupled to receive a signal representative of a current through a switch during an on time of the switch. The comparator is further coupled to receive a variable current limit threshold that increases during the on time of the switch. The power supply regulator also includes a feedback circuit coupled to receive a feedback signal representative of an output of a power supply. A control circuit is also included and is coupled to the switch, to an output of the comparator, and to an output of the feedback circuit. The control circuit is coupled to control a switching of the switch in response the output of the comparator and the output of the feedback circuit to regulate the output of the power supply. | 2011-02-03 |
20110025289 | TWO-STAGE SWITCHING POWER SUPPLY - A two-stage switching power supply includes a first-stage power circuit, a bus capacitor, a second-stage power circuit and a power control unit. The first-stage power circuit is connected to a power bus for receiving an input voltage, and includes a first switching circuit. The input voltage is converted into a bus voltage by alternately conducting and shutting off the first switching circuit. The second-stage power circuit is connected to the power bus for receiving the bus voltage, and includes a second switching circuit. The power control unit is used for controlling operations of the first switching circuit and the second switching circuit. The bus voltage is dynamically adjusted according to electricity consumption amount of the system circuit under control of the power control unit. An operating mode of the second switching circuit of the second-stage power circuit is changed according to the electricity consumption amount of the system circuit. | 2011-02-03 |
20110025290 | DC Power Converting Circuit and Method Thereof - A direct current (DC) converting circuit includes a DC input end, for receiving a DC input voltage; a DC output end, for providing a predetermined DC voltage; a switch, coupled between the DC input end and the DC output end, for providing a direct path; a DC-DC step-down unit, coupled between the DC input end and the DC output end, for providing a step-down voltage path; and a control unit, coupled to the switch and the DC-DC step-down unit, for detecting the DC input voltage and selecting either the direct path or the step-down voltage path to provide the predetermined DC voltage at the DC output end. The DC power converting circuit can be applied in power supply circuits of multi-media players or TV setup boxes to convert DC input voltage including 5V, 9V or 12V DC voltages to a predetermined DC voltage. | 2011-02-03 |
20110025291 | Start-Up Circuits for Starting Up Bandgap Reference Circuits - An integrated circuit structure includes a bandgap reference circuit and a start-up circuit. The bandgap reference circuit includes a positive power supply node and a PMOS transistor including a source coupled to the positive power supply node. The start-up circuit is configured to be turned on during a start-up stage of the bandgap reference circuit, and to be turned off after the start-up stage. The start-up circuit includes a switch configured to interconnect a gate and a drain of the PMOS transistor during the start-up stage, and to disconnect the gate of the PMOS transistor from the drain of the PMOS transistor after the start-up stage. | 2011-02-03 |
20110025292 | METHOD AND APPARATUS FOR PROVIDING POWER CONVERSION WITH PARALLEL FUNCTION - An approach is provided for generating a plurality of output signals by a plurality of power modules in response to the respective temperature signals of said modules. Each of the power modules is arranged in parallel, each being configured to provide power conversion. Temperature signals representing temperatures of the plurality of power modules are shared among the plurality of power modules to attain a temperature balance. | 2011-02-03 |
20110025293 | STRUCTURAL STUD FINDER DEVICE AND METHOD - A device for locating structural stud members beneath a surface such as a shingled roof. The device includes a support block for receiving a probe member, the probe member extending from the support block at a selected arc of curvature terminating at a point spaced apart from the support block. An indicator member is fixed to the support block, the indicator member extending from the support block parallel to the probe member and having an end coextensive with the termination point of the probe member such that the indicator member provides a user with the orientation and termination point of the probe member when the probe member is beneath the surface. In use, a hole created within the surface and the support block rotated on the surface until the probe member abuts an edge of a structural stud member. | 2011-02-03 |
20110025294 | METHOD FOR ANALYZING ELECTROLYTIC COPPER PLATING SOLUTION - Effective fillability and the uniformity electrodeposition of a copper electroplating solution is judged by determining the time-dependent potential change thereof at a cathode current density of 0.1-20 A/dm | 2011-02-03 |
20110025295 | SYSTEM AND METHOD FOR CALIBRATION OF MEASUREMENTS OF INTERACTED EM SIGNALS IN REAL TIME - A method of calibrating a measurement of electromagnetic (EM) signals. The method comprises separating at least one reference signal component from an EM signal, delaying at least one of the EM signal and the at least one reference signal component, extracting the EM signal after an interaction with a target object and the at least one reference signal component after at least one interaction with at least one reference element from different time slots in a reception, and calibrating a measurement of the interacted EM signal by a signal analysis of the extracted and interacted at least one reference signal component. | 2011-02-03 |
20110025296 | High Frequency Circuit Analyser - An analyser for measuring the response of an electronic device (DUT | 2011-02-03 |
20110025297 | PARAMETER CALCULATING APPARATUS AND SIMULATION APPARATUS - A parameter calculating apparatus includes a signal generator that generates at least two input signals which each contain different frequency components; a signal inputting unit that inputs the input signals generated by the signal generator to respective ports of a test object at the same time; a frequency component deconstructing unit that deconstructs an output signal which is obtained by synthesizing the input signals input by the signal inputting unit and output from an output port into the frequency components; and a parameter calculator that calculates parameters which indicate transfer coefficients among ports of the test object based on output values of the frequency components obtained via the deconstruction performed by the frequency component deconstructing unit and on input values of the frequency components of the input signals input at the same time to a plurality of ports. | 2011-02-03 |
20110025298 | DETERMINING DEGRADED INSULATING ABILITY IN INSULATION PROVIDED BETWEEN TWO OBJECTS OF AN INDUCTIVELY OPERATING ELEMENT - A method, device and computer program product for determining the change in insulating ability of the insulation provided between two objects of an inductively operating element, where at least one of the objects is a winding. The device includes an analyzing unit, which obtains a first frequency spectrum associated with a frequency response to a signal of varying frequency, where the signal of varying frequency can be applied to a first object of the inductively operating element and the frequency response is obtainable from a second object of the inductively operating element, compares the obtained first frequency spectrum with a second reference frequency spectrum, detects a peak in the obtained first frequency spectrum that does not appear in the second reference frequency spectrum, analyzes the shape of the detected peak, and determines the change in insulating ability based on the analyzed shape. | 2011-02-03 |
20110025299 | DUAL-RANGE MEASUREMENT OF ELECTRICAL CURRENT - An electrical current measurement system. A sense impedance and a composite amplifier are in electrical communication and together define a trans-impedance circuit that presents a frequency-compensated impedance lower than the sense impedance to an input electrical current to be measured. A sense amplifier in electrical communication with the sense impedance provides an output indicative of a magnitude of the input electrical current. A current bypass circuit may parallel the trans-impedance circuit and bypass the input electrical current around the trans-impedance circuit when the current reaches a predefined magnitude. The system may be combined with another current sensor to form a dual-range current measurement instrument. | 2011-02-03 |
20110025300 | ELECTRICAL POWER QUALITY TEST CIRCUITRY AND METHOD - Electrical power quality test circuitry for testing response of an electrical device to input power disturbances is provided. The test circuitry includes a power structure having a rectifier configured to convert incoming AC voltage to DC voltage on a DC bus, and a power inverter configured to convert DC voltage from the bus to three-phase output AC voltage applied to the electrical device. The test circuitry also includes a control circuit configured to apply control signals to at least the power inverter to emulate at least one of a change in the amplitude of at least one phase of the output AC voltage at least one phase angle of at least one phase of the output AC voltage, and a frequency change for all phases of the output AC voltage. | 2011-02-03 |
20110025301 | Detection of a load state of a half-bridge - Disclosed is a method for diagnosing a half-bridge having a first and a second switching element. The method includes providing a half-bridge that has a first and a second switching element connected in series with each other. The first and the second switching element are driven on and off cyclically, with the switching elements during one drive cycle being alternatingly driven on and off such that they are alternatingly subject to a load current flowing therethrough. A current measuring signal is provided, representing a current flow through one of the switching elements. A first reference signal is provided. A first diagnostic signal is generated that is dependent on an integral of the measuring signal over a first integration period, and on an integral of a first reference signal over a second integration period. | 2011-02-03 |
20110025302 | System and Method for Performing Power Spectral Density and Power Level Measurements - A system and method for performing power spectral density (PSD) and power level measurements for measuring PSD required by 10GBaseT applications, using a single test and measurement instrument, such as a real time oscilloscope is described. That is, an oscilloscope includes processing circuitry which receives an input signal and converts it to raw data, it then transforms the raw data into specific analyzed displayable data by algorithmically deriving PSD from spectral data and plotting the PSD data along with limit values on a display screen of the oscilloscope. | 2011-02-03 |
20110025303 | Phasor Estimation During Current Transformer Saturation - A method, device and computer program product for determining at least one property of a current (I | 2011-02-03 |
20110025304 | CURRENT SENSING DEVICES AND METHODS - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments comprise a number of bobbin elements that are wound and subsequently formed into complex geometric shapes such as torus-like shapes. In an alternative embodiment, bonded windings are utilized which allow the segments to be formed without a bobbin or former. In yet another alternative embodiment, the aforementioned current sensing devices are stacked in groups of two or more. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 2011-02-03 |
20110025305 | CURRENT SENSING DEVICES AND METHODS - A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments comprise a number of bobbin elements that are wound and subsequently formed into complex geometric shapes such as torus-like shapes. In an alternative embodiment, bonded windings are utilized which allow the segments to be formed without a bobbin or former. In yet another alternative embodiment, the aforementioned current sensing devices are stacked in groups of two or more. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed. | 2011-02-03 |
20110025306 | Method and Apparatus for the Purification and Analytical Evaluation of Highly Purified Liquids - A method and apparatus for removing soluble and insoluble contaminants from highly purified and ultra-pure liquids having a bulk resistivity in excess of one megohm-centimeter by establishing laminar flow of the liquid in a cylindrical chamber through an electromagnetic field transverse to the direction of flow, to induce mobility of the constituents. The wall of the chamber forms a cathode and a central rod forms an anode in the chamber. The mobilized constituents are transported either to the anode or the cathode, where the material will adhere and agglomerate with other constituents. Systems are provided utilizing the method and apparatus for purifying and analytically evaluating highly purified and ultra-pure water. | 2011-02-03 |
20110025307 | DIRECTIONAL SPEED SENSING SYSTEMS AND METHODS - A directional speed sensor comprises first and second Hall-effect modules. The first Hall-effect module outputs a first current pulse for a first predetermined period when a tooth of a toothed wheel that rotates with a shaft of the vehicle passes the first Hall-effect module in a first rotation direction and outputs the first current pulse for a second predetermined period when the tooth passes the first Hall-effect module in a second rotational direction. The second Hall-effect module is electrically connected in parallel with the first Hall-effect module, is angularly offset from the first Hall-effect module with respect to a center of the shaft, outputs a second current pulse for the first predetermined period when the tooth of the toothed wheel passes the second-Hall-effect module in the first direction, and outputs the second pulse for the second predetermined period when the tooth passes the second Hall-effect module in the second direction. | 2011-02-03 |
20110025308 | RANGE DETECTION DEVICE - In a range detection device, a movable member has a magnetized portion and can move with a manual valve of a control device. A supporting member includes a plate portion having a surface opposed to the magnetized portion and a recess formed in an opposite surface of the plate portion, and supports the movable member such that the movable member is capable of moving parallel with the plate portion. A substrate is placed in the recess and has a first hole that penetrates the substrate. A magnetic detection element is installed to a surface of the substrate at a side of the plate portion to correspond to a position of the first hole, and detects magnetism of the magnetized portion. A sealing member is filled in the recess and covers the substrate and the magnetic detection element. | 2011-02-03 |
20110025309 | ANGLE-OF-ROTATION SENSOR APPARATUS - The angle-of-rotation sensor apparatus of the invention comprises a shaft supported rotatably about an axial center, a permanent magnet fixed to one end face of the shaft, and a magnetic field sensor device located in opposition to the permanent magnet at a constant spacing. The permanent magnet used is in a cuboidal shape and magnetized in the minor axis (X) direction at the rectangular surface opposing to the magnetic field sensor device. The minor axis side is defined as the X direction and the major axis side as the Y direction. Given the opposing surface of the same area, the area where the angle distribution of the magnetic field emitted out of the permanent magnet can be placed in a uniform direction is made so wide that the tolerance range for axial alignment errors between the magnetic field sensor device and the permanent magnet can be enlarged. | 2011-02-03 |
20110025310 | POSITION FEEDBACK FOR SELF BEARING MOTOR - A sensing mechanism includes a magnetic source, a magnetic flux sensor, a sensor backing on which the magnetic source and flux sensor are mounted, and a ferromagnetic target, where the magnetic source, magnetic flux sensor, and ferromagnetic target are positioned to form a magnetic circuit from the magnetic source to the target, from the target to the sensor, and returning to the magnetic source through the sensor backing. | 2011-02-03 |
20110025311 | MAGNETIC ROTARY SYSTEM FOR INPUT DEVICES - Embodiments of the present invention include a roller for an input device, where the roller's absolute angular position is measured by a magnetic encoder. A magnet is attached to the roller, possibly inside the roller so as to make the embodiment more compact. In one embodiment, the magnetization is simple and low cost. Further, tight tolerances are not required, and such a system is easy to manufacture. In one embodiment, the sensor is covered by any non-ferromagnetic material, to protect it from foreign particles, and to reduce ESD. In one embodiment, the wheel consumes much less power than conventional wheels in input devices. In one embodiment, the tilting of the wheel is measured using the same sensor that is used for measuring the rotation of the wheel. In one embodiment, a ratcheting feel provided to the user when rotating the wheel is synchronized with the rotation signal. | 2011-02-03 |