04th week of 2015 patent applcation highlights part 19 |
Patent application number | Title | Published |
20150022084 | VEHICULAR HEADLAMP - A vehicular headlamp has a light source portion that provides a low beam lighting mode, a high beam lighting mode, and a dimming lighting mode, a light source power supply portion that supplies to the light source portion a lighting current having a current value according to lighting mode, a light distribution mechanism portion that switches light distribution of illumination light by the light source portion according to the lighting mode, and a control portion that, at least in the dimming lighting mode, causes the light source power supply portion to supply lighting current having a second current value lower than a first current value for the low beam lighting mode. | 2015-01-22 |
20150022085 | Controllable high luminance illumination with moving light-sources - The present invention relates to an illumination device ( | 2015-01-22 |
20150022086 | PLASMA PROCESSING APPARATUS, ABNORMAL OSCILLATION DETERMINATION METHOD AND HIGH-FREQUENCY GENERATOR - Disclosed is a plasma processing apparatus including: a processing container; a plasma generating mechanism including a high-frequency oscillator, and configured to generate plasma within the processing container by using a high frequency wave oscillated by the high-frequency oscillator; an impedance regulator configured to adjust impedance to be applied to the high-frequency oscillator; and a determining unit configured to change the impedance to be adjusted by the impedance regulator and to determine an abnormal oscillation of the high-frequency oscillator based on a component of a center frequency of a fundamental wave that is the high frequency wave oscillated by the high-frequency oscillator, and a component of a peripheral frequency present at both ends of a predetermined frequency band centered around the center frequency of the fundamental wave in a state where the impedance is changed. | 2015-01-22 |
20150022087 | METHOD AND APPARATUS FOR PROVIDING SUPPLEMENTAL POWER IN A LED DRIVER - A DC current driver includes a DC current drive circuit configured to provide a DC supply current and receive a DC return current. A switch is coupled in series with the DC return current, and a supplemental power supply is coupled in parallel with the switch and configured to provide a supplemental voltage. Opening the switch diverts the DC return current through the supplemental supply and closing the switch causes the DC return current to bypass the supplemental supply. | 2015-01-22 |
20150022088 | LED Array Member and Thermally Decoupled Integrated Control Module Assembly - A LAM/ICM assembly comprises an integrated control module (ICM) and an LED array member (LAM). In a first aspect, active circuitry is embedded in the ICM. The circuitry monitors LED operation, controls and supplies power to the LEDs, and communicates information into and out of the assembly. A thermal insulator is disposed between the ICM and a heat sink outside the lateral boundary of the LAM. In a second aspect, a lighting system comprises an AC-to-DC converter and a LAM/ICM assembly. The AC-to-DC converter outputs a substantially constant current or voltage. The magnitude of the current or voltage is adjusted by a signal output from the LAM/ICM. In a third aspect, the ICM includes a built-in switching DC-to-DC converter. An AC-to-DC power supply supplies a roughly regulated supply voltage. The switching converter within the LAM/ICM receives the roughly regulated voltage and supplies a regulated LED drive current to its LEDs. | 2015-01-22 |
20150022089 | LIGHT-EMITTING ELEMENT DRIVING DEVICE - Short circuit failures and open circuit failures of light-emitting elements used for the backlight in an LCD panel can be reliably and easily detected. The voltage at the node between each series-connected light-emitting element array and a drive circuit is detected as a monitored voltage. A maximum detector detects the highest and a minimum detector detects the lowest of these monitored voltages. Short circuit or open circuit failure of a light-emitting element is detected by comparing the voltage difference between the maximum detector output and the minimum detector output with a specific reference voltage. | 2015-01-22 |
20150022090 | FOLDABLE DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - A foldable display apparatus, a method of manufacturing the same, and a controlling method of the same are disclosed. The foldable display apparatus includes a substrate including a metal thin film and an insulating layer provided on the metal thin film, an organic light-emitting unit formed on the substrate and emitting light in an direction away from the substrate, and a thin film encapsulating layer for encapsulating the organic light-emitting unit. The foldable display apparatus may be folded in a direction such that the metal thin film is exposed. | 2015-01-22 |
20150022091 | SYSTEMS AND APPARATUS FOR CONTROLLING LIGHTING BASED ON COMBINATION OF INPUTS - Disclosed are lighting fixtures and lighting systems for controlling lighting based on a combination of inputs. The lighting fixtures may comprise a light source, inputs electrically connectable to sensors for sensing daylight, occupancy and environmental conditions, inputs electrically connectable to a group lighting controller output, a memory, and a lighting controller for controlling the dimming state of light sources based on received inputs. The lighting systems may comprise lighting fixtures with dimmable light sources and controllers in electrical communication with the light sources. The controllers may determine dimming states of the light sources based on group inputs and local inputs indicative of light levels, occupancy statuses, and environmental conditions near the lighting fixtures. | 2015-01-22 |
20150022092 | Optical Sensor - Three light emitting elements and one light receiving element are provided on a surface of a substrate. The light receiving element is disposed within a first triangular region connecting the three light emitting elements. A first rectangle circumscribed around the triangular region is formed. In addition, a second rectangle circumscribed around a second triangle formed when intersections of a virtually set XY plane and optical axes of light beams emitted from the three light emitting elements are perpendicularly projected on the surface of the substrate, is formed. Directions of the light emitted from the three light emitting elements are set such that at least either one of length and breadth dimensions of the second rectangle is larger than a corresponding one of length and breadth dimensions of the first rectangle. | 2015-01-22 |
20150022093 | LED LIGHT CONTROLLER AND METHOD OF CONTROLLING LED LIGHTS - A method controls the light exposure of an individual during a given time period. A control unit is provided for controlling lights. A first sensor is worn by the individual and gathers light exposure data including lighting intensity data and Kelvin temperature data experienced by the individual. Second sensors are disposed in a building for collecting emitted light data emitted in the building. The emitted light data and the light exposure data are transmitted to the control unit. The light data, along with desired data including desired light intensity and desired Kelvin temperature are stored. The optimal light exposure for the individual is determined based on the light data or the desired data, and an output signal is generated based on the optimal light exposure. The lights are controlled based on the output signal to produce an overall light intensity and Kelvin temperature pattern per day for the individual. | 2015-01-22 |
20150022094 | LIGHTING SYSTEM AND METHOD TO CONTROL A LIGHTING SYSTEM - An LED lighting system is disclosed, which generally consists of an enclosure, one or more LED modules, one or more transformers, and one or more drivers. A lamp assembly is disclosed, which generally consists of one or more vertically oriented LED chips, thermally conductive shells, and a thermally dissipating means positioned at the back of the LED chips. An LED module is disclosed, which generally consists of a lamp assembly, one or more reflectors and modules caps. A method of controlling light intensities is disclosed, which generally consists of method of decreasing light intensities in areas with little occupancy while minimizing user annoyance resulting from drastic light intensity fluctuations. A universal mounting bracket is disclosed, which generally consists of a fixture plate, mounting plate, and an adjustable means. | 2015-01-22 |
20150022095 | Systems and Methods for Automatically Driving Art Installations Using Partially Complete Real-Time Data - Systems and methods for automatically driving art installations using partially complete real-time data are disclosed. An activation server acquires real-time environment data. The real-time environment data is used by the activation server to generate an estimate of the state of the environment using an environment input model. The estimate of the state is used by the activation server to generate an activation pattern for the visual performance system. The activation server provides the generated activation to the visual performance system for use in providing a visual performance. | 2015-01-22 |
20150022096 | METHODS AND APPARATUS FOR CONTROLLING LIGHTING BASED ON COMBINATION OF INPUTS - Disclosed are methods and apparatus for lighting control based on a combination of inputs. Local inputs indicative of light levels, occupancy statuses, and environmental conditions near lighting fixtures are received, and group inputs to control the dimming state of lighting fixtures are also received. The group inputs may utilize manipulation of mains power powering lighting fixtures to indicate a dimming level. The dimming states of light sources of lighting fixtures are based on group inputs and local inputs. | 2015-01-22 |
20150022097 | WAVELENGTH SENSING LIGHTING SYSTEM AND ASSOCIATED METHODS - A lighting system includes a light source included in an array of light sources to emit illuminating light, a sensor Included in the array to sense environmental light from an environment, and a controller operatively connected to the sensor and the light source to analyze the environmental light sensed by the sensor to at least one of detect and generate data relating to a condition of the environment. The data is transmittable in a data light defined by a data wavelength defined relative to the illuminating light. The controller receives the data included in the data light using the sensor and analyzes the data included in the data light and to control the transmission of the data light from the light source. The plurality of light sources emit the illuminating light in a plurality of directions. The sensor receives the environmental light from a plurality of directions. | 2015-01-22 |
20150022098 | Illumination Devices and Related Systems and Methods - Illumination devices and related systems and methods are disclosed that can be used for LCD (Liquid Crystal Display) backlights, LED lamps, or other applications. The illumination devices can include a photo detector, such as a photodiode or an LED or other light detecting device, and one or more LEDs of different colors. A related method can be implemented using these illumination devices to maintain precise color produced by the blended emissions from such LEDs. One application for the illumination devices is backlighting for FSC (Field Sequential Color) LCDs (Liquid Crystal Displays). FSC LCDs temporally mix the colors in an image by sequentially loading the red, green, and blue pixel data of an image in the panel and flashing the different colors of an RGB backlight. Precise and uniform color temperature across such a display can be advantageously maintained by continually monitoring ratios of photodiode currents induced by the different colored LEDs in each illumination device as each color is flashed. | 2015-01-22 |
20150022099 | TOUCH ACTIVATED LOW ENERGY APPARATUS FOR ILLUMINATING PERSONAL PORTABLE CARRYING UNITS - Embodiments of the present invention are directed to a touch or close proximity activated low energy illumination apparatus. The illumination apparatus are configured to be positioned within personal portable carrying units such as purses, handbags, backpack, shoulder bags, computer bags, bags for communication devices or other container. The illumination apparatus is configured to illuminate inner compartments of such personal portable carrying units. In preferred embodiments, the apparatus is removably attachable to a personal portable carrying unit and can be oriented for the illumination of external objects such as a door lock of a car or building, or the immediate vicinity of a dark space. Certain embodiments may be affixed to or integrated into a personal portable carrying unit. Embodiments of the present invention may comprise a circuit assembly, a power source, at least one semiconductor illuminating device such as a light emitting diode and a plain or decorative pocket. Preferred embodiments provide a pre-programmed timed illumination occurring once the apparatus is touched at the designated touch area; on retouch thereon during the timed period, the illumination immediately switches off giving further battery energy conservation. | 2015-01-22 |
20150022100 | LED driving device and control method - The invention is provided with an LED driving device and the control method. The driving device includes power converter, microprocessor and LED circuit. Wherein the power converter includes impulse transformer and switch control circuit. Primary winding at input side of the impulse transformer connects with rectifier filter circuit by the switch control circuit. Secondary winding at output side and auxiliary winding connect with power end of the microprocessor by constant voltage control switch. Output end of the microprocessor connects with LED circuit. The LED driving device and the control method provided by this invention collects on/off signal of mechanical lamp by using switch control circuit. Light is adjusted by LED circuit driven by the microprocessor, and thus heat elimination effect is improved, power consumption is lowered and brightness is enhanced. | 2015-01-22 |
20150022101 | LED Array Member and Integrated Control Module Assembly with Built-In Switching Converter - A LAM/ICM assembly comprises an integrated control module (ICM) and an LED array member (LAM). The ICM includes interconnect through which power from outside the assembly is received. In a first novel aspect, active circuitry is embedded in the ICM. In one example, the circuitry monitors LED operation, controls and supplies power to the LEDs, and communicates information into and out of the assembly. In a second novel aspect, a lighting system comprises an AC-to-DC converter and a LAM/ICM assembly. The AC-to-DC converter outputs a substantially constant current or voltage. The magnitude of the current or voltage is adjusted by a signal output from the LAM/ICM. In a third novel aspect, the ICM includes a built-in switching DC-to-DC converter. An AC-to-DC power supply supplies a roughly regulated supply voltage. The switching converter within the LAM/ICM receives the roughly regulated voltage and supplies a regulated LED drive current to its LEDs. | 2015-01-22 |
20150022102 | Omni Voltage Direct Current Power Supply - A battery operated LED lighting apparatus including: a battery outputting a battery voltage; a light emitting diode or array of light emitting diodes; and a power supply including a boost regulating circuit. The power supply being in communication with the battery and the light emitting diodes such that a constant voltage or constant current is supplied to the light emitting diodes as the battery discharges and the battery voltage falls below the output voltage. In a preferred embodiment the power supply further includes a buck regulator to maintain the proper output voltage when the battery voltage is greater than the output voltage. | 2015-01-22 |
20150022103 | LIGHT EMITTING DIODE DRIVING APPARATUS AND LIGHT EMITTING DIODE DRIVING METHOD - A light emitting diode (LED) driving apparatus and an LED driving method suitable for driving an LED load are provided. The LED driving apparatus includes a driving circuit, a feedback circuit, and a control chip. The driving circuit provides a driving voltage to one terminal of the LED load according to a pulse-width modulation (PWM) driving signal. The feedback circuit generates a feedback voltage according to a voltage on the other terminal of the LED load. The control chip is configured to generate the PWM driving signal and adjust the duty cycle of the PWM driving signal in response to the feedback voltage. If the control chip determines the PWM driving signal with a threshold duty cycle continues being output over a preset period of time, the control chip determines that the current leakage phenomenon occurs on the LED load and stops generating the PWM driving signal. | 2015-01-22 |
20150022104 | LED LIGHTING APPARATUS HAVING IMPROVED FLICKER PERFORMANCE - Provided is a lighting apparatus using LEDs (light-emitting diodes having improved flicker performance. In general, in a direct-drive LED lighting apparatuses of the related art which use no switching-mode power supply (SMPS), percent flicker (hereinafter referred to as “% F”) is 100%. In contrast, the % F of the LED lighting apparatus having improved flicker performance according to the present invention is 40% or less that is equivalent to the % F of fluorescent lamps using a magnetic ballast. | 2015-01-22 |
20150022105 | Method and Apparatus for Extending the Power Output Range of a Power Converter Used for a Lighting System - A method and system for extending the power output range of a power converter used for a lighting system is disclosed. | 2015-01-22 |
20150022106 | LIGHT-EMITTING DIODE DRIVING APPARATUS AND LIGHT-EMITTING DIODE ILLUMINATION SYSTEM USING THE SAME - A LED driving apparatus and a LED illumination system using the same are provided. The LED driving apparatus adapted to drive a LED load having at least one power specification includes a driving circuit, an output detecting circuit and an output adjusting circuit. The driving circuit provides an adjustable output current for driving the LED load. The output detecting circuit is coupled to the driving circuit and the LED load for detecting a driving voltage of the LED load to generate a first detecting signal. The driving circuit drives the LED load under a constant current in response to the first detecting signal. The output adjusting circuit is coupled to the output detecting circuit. The output adjusting circuit is controlled to adjust a signal level of the first detecting signal, such that the adjustable output current has at least one current adjusting range. | 2015-01-22 |
20150022107 | Driver device and driving method for driving a load, in particular a LED unit - The present invention relates to a driver device ( | 2015-01-22 |
20150022108 | LED LIGHT SOURCE - The invention relates to a dimmable LED light source comprising:—a rectifier having rectifier input terminals for connection to respective output terminals of a phase cut dimmer of the trailing edge type, input terminals of the phase cut dimmer being connected to the mains supply, and having rectifier output terminals,—a first bleeder circuit connecting the rectifier output terminals,—a series arrangement comprising a unidirectional element and a capacitive means connecting the rectifier output terminals,—a converter circuit, having input terminals coupled to respective sides of the capacitive means and output terminals coupled to a LED load, for generating a current through the LED load, in dependence on a dim signal, out of a voltage present across the capacitive means,—a dim circuit for generating a dim signal as a function of the adjusted phase angle of the phase cut dimmer and for supplying the dim signal to a dim input of the converter circuit, the dim circuit comprising:—gradient detection circuitry for determining the gradient of the voltage across the capacitive means and for determining as the adjusted phase angle the first value of the phase angle for which the gradient is negative, when the phase angle is less than 90 degrees,—signal generating circuitry for generating a sinusoidal signal that represents the mains supply voltage,—circuitry for activating the first bleeder when the phase angle is 90 degrees and for switching off the first bleeder when the adjusted phase angle has been determined, in case the adjusted phase angle is higher than 90 degrees,—deviation detection circuitry for detecting the deviation of the voltage across the rectifier output terminals from the sinusoidal signal, for comparing the deviation voltage with a reference voltage and for determining as the adjusted phase angle the value of the phase angle for which the deviation voltage is higher than or equal to the reference voltage, when the phase angle is between 90 and 180 degrees. | 2015-01-22 |
20150022109 | DRIVING CIRCUIT WITH DIMMING CONTROLLER FOR DRIVING LIGHT SOURCES - A driving circuit includes a power converter, a dimming controller and a current path coupled to the dimming controller. The power converter receives input power from a rectifier and provides output power to a light source. A power switch transfers power from an AC power source to the rectifier when the power switch is on. The dimming controller receives a switch monitoring signal indicative of the state of the power switch. An average current flowing through the light source has a first value if the power switch is on. The dimming controller is operable for adjusting the average current based on the switch monitoring signal. A current flows from the AC power source through the current path to ground when the power switch is off. | 2015-01-22 |
20150022110 | CONTROLLED OPERATION OF A LED LIGHTING SYSTEM AT A TARGET OUTPUT COLOR - A method for operating a LED lighting system has three or more LED emitters of different colors. The method allows finding the optimal drive setting for each LED emitter of the system, taking into account a specific target color. The method involves providing calibration data for each LED emitter at a plurality of values of drive setting and junction temperature, and executing a drive recursion loop calculating the drive setting of each emitter based on an input value for the temperature of each emitter and in view of the target output color and of the calibration data. Advantageously, this can be accomplished without measuring the color emitted by the LED lighting system, that is, no color feedback is required. A LED lighting system implementing the method is also disclosed. | 2015-01-22 |
20150022111 | LED DEVICE WITH BUILT-IN FAST SELF-TEST CIRCUIT - An LED device with built-in fast self-test circuit includes at least one LED unit, a data shift and latch register, a control unit, at least one multiplexer, and an LED driver unit. The data shift and latch register receives a serial data signal. The control unit receives the serial data signal to detect whether there is normal data transmission based on the serial data signal. When there is no data transmission, the control unit enables a multiplex control signal. The multiplexer is connected to the control unit and the data shift and latch register. According to the multiplex control signal, the multiplexer selects the control unit or the data shift and latch register as an output. The LED driver unit is connected to at least one LED unit and the multiplexer to drive the LED unit based on the output of the multiplexer. | 2015-01-22 |
20150022112 | METHOD FOR OPERATING A CIRCUIT CONFIGURATION WITH A CONTROL AND/OR REGULATING MEANS FOR A LIGHT DIODE FIELD - A method for operating a circuit configuration which includes a power source, a light diode field switched serially with the power source in which the light diode field comprises at least two serial circuits including at least one light diode and a switch, a control and/or regulating means for the light diode field, and a voltage sensor. The control and/or regulation means controlling the controllable switches and the power source such that the control and/or regulation means addresses the controllable switch of at least one serial circuit of the light diode field during a clock cycle for a pulse duration determined by the control and/or regulation means using a control pulse at the control input of the controllable switch for closing. The control and/or regulation means addresses the power source shortly before or at the latest simultaneous with the end of a pulse duration such that the current is reduced, namely by the amount of current through the serial circuit. The controllable switch at the end of the pulse duration is addressed by the control and/or regulation means for opening. During subsequent clock cycles the control and/or regulation means switch on only one of the controllable switches of the serial circuits for a period identified as diagnostics period. | 2015-01-22 |
20150022113 | POWER FACTOR CONTROLLER BASED SINGLE-STAGE FLYBACK DRIVER AND LIGHT-EMITTING SYSTEM - Various embodiments relate to a power factor controller based single-stage flyback driver and a light-emitting system. The driver includes a primary-side circuit, a secondary-side circuit, a power factor controller, a current feedback circuit, a voltage feedback circuit, and a feedback signal generation circuit, wherein, in the secondary-side circuit, the output voltage is divided using a first voltage division resistor and a second voltage division resistor so as to provide the sampling of the output voltage to the voltage feedback circuit, and the first voltage division resistor or the second voltage division resistor is connected in parallel with a compensation branch having a capacitive reactance. | 2015-01-22 |
20150022114 | TUBULAR LIGHT-EMITTING APPARATUS - Provided is a light-emitting apparatus and a method of operating the same. The light-emitting apparatus includes: a light-emitting module having a plurality of light-emitting diodes (LEDs); a cylindrical cover housing the light-emitting module, and transmitting light emitted from the plurality of LEDs; with a first socket at a first end of the cylindrical cover; a second socket at a second end of the cylindrical cover; and a dimmer controller mounted at the first socket so as to adjust an intensity of the light emitted from the plurality of LEDs. The light-emitting apparatus may adjust an intensity of light without a system change or equipment work. | 2015-01-22 |
20150022115 | LIGHTING MODULE AND A CORRESPONDING LIGHTING SYSTEM - Various embodiments relate to a lighting module. The lighting module includes at least one light source, regulating means for regulating the brightness of the light emitted by the at least one light source, and a control unit configured for receiving a brightness control signal, and driving the regulation means as a function of the brightness control signal, wherein the control unit is configured for: verifying whether the brightness control signal contains a digital communication signal, and if the brightness control signal includes a digital communication signal, detecting the data transmitted via the digital communication signal and driving the regulating means as a function of the transmitted data, or if the brightness control signal does not includes a digital communication signal, driving the regulating means as a function of the brightness control signal. | 2015-01-22 |
20150022116 | LED-BASED LIGHT BULB DEVICE - An LED light bulb device including a bulb body, a flex circuit leg, an LED, conversion circuitry and a cap. | 2015-01-22 |
20150022117 | CURRENT BALANCING CIRCUITS FOR LIGHT-EMITTING-DIODE-BASED ILLUMINATION SYSTEMS - A system including a plurality of switches and a comparator. The plurality of switches is configured to respectively supply a plurality of currents via respective terminals to a plurality of sets of light emitting diodes. The sets of light emitting diodes are configured to respectively output light having wavelengths in a plurality of wavelength ranges in a spectrum of blue light. The comparator is configured to compare a reference voltage to a voltage at one of the terminals of one of the plurality of switches connected to one of the sets of light emitting diodes, and to adjust, based on the comparison, biasing of the plurality of switches to maintain a predetermined ratio of the plurality of currents. | 2015-01-22 |
20150022118 | PROGRAMMABLE LIGHT EMITTING DIODE (LED) DRIVER TECHNIQUE BASED UPON AN INPUT VOLTAGE SIGNAL - Provided is an LED driver including an amplifier configured to receive a negative voltage input signal and produce a positive voltage output signal in response thereto. Also included is a microcontroller configured for sensing a value of the positive voltage output signal. The microcontroller (i) enters a programming mode when the value exceeds a threshold and (ii) produces an output current responsive to the value. | 2015-01-22 |
20150022119 | PROGRAMMABLE LIGHT EMITTING DIODE (LED) DRIVER TECHNIQUE BASED UPON A PREFIX SIGNAL - Provided is a light emitting diode (LED) driver. The LED driver includes a microcontroller for setting a level of an output current of the driver. The driver is configured to receive a prefix as an input, the prefix instructing the microcontroller to enter a programming mode. The microcontroller is responsive to a level signal representative of the level of the output current during the programming mode. | 2015-01-22 |
20150022120 | LIGHT EMITTING DIODE APPARATUS WITH OVER CURRENT PROTECTION FUNCTION AND SYSTEM HAVING THE SAME - A switchable constant current constant voltage supply unit outputs a constant current to drive a plurality of light emitting diode apparatuses when voltages of the light emitting diode apparatuses are not greater than a threshold voltage detected by a voltage detection unit. The switchable constant current constant voltage supply unit outputs a constant voltage to drive the light emitting diode apparatuses when the voltages of the light emitting diode apparatuses detected by the voltage detection unit are greater than the threshold voltage. Moreover, the light emitting diode apparatus includes a positive temperature coefficient thermistor or a polymeric positive temperature coefficient thermistor. | 2015-01-22 |
20150022121 | LIGHT-EMITTING CONTROL CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A light-emitting control circuit includes a light-emitting unit, a switch module, a driving unit, a first energy storage unit, and a second energy storage unit. The driving unit outputs a first signal to turn on the switch module, and outputs a second signal to turn off the switch module. The power supply provides power to charge the first energy storage unit when the switch module is turned on, an electric conductivity of the switch module accordingly gradually increases, and the voltage across the light-emitting unit accordingly gradually increases, causing the light emitted by the light-emitting unit to gradually become brighter. The second energy storage unit discharges to provide voltage to the light-emitting unit when the switch module is turned off, the light emitted by the light-emitting unit gradually becomes darker. | 2015-01-22 |
20150022122 | BACKLIGHT UNIT INCLUDING A POWER TRANSMITTING WIRE - The present invention relates to a backlight unit. The backlight unit includes a light source unit, a power supply unit, and a power transmitting wire. The light source includes at least one light source. The power supply circuit is configured to supply a power voltage to the light source unit. The power transmitting wire is configured to transmit the power voltage. The power transmitting wire includes at least two circuit patterns. | 2015-01-22 |
20150022123 | Remote control of light source - A lighting system comprises a set of light sources and a remote control unit. The remote control unit comprises a user interface through which a user may identify an area in an image and a light source. The identified image area is linked with the light source and color information of the identified image area is transmitted to the light source. The light source is thereby enabled to adapt its light output to the color information. A user is thereby enabled to pick the color to be outputted by a light source by selecting an area in an image displayed on the remote control unit. The remote control unit may be part of a mobile telephone, a tablet computer, an electronic photo frame, or a television screen. | 2015-01-22 |
20150022124 | Self Sustainable Automobile - A self-sustainable automobile is disclosed in the present invention. Said self-sustainable automobile uses chargeable batteries as its power source. The motor and chargeable batteries is matched in such a way that the time for fully charging the batteries is faster than the time for fully discharging the batteries. Thus engine requires no external source of energy to be or remain in motion. | 2015-01-22 |
20150022125 | ELECTRIC TOOL - An electric tool for driving a tip tool, the electric tool includes: a removable battery; the brushless motor configured to generate a driving force for driving the tip tool; an inverter circuit configured to supply drive power from the removable battery to the brushless motor using a plurality of semiconductor switching elements; a controller configured to control the inverter circuit to control rotation of the brushless motor; a temperature detector configured to detect a temperature of the brushless motor or the semiconductor switching elements; and a voltage detector configured to detect a voltage of the battery. The brushless motor is driven such that a duty ratio of PWM drive signal for driving the semiconductor switching elements is determined based on relationship between the temperature detected by the temperature detector and the voltage detected by the voltage detector. | 2015-01-22 |
20150022126 | METHOD AND APPARATUS FOR MONITORING A PERMANENT MAGNET ELECTRIC MACHINE - A controller-implemented method for monitoring a permanent magnet electric machine includes determining a threshold direct-axis (d-axis) current corresponding to inception of irreversible demagnetization of the permanent magnet based upon material properties of a permanent magnet mounted in a rotor of the PM electric machine and a temperature of the permanent magnet. A d-axis current associated with controlling the PM electric machine is determined, and a state of health of the PM electric machine is determined based upon the threshold d-axis current and the monitored d-axis current. | 2015-01-22 |
20150022127 | CURRENT CONTROL DEVICE OF SYNCHRONOUS MOTOR - A current control device of a synchronous motor comprises a provisional d-phase current command calculation unit; a voltage amplitude calculation unit calculating a magnitude of a voltage command vector in a previous sampling period; a voltage ratio calculation unit determining a voltage ratio between the magnitude of the voltage command vector and a maximum output voltage of an amplifier; a target d-phase current calculation unit obtaining a d-phase current command in the previous sampling period, and calculating a target d-phase current command from the voltage ratio and the d-phase current command; a correction value calculation unit determining a correction value by passing a difference between the provisional d-phase current command and the target d-phase current command through a low-pass filter; and an adder adding the correction value to the d-phase current command in the present sampling period to calculate a new d-phase current command. | 2015-01-22 |
20150022128 | METHOD AND RELATED DRIVER OF A PERMANENT MAGNET SYNCHRONOUS ELECTRIC MOTOR - A method of driving a permanent magnet synchronous electric motor includes sensing or estimating a back electromotive force induced in at least a winding of the motor by the rotation of a rotor of the motor; and reading, from a memory, values of a first voltage waveform having a phase angle with respect to the back electromotive force. The method also includes generating a driving voltage corresponding to the sum of values of a control voltage, obtained as product of the values of the first voltage waveform by a first coefficient determined as a function of a desired value of motor torque, and values of a cancelation voltage of the back electromotive force. The method also includes applying the driving voltage at the motor winding. | 2015-01-22 |
20150022129 | HYBRID CONTROLLER FOR BRUSHLESS DC MOTOR - A circuit includes a processor that analyzes a pulse width modulated (PWM) signal feedback from a brushless DC motor to determine a transition between a mutual inductance zero crossing condition and a Back Electro Motive Force (BEMF) zero crossing condition of the brushless DC motor. A mutual inductance controller is executed by the processor to commutate the brushless DC motor at startup of the motor when the mutual inductance zero crossing condition is detected by the processor. A BEMF controller is executed by the processor to commutate the brushless DC motor after startup of the motor when the BEMF zero crossing condition is detected by the processor. | 2015-01-22 |
20150022130 | MOTOR CONTROL APPARATUS, MOTOR-DRIVEN APPARATUS, METHOD OF CONTROLLING MOTOR AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING A COMPUTER PROGRAM - The motor control apparatus controlling rotation of a brushless motor includes a controller to control an angular velocity of the motor, and a load torque calculator to calculate a load torque at which the motor drives a driven member, by using a detection signal output from a rotation detector to output the detection signal in response to the rotation of the motor. When the motor drives the driven member toward a target stop position, the controller calculates a deceleration rotation amount, which is a remaining rotation amount of the motor at start of deceleration of the motor from its drive state that is one of an acceleration state and a constant velocity state, and controls the angular velocity of the motor on a basis of the deceleration rotation amount. The controller calculates the deceleration rotation amount by using the load torque calculated in the drive state. | 2015-01-22 |
20150022131 | ELECTRIC CIRCUIT AND METHOD FOR ESTIMATING THE ANGULAR POSITION OF A ROTOR OF AN ELECTRIC MOTOR, AND DEVICE FOR CONTROLLING AN ELECTRIC MOTOR - Electric circuit for estimating the angular position of a rotor of an electric motor, including: a sensing module configured to receive at least one electric signal representative of a drive current of the electric motor and to generate a measurement signal indicative of a switching of the at least one electric signal and a switching index indicative of the type of switching, rising or falling, of the at least one electric signal; and a computing module configured to supply, from the measurement signal and switching index a position signal representative of an angular position of the electric motor rotor. | 2015-01-22 |
20150022132 | METHOD FOR OPERATING AN ELECTRICAL MACHINE - A method for operating an electrical machine having a stator | 2015-01-22 |
20150022133 | Circuit for Thermal Protection and Power Regulation of Electric Motors - A circuit for thermal protection and power regulation as a function of the current winding temperature of phase windings of an electric motor. The circuit including at least one temperature monitor switch (TW | 2015-01-22 |
20150022134 | MACHINE TOOL AND CONTROL METHOD FOR THE SAME - A machine tool includes a rotational drive unit that rotationally drives a main spindle to which a tool is attached, a moving unit that relatively moves the tool with respect to the workpiece, and a rotational speed adjustment unit that adjusts a rotational speed of the main spindle by controlling the rotational drive unit. The machine tool also includes a machining start determination unit that determines that machining of the workpiece by the tool is started with the rotational drive unit rotationally driving the main spindle. The rotational speed adjustment unit exponentially raises the rotational speed of the main spindle after reducing the rotational speed to a predetermined rotational speed set in advance, on condition that the machining start determination unit determines that the machining is started, and causes the rotational speed of the main spindle to reach a value of the rotational speed before being reduced. | 2015-01-22 |
20150022135 | MULTILEVEL INVERTER - The present disclosure discloses a multilevel inverter configured to output a 3-phase voltage to a motor by allowing a plurality of unit power cells forming one phase to be serially connected, the multilevel inverter, the multilevel inverter including a plurality of current sensors configured to detect an output current of the plurality of unit power cells. | 2015-01-22 |
20150022136 | DEVICE, METHOD AND SYSTEM FOR CONTROLLING ROTATION SPEED OF MOTOR - The present application discloses a device, method and system for controlling a rotation speed of a motor. The device includes: a reference voltage generating module generating a reference voltage; a PWM signal converting module converting a PWM signal into a voltage signal; a first comparator outputting a first level or a second level; a first switching element having a control terminal connected with an output terminal of the first comparator and a first terminal input with a first signal, and being turned on when receiving the second level and being turned off when receiving the first level; a follower having an input terminal connected with the PWM signal converting module; and a control signal outputting terminal outputting the first signal or the voltage signal. The device, method and system are capable of controlling the rotation speed of the motor to jump at a specific duty cycle. | 2015-01-22 |
20150022137 | MOTOR CONTROLLER CONTROLLING TWO MOTORS FOR DRIVING SINGLE DRIVEN OBJECT - In a motor controller according to the present invention, a speed control unit 24 | 2015-01-22 |
20150022138 | FORCE FEEDBACK MECHANISM AND RELATED ELECTRONIC DEVICE AND OPERATION METHOD - A force feedback mechanism disposed inside a casing for vibration balance of the casing is disclosed in the present invention. The force feedback mechanism includes an accelerator, a force generator and a controller. The accelerator detects an acceleration parameter of the casing. The force generator respectively generates an effective force at a first direction and a second direction. The first direction is substantially opposite to the second direction. The controller is electrically connected to the accelerator and the force generator. The controller obtains and analyzes absolute value and vector of the acceleration parameter, and drives the force generator to generate the corresponding effective force according to the absolute value and the vector. | 2015-01-22 |
20150022139 | STEPPING MOTOR CONTROL DEVICE, OPTICAL APPARATUS, STEPPING MOTOR CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM - A stepping motor control device includes a position detection sensor configured to detect a rotation position of a stepping motor, a voltage controller configured to drive the stepping motor, an advance angle controller configured to control an advance angle that is a phase difference between an excitation current applied to a coil of the stepping motor and the rotation position of the stepping motor, and a speed controller configured to control a drive speed of the stepping motor. The speed controller controls the drive speed using, in combination, voltage control by the voltage controller and advance angle control by the advance angle controller. | 2015-01-22 |
20150022140 | ELECTRICITY STORAGE SYSTEM AND CARTRIDGE - An electricity storage system comprising: a plurality of cartridges connected together in parallel, each cartridge comprising a plurality of cells connected together, and a circuit for preventing cross current, which restricts the current in each cartridge so as to cause the current to flow in one direction selected from a discharge direction and a charge direction, wherein said cartridges connected together in parallel are simultaneously charged with a direct current voltage converted from a commercial voltage, or said cartridges connected together in parallel are caused to discharge simultaneously so that said electricity storage system outputs a commercial voltage. | 2015-01-22 |
20150022141 | CHARGER AND ELECTRONIC APPARATUS SYSTEM - A charger capable of charging an electronic apparatus includes a charger main body having a power output unit which output charging power, a connection unit which is attached to the charger main body, which is configured to be connected to the electronic apparatus, and which is configured to supply the charging power from the power output unit to the electronic apparatus in a state that the connection unit is connected to the electronic apparatus, and a temperature sensor which is provided in the connection unit, and which is configured to detect a temperature in the vicinity of the connection unit. | 2015-01-22 |
20150022142 | INTEGRATION OF ELECTRONIC COMPONENTS IN INDUCTIVE POWER TRANSFER SYSTEMS - In a particular embodiment, a wireless power receiver apparatus includes a coil configured to wirelessly receive power via a magnetic field generated by a transmitter. The wireless power receiver apparatus can include a housing that includes a first volume configured to house the coil. The housing can also include a second volume configured to house electronic components. The second volume can be bound by a horizontal shielding member along a first portion of the second volume. The horizontal shielding member can define a horizontal shielding member plane substantially parallel to a plane defined by the coil. The second volume can also be bounded by a vertical shielding member along a second portion of the second volume. The vertical shielding member can define a vertical shielding member plane substantially orthogonal to the plane defined by the coil. | 2015-01-22 |
20150022143 | SMARTKEY OPERATING SYSTEM EQUIPPED WITH WIRELESS CHARGING FUNCTION AND OPERATING METHOD THEREOF - Provided are a smartkey operating system equipped with a wireless charging function and an operating method thereof, which controls performing of a wireless charging function equipped in a smartkey system, thereby preventing an overlap of frequencies even when there is an overlap section between a wireless charging operating frequency and a low frequency of the smartkey system. The smartkey operating system includes a switching unit configured to cut off or supply the wireless charging power, and a control unit configured to determine whether to cut off the wireless charging power to control the switching unit according to a current mode. When the current mode is a fob search mode, the control unit cuts off the wireless charging power by using the switching unit. | 2015-01-22 |
20150022144 | ELECTRIC VEHICLE - An electric vehicle includes a charging circuit and a control apparatus. The charging circuit includes a reception coil and a battery. The reception coil is configured to receive wirelessly AC power transmitted from an electrical transmission circuit outside of the electric vehicle. The battery is configured to be charged with power obtained by rectifying the AC power received by the reception coil. The control apparatus includes a battery voltage detector and a charging current value setting device. The charging current value setting device is configured to set a charging current value at which the battery is charged in accordance with voltage of the battery detected by the battery voltage detector. The charging current value is set so that a load resistance value of the charging circuit is constant in a period during which the battery is being charged. | 2015-01-22 |
20150022145 | METHOD AND APPARATUS FOR TRANSMITTING COMMUNICATION POWER IN WIRELESS POWER TRANSMISSION SYSTEM - A method of operating a wireless power transmission apparatus includes receiving, from a wireless power reception apparatus, information on an operating power of a micro control unit (MCU) of the wireless power reception apparatus and information on an output of a direct current-to-direct current (DC/DC) converter of the wireless power reception apparatus; determining whether a charging power is to be transmitted to the wireless power reception apparatus based on the received information on the output of DC/DC converter; and transmitting, to the wireless power reception apparatus, an MCU operating power calculated based on the received information on the operating power of the MCU in response to a determination that the charging power is not to be transmitted to the wireless power reception apparatus. | 2015-01-22 |
20150022146 | SYSTEM COMPOSED OF A HAND TOOL CASE AND A HAND TOOL BATTERY - A system having a hand tool case which includes at least one inductive charge receiving area, and at least one hand tool battery which is provided for being inductively charged. The inductive charge receiving area is provided for storing the hand tool battery at least partially in close proximity to at least one wall of the hand tool case. | 2015-01-22 |
20150022147 | DEVICE AND METHOD FOR WIRELESSLY TRANSMITTING POWER - There are provided a device and a method for wirelessly transmitting a power in which a power is wirelessly transmitted to a power receiving device with high transmission efficiency. The wireless power transmitting device includes a first power transmitting coil configured to transmit a first power signal, a second power transmitting coil that is concentrically layered with the first power transmitting coil to transmit a second power signal, and a power supply unit configured to supply alternating current powers to the first power transmitting coil and the second power transmitting coil so as to allow the first power signal and the second power signal to have a phase difference of 180°. | 2015-01-22 |
20150022148 | ELECTROCHEMICAL CELL LABELS AND ACCESSORIES - A battery includes a first terminal, a second terminal, body connecting the first and second terminals, and an outer layer or label. The label may be provided with a power indicator apparatus and a visual charge indicator having improved visibility. The label may alternatively or additionally be provided with a plurality of visual charge indicators and/or other features and functionality, including sensory features that appeal to the sense of touch and/or sight. The label may further or alternatively include a circuit or antenna configured to receive a signal from a charger and convert it into energy or charge stored within the battery. | 2015-01-22 |
20150022149 | WIRELESS POWER RECEIVER AND METHOD OF MANAGING THEREOF - A receiver to wirelessly receive power from a transmitter, and including a receiving unit to receive AC power from the transmitter; a rectifying unit to rectify the received AC power to DC power, a power management unit to manage power to be transferred to a load based on the rectified DC power and a DC-DC converter to supply a DC voltage required by the load, or to the load with the rectified DC power. The power management unit generates and transmits a control signal to adjust the power transferred to the load based on the rectified DC power. | 2015-01-22 |
20150022150 | BATTERY OVERCHARGE MONITORING SYSTEM AND METHOD - An exemplary battery charge monitoring method includes, among other things, calculating expected charge data for a battery using at least a capacity of the battery and a charge rate, and comparing actual charge data to the expected charge data to identify differences between the actual charge data and the expected charge data. | 2015-01-22 |
20150022151 | VEHICLE AUTHENTICATION FOR A BEV CHARGER - A vehicle system has a first communication device configured to selectively associate with a second communication device of a premise system based on a location of the vehicle with respect to the premise system and a vehicle identification. A charging control system is configured to permit charging of the vehicle in response to the selective association between the first and second communication devices. | 2015-01-22 |
20150022152 | VEHICLE CHARGING APPARATUS - A vehicle charging apparatus mounted on a vehicle for charging an on-vehicle battery from an external power supply, with a charging plug connected to the vehicle, includes a communication device that is configured to perform communication with a charging facility providing the external power supply with the charging plug connected and locked to the vehicle. The communication device prohibits disconnection of the communication when an unlocking operation to unlock the charging plug is executed during charging from the external power supply to the on-vehicle battery. | 2015-01-22 |
20150022153 | DETECTION OF A LEAKAGE CURRENT COMPRISING A CONTINUOUS COMPONENT IN A VEHICLE - The invention relates to a device for detecting a leakage current, comprising means ( | 2015-01-22 |
20150022154 | POWER SOURCE DEVICE HAVING STANDBY POWER-CUTOFF FUNCTION, AND METHOD FOR CONTROLLING SAME - Disclosed is a power source device having a standby power-cutoff function, which is to be used to charge a battery. The power source device comprises: a micro-USB connector ( | 2015-01-22 |
20150022155 | BATTERY CELL VOLTAGE EQUALIZATION CIRCUIT - A battery cell voltage equalization circuit | 2015-01-22 |
20150022156 | BATTERY MODULE, METHOD FOR MANAGING SUPPLY OF ELECTRICAL POWER BY THE BATTERY MODULE, AND POWER SUPPLY DEVICE HAVING THE BATTERY MODULE - A battery module includes a plurality of battery units, each of which supplies electrical power to a load through a respective linear regulator. In a method for managing supply of electrical power by the battery module, a number of battery units that supply electrical power to the load is controlled according to magnitude of a current required by the load, so as to reduce power loss in the linear regulators. | 2015-01-22 |
20150022157 | CONTROL APPARATUS AND CONTROL METHOD FOR SECONDARY BATTERY - A control apparatus has a controller configured to control charge and discharge of a secondary battery. The controller acquires a positive electrode potential and a negative electrode potential of the secondary battery. The controller controls the charge and discharge of the secondary battery such that each of the positive electrode potential and the negative electrode potential changes within a range between an upper limit value and a lower limit value set for each of the positive electrode potential and the negative electrode potential. | 2015-01-22 |
20150022158 | CONTROL DEVICE FOR SECONDARY BATTERY, AND SOC DETECTION METHOD - A control device of a secondary battery using, as positive electrode material, positive electrode active material showing a difference of an open circuit voltage curve between during charge and discharge, detects whether the secondary battery is in a charge state or a discharge state. When the secondary battery is in the charge state, the control device calculates, as a current SOC, a value that is lower than an SOC corresponding to a current open circuit voltage of the secondary battery on a reference SOC-open circuit voltage curve showing a relationship between the SOC and the open circuit voltage, which becomes a reference upon calculating the current SOC. When the secondary battery is in the discharge state, the control device calculates as the current SOC, a value that is higher than the SOC corresponding to the current open circuit voltage of the secondary battery on the reference SOC-open circuit voltage curve. | 2015-01-22 |
20150022159 | DETECTION OF A MALFUNCTION IN AN ELECTROCHEMICAL ACCUMULATOR - An electrochemical accumulator, including a casing, at least two electrodes and an electrolyte contained in the casing. There is a ferromagnetic material contained in the casing and having remanent magnetization. There is also a magnetic sensor arranged outside the casing and capable of measuring a remanent magnetic field of said ferromagnetic material. There is further included a circuit configured to determine the temperature inside the casing as a function of the measured remanent magnetic field. | 2015-01-22 |
20150022160 | ADAPTIVE EFFECTIVE C-RATE CHARGING OF BATTERIES - The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system obtains a voltage of the battery and a state-of-charge of the battery. Next, the system calculates an effective C-rate of the battery using the voltage and the state-of-charge. Finally, the system uses the effective C-rate to manage a charging process for the battery. | 2015-01-22 |
20150022161 | ELECTRIC VEHICLE AND METHOD OF OPERATING SAME - An electric vehicle charges a battery through an electric vehicle power supply apparatus, and periodically checks a current charged state of the battery during a charging operation. During the charging operation, the electric vehicle transmits to a user terminal a first charging information notifying message including information on a current charged state of the battery. When the completion of charging of the battery is detected, the electric vehicle transmits to the user terminal a second charging information notifying message providing notification of the completion of charging of the battery. | 2015-01-22 |
20150022162 | DISCHARGE CIRCUIT UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - A discharge circuit unit for minimizing standby power occurring in a standby mode and an image forming apparatus having the same are provided. The discharge circuit unit is connected to an input line of alternating current (AC) power and discharges a capacitive element for reducing noises. The discharge circuit unit includes a discharge circuit including first and second resistance units connected in series to discharge the capacitive element in response to a discharge control signal generated when an input of the AC power is interrupted, and a detection circuit that detects whether the input of the AC power is interrupted, and includes third and fourth resistance units connected in series so as to generate the discharge control signal when it is detected that the input of the AC power is interrupted. Each of the first to fourth resistance units includes at least one of a resistor and a switch. | 2015-01-22 |
20150022163 | PFC CIRCUIT - In one embodiment, a power factor correction (PFC) circuit can include: (i) a rectifier bridge and a PFC converter coupled to an input capacitor; (ii) a harmonic wave compensation circuit configured to shift a phase of a DC input voltage provided from the rectifier bridge, where the harmonic wave compensation circuit comprises a phase of about −45° when a corner frequency is about 50 Hz; and (iii) a PFC control circuit configured to control the PFC converter, where the PFC control circuit comprises a first sampling voltage, and the harmonic wave compensation circuit is configured to control a phase of the first sampling voltage to lag a phase of the DC input voltage by about 45°. | 2015-01-22 |
20150022164 | POWER FACTOR CORRECTION CONVERTER AND CONTROL METHOD THEREOF - A power factor correction converter and a control method are disclosed. A power factor correction converter includes a power conversion module, a capacitor, a third switch unit, and a fourth switch capacitor. The power conversion module includes a first switch, a second switch, a first switch unit, a second switch unit, and an inductor. The first switch is coupled to a first input terminal. The second switch is coupled to a second input terminal. The first switch is coupled between an output terminal and the first switch. The second switch is coupled between the output terminal and the second switch. The inductor is coupled between the first and the second switch unit. The capacitor is coupled to the output terminal. The third switch unit is coupled between the second input terminal and the capacitor. The fourth switch unit is coupled between the first input terminal and the capacitor. | 2015-01-22 |
20150022165 | SWITCHING POWER SUPPLY DEVICE AND PULSE WIDTH MODULATION CIRCUIT USED THEREIN - A problem of the present invention is to provide a switching power supply device and a pulse width modulation circuit capable of operating stably in synchronization with a clock signal. To solve the problem, a pulse width modulation circuit | 2015-01-22 |
20150022166 | Low-Dropout Voltage Regulator - A low-dropout voltage regulator includes a power transistor configured to receive an input voltage and to provide a regulated output voltage at an output voltage node. The power transistor includes a control electrode configured to receive a driver signal. A reference circuit is configured to generate a reference voltage. A feedback network is coupled to the power transistor and is configured to provide a first feedback signal and a second feedback signal. The first feedback signal represents the output voltage and the second feedback signal represents an output voltage gradient. An error amplifier is configured to receive the reference voltage and the first feedback signal representing the output voltage. The error amplifier is configured to generate the driver signal dependent on the reference voltage and the first feedback signal. The error amplifier includes an output stage that is biased with a bias current responsive to the second feedback signal. | 2015-01-22 |
20150022167 | System and method to eliminate transition losses in DC/DC converters - Various embodiments of the invention reduce switching losses associated with existing non-zero volt switching and non-zero current switching in DC/DC converters without the need for a resonant design. Certain embodiments of the invention provide for improved efficiency by reducing switching losses related to the simultaneous presence of current and voltage across high power switching devices. In certain embodiments, this is accomplished by adding a relatively small inductor and two switching elements to various switching regulator topologies. Energy stored in the inductor is used to transition the output of the switching converter to achieve zero volt switching and zero current switching. | 2015-01-22 |
20150022168 | OUTPUT CURRENT CONTROL IN A BOUNDARY CONDUCTION MODE BUCK CONVERTER - A switching power converter has an input voltage source. An output load is coupled to the input voltage source. An inductive element is coupled to the load. A switch is coupled to the inductive element. A control circuit is coupled to the switch and the inductive element for activating and deactivating the switch, the control circuit activating and deactivating the switch based on a negative voltage drop across a resistive element of the control circuit. | 2015-01-22 |
20150022169 | FEEDBACK/FEED FORWARD SWITCHED CAPACITOR VOLTAGE REGULATION - A method of controlling a switched capacitor voltage regulator includes modifying a topology factor associated with the switched capacitor voltage regulator in response to a change in output voltage associated with the switched capacitor voltage regulator, thereby maintaining an average output voltage associated with the switched capacitor voltage regulator. The method also includes modifying a loop delay associated with the switched capacitor voltage regulator in response to a change in operational frequency associated with the switched capacitor voltage regulator, thereby reducing ripple amplitude associated with the switched capacitor voltage regulator. A corresponding feedback/feed forward switched capacitor voltage regulator, controller, computer-readable medium, and voltage regulation system are also disclosed. | 2015-01-22 |
20150022170 | DRIVER AND DRIVING CONTROL METHOD FOR POWER CONVERTER - A driver and a driving control method for a power converter are provided. The driver includes a level shift circuit, a negative voltage generator and a first PMOS transistor. The level shift circuit provides an output signal, wherein the output signal has a first operation voltage and a second operation voltage. When the output signal received by the negative voltage generator is the first operation voltage, the negative voltage generator outputs the first operation voltage. When the output signal received by the negative voltage generator is the second operation voltage, the negative voltage generator generates and outputs a third operation voltage, and the third operation voltage is lower than the second operation voltage. A control terminal of the first PMOS transistor is coupled to an output terminal of the negative voltage generator. An output terminal of the first PMOS transistor provides a driving voltage. | 2015-01-22 |
20150022171 | PHASE ADJUSTMENT CIRCUIT OF POWER CONVERTER, POWER CONVERTER, AND CONTROL METHOD THEREOF - A phase adjustment circuit of a power converter, the power converter, and a control method of the power converter are provided. The control method includes following steps. A delay signal is generated according to an error signal, and the error signal is associated with an output voltage of the power converter. A difference between the error signal and the delay signal is amplified. A control signal is provided according to the amplified difference and the error signal, and a phase of the control signal leads a phase of the error signal. The control signal serves to improve a response speed of the power converter. | 2015-01-22 |
20150022172 | DC TO DC CONVERTER - A DC to DC converter includes an inductor having a first terminal and a second terminal, the first terminal coupled to an input of the DC to DC converter and the second terminal being coupled to an output of the DC to DC converter. A first switch is coupled between the second terminal and a current sensor. The switch controls current flow through the inductor and generates an inductor current signal representative of the current flow through the sensor. A slope generator generates a slope compensation signal. A first mixer adds the slope compensation signal to the inductor current signal. A sample and hold circuit samples a portion of the slope compensation signal. A second mixer subtracts the sampled portion of the slope compensation signal from the output of the first mixer, wherein inductor charging is terminated in response to the output of the first mixer. | 2015-01-22 |
20150022173 | RECONFIGURABLE POWER REGULATOR - The present disclosure shows ways to use multiple “integrated voltage regulator (IVR) units” to offer IVRs that can cover a wide range of specifications without having to design separate IVRs for different specifications. Instead of designing separate IVRs and paying for separate mask sets for IVRs targeting different specifications (e.g., different design and mask sets for 1 A IVR, 5 A IVR), the disclosed embodiments present ways to design and fabricate large numbers of the same unit IVRs (e.g., 1 A IVR) and decide how many of them to use post-fabrication to deliver different current specifications (e.g., use five 1 A unit IVRs for 5 A, use ten 1 A unit IVRs for 10 A). These disclosed embodiments reduce the mask cost of fabricating IVRs for different specifications and reduce design time by focusing on a single unit IVR. | 2015-01-22 |
20150022174 | METHOD AND APPARATUS FOR CONTROL OF SWITCHED-MODE POWER SUPPLIES - The present invention relates to nonlinear and time-variant signal processing, and, in particular, to methods, systems, and apparatus for adaptive filtering and control applicable to switching power supplies. | 2015-01-22 |
20150022175 | VOLTAGE LIMITER AND USE OF A VOLTAGE LIMITER TO DETERMINE VALUES OF A POWER SEMICONDUCTOR ELEMENT - A voltage limiter for power components includes: a unipolar primary transistor, including a drain terminal connected to an input of the voltage limiter, a source terminal connected to an output of the voltage limiter, and a gate terminal connected to a predetermined potential. The gate terminal connected to the predetermined potential is configured to limit an input voltage signal at the drain terminal to a predetermined maximum value at the source terminal. | 2015-01-22 |
20150022176 | Power Converter with inductance invariance - An improved power converter is disclosed. | 2015-01-22 |
20150022177 | ADAPTIVE LDO REGULATOR SYSTEM AND METHOD - An adaptive low dropout voltage regulator (LDO) circuit having low power dissipation, and a method of regulating voltage while maintaining low power dissipation. Power dissipation in an LDO circuit is controlled and held to a low value using an LDO circuit that maintains a constant voltage difference between Vin and Vout; that is, ΔV=Vin−Vout is approximately constant rather than linearly variable as a function of Vin. The output voltage Vout essentially tracks the input voltage Vin with an offset equal to ΔV; Vout increases as Vin, but is kept between minimum and maximum voltage output specification limits. | 2015-01-22 |
20150022178 | REFERENCE VOLTAGE GENERATING CIRCUITS - A reference voltage generating circuit. A bandgap circuit includes a current mirror circuit and an output circuit. The current mirror circuit generates a first current. The output circuit generates a reference current based on the first current. A compensation circuit is coupled to the bandgap circuit in parallel at a combination node and generates a compensation current. The compensation current is smaller than the reference current. The reference current has a first temperature coefficient and the compensation current has a second temperature coefficient that is inverse to the first temperature coefficient. The reference current and the compensation current are combined at the combination node, such that an absolute value of a temperature coefficient of the reference voltage of the combination node is smaller than an absolute value of the first temperature coefficient and an absolute value of the second temperature coefficient. | 2015-01-22 |
20150022179 | VOLTAGE TRANSFORMER HAVING A FIRST PARALLEL CONNECTION - A voltage transformer is described, which includes a. first parallel connection of a first capacitor having a number of N>=1 actuators connected in parallel having N-input voltages and N-input currents. A second capacitor is connected to the first parallel connection in series, the capacitor voltage being lower than or equal to the lowest input voltage of the actuators. | 2015-01-22 |
20150022180 | Method and Apparatus for Phase Identification in a Three-Phase Power Distribution Network using Servers - A remote phase identification system identifies the unknown phase attribute of any energized conductor within a three-phase power distribution network. A base station at a reference location obtains a reference phase each GPS second and stores it on one or more servers. A field probe at a remote location obtains an instantaneous phase measurement at a GPS second and communicates this phase to a field client. The field client communicates with the server either by wireless Internet or satellite modem to compare its field location phase measurement with the reference location phase measurement taken at the same GPS second. Field client tagging reference phase configuration files are automatically created for any circuit. Configuration files can be named, saved, and loaded and are used by the field client to identify and display the unknown field location phase attribute. A field client can be any personal computer, smartphone, or personal digital assistant. | 2015-01-22 |
20150022181 | Analytical Gateway Device for Measurement Devices - An analytical gateway device receives measurement data comprising one or more measurement values from one or more measurement devices. The gateway device selects a measurement application from a plurality of measurement applications available for execution (e.g., on the gateway device or some other computing device) based at least in part on the measurement data. For example, the measurement application can be selected based on measurement type information. The measurement type information may include one or more measurement units associated with the measurement values. The gateway device may cause a user interface (or some other information) associated with the measurement application to be presented on a display (e.g., a display of the gateway device or some other computing device in communication with the gateway device). | 2015-01-22 |
20150022182 | MONITORING DEVICE AND METHOD FOR MONITORING A LINE SECTION USING A MONITORING DEVICE - A monitoring device is provided that includes a first line section with a first connection point and a second connection point spaced apart from the first connection point in the direction of the line, and with a control unit and with a first current sensing unit, having a current source. A first switch is inserted into the first connecting line and connects the first current source to the first connection point or disconnects it therefrom. In a first state the first switch is closed and the first current is impressed on the first line section and a first voltage determined by the amplitude of the actual current, and in a second state the first switch is open and a second voltage is determined, and the control unit is configured to ascertain the amplitude of the first actual current from the two voltages. | 2015-01-22 |
20150022183 | Accessory Presence Detection - Disclosed is an electronic circuit with a first terminal for connecting an accessory thereto, and with a functionality for detecting the presence of an accessory connected to the first terminal. | 2015-01-22 |