Abstract: In embodiments of the present invention improved capabilities are described for systems and methods that provide for a power outage lighting management within an environment, comprising a power outage detection device adapted to detect a power outage condition and to wirelessly transmit power outage indication data to a plurality of lighting systems within the environment, where at least one of the plurality of lighting systems include an LED light source that is powered by an internal power source.

Abstract: A light emitting diode (LED) lamp includes a base; an LED fixed to the base; an integrated circuit providing constant current or voltage control to the LED; and connectors for coupling one or more wires conducting electricity to the integrated circuit. The base may include holes to facilitate mounting thereof to an external surface. The respective sides of the base may be rounded in shape. The sides of the base may be of an electrically non-conductive material. The LED may be a long LED; a short LED; a frosted LED; a RBG LED; or a single color LED. The LED may be a through hole LED or a surface mounted LED. The LED may be a surface mounted LED or a lens. The lens may include the shape of at least one of: a circle; a star; a triangle; a square; or a bullet.

Abstract: A lighting device including a reflector including a reflecting surface, and a light source unit disposed under the reflector and configured to emit light towards the reflector. Further, the light source unit includes a main body disposed longitudinally along the reflector and having first and second outside surfaces that are inclined towards the reflecting surface, and a plurality of first light emitting diodes disposed on the first outside surface and a plurality of second light emitting diodes disposed on the second outside surface and configured to emit the light towards the reflector.

Abstract: A light plate includes a light guide plate and four light source modules. The light source modules are disposed around the light guide plate. Each of the light source modules includes a first white light emitting element and a second white light emitting element. The first white light emitting element is capable of emitting a first white beam. The second white light emitting element disposed beside the first white light emitting element is capable of emitting a second white beam. The first white light emitting elements of the light source modules are mirror-symmetrical with respect to a first reference plane and a second reference plane. The second white light emitting elements of the light source modules are mirror-symmetrical with respect to the first reference plane and the second reference plane. The correlated colour temperature (CCT) of the first white beam is greater than the CCT of the second white beam.

Abstract: In a circuit arrangement for controlling light emitting diodes (LED's) combined in groups, with at least one driver which has current outputs, via which current can be delivered to the LED's, as well as a control input by which the current supplied to the LED's is adjustable, the current control input is connected to the voltage output of a voltage source.

Abstract: The invention relates to a method and a device for controlling gas discharge lamps using a direct current/alternating current inverter (DC/AC inverter) that is operated at a predetermined frequency and that generates an AC output voltage U for operating the gas discharge lamps from a DC input voltage which has a residual ripple. According to the invention, the DC/AC inverter is operated in zero voltage switching (ZVS) mode, wherein the DC input voltage is used as the control variable for the lamp current IL, wherein fluctuations in the lamp current IL caused by the residual ripple of the DC input voltage are compensated by a variation in the switch-on times and/or switch-off times of the switching elements QH, QL of the DC/AC inverter.

Abstract: A control device and an LED light emitting device using the same are provided and technology of providing a high contrast ratio to the LED light emitting device and allowing the LED light emitting device to perform a stable operation is disclosed. The LED light emitting device includes a DC/DC converter reference voltage generator that generates a DC/DC converter reference voltage so that a minimum level of a channel voltage having a largest LED voltage drop agrees with a predetermined minimum reference voltage by detecting a plurality of channel voltages corresponding to LED voltage drops of each of a plurality of LED channels LED and an output voltage controller that controls an output voltage of the DC/DC converter using a distribution voltage corresponding to an output voltage and the DC/DC converter reference voltage.

Abstract: An apparatus and method for dimming a light emitting diode (LED) driver. The apparatus includes a triode alternating current (TRIAC) dimmer and an LED driver receiving an input voltage from an output of the TRIAC dimmer so that the state of the LED driver is controlled by the TRIAC dimmer. The LED driver includes an active damping circuit configured for damping, upon detecting a rising edge of a bridge rectified input voltage, resonance caused by the TRIAC dimmer and the LED driver for a fixed period of time.

Abstract: Systems, devices and methods for electronically marking a housing of a portable electronic device are disclosed. When the housing of the portable electronic device is electronically marked, the marking(s) are non-permanent and able to be rapidly and dynamically changed. The marked housing can provide notification or guidance to a user. The housing can also be electronically marked in a manner that facilitates low power operation of the portable electronic device. The portable electronic device can, for example, be a mobile phone (e.g., cell phone), a personal digital assistant (PDA), a computer peripheral (e.g., mouse), a portable media player, and the like.

Abstract: A high pressure discharge lamp lighting device comprising an inverter, an igniter, a controller, a pulse voltage detection circuit, and the starting pulse voltage regulation circuit. The inverter applies a lighting voltage to a high pressure discharge lamp. The controller applies the starting pulse voltage generated by the igniter to the high pressure discharge lamp. The pulse voltage detection circuit is configured to detect a voltage indicative of the starting pulse voltage to output a detection signal. The starting pulse voltage regulation circuit is configured to regulate the starting pulse voltage to a desired value of the starting pulse voltage on the basis of the detection signal. The pulse voltage detection circuit is configured to detect either one of the voltage developed in the specified circuit component of the igniter and the starting pulse voltage as the voltage indicative of the voltage indicative of the starting pulse voltage.

Abstract: A high pressure discharge lamp lighting device in this invention comprises a converter, an inverter, an igniter, a controller, and a pulse voltage detection circuit. The converter outputs the direct current voltage. The inverter converts the direct current voltage into the lighting voltage which is alternating current voltage, and applies the lighting voltage to the high pressure discharge lamp through an output terminal. The igniter is configured to output the pulse voltage superimposed on the lighting voltage, whereby the starting voltage is applied to the high pressure discharge lamp. The controller is configured to control the igniter to allow the igniter to superimpose the pulse voltage on the lighting voltage. The pulse voltage detection circuit detects the starting voltage to output the detection signal. The starting voltage regulation circuit regulates the starting voltage to the desired voltage value of the voltage on the basis of the detection signal.

Abstract: An output stage for an LED driver is provided. In particular, a low voltage clamp, which uses several cascode circuits, is provided to protect low voltage switching transistors in the range of two times higher voltage application under both normal and fault conditions. Additionally, a circuit for regulating the bias voltage applied to each of the cascode circuits is provided to prevent damage during startup, while an internal voltage regulator is settling.

Abstract: A phase-controlled power delivery system for a load such as an incandescent lamp controls the rate of transition of an AC power waveform as a function of switch temperature or other heat-related parameter to provide for time-varying optimization of a tradeoff between heat and noise.

Abstract: An organic electroluminescent device includes: a pair of electrodes; a first light-emitting region that is disposed between the pair of electrodes, and that emits light when a voltage is applied between the pair of electrodes such that one of the pair of electrodes serves as an anode; and a second light-emitting region that is disposed between the pair of electrodes, and that emits light when a voltage is applied between the pair of electrodes such that the other of the pair of electrodes serves as an anode.

Abstract: A lighting system (20) comprises a plurality of light units (1, 6, 10, 11), each light unit (1, 6, 10, 11) including a photo sensor (2, 7), a light source (4, 9) and a control unit (3, 8) adapted to operate the light source (4, 9) and to modulate the light emitted by the light source (4, 9) so as to transmit data, wherein the light units (1, 6, 10, 11) are arranged according to a ring topology.

Abstract: A lighting device comprising: a shell, a plurality of luminophors, a first slideway and a second slideway. The plurality of luminophors is set in an external surface of the shell. The first slideway and the second slideway each of which comprise an up peristome and a down peristome respectively. A plurality of trigger switches is set in the first slideway. Each of which is configured for connecting/disconnecting a first circuit, so as to turn on/off the one or more luminophors. A ball is located movable along the slideways. A launching device is set in a bottom of the second slideway and is configured for driving the ball to move. A controlling unit is configured for connecting/disconnecting a second circuit, so as to connect/disconnect a power supply, which supplies power for the lighting device via the first circuit.

Abstract: A high-brightness LED lamp with battery conservation and solar charging features. The portable, self-contained lamp utilizes one or more high-brightness LEDs to provide area or decorative illumination. A solar cell charging device maintains the rechargeable batteries during the daytime with available ambient light. An electronic control circuit conserves battery power by limiting the period of time that the LEDs are energized during nighttime hours when ambient lighting conditions cannot support the recharging function. A photodetector device allows the control circuit to make this determination.

Abstract: A light emitting device comprising a staggered composition quantum well.

Abstract: For providing a lamp lighting device and a filament lamp wherein a wire breakage of the filament lamp can be detected without an excessive consumption of power while the device as a whole is not enlarged, a filament lamp is provided comprising a light emission tube having at least one sealing portion and in the interior of which at least one filament is arranged, internal leads connected to both ends of said filament, metal foils for power supply provided in said at least one sealing portion of the light emission tube and connected to said internal leads, and external leads connected to said metal foils for power supply; wherein a metal foil for detection is provided in said sealing portion and is connected to one of a said internal lead and a said metal foil for power supply, and an external detection lead is provided at said metal foil for detection.

Abstract: A particle accelerator includes a power supply arrangement, multiple solid-state switched drive sections, a plurality of magnetic core sections and a switch control module. The drive sections are connected to the power supply arrangement for receiving electrical power therefrom, and each drive section includes a solid-state switch, electronically controllable at turn-on and turn-off, for selectively providing a drive pulse at an output of the drive section. The magnetic core sections are symmetrically arranged along a central beam axis, and each magnetic core of the sections is coupled to a respective drive section through an electrical winding connected to the output of the drive section. The switch control module is connected to the drive sections for providing control signals to control turn-on and turn-off of the solid state switches to selectively drive magnetic cores to induce an electric field for accelerating the beam of charged particles along the beam axis.

Abstract: An electric motor drive control apparatus includes a detection angle obtaining section that obtains the detection angle of the resolver; a correction information storage section that stores correction information for correcting the detection angle, in association with a modulation ratio that is a ratio of an effective value of a fundamental wave component of the AC voltage to the system voltage; and a detection angle correcting section that obtains the correction information from the correction information storage section, based on the modulation ratio at the time the detection angle obtaining section obtains the detection.

Abstract: The present invention provides a permanent-magnet-type rotating electrical machine capable of realizing variable-speed operation in a wide range from low speed to high speed at high output and improving, in a wide operating range, efficiency, reliability, and productivity. A narrow magnetic path 11 is formed in a rotor core 2 of a rotor 1 at an inter-pole yoke that magnetically connects adjacent pole core portions 7 to each other, so that the narrow magnetic path is magnetically saturated with flux of a magnetic field created by a predetermined magnetizing current passed to an armature coil 21. Each of first permanent magnets 3 at each of the pole core portions 7 is magnetized with a magnetic field created by a magnetizing current passed to the armature coil 21, to irreversibly change the flux amount of the first permanent magnet.

Abstract: A method for starting a brushless DC motor. A rotor is aligned with a stator in accordance with a predetermined phase. After alignment, the rotor is positioned in accordance with another phase, two phases are skipped, a timer is set to a first count time, and the rotor is aligned with the stator in accordance with a third phase. Then the timer is restarted and the rotor is aligned with the stator in accordance with a fourth phase. After a first delay, first back electromotive force value is stored. The timer is stopped when the first back electromotive force value substantially equals a peak amplitude of opposite polarity. The timer is updated to a second count time that is substantially equal to a time at which the second timer was stopped. The process is repeated until the rotor has a position and a velocity that are suitable for normal operation.

Abstract: A controller (100) for controlling a salient-pole machine (200) is disclosed. The controller (100) is adapted to determine at least one operational parameter of the salient-pole machine (200), such as for example a rotor position, a rotor angle or a steady-state voltage. The controller (100) comprises a calculating unit for calculating test pulse properties for test pulses for supply to phase inputs of the salient-pole machine. The test pulse properties thereby comprise a pulse width and the calculating unit (110) is adapted for determining the pulse width in an adaptive manner.

Abstract: A method for controlling an electric motor with a softstarter. A softstarter device for control of electric motors. Motor torque is controlled in dependence of a torque error signal, based on a calculated difference between the motor torque and a reference torque value, so that the motor torque displays a rate of change with respect to time, during a stopping or starting time interval, that is adapted to follow a rate of change of the reference torque value, with respect to time, that varies between at least a first part of the time interval and a second part of the time interval, and thereby changing the speed of the motor. A system includes an electric motor, a device driven by the electric motor and a softstarter device for controlling the electric motor. A computer program product includes a computer readable medium and a computer program recorded thereon.

Abstract: A rotary electric machine having plural rotary elements in a non-coaxial arrangement is disclosed. The rotary electric machine includes a housing assembly, at least one stator frame mounted in the housing assembly, at least one stator winding wound on the at least one stator frame, and at least two rotors mounted in the housing assembly having axes of rotation that are non-coaxial, wherein each of the at least two rotors is mechanically decoupled from the other rotors such that each of the at least two rotors rotates independent from one another. The rotary electric machine also includes a control unit, with the control unit including at least one electronic control electrically connected to the at least one stator winding. The control unit is configured to control an exchange of power to or from each of the at least one stator windings.

Abstract: A circuit for controlling a rotation speed of a fan of an electronic device according to a temperature of the electronic device. The circuit senses the temperature of the electronic device, and outputs a voltage changing with the sensed temperature. The rotation speed of the fan changes with the voltage. The circuit slows the rotation speed of the fan down when the sensed temperature of the electronic device is decreased.

Abstract: Method and apparatus for controlling an apparatus transmitting power between two electricity networks or between an electricity network and a polyphase electric machine (M/G), which electricity networks can be polyphase alternating-current networks or one of them can be a single-phase direct-current network, and which apparatus comprises low-voltage power cells (C), which comprise a single-phase output connection (OUT). The power cells also comprise a single-phase input connector (IN), the power cells are arranged into groups (G1-GN, GP1-GPN1, GS1-GSN2, G1??-GN??) such that at least one power cell per each phase of the electricity network or of the electric machine belongs to each group, and the input terminals (IN) of all the power cells belonging to the same group are connected to a common transformer, which transformer comprises its own separate winding that is galvanically isolated from the others for the power cell connected to it.

Abstract: A motor load control apparatus capable of suppressing heat generation of an electronic switch and suppressing occurrence of noise associated with rotation of a fan and vibration of the fan is provided. A switch section (17) in which a first electronic switch (T1) and a second electronic switch (T2) are connected in parallel is provided, and the first electronic switch (T1) is driven by a PWM signal with a predetermined duty ratio and a predetermined frequency and the second electronic switch (T2) is driven in a state of delaying the PWM signal by which the first electronic switch (T1) is driven by a predetermined time. Consequently, as compared with the case of one electronic switch, a heating value of each of the electronic switches can be reduced and radiation measures of the whole apparatus can be reduced. Further, noise or vibration occurring by PWM control can be reduced by changing delay time at random.

Abstract: A conveyor system includes an electric motor to move a conveyor. A voltage determining device is coupled to an alternating-electricity source that supplies alternating electricity to the conveyor system. A power supply appliance supplies power between the electric motor and the alternating-electricity source. The power supply appliance includes an inverter and an inverter control. The inverter includes a rectifying bridge and a motor bridge. The rectifying bridge input is coupled to the alternating-electricity source and the rectifying bridge output is coupled to the motor bridge input. The motor bridge output is coupled to the electric motor. The inverter control is coupled between the voltage determining device and the motor bridge. The inverter control is responsive to frequency and phase of the determined voltage of the alternating-electricity source to adjust the frequency and phase of the motor bridge output voltage such that the motor bridge output voltage is made to be essentially constant.

Abstract: A servomotor control system includes: an integrated control unit for integrally controlling servomotors; and servomotor units coupled with the integrated control unit and the servomotors. Each servomotor unit includes: a motor driver; a rotation detector of the servomotor; an original point detector for detecting an original point of the servomotor; a communication element for obtaining control information including rotation position instruction information from the integrated control unit; a rotation position calculator for calculating a current rotation position of the servomotor based on a rotation detection signal; a motor drive instruction element for outputting driving instruction information to the motor driver according to the control information and the current rotation position; and a current rotation position correction element for resetting the current rotation position to a predetermined original point when the original point detector detects the original point.

Abstract: A motor control apparatus for controlling a DC motor includes a first detection unit configured to detect an angular velocity of the DC motor, a driven member configured to be driven by the DC motor, a control unit configured to perform, during start-up of the DC motor, feed forward control for changing a control value used for controlling drive of the DC motor from a first control value corresponding to an angular velocity smaller than a target angular velocity to a second control value corresponding to the target angular velocity, and to change the feed forward control to feedback control for controlling the control value based on a detection result by the first detection unit to keep the DC motor at the target angular velocity, and a second detection unit configured to detect whether the driven member has been replaced.

Abstract: Exemplary embodiments provide a method for connection or application of a converter to a rotating asynchronous machine which is operated without an encoder, without a high current and without a torque surge. The method provides a control unit, using an inverter or converter, for feeding the asynchronous machine which rotates at a mechanical rotary speed. The asynchronous machine is regulated by the control unit. A stator current vector is ascertained from measured currents of the stator windings of the asynchronous machine and a rotating stator voltage vector. Calculation is effected in respect of a stator flux change vector from the stator current vector, the stator voltage vector and a stator resistance in accordance with a motor model. An angle difference between the stator current vector and the stator flux change vector is calculated.

Abstract: An adjustable frequency drive includes a base having a first portion and a second portion, and an active front end converter disposed on the base. The converter includes an input, an output, and a plurality of first electronic switches electrically connected between the input and the output. An inverter is disposed on the base and includes an input electrically connected to the output of the active front end converter, an output, a plurality of capacitors disposed on the first portion of the base and electrically connected to the input of the inverter, a plurality of second electronic switches disposed on the second portion of the base and electrically connected between the input and the output of the inverter, and a heat pipe assembly. The inverter is structured to provide a single, three-phase output structure.

Abstract: The invention provides systems and methods for control of power charge/discharge from energy storage system. The invention also provides for power monitoring and management, including power management for a variable generator. An intelligent charge system may include a premise sensor, a variable generator sensor, one or more energy storage units, and a controller, which may receive information about the power demand, power provided by an electricity provider, and charge/discharge information from an energy storage unit. The information received may all be time synchronized in relation to a time based reference. The controller may provide instructions to an energy storage unit at a rapid rate.

Abstract: A polygonal power pad includes an optional connector to connect to a power supply and a power network in the power pad. At least one power connector is coupled to the power network and is disposed on a periphery of the pad. The power connector is operable to receive and provide power to a provided adjacent pad.

Abstract: A charging device includes a charging platform, a number of first electromagnetic induction devices, a first microprocessor, and a first current processing module. The first electromagnetic induction devices are disposed on the charging platform. The first microprocessor is configured for activating the first electromagnetic induction devices and identifying the first electromagnetic induction devices that generated effective differential signals. The first current processing module is configured for inputting an alternating current to the first electromagnetic induction devices selected by the first microprocessor.

Abstract: A non-contact charger includes a primary coil that transmits power in a non-contact manner to a load device through electromagnetic induction with a secondary coil of the load device when charging the load device, a charger body including the primary coil, and an information notification block fixed to the charger body. The information notification block includes a notification element that notifies a user of information of at least one of the charger body and the load device, and an auxiliary coil connected to the notification element. The information notification block uses power transmitted in a non-contact manner through electromagnetic induction between the primary coil and the auxiliary coil to activate the notification element to provide notification of the information of at least one of the charger body and the load device.

Abstract: A chargeable electric device includes a rechargeable battery. A secondary coil is arranged to be coupled by electromagnetic induction to a primary coil of a non-contact charger when charging the rechargeable battery. A resonance capacitor is connected to the secondary coil. A rectification unit is connected to the secondary coil. A charging current control unit arranged between the rectification unit and the rechargeable battery control charging current supplied from the rectification unit to the rechargeable battery. A resonance obstruction element obstructs normal resonance produced by the secondary coil and the resonance capacitor in synchronism with the control performed by the charging current control unit to suppress the charging current.

Abstract: A battery charger (100) includes a base (102) which selectively receives first (104a) and second (104b) battery pods. The battery pods (104a, 104b), which are adapted to receive one or more batteries (212) for charging, have a form factor which facilitates the handling of the pods (104) and the batteries (212) received therein. Charging energy may be allocated between the pods (104) as a function of the temporal sequence in which the pods (104) are received by the base (102). Charging energy may also be allocated among the batteries (212) so that the batteries (212) are substantially charged at about the same time.

Abstract: A system for monitoring an energy storage system composed of multiple cells connected in series has a chain of monitors including at least first and second monitors. The first monitor is configured for monitoring at, least a first cell in the energy storage system to produce first monitored data. The second monitor is configured for monitoring at least a second cell in the energy storage system to produce second monitored data. The first monitor is further configured for transferring the first monitored data to the second monitor for delivery to a controller.

Abstract: Systems and methods are herein disclosed for efficiently and cost-effectively balancing the voltages across batteries and/or cells in an energy storage system. A controller monitors the battery voltages and instructs regulator circuits to balance voltages between any batteries or sets of batteries having imbalanced voltages. Regulator circuits implementing a modified ?uk converter can be utilized. Regulator circuits can have two capacitive circuits, one inductive circuit, and two switches. Two capacitors, an inductor, and two field effect transistors can be used in each regulator circuit.

Abstract: A control unit includes a control device that outputs a first command signal to an equalizing unit, which has a discharge circuit for solving a dispersion of cell voltage in respective cells of a battery and a switch unit for connecting the discharge circuit to at least one of the cells, and a command signal outputting circuit that outputs a second command signal to the equalizing unit so that a connection between the discharge circuit and the at least one of the cells is forcibly disconnected, when an abnormal operation of the control device, disabling an output of the first command signal, is detected. When the equalizing unit receives the first command signal, the discharge circuit is connected to the at least one of the cells by the switch unit to discharge the at least one of the cells.

Abstract: A charging apparatus and a quality judging apparatus for a packed battery should be configured to prevent reduction of charging/discharging performance at the time of charging the packed battery, to improve reliability of the packed battery, and to secure safety of the packed battery.

Abstract: The present invention provides a battery charging system that includes: an assembled battery, in which a plurality of secondary batteries are connected in parallel using valve-regulated lead-acid batteries in which separators impregnated with electrolyte are arranged between mutually opposed plate-like positive electrodes and negative electrodes; and a plurality of charging units that are provided corresponding to the respective secondary batteries and that charge the corresponding secondary battery, respectively, wherein each of the charging units executes multistage constant-current charging in which constant-current charging is repeated a preset plurality of times for supplying current of a prescribed set current value to each corresponding secondary battery until the terminal voltage of the each corresponding secondary battery reaches a prescribed charging cutoff voltage, and also the set current value is reduced each time the constant-current charging is repeated.

Abstract: Electrode protection in electrochemical cells, and more specifically, electrode protection in both aqueous and non-aqueous electrochemical cells, including rechargeable lithium batteries, are presented. In one embodiment, an electrochemical cell includes an anode comprising lithium and a multi-layered structure positioned between the anode and an electrolyte of the cell. A multi-layered structure can include at least a first single-ion conductive material layer (e.g., a lithiated metal layer), and at least a first polymeric layer positioned between the anode and the single-ion conductive material. The invention also can provide an electrode stabilization layer positioned within the electrode, i.e., between one portion and another portion of an electrode, to control depletion and re-plating of electrode material upon charge and discharge of a battery.

Abstract: A method for managing electric quantity of a battery is disclosed. The method includes charging a battery normally with a 4.2V voltage when a temperature of the battery is lower than a first threshold temperature; charging the battery continuously when the temperature of the battery is higher than the first threshold temperature and lower than a second threshold temperature and the electric quantity of the battery is lower than a first threshold voltage. On the contrary, the battery is not charged any more when the temperature of the battery is between the first threshold temperature and the second threshold temperature and the electric quantity of the battery is higher than the first threshold voltage or a first capacity. If the temperature of the battery is higher than a second threshold temperature, the battery is not charged any more regardless of the battery voltage.

Abstract: A power supply topology according to one embodiment includes a first path coupled to a controllable DC power source, a second path coupled to a rechargeable battery, and a third path coupled to a system load, the three paths coupled to a common node. The topology may further include a unidirectional switch coupled to the first path and a selectively unidirectional switch coupled to the second path. The topology may further include a power management control circuit including a wake up circuit having a comparison circuit and an output decision circuit. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.

Abstract: The present subject matter provides apparatus and methods for controlling lithium deposition during manufacture of implantable medical device batteries. A method includes processing materials to form the battery and performing a discharge conditioning process step. The discharge conditioning process step includes using a reduced discharge load and applying a discharge load intermittently to decrease formation of lithium deposits on negatively charged surfaces within the battery.

Abstract: A system and method for battery protection. In some aspects, a battery pack includes a housing, a cell supported by the housing, a circuit supported by a flexible circuit board. The circuit is operable to control a function of the battery pack.