Abstract: Ultrashort pulse fiber amplifier having a pulse width from 200 ps to 200 fs comprising a rare earth oxide doped multicomponent glass fibers for laser amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, K2O, Na2O, Li2O, Y2O3, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from 25 to 120 micron, and a length of the gain fiber is shorter than 60 cm.

Abstract: A device for laterally coupling pump light into a fiber. A fiber runs in a longitudinal direction, having an optically active medium to be pumped and a lateral wall running approximately in the longitudinal direction, and at least one light coupler, at least some part of which runs parallel to the fiber along the lateral wall. The light coupler is an optical waveguide which is optically coupled to the fiber such that pump light propagating in the optical waveguide can be coupled into the fiber via the lateral wall. The efficiency of the pump light coupling is improved by a plurality of windings of the fiber being located alternately with waveguides on a substrate. The pump light can be coupled into all waveguides simultaneously, for example by a prism.

Abstract: A laser apparatus includes a semiconductor laser being a light source that emits light, an optical fiber that inputs the light emitted from the semiconductor laser and guides and outputs the light, and an optical resonator that has a laser medium into which the light output from the optical fiber is input and emits laser light. The optical fiber has a GI fiber constituting a part on a light input side and an SI fiber connected to the GI fiber and constituting a part on a light output side.

Abstract: A modulated light source includes an FP laser that emits light in a plurality of Fabry-Perot (FP) modes, a band-pass filter whose center wavelength can be modulated, a light reflector that selectively feeds only light having passed through the modulation filter back to the FP laser, and a wavelength adjustment mechanism that adjusts the center wavelength so as to coincide with one of the predetermined FP mode when the light fed back to the FP laser is used as seed light for stimulated emission of radiation to cause selective light emission at an oscillation wavelength.

Abstract: In various embodiments, laser apparatuses include thermal bonding layers between various components and creep-mitigation systems for preventing or retarding movement of thermal bonding material out of the thermal bonding layers.

Abstract: In various embodiments, laser apparatuses include thermal bonding layers between various components and sealing materials for preventing or retarding movement of thermal bonding material out of the thermal bonding layers.

Abstract: The invention relates to a tunable laser, the tunable laser comprising a first waveguide, a second waveguide and a semiconductor layer being arranged to separate the first waveguide from the second waveguide. The first waveguide comprises a first coupling portion and an active portion for generating a laser signal. The second waveguide comprises a second coupling portion and a tuning portion for tuning the wavelength of the laser signal. The first coupling portion and the second coupling portion are configured to couple the laser signal between the first waveguide and the second waveguide through the semiconductor layer.

Abstract: A spark plug includes: a metal shell including a tool engagement portion and having a through hole; an insulator disposed in the through hole of the metal shell; and a metal terminal including: a trunk portion disposed in an axial hole of the insulator; a flange portion having a larger diameter than the trunk portion; and a head portion having a smaller diameter than the flange portion. A minimum thickness of an exposed portion of the insulator is equal to or less than 2.5 mm. A diameter difference between the maximum outer diameter of the head portion and the maximum outer diameter of the tool engagement portion is equal to or less than 9 mm, or a diameter difference between the maximum outer diameter of the exposed portion and the maximum outer diameter of the head portion is equal to or less than 2.3 mm.

Abstract: A spark plug includes an insulator having a through hole formed in the direction of an axis, a rod-shaped center electrode inserted in the through hole and extending in the direction of the axis, a metal shell disposed around an outer circumference of the insulator, and a ground electrode electrically conducted with the metal shell and adapted to define a gap between the ground electrode and the center electrode. A front end part of the insulator has a front end surface, an outer circumferential surface and a curved surface region formed between the front end surface and the outer circumferential surface. In a cross section including the axis, a front end of an inner circumferential surface of the metal shell faces the curved surface region in a direction perpendicular to the axis. The curved surface region has a curvature radius of 0.2 mm to 0.8 mm.

Abstract: A packing is arranged between an outer-diameter-contracted portion of an insulator and an inner-diameter-contracted portion of a metal shell. In a contact portion of the packing and the insulator, a position at a most front end side is set as a first position. In a surface of a nose portion disposed at a front end side of the outer-diameter-contracted portion of the insulator, a position where a length from a front end of the insulator parallel to an axial line direction is 1 mm is set as a second position. A length between the first position and the second position parallel to the axial line direction is set as a first length. In the case where a load perpendicular to the axial line direction is applied to the second position, a ratio of stress at a surface position that is a position on a surface of the insulator to stress at the first position is set as a stress ratio. In a range of the surface position where the stress ratio is 0.8 or more to 1.

Abstract: Methods of making an insulator for a condition sensing spark plug and tooling that can be used to perform the various methods, the tooling and methods involving machining one or more channels in the insulator body. The machined channels can be used to accommodate one or more wires from a sensing, display, or processing device. In one particular example, the wires are thermocouple wires used to sense temperature in an internal combustion engine while the spark plug is in use. The methods and tooling may result in channels that are formed more precisely, economically, and efficiently.

Abstract: An igniter tip for a combustion system is provided. The igniter tip may include a central electrode; an insulator sleeve about the central electrode; and an outer electrode about the insulator sleeve, the outer electrode including a tubular wall having a cooling passage extending within the tubular wall, the cooling passage including an entrance opening and an exit opening to an exterior of the outer electrode. A combustion system may include the igniter tip.

Abstract: In an ion generation apparatus, induction electrodes are formed on a surface of a substrate, holes are provided inside the induction electrodes, respectively, needle electrodes are disposed in a substrate, and tip end portions of the needle electrodes are inserted into the holes, respectively. Furthermore, a part of each of the induction electrodes is removed, thereby reducing the size of the substrate for entire size reduction. By such a configuration, it becomes possible to provide an ion generation apparatus that can stably generate ions even in a high humidity environment and that can be mounted also in small-sized electrical equipment.

Abstract: A spring loaded, bistable connect/disconnect mechanism for a motor control center (MCC) unit 20, provides a secure and quick means to connect and disconnect the stab 30 of a MCC unit to a vertical power bus 24. The low profile mechanism comprises a series of flat links 6, 7, and 11 and an over-center spring 8 in the top of the MCC unit, for efficient use of space. The mechanism provides an additional force to quickly connect and disconnect the stabs to and from the power bus. The mechanism enables safe insertion and removal of the MCC unit from an MCC section, by incorporating interlocks 5 to prevent the MCC unit from being inserted when the stabs are extended and to prevent the MCC unit from being removed when the stabs are extended. Interlocks prevent the extension or retraction of the stabs when the handle is in an ON position.

Abstract: An apparatus for removing cables is provided. The apparatus includes a worktable. An upper surface of the worktable is used to fix at least one motherboard separately. Each motherboard includes a cable fixed thereon. The apparatus includes a feeding assembly, a driving assembly and a removing assembly. The driving assembly and the removing assembly are located on the feeding assembly. The feeding assembly is used to drive the driving assembly and the removing assembly to move to a pre-defined position. The driving assembly is used to drive the removing assembly to remove the cable from the motherboard.

Abstract: Provided is a wire gripper which is capable of efficiently supplying a gripping force without inviting an increase in size and weight. A wire gripper grips a sheathed wire which is illustrated by an imaginary line. The wire gripper has a base part which pivotally supports link pieces on the lower side thereof so as to be swingable. The link pieces have ends, respectively, both of which are coupled to an operating arm so as to form a parallel link. Illustrated are an upper gripping body (a first gripping body) and a lower gripping body (a second gripping body), by which the sheathed wire is sandwiched. Of the gripping bodies, the upper gripping body is secured to the base part. The lower gripping body is coupled to the link pieces so as to be retractable from the upper gripping body.

Abstract: A cable guide device operates as a cable bend limiting device that is removed once a cable is routed. The device includes a body portion and a guide surface. The body portion is configured to hold the device at a work area. The guide surface provides a surface along which the cable is routed. The guide surface may have a radius of curvature not less than the minimum bend radius of the cable.

Abstract: A cable jacket removal device is used to selectively remove a sheath from a length of a sheathed cable. The cable jacket removal device includes a support frame, a drive shaft, and a motor. The support frame removably couples the removal device to the cable to be stripped. The drive shaft is coupled to the support frame. The motor is coupled to the drive shaft to selectively rotate the drive shaft to cause the removal device to travel along the cable to automatically remove a cable jacket from a predefined distance of the cable.

Abstract: A curvature-restraining member includes a wire harness having an electric wire and a corrugated tube (flexible tube). The curvature-restraining member restrains the wire harness from curving in a predetermined curving direction D3 with a radius of curvature smaller than a reference radius. The curvature restraining member includes a body portion placed near at least one of ends of the corrugated tube and extending in a length direction of the electric wire, and a curved portion extending from one end of the corrugated tube opposite from the former end, and curving in the curving direction D3 with a radius of curvature not less than the reference radius with such a length that it falls within the straightly extending corrugated tube.

Abstract: An electric supply pop up apparatus with a safety system for use in a generally horizontal surface that has three main sections; a permanently installed, weatherproof containment unit with a bottom, at least one side wall and an open top; a moveable tower that has at least one side wall and a cover and at least one electrical receptacle module or electric vehicle charging components installed in said tower; and a safety system, hereby the tower is slideably moveable within the containment unit so that the tower can be raised or lowered within the containment unit such that when the tower is lowered and in a down position the tower is fully secured and enclosed within the containment unit or the tower can be raised to an up position so that the electrical module or electric vehicle charging components are accessible with power to a user.

Abstract: Compositions comprising ferrosoferric oxide dispersed in a polymer matrix. Such compositions may exhibit properties suitable for achieving both resistive field grading effects and capacitive field grading effects e.g. in electrical stress control devices and surge arrestor devices. Such compositions may optionally include one or more capacitive field grading additives and/or conductive additives.

Abstract: A reverse current protection (RCP) circuit is provided that includes an RCP switch coupled between a power supply rail and a buffer power supply node. A control circuit powered by a buffer supply voltage on the buffer power supply node controls the RCP switch to open in response to a discharge of a power supply voltage carried on the power supply rail.

Abstract: The invention relates to an arrangement for forming a thermal isolation point, consisting of an isolation strip to which a prestressing force can be applied, an electrical means which produces thermal energy and has a contact surface, in particular in the form of an overvoltage protection element or a component of such an element, as well as an integral connection means, which changes when heated in a defined manner in the aggregate state, in particular a solder. According to the invention, an adapter part is provided between the isolation strip and the contact surface of the electrical means, wherein the adapter part can on the one hand be connected to the contact surface in a purely interlocking and/or force-fitting manner, and on the other hand is connected in a manner which can provide thermal isolation integrally to the isolation strip.

Abstract: A circuit for protecting a semiconductor element is provided in a system for supplying power from an input node to an output node. The circuit has an analog multiplier responsive to a voltage across the semiconductor element and a current flowing through the semiconductor element to produce an output voltage. A transconductance amplifier is coupled to an output of the analog multiplier for receiving the output voltage of the analog multiplier to produce an output current. An analog RC circuit coupled to the output of the transconductance amplifier is configurable to include a selected number of resistive elements having selected resistance values and a selected number of capacitive elements having selected capacitance values. The configuration of the RC circuit is carried out to provide an RC thermal model that reproduces a desired thermal behavior of the semiconductor element.

Abstract: Provided herein are improved electrical circuit protection devices for protection against electrostatic discharge (ESD), the devices including a first support substrate, a first electrode and a second electrode formed on the first support substrate, wherein the first electrode and the second electrode are formed from a conductive material. The devices further include a first bonding pad disposed on the first and second electrode, the first bonding pad having a first cavity formed therein; a second support substrate disposed on the first bonding pad, the second support substrate having a second cavity formed therein, and a voltage variable material disposed within the first cavity and the second cavity and electrically connected to the first electrode and the second electrode. The devices further include a second bonding pad disposed on the second support substrate, and a third support substrate disposed on the second bonding pad.

Abstract: Electrostatic discharge protection circuits and methods for protecting a core circuit from an electrostatic discharge event. The protection circuit may include a first anti-parallel diode pair including a first terminal coupled to an input/output pad, and a second anti-parallel diode pair including a second terminal coupled to a negative power supply voltage. The second anti-parallel diode pair is coupled in series with the first anti-parallel diode pair at a node. An offset pad is coupled to the node. The offset pad is configured to receive a first signal that is a duplicate of a second signal that is received at the input/output pad.

Abstract: A method for verifying a power-management system including a controller and a plurality of power devices, wherein the controller receives a plurality of input signals to generate a plurality of control signals to control the power devices, includes: determining each of the power devices operating in a corresponding mode when the power-management operates under a power configuration; determining a target combination of the control signals when each of the power devices operates in the corresponding mode; patternlessly verifying a behavior of the controller with an input combination of the input signals for the power-management system operating under the power configuration to generate a calculated result of the control signals; comparing the calculated result to the target combination; and determining that the input combination is valid when the calculated result is equal to the target combination.

Abstract: A planning tool and method for energy asset sizing and optimal dispatch is provided for managing the inter-temporal optimization problem caused by adding energy assets to an energy system. The tool and method are configured to optimally size and to operate energy assets including energy storage assets. Value stream models, asset cost models, constraint and operation strategies are applied in the tool and the optimization process.

Abstract: A method for controlling an electrical energy distribution network in which electrical power is provided via network nodes connected via power lines is provided. A portion of the network nodes are controllable network nodes with respective local controllers, and at least a portion of the controllable network nodes are energy generators. The energy distribution network is coupled to an energy transmission network at a point of common coupling and provides electrical power to the energy transmission network at the point of common coupling. The electrical power originates from the controllable network nodes. A central controller communicates with the local controllers and the energy transmission network. The central controller controls the energy distribution network with the aid of the communication with the local controllers and the energy transmission network such that at the point of common coupling, primary control power and short-circuit power are kept available for the energy transmission network.

Abstract: A control apparatus includes a receiving unit, a demand response unit, a power consumption fluctuation unit, a fluctuation-amount-estimation unit and an adjustment control execution unit. The receiving unit receives a demand pertaining to power consumption sent from an energy management apparatus. The demand response unit executes a demand-response control in order to adjust total power consumption of a plurality of devices set up in a property in accordance with the demand. The power consumption fluctuation unit executes a non-demand-response control in order to cause total power consumption to fluctuate regardless of the demand. The fluctuation-amount-estimation unit estimates a power consumption that will fluctuate due to the non-demand-response control during the demand-response control.

Abstract: A method of monitoring an electrical installation comprising electrical feeders for powering devices in a regulated manner. The method comprises the steps of: consultation of a history of curtailments carried out on the feeders; as a function of the history consulted, determination for each of the feeders of a level of participation in a general electrical regulation of the installation; association of a curtailment priority rank with each of the participation levels determined for each of the feeders; and following the reception of a setting for general electrical regulation of the installation, curtailment of the feeders in order of priority rank.

Abstract: A method and system for reducing demand on a power grid through demand side management includes receiving assigned priorities from a customer for smart appliances and for appliances plugged into sockets of one or more smart plugs of the customer, the assigned priorities indicative of a customer-preferred sequence for disconnection of, or adjustment of power to, the appliances from the power grid. The system determines whether to disconnect or adjust power to at least one of the appliances of the customer; and selects at least one of the appliances according to the assigned priorities to reduce demand on the power grid. The system sends one or more commands, the one or more commands indicative to the one or more smart plugs to disconnect or adjust power to the selected at least one of the appliances based on selecting at least one of the appliances.

Abstract: Embodiments disclose using a pairing or pairings of terminals in a DC power system including a plurality of terminals to implement power oscillation damping (POD), where the DC power system is connectable to at least one AC power system. The active and/or reactive power of the terminals in the pairing may be controlled or modulated in a similar manner such that no power imbalance in the DC power system is created. For example, POD may be implemented by means of active and/or reactive power modulation by pairing two terminals in the DC power system) such that their active and/or reactive powers are controlled or modulated in the same or substantially the same manner or identically but with the opposite sign.

Abstract: The present invention relates to a monitoring and controlling system and method for megawatt level battery energy storage power plant, which includes a central monitoring and controlling module and local monitoring and controlling modules, between the two modules adopts real time and non real time communication parallel network structure to communicate with each other.

Abstract: A direct current power system includes a common direct current (DC) bus configured to supply power to a plurality of loads. A plurality of alternating current (AC) to DC converter bridges supply DC power to the common CD bus. Each of the AC to DC converter bridges is connected to the common DC bus by at least one split DC link. The at least one split DC link includes a small capacitor connected across output terminals of the respective AC to DC converter bridge and at least one diode coupled between two terminals of the small capacitor and the large capacitor in a way to block an instantaneous current flow from the common DC bus to the respective AC to DC converter bridge in case of a fault of the AC to DC converter bridge.

Abstract: A method for testing an electric system and an electric system comprising a first inverter (10) and one or more second inverters (11, 12, 1N), and control means (40) configured to start the first inverter (10), provide and sustain with the first inverter (10) an AC voltage of a predetermined magnitude and a predetermined frequency at an AC output of the first inverter, start at least one second inverter (11, 12, 1N), and supply with the first inverter (10) reactive power to the started at least one second inverter (11, 12, 1N).

Abstract: A solar power generation system includes a storage battery, a solar power generation device that is provided on the side of the storage battery and outputs solar generated power, and a power control device. The power control device includes a variation component extraction unit that extracts a shade variation component from a generated power signal measured by the solar power generation device, and a smoothing unit that smoothens the shade variation component obtained by the variation component extraction unit. The power control device obtains a charge/discharge target value of the storage battery on the basis of an output signal from the smoothing unit.

Abstract: A control system is provided for a solar panel. The control system includes a plurality of control elements that are individually connected to a corresponding segment of the solar panel. The control system also includes control logic that is structured to individually signal each of the plurality of control elements in order to cause the signaled control element to either switch-off or alter performance output to maximize the over all output of a solar panel or solar power generating system utilizing such panels.

Abstract: A control or management of a power router is more adequately performed when constructing a power network system in which power cells are asynchronously connected with each other. The power network system includes a first power router, a second power router and a management server. The first power router transmits power. The second power router receives the power from the first power router and the obtain information indicating the received power. The management server controls the power transmitted by the first power router base on the information indicating the received power.

Abstract: A power socket, particularly for use in vehicle seat, includes a socket housing, a power supply interface configured to receive electrical power from an external power supply, a power outlet arranged within the socket housing and configured to provide electrical power received from the external power supply to an electrical device plugged in at the power outlet, a wireless communication module arranged within the socket housing, and at least one manual control element connected to the wireless communication module and arranged in the socket housing, the manual control element being configured to control the wireless communication module to wirelessly transmit at least one control signal upon manual activation to a wireless receiver.

Abstract: A power supply system for an outboard motor includes a first terminal configured to supply electric power converted by a converting device to an engine accessory and to be capable of supplying the electric power to a portion external to an engine cover and a second terminal branched from a branch portion between the converting device and the engine accessory, configured to be capable of supplying the electric power to a portion external to the engine cover at a voltage higher than the voltage of the first terminal.

Abstract: Systems, apparatus, and methods for controlling power modes in electronic devices are provided. A system may include an electronic device and an input device that sends power mode selection information via a network to a power mode selection receiving component in the electronic device. The electronic device includes a first power component that powers a first component, and a switching component that controls the first power component. The electronic device may include a second power component that powers a second component. The switching component may control the second power component. The power mode selection receiving component and the switching component may be powered independently of the first and the second component. If the power mode selection information indicates an off mode, the electronic device may provide power to the power mode selection receiving component and the switching component and not to the first and the second component.

Abstract: A wireless power receiver may include a receive coil configured to generate an AC power signal, at least one secondary sensing coil configured to generate a measurement signal responsive to a magnetic flux field, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one measurement signal received from the secondary sensing coil. A related method may include receiving with a wireless power receiver a wireless power signal for wireless power transfer from a wireless power transmitter, generating with a plurality of secondary sensing coils one or more measurement signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more measurement signals generated by the plurality of secondary sensing coils.

Abstract: A power input circuit. A wireless power receiver receives power from a wireless power transmitter. A charging circuit is coupled to the battery. A first switch is controlled by a first control signal. A second switch is controlled by the first control signal. A third switch is coupled between the battery and the voltage input terminal and controlled by a second control signal. A fourth switch is coupled between the voltage input terminal and the charging circuit and controlled by a third control signal. A fifth switch is coupled between the wireless power receiver and the charging circuit and controlled by a fourth control signal. When the wireless power receiver receives power, the third switch and the fifth switch are closed to transmit the received power to the charging circuit for charging the battery, and the computer device is powered by the battery.

Abstract: Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.

Abstract: A standard two terminal battery package is configured to communicate with an external charger or load, without requiring modification to the battery mechanics and/or high current circuit components integral with the battery. A transmitter and receiver (transceiver) are incorporated into the battery housing. An associated battery charger and/or load, e.g., tool, appliance, vacuum, etc., has a corresponding transceiver configured to communicate with the battery transceiver. A microcontroller may be coupled to the transceiver. Serial number verification between the battery and tool load can be verified. Sensors for temperature, voltage, pressure and pH may be coupled between the battery and microcontroller for monitoring battery temperature, voltage charge and condition during operation or charging thereof. Information from these sensors and more may be communicated from the battery to the load or battery charger.

Abstract: A circuit arrangement includes a power semiconductor circuit, a first charge storage unit and a second charge storage unit. The first charge storage unit has first and second terminals, the second charge storage unit has first and second terminals, and the power semiconductor circuit has first and second terminals. The power semiconductor circuit also has a first semiconductor component and a second semiconductor component, the load paths of which are electrically connected in series between the first and second terminals of the power semiconductor circuit. A first connection electrically connects the first terminal of the first charge storage unit to the first terminal of the second charge storage unit, and a second connection electrically connects the second terminal of the first charge storage unit to the second terminal of the second charge storage unit. A magnetic core is electromagnetically coupled to the first and/or second connections.

Abstract: Battery controller chooses as a standard storage battery Bs one of the storage batteries which has the lowest voltage in storage batteries B1 to Bn. Battery controller obtains as a standard voltage Vs a voltage of the standard storage battery Bs, and obtains as a standard SOHs an SOH of the standard storage battery Bs. Battery controller specifies from storage batteries B1 to Bn a storage battery to be discharged by equalizing unit 450 based on a magnitude relation between an SOHj of each of the storage batteries and the standard SOHs and based on a voltage difference between the terminal voltage of each of the storage batteries and the standard voltage Vs. Battery controller performs an equalizing process by causing equalizing unit to discharge the specified storage battery.

Abstract: A battery equalization circuit is provided, including: a positive battery node connecting to a positive node of a battery cell in a battery circuit with a plurality of other battery cells; a negative battery node connected to a negative node of the battery cell; a transformer winding receiving an AC voltage, the transformer winding having an upper transformer node and a lower transformer node; an upper triac connected between the positive battery node and the upper transformer node; a lower triac connected between the negative battery node and the lower transformer node; a control circuit for controlling the upper triac and the lower triac based on a measured cell voltage between the positive battery node and the negative battery node, and a total battery voltage of the battery circuit; and an isolation element connected between the control circuit and a data bus.

Abstract: A device which includes interfaces, a measurement unit, a switching unit, and a control unit is used to parcel out charging currents to other chargeable devices, and allow partial charging of certain devices when full power is not available. The interfaces are connected to the chargeable devices. The measurement unit is connected to the power supply unit and the interfaces, and obtains a maximum supply current of the power supply unit and charging currents for the chargeable devices. The switching unit is connected between the measurement unit and the interfaces. The control unit is connected to the measurement unit and the switching unit, and selectively allows charging of the chargeable devices by controlling the switching unit according to the maximum supply current and the charging currents required.