Abstract: A wire connection structure for vehicle optional part includes a power socket connected to a vehicle power supply, and obtains a power supply for an optional part by cutting in a feeder path supplying electric power to the power socket. In the wire connection structure, a main-side output cord branched from a main harness is preliminarily connected to the back surface side of the power socket by way of couplers. In addition, each optional part harness is provided at an end portion thereof with an option-side output cord and an input cord, which each have a standardized structure. At the time of additionally installing each optional part, the option-side output cord is connected to the power socket, and the main-side output cord or the option-side output cord, which has been detached from the power socket, is bent into a U shape and connected to the input cord.

Abstract: System for converting relatively long pulses from rep-rate variable ultrafast optical sources to shorter, high-energy pulses suitable for sources in high-energy ultrafast lasers. Fibers with positive group velocity dispersion (GVD) and self phase modulation are advantageously employed with the optical sources. These systems take advantage of the need for higher pulse energies at lower repetition rates so that such sources can be cost effective.

Abstract: A distributed resonator laser system using retro-reflecting elements, in which spatially separated retroreflecting elements define respectively a power transmitting and a power receiving unit. The retroreflectors have no point of inversion, so that an incident beam is reflected back along a path essentially coincident with that of the incident beam. This enables the distributed laser to operate with the beams in a co-linear mode, instead of the ring mode described in the prior art. This feature allows the simple inclusion of elements having optical power within the distributed cavity, enabling such functions as focusing/defocusing, increasing the field of view of the system, and changing the Rayleigh length of the beam. The optical system can advantageously be constructed as a pupil imaging system, with the advantage that optical components, such as the gain medium or a photo-voltaic converter, can be positioned at such a pupil without physical limitations.

Abstract: The present invention provides improved laser beam quality with fewer parts than the current method demands and decreasing the transmit aperture, said apparatus comprising: two or more independently pumped gain modules, two or more pump diodes, a polarizing waveplate, non-linear optical crystals, and a passive Q-switch.

Abstract: Methods and systems for current amplification to improve optical amplifier performance may include equalizing a current level indicative of input optical power to an optical amplifier with a current level indicative of an output optical power level of the optical amplifier. In this manner, a first bandwidth of an input log amp may be matched with a second bandwidth of an output log amp in a gain control loop circuit to improve overall transient gain accuracy of the optical amplifier, irrespective of the input optical power. In this manner, the optical amplifier may be enabled to operate at a defined gain level even in the presence of transients in the input signal.

Abstract: The present invention relates to compact, low noise, ultra-short pulse sources based on fiber amplifiers, and various applications thereof. At least one implementation includes an optical amplification system having a fiber laser seed source producing seed pulses at a repetition rate corresponding to the fiber laser cavity round trip time. A nonlinear pulse transformer, comprising a fiber length greater than about 10 m, receives a seed pulse at its input and produces a spectrally broadened output pulse at its output, the output pulse having a spectral bandwidth which is more than 1.5 times a spectral bandwidth of a seed pulse. A fiber power amplifier receives and amplifies spectrally broadened output pulses. A pulse compressor is configured to temporally compress spectrally broadened pulses amplified by said power amplifier. Applications include micro-machining, ophthalmology, molecular desorption or ionization, mass-spectroscopy, and/or laser-based, biological tissue processing.

Abstract: A hand-held therapeutic laser apparatus with a special opto-mechanical construction, which enables changeability of a front collimating lens to create different effective laser apertures. A smaller effective aperture has a comparatively higher radiant flux density for treatment of a small area that requires a higher energy dose, while a larger effective aperture facilitates treatment of a large area at a relatively reduced radiant intensity.

Abstract: A miniature structured light illuminator is provided. The miniature structured light illuminator uses a semiconductor surface emitting array including VCSEL or RC-LED array and an array of microlens elements to generate a wide range of structured light illumination patterns. The emission beam from a surface emitter array may be selectively directed, steered, focused or expanded, by applying a lateral displacement of the microlens array, such that centers of the emission beam and microlens array are misaligned. Emitted beams may be directed through small optical components to project the structured light pattern to a distant plane. The surface emitting arrays may be configured in addressable form to be activated separately for continuous or pulsed operation with very fast pulses having <100 ps risetime. A compact structured light illuminator module with projection optics is provided in very small physical size (˜6×6×3 mm3) suitable to configure in a handheld device.

Abstract: A broad area semiconductor diode laser device includes a multimode high reflector facet, a partial reflector facet spaced from said multimode high reflector facet, and a flared current injection region extending and widening between the multimode high reflector facet and the partial reflector facet, wherein the ratio of a partial reflector facet width to a high reflector facet width is n:1, where n>1. The broad area semiconductor laser device is a flared laser oscillator waveguide delivering improved beam brightness and beam parameter product over conventional straight waveguide configurations.

Abstract: A method of manufacturing a plurality of semiconductor laser elements having; preparing the semiconductor wafer; forming grooves that extend along second lines on a first main surface side of the semiconductor wafer, and forming a first texture pattern along second lines on a bottom surface of the grooves, the second lines being parallel to a cavity length direction; forming a second texture pattern along the second lines by covering at least part of the first texture pattern with a protective film; and splitting the semiconductor wafer along first lines, the first lines being parallel to a cavity width direction, and splitting along the second lines using a second main surface, which is an opposite side of the first main surface, of the semiconductor wafer as an origin.

Abstract: Optical devices having a structured active region configured for selected wavelengths of light emissions are disclosed.

Abstract: The invention relates to a corona ignition device for igniting fuel in an internal combustion engine by means of a corona discharge, comprising a central electrode, an insulator, into which the central electrode plugs, a housing, into which the insulator plugs, a bobbin, onto which a coil which is attached to the central electrode is wound, and a shield cap, which is plugged onto an end portion of the bobbin facing the insulator. According to the invention, a portion of the central electrode protrudes through a bottom of the shield cap, or a circumferential wall of the shield cap has one or more slots, or the shield cap has a circumferential wall, which protrudes only on one side beyond the bottom of the shield cap only on one side.

Abstract: A power supply module includes a circuit board and a heatsink plate. The circuit board includes a first principal surface, a second principal surface, and side surfaces. Electronic components are mounted on the first principal surface. The heatsink plate includes a plate-shaped body portion that faces the first principal surface, and a plurality of fixing portions that extend at an angle from the body portion to face the side surfaces. The fixing portions are configured to come into contact with the second principal surface to secure the body portion to the circuit board.

Abstract: A method and system for installing and removing a row of cables from a cable array is provided. The method includes providing an installation tool having a first body with a plurality of arms extending from one side. The plurality of arms being configured to receive a cable connector body, the plurality of arms including at least one first projection extending from one of the plurality of arms. The installation tool is moved onto a row of cables held coupled together by a bracket, each of the cables in the row of cables having a cable connector body. The connector bodies are engaged into receptacles and the bracket is moved with the at least one first projection.

Abstract: A flexible conduit fitting system includes a housing that defines at least part of a flexible conduit fitting, and a resilient clip supported by the housing. The flexible conduit fitting may include an aperture for receiving an end of a flexible wiring conduit. The resilient clip may have an engagement portion that extends into the aperture of the flexible conduit fitting to engage the generally corrugated outer structure of the flexible wiring conduit. The housing may be configured to support the resilient clip in a manner that allows the resilient clip to flex in a direction of movement of the flexible wiring conduit when the flexible wiring conduit is being inserted into the aperture and past the engagement portion, but to not substantially flex in the direction of movement of the flexible wiring conduit when attempting to withdraw the flexible wiring conduit from the aperture.

Abstract: A shield conductor that shields an electrical wire includes a shield pipe and a metallic braid part that are connected together by a weld along a circumferential direction. The weld may be made by ultrasonic welding. The welding may be direct welding, or welding in which a welding member is melted and then hardened to connect the shield pipe and the metallic braid part together.

Abstract: A cable connector is provided for coupling to and mounted within the internal cavity of an electrical box for securing an electrical cable passing through an opening in the electrical box. The cable connector includes a body having a first end positioned next to or adjacent the cable opening in the electrical box and a second end spaced from the first end and the cable opening. At least one and typically two retaining members are spring biased from the first end of the body and extend into a cable passage of the body toward the second end. A front wall is provided at the second end of the body with an opening for receiving the wires and forming a stop member to prevent the armor sheathing from passing through the front wall.

Abstract: A gangable electrical box includes a U-shaped box member having a generally rectangular back wall including opposed back wall ends. An end wall extends from each of the back wall ends. Each of the end walls has opposed longitudinal edges. The gangable box further includes a pair of generally rectangular side walls where each side wall has opposed side wall ends. The side wall ends are attachable to the U-shaped box member to define an open ended box interior. The longitudinal edges of the end walls and the opposite ends of the side walls include interfitting snap fit connection for toolless attachment of the side walls to the box member.

Abstract: An electronic component includes a main body section having a plurality of surfaces and a terminal portion that is disposed in the main body section and that is fitted to a terminal fitting. A housing member includes a first housing chamber that guides and accommodates the main body section and a second housing chamber that accommodates and holds the terminal fitting. The terminal portion includes a base end and a fitting portion that extends from a protruding tip of the base end and that is fitted to the terminal fitting. The fitting portion extends from the protruding tip of the base end, along a side surface of the main body section with a gap from the side surface, without causing an extending tip to protrude beyond the deep surface.

Abstract: A manifold within an explosion-proof enclosure is described herein. The manifold can include an inlet duct coupled to an air moving device, where the inlet duct can receive exhaust air from the air moving device. The manifold can further include an outlet duct that includes a perimeter and at least one channel, where the outlet duct can send the exhaust air outside the explosion-proof enclosure, where the perimeter of the outlet duct is coupled to a first portion of an inner surface of an outer wall of the explosion-proof enclosure, and where the first portion of the inner surface includes at least one aperture that traverses the outer wall. The manifold can also include a body that includes a cavity, where the body couples the inlet duct to the at least one channel, and where the exhaust air flows from the inlet duct through the cavity to the outlet duct.

Abstract: A floor box cover includes a base plate that engages an electrical device and a cover plate connected to the base plate. The cover plate includes a first opening to expose the electrical device and a second opening to receive a lid. A connector is inserted into an aperture in the lid and engages the cover plate to secure the lid within the second opening, causing the lid to conceal the first opening. A connector gasket engages the connector to prevent the connector from being easily removed from the lid. The connector gasket may be compressed within the aperture to seal the aperture when the connector engages the cover plate. A compressible ring gasket may be friction fit within the second opening, and when the connector engages the cover plate, the lid may compress the ring gasket to seal the second opening.

Abstract: An electrical outlet safety cover consisting of a cover plate removable caps to cover and prevent access by children to underlying electrical outlets. The cover plate replaces a standard electrical cover plate on an electrical outlet and secures to the electrical outlet with an attachment screw. A rear side of the cover plate is provided with slots on each side of each electrical socket access opening into which tabs provided on sides of the child proof safety caps insert as a means of removably securing the caps over the electrical outlets. A tab housing surrounds each slot to prevent the tabs from inserting too far inwardly when inserting or removing the caps from the cover plate. The caps are sufficiently large to cover the attachment screw and to prevent choking by a child.

Abstract: An adjustable mud ring assembly is provided that includes a base plate, a movable ring, and an indexing screw configured to move the movable ring with respect to the base plate between a first position and a second position. The base plate has a junction box connecting portion, a support connecting portion, and a stationary ring. The base plate can have an offset distance (D2) between the junction box connecting portion and the support connecting portion where the offset distance is sufficient to allow the movable ring to move into stationary ring to the first position without protruding, at a lowermost point, into a junction box connected to the junction box connecting portion.

Abstract: Embodiments generally relate to long-distance, 3-phase, AC electricity transmission structures. In one embodiment, the structure comprises an array of beams, the array comprising a sub-array of 3N active beams, wherein N is an integer, one passive beam on the right side of the sub-array of active beams; and one passive beam on the left side of the sub-array of active beams. The centers of the cross-section of each of the active and passive beams lie in a single plane. In another embodiment, the structure comprises an array of 3N metal active beams, wherein N is an integer; and a tunnel of rectangular cross-section with either 90 degree or rounded corners. The array of beams is mounted within the tunnel, and the two side walls of the tunnel are lined with a highly conductive metal having a thickness similar to the thickness of metal used in the active beams.

Abstract: In at least some implementations, a seal for a wire includes a body having at least one opening adapted to receive at least one wire therethrough, and an axially extending engagement surface disposed around at least a portion of each of said at least one openings. The engagement surface has at least a portion that is not parallel to an axis of the opening and is disposed at an acute included angle relative to the axis so that, when the engagement surface is contacted by another component, the size of the adjacent opening tends to be reduced.

Abstract: A method for protecting an intermediate circuit capacitor in a power converter circuit is disclosed. The power converter circuit includes at least two submodules in a series circuit, which draws electrical power from a power source outputting a DC voltage via an inductance, wherein each submodule has, on the input side, a single-phase half bridge and, on the load side, a single-phase full bridge, and wherein the half bridge, the full bridge and an intermediate circuit capacitor are connected in parallel with one another on the DC voltage side. When a fault in one of the submodules is detected, transmission of electrical power from the load-side output of the full bridge of the submodule with the detected fault into the submodule with the detected fault is blocked.

Abstract: A power control device includes an electric power switch and a control unit. The control unit is mounted on an electric device, determines whether the electric device is disposed at a normal use position or an abnormal inclined position, and determines whether the electric device is at a normal use state and is disposed at the normal use position. The control unit controls the electric power switch to provide electric power to the electric device when the electric device is at the normal use state, and to stop providing the electric power to the electric device when the electric device is at the abnormal inclined position.

Abstract: A power conversion system includes a bus bar, a switch coupled to the bus bar and configured to receive a DC input voltage from a voltage source through the bus bar, and a parallel fuse system. The parallel fuse system may be disposed on the bus bar in series with the voltage source and the switch. The parallel fuse system includes two or more parallel fuses, and may be configured for an inductance imbalance between the fuses, such that there is an asymmetric flow of currents through the fuses when the power conversion system is in operation. For the inductance imbalance, for example, the fuses may be positioned asymmetrically with regard to a shortest conductive path from the voltage source to the switch.

Abstract: A device for suppressing high-voltage electricity is connected to a three-phase circuit of an electric generator, including three up arm semiconductor switches, three low arm semiconductor switches, three reverse breakdown diodes respectively connected to the low arm semiconductor switches in parallel, and a control circuit sending PWM signals to turn on and off the low arm semiconductor switches sequentially to evenly share and absorb the energy of surge voltage. Each of the up arm semiconductor switches has a first terminal and a second terminal, wherein the first terminals are electrically connected together, and the second terminals are respectively electrically connected to one of three coils of the three-phase circuit. Each of the low arm semiconductor switches has a first terminal and a second terminal, wherein the first terminals are respectively electrically connected to the second terminals of the up arm semiconductor switches, and the second terminals are electrically connected together.

Abstract: A high-speed input circuit for industrial control provides an optoisolator protected by a series current regulator and shunting voltage regulator. The combined effect of the regulators is to allow the input circuit to work over a wide range of voltages while providing extremely fast response time.

Abstract: An integrated circuit including ESD circuitry that is shared among more than one terminal segment of the integrated circuit to discharge current from an ESD event on any of the terminal segments. The shared ESD circuitry includes a clamp circuit that is coupled to power buses of each segment to discharge current from ESD events on each segment. The shared ESD circuitry includes a trigger circuit that is coupled to nodes coupled to terminals of each segment to detect an ESD event on each segment.

Abstract: An electronic device includes a chassis with a power button and a motherboard. The motherboard includes a slot, a controller chip, a startup circuit coupling to the power button, and a protecting circuit. The protecting circuit includes an electronic switch and an AND gate circuit. The electronic switch includes a first terminal coupled to the slot, a second terminal coupled to a ground, and a third terminal coupled to a first power supply through a first resistor. The AND gate circuit includes a first input end coupled to the first power supply, a second input end coupled to the controller chip, and an output end coupled to the startup circuit. The power button is pressed down, the controller chip outputs a control signal with a high voltage to the second input end of the AND gate circuit.

Abstract: A system is described that turns off a high power, power supply when a device no longer needs high power. A low power, power supply or a rechargeable battery provides power to determine when the device again needs high power. The low power supply consumes a minimum possible power when the device does not need high power and the power rechargeable battery is not charged. That is, the high power and low power, power supplies are turned on or off based on the real time power consumption need of the device and the charged state of the battery. The power need of the device is monitored by a current shunt monitoring circuit and a control signal monitoring circuit.

Abstract: A power supply apparatus includes: a plurality of input ports configured to receive input of electric power from a plurality of power sources, respectively; a charge and discharge circuit configured to receive the input electric power to be charged and discharged so as to generate electric power to be supplied to a load circuit; a switching circuit configured to individually switch connections between the plurality of input ports and the charge and discharge circuit; and a control circuit configured to perform control so as to give different timing of the switch among the input ports.

Abstract: According to another embodiment, a power control apparatus is provided. The power control apparatus includes a grid power inlet configured to receive grid power, a grid power outlet configured to provide grid power, a data transmission input configured to receive low voltage power, and means for actuating a relay to selectively couple the grid power inlet to the grid power outlet in response to receiving the low voltage power from the data transmission input.

Abstract: A load control system for controlling the amount of power delivered from an AC power source to a plurality of electrical load includes a plurality of independent units responsive to a broadcast controller. Each independent unit includes at least one commander and at least one energy controller for controlling at least one of the electrical loads in response to a control signal received from the commander. The independent units are configured and operate independent of each other. The broadcast controller transmits wireless signals to the energy controllers of the independent units. The energy controllers do not respond to control signals received from the commanders of other independent units, but the energy controllers of both independent units respond to the wireless signals transmitted by broadcast controller. The energy controller may operate in different operating modes in response to the wireless signals transmitted by the broadcast controller.

Abstract: The Hybrid Energy System is a business network with utility company headquarters employing several hybrid energy power generating methods which integrate to work together onsite thus producing substantially more energy power onsite-at businesses, factories, buildings and infrastructure, offshore aqueducts, and vessels. The hybrid utility service vehicles recycle, deliver and consigns surplus power. An assortment of unique electric generating devices include; wind turbine array integrated with PV solar panels sited on a tower, an array of hydroelectric turbine valves, and hydro-piezoelectric pipeline systems.

Abstract: A method, apparatus, system and computer program is provided for controlling an electric power system, including implementation of a voltage control and conservation (VCC) system used to optimally control the independent voltage and capacitor banks using a linear optimization methodology to minimize the losses in the EEDCS and the EUS. An energy validation process system (EVP) is provided which is used to document the savings of the VCC and an EPP is used to optimize improvements to the EEDCS for continuously improving the energy losses in the EEDS. The EVP system measures the improvement in the EEDS a result of operating the VCC system in the “ON” state determining the level of energy conservation achieved by the VCC system.

Abstract: For network stabilization of an electric power supply network, the voltage at a first network connection point at a first voltage level to a power generator, and at a second network connection point to a second voltage level, as well as at at least one third network connection point to a load, are each sensed as a voltage measurement, wherein a reactive power draw or a reactive power delivery by the power generator is ascertained using a linkage of the voltage measurements with the geographic location of the relevant network connection point.

Abstract: A utility network powered by a power source has a plurality of substations enabled to power electrical equipment in a participant site. At least one substation is disconnected from the utility network and is to be reconnected via a substation with a power constraint. A processor determines how much power should be shed in a participant site of the substation with the power constraint to allow reconnection of the substation that is disconnected. The processor initiates a Demand Response signal to power consuming equipment in the participant site of the substation with the power constraint to shed power. After shedding power based on the Demand Response signal, the substation that was disconnected is connected to the utility network by closing a switch.

Abstract: A power converter for transmitting a resonance power is provided that includes: an input end that receives a direct current (DC) voltage of a predetermined level; a first power converter that converts the DC voltage of a predetermined level to an alternating current (AC) signal using a first switching pulse signal having substantially the same frequency as a resonant frequency; a second power converter that converts the DC voltage of a predetermined level to an AC signal using a second switching pulse signal having an opposite phase to the first switching pulse signal; a first short circuit that reduces or eliminates an odd harmonic of the AC signal outputted from the first power converter, and provides the AC signal; and a second short circuit that reduces or eliminates an odd harmonic of the AC signal outputted from the second power converter, and provides the AC signal.

Abstract: A system for power transfer is provided. In one exemplary embodiment, the system includes an inductive power device, such as a device that transmits or receives power over an inductive coupling. For example, an adjustable impedance is coupled to the inductive power device, where the adjustable impedance is used for dynamically controlling the power gain in the inductive power device, such as by damping power generated by circuit impedances, such as inductances, capacitances or resistances, and combinations thereof.

Abstract: A power supply apparatus includes a power supply unit that wirelessly supply power to an electronic device, a first communication unit that communicates, based on a first communication method, with the electronic device, a second communication unit that communicates, based on a second communication method that is different from the first communication method, with the electronic device, and a control unit that controls the first communication unit so as to acquire authentication data for a communication between the second communication unit and the electronic device if a remaining capacity of a battery, connected to the electronic device, is equal to or more than a predetermined value.

Abstract: A system for supplying an electric load, in particular for charging a battery device, including a charging station with an accommodation unit for the battery device and a detection unit for the battery device. The detection unit includes a first optical transmitting device for transmitting a first optical signal and an optical receiving device for receiving the first optical signal. The battery device includes a second optical transmitting device for transmitting a second and third optical signal, the second optical transmitting device functioning as a transmitter of a discretely configured optocoupler for transmitting information from the battery device to the charging station. The optical receiving device of the charging station is configured as a receiver of the discretely configured optocoupler for receiving the second and third optical signals.

Abstract: A wireless battery management system includes a computing device and first and second battery unit monitoring modules. The computing device includes an output data request port and an input data port. In response to a data request from the output data request port of the computing device, a first battery unit monitoring module transmits data of the first battery unit to the input data port of the computing device wirelessly and may transmits a data request to the second battery unit monitoring module. In response, the second battery unit monitoring module may transmit data of the second battery unit to the input data port of the computing device wirelessly or transmit data of the second battery to the first module for wireless transmission. In addition, each battery unit monitoring module may communicate wirelessly and independently with the computing device.

Abstract: A charge control circuit includes: a charge/discharge circuit to charge a capacitor when an input current from an input power supply is smaller than a first current, and discharge the capacitor when the input current is greater than the first current; a discharge circuit to discharge the capacitor when the input current becomes greater than a second current greater than the first current; an error amplifier circuit to amplify an error between a lower voltage between a capacitor charging voltage and a reference voltage corresponding to the maximum output voltage, and a feedback voltage corresponding to the output voltage; and a drive circuit to perform switching of a transistor of a booster circuit, including an inductor and the transistor to increase an inductor current, configured to boost the output voltage by supplying the inductor current to the terminal when the transistor is off, so that the error becomes smaller.

Abstract: Disclosed are a voltage measuring apparatus and a battery management system including the same. The voltage measuring apparatus is connected to a plurality of battery cells connected to each other in series to measure respective voltage of the battery cells. The voltage measuring apparatus includes a first node coupled to one of an positive electrode and a negative electrode of one of a plurality of battery cells as a voltage measuring target, amplifies a voltage difference between the first node and the second node to generate an error voltage, converts the error voltage into a digital signal, and compensates for a polarity of the digital signal.

Abstract: Systems, methods, and apparatus for providing a homopolar generator charger with an integral rechargeable battery. A method is provided for converting rotational kinetic energy to electrical energy for charging one or more battery cells. The method can include rotating, by a shaft, a rotor in a magnetic flux field to generate current, wherein the rotor comprises an electrically conductive portion having an inner diameter conductive connection surface and an outer diameter conductive connection surface, and wherein a voltage potential is induced between the inner and outer diameter connection surfaces upon rotation in the magnetic flux field. The method can also include selectively coupling the generated current from the rotating rotor to terminals of the one or more battery cells.

Abstract: A vehicle-mounted charging device includes a charging main body, an external module, an electric wire, and a lighting module. The charging main body includes a circuit board in a first shell, a power plug, and a first shell. A power socket of a vehicle connects to the circuit board. The external module includes a charging plug and a second shell. The charging plug is arranged in the second shell. The charging plug connects to a charging socket of an electronic device to recharge a battery of the electronic device. The electric wire is configured to electrically connect to the charging main body, the external module, and the lighting module to visually indicate the state of charge of the battery of the electronic device.

Abstract: A battery management system includes one or more fiber optic sensors configured to be disposed within an electrochemical battery. Each fiber optic sensor is capable of receiving input light and providing output light that varies based on the input light and an amount of free or dissolved gas present within the battery. A detector detects the output light and generates an electrical detector signal in response to the output light. Battery management circuitry determines the state of the battery based at least in part on the detector signal.