Abstract: A dust scrubber for a mining shearer machine is adapted to be mounted behind the rear surface of the shearer arm, on the opposite side of the arm to the mine surface being cut, so as to extract airborne particulates. The scrubber may be mounted to the shearer via a compensation mechanism such as a double hinge and link arrangement which maintains relatively static position and/or orientation of the scrubber despite the pivoting of the shearer arm in operation.

Abstract: A rim rotor braking system has an integrally formed rotor portion that is orientated at 90 degree to the rim. The rotor is compressed between calipers in a braking system that is attached to a portion of a vehicle such as a bicycle fork. The rotor's orientation maximizes heat transfer to the air and allows the braking system to efficiently stop the vehicle. The brake system may be mounted under the fork or adjacent to it. The rim may be made of aluminum, titanium, steel or any other suitable material. The braking mechanism may be mechanical, hydraulic or electric. In one embodiment, dual rotors are disposed on either side of the rim to provide extra braking power. In yet another embodiment, the rotor is replaceable.

Abstract: Wheel for pedal-assisted bikes includes: a fixed structure associable with the frame of a bike having a driving pedal crank; a circle element mounted on the structure for rotation around a main rotation axis; a propulsion disc rotatably mounted on the structure and connectable to the crank; an electric motor associated with the structure and for cooperating with the propulsion disc to motorize the circle element; and transmission elements for transmitting rotary motion from the disc to the circle element which include a first detection device for detecting the force transmitted to the circle element from the disc, and including: a first plate associated in rotation with one of the disc and the circle element; a second plate associated with the other of the disc and the circle element; at least a motion transmission part between the first plate and second plate.

Abstract: A brake device for a vehicle is provided in which when a slave cylinder generates a brake fluid pressure that is commensurate with the actual amount of operation of a brake pedal by a driver in a state in which a master cut valve is closed and a fluid path connecting a master cylinder to the slave cylinder is cut off, a wheel cylinder is actuated by the brake fluid pressure. Since deterioration determination means determines a leak in the downstream of the slave cylinder based on the actual amount of actuation of the slave cylinder detected by a slave cylinder stroke sensor and the actual brake fluid pressure generated by the slave cylinder and detected by a fluid pressure sensor, it is possible to rapidly determine a leak in the downstream of the slave cylinder.

Abstract: A brake device for a vehicle is provided in which when there is an abnormality in which a slave cylinder becomes incapable of being actuated, a wheel cylinder is actuated by means of a brake fluid pressure generated by a master cylinder, which is actuated by a brake pedal. Since idling detection means detects idling of a motor when the rotational speed of the motor is greater than a reference value that is set according to the stroke of the slave cylinder, it is possible to reliably and rapidly detect idling of the motor. When the idling of the motor is detected, since control means opens a master cut valve and the wheel cylinder is actuated by means of the brake fluid pressure generated by the master cylinder, the slave cylinder, which has become incapable of being actuated, can be backed up rapidly by the master cylinder.

Abstract: The present invention relates to a vehicle brake device which can secure the durability of a linear valve for controlling a servo pressure. The brake ECU of the vehicle brake device sets a reference servo pressure based on the operating amount of a brake pedal when the vehicle is stopped and sets a target servo pressure based on the reference servo pressure during one braking operation. Further, the brake ECU sets the reference servo pressure based on the operating amount of the brake pedal when the servo pressure calculated in response to the operating amount of the brake pedal exceeds the servo pressure change threshold value set with a deviation from the reference servo pressure calculated in response to the brake pedal operating amount.

Abstract: Methods and apparatuses for directly charging capacitors in a down-hole pulsed power system used for electrocrushing drilling. An above ground power supply is directly connected to the capacitors. The power supply can be a switching power supply, a DC supply, or an AC supply. Capacitor voltage is monitored and controlled. The system reduces noise caused by coupling control signal cables and the power cable, and does not have the ground swing control problems of other charging schemes. The power may alternatively be provided by microwave transmission.

Abstract: A vehicular power transmission device includes a power transmission unit which transmits electromagnetic waves to a mobile device to transmit power to a power reception unit of the mobile device, and a frequency changing unit which, when it is determined based on the transmission frequency of the electromagnetic waves to be transmitted from the power transmission unit to the mobile device and a reception frequency of a radio receiver that radio noise is generated by the power transmission unit, changes the transmission frequency of the electromagnetic waves of the power transmission unit, wherein the power transmission unit changes a transmission power of the electromagnetic waves based on an amount of change in the transmission frequency of the electromagnetic waves changed by the frequency changing unit.

Abstract: Provided is a ground fault detecting device 10 having a ground fault detection part 64 which detects a ground fault of an ungrounded circuit 70 based on a ground fault detection signal St_s of a ground fault signal detection circuit 53 when detection signals S_sig are superimposed on a positive side output part PL and a negative side output part ML by an inverting amplifier 25 connected to the positive side output part PL and an inverting amplifier 35 connected to the negative side output part ML, and having a power supply voltage detection part 66 which detects output voltage of a lithium-ion battery 71 based on a first power supply voltage detection signal Vd1_s of a first power supply voltage detection circuit 52.

Abstract: A three-phase induction machine with a starting winding and a running winding and a winding change-over switch which switches over a flow of current between the starting winding and the running winding, wherein a phase of the phases of the starting winding and a corresponding phase of the phases of the running winding of the three-phase induction machine are supplied with electrical energy by a common electrical supply line, and wherein one phase of the phases of the starting winding and the corresponding phase of the phases of the running winding are electrically interconnected by an electrically conductive connection in the three-phase induction machine. Also provided is a method for operating a three-phase induction machine as well as an aircraft or spacecraft which has a corresponding three-phase induction machine.

Abstract: A generation method performed by a generator module of an electricity network of an aircraft, the electricity network including a power supply line powered by the generator module, a DC bus powered from the power supply line via a rectifier, and at least one electrical actuator powered with AC from the DC bus via an inverter. The generation method includes: delivering an AC voltage as a function of a voltage setpoint and of a voltage measured in the on-board network; and determining the voltage setpoint as a function of an operating parameter of the actuator.

Abstract: An apparatus inductively transmits electrical energy from a primary coil, which is arranged in a stationary unit, to a secondary coil, which is arranged in a vehicle. The primary coil and/or the secondary coil have or has at least one switchable coil tap for adjusting a coil length which is active for the inductive energy transmission.

Abstract: There are provided an electric power feed apparatus, an electric power feed system, and an electronic apparatus which are capable of performing transmission efficiency control corresponding to positions of apparatuses when electric power transmission is performed between the apparatuses through a magnetic field. The electric power feed apparatus includes an electric power transmission section including an electric power transmission coil for performing electric power transmission through a magnetic field and an auxiliary resonance section including one or a plurality of resonators. A main resonant frequency in a main resonance operation with use of the electric power transmission coil during the electric power transmission and an auxiliary resonant frequency in the resonator are different from each other.

Abstract: System and method for regulating voltage in a distribution network including at least one power transformer (11), distribution lines (12), switches (14, 15) and distribution transformers (13). The system and method utilize measuring means (22) arranged at the secondary side (19) of at least one chosen distribution transformer (13) for reading voltage, which voltage in turn is used for controlling the power transformer (11) so that desired voltage at the secondary side (19) of the chosen distribution transformer(s) (13) is/are achieved.

Abstract: A method can include receiving a potential value of a negative electrode of a lithium-ion cell and, for a cell charging process for the lithium-ion cell, adjusting a constant voltage phase voltage based at least in part on the potential value of the negative electrode. Various other apparatuses, systems, methods, etc., are also disclosed.

Abstract: An electrical system and method include a DC link, a controlled rectifier connected between the DC link and a power source, an energy storage, a DC to DC converter connected between the DC link and the energy storage, a motor, and a DC to AC converter connected between the DC link and the motor. The converters are configured to transfer power in both directions. The rectifier controls the DC voltage of the DC link when the DC link voltage is in a first voltage range. The DC to DC converter controls the DC voltage of the DC link by charging the energy storage when the DC link voltage is in a second voltage range, which has higher voltage values than the first voltage range, or by discharging the energy storage when the DC link voltage is in a third voltage range, which has lower voltages than the first voltage range.

Abstract: A power management system has power supplying means, measuring means that measures power generation environment for the power supplying means, and communication means that transmits information measured by the measuring means. The power management system comprises: a control unit that controls the measuring means and the communication means. The power supplying means is used as a power source for the measuring means and the communication means. The control unit sets a first power threshold to be used for determining whether or not to switch operation states of the measuring means and a second power threshold to be used for determining whether or not to switch operation states of the communication means on the basis of a power supply that is supplied from the power supplying means.

Abstract: A number of load units are connected to receive power from a number of power supply units. A potential load bus is connected to have a voltage level representative of both a total potential power requirement of the number of load units and a total potential power supply capability of the number of power supply units. A first control circuit enables operation of the number of load units when the voltage level on the potential load bus indicates that a sufficient supply of power is available. An actual load bus is connected to have a voltage level representative of both an actual total power consumption of the number of load units and an actual total power supply available from of the number of power supply units. A second control circuit signals an impending loss of sufficient power supply based on the monitored voltage level on the actual load bus.

Abstract: A sodium-sulfur battery belongs to each of a plurality of operation units. A first power consuming body and a second power consuming body are electrically connected to the grid. The first power consuming body belongs to each of the plurality of operation units, and the second power consuming body does not belong to the operation unit. One of the first power consuming body and the second power consuming body may be omitted. Rank is given to each of the plurality of operation units. The ranks become higher as the remaining capacity of the sodium-sulfur batteries belonging to the operation unit becomes greater. When the stand-alone operation is started, one operation unit of the highest rank is selected, and the sodium-sulfur battery belonging to the operated operation unit is paralleled in to the grid.

Abstract: In a switching power supply apparatus, a main switching control circuit performs switching control of a low-side switch device and a high-side switch device based on a feedback signal corresponding to a main output voltage output from a secondary winding of a transformer, and applies and stops applying a voltage to a primary winding of the transformer. A digital signal processor, in accordance with the load status of the main load, changes set target values, performs switching control of switch devices of the sub-rectifying and smoothing circuits, and drives sub-loads.

Abstract: A voltage control and conservation (VCC) system is provided, which includes three subsystems, including an energy delivery (ED) system, an energy control (EC) system and an energy regulation (ER) system. The VCC system is configured to monitor energy usage at the ED system and determine one or more energy delivery parameters at the EC system. The EC system may then provide the one or more energy delivery parameters to the ER system to adjust the energy delivered to a plurality of users for maximum energy conservation.

Abstract: A current collection box includes: a number of terminals enabling the connecting of at least two solar cell strings including a plurality of solar cells are connected in series; a booster for boosting individual voltages of the generated power of each of the solar cell strings inputted via the terminals; and an output circuit for collecting all of the outputs of the booster together into a single output and then outputting the single output, wherein each of the boosters starts MPPT operation, which operates so that the output power of the solar cells is controlled so as to reach a maximum value, with different periods.

Abstract: A power supply switching circuit includes a switching circuit that electrically connects a VCC terminal and a VBK terminal in a connected state, a switch control circuit, and a power supply monitoring circuit that monitors a voltage of the VCC terminal, and outputs a voltage of the VBK terminal. The switch control circuit switches a mode from a normal mode in which the switching circuit is intermittently connected to a standby mode in which the switching circuit is opened according to an output signal of the power supply monitoring circuit.

Abstract: An energy storage control system and method is disclosed. The energy storage control system can include a controller, a circuit defining a plurality of electrical current paths between an input and an output, and a first energy storage device and a second energy storage device electrically coupled in series to one another between the input and output. The control system can also include a first switch device electrically coupled in parallel to the first energy storage device and a second switch device electrically coupled in parallel to the second energy storage device. The controller can be in electrical communication with the first energy storage device and the second energy storage device. The first switch device and second switch device can be operably controlled by the controller.

Abstract: In the present invention, first boosting circuits (41a to 41d) are interposed upon each of direct current power lines (La to Ld). The boosting ratios of the first boosting circuits (41a to 41d), for each iteration of a first cycle, are variably controlled during a first period so that the generated power of the corresponding solar cell strings (1a to 1d) is maximized, and the boosting ratios during a second period are controlled so as to be maintained at a uniform value. The total amount of time of the first period and the second period is made to correspond to the first cycle.

Abstract: Embodiments related to the conversion of DC power to AC power are disclosed. For example, one disclosed embodiment provides a power conversion system, comprising a plurality of direct current (DC) power sources, a plurality of power output circuits connected to one another in a parallel arrangement, each power output circuit being connected to a corresponding DC power source to receive power from the corresponding DC power source and to selectively discharge power received from the corresponding DC power source, a power combiner configured to combine power received from the plurality of power output circuits to form a combined power signal, an output stage configured to convert the combined power signal into an AC signal or a DC signal, and a controller in electrical communication with each power outlet circuit and the power combiner to control the output of power by the power converter.

Abstract: A power distribution system is described that does not rely on a fixed frequency and which therefore allows prime movers to run at different speeds in response to load demand, typically so that fuel consumption and/or harmful exhaust emissions is/are minimised. A marine power distribution and propulsion system can include an ac busbar adapted to carry a variable-frequency ac distribution voltage. A plurality of ac generators are connected to the busbar, each having an associated prime mover such as a diesel engine, turbine etc. A power management controller is adapted to vary the rotational speed of the prime movers with reference to the electrical load on the ac busbar such that the generators provide a variable frequency output during normal operation of the power distribution system. Such operation is to be contrasted with conventional distribution systems which have a fixed frequency.

Abstract: An apparatus comprises a structure including a cavity that, when excited with electromagnetic energy, produces an electric field having randomized distribution of field amplitude and polarity. The apparatus further comprises a sensor within the cavity. The sensor has a plurality of antennas for wirelessly harvesting operating power along different paths within the cavity.

Abstract: A system for controlling wireless power transfer to mobile devices is disclosed. The system includes a power transmitter configured to transmit power via a wireless coupling to the mobile devices. Each of the mobile devices includes a power receiver configured to receive the power from the power transmitter via the wireless coupling with the power transmitter. Each power receiver is configured to transmit control data modulated with a spreading code via the wireless coupling to the power transmitter.

Abstract: An intelligent node (51) is provided for an inductive power transfer system which allows communication between a system power supply (1) and pick-up (3) and facilitates authentication of system components. The node (51) can also control operation of a pick-up (3).

Abstract: The present invention may provide various electric receiver arrangements which may be used to provide wireless power transmission using suitable power transmission techniques such as pocket-forming. In some embodiments, receivers may include at least one antenna connected to at least one rectifier and one power converter. In other embodiments, receivers including a plurality of antennas, a plurality of rectifiers or a plurality of power converters may be provided. In addition, receivers may include communications components which may allow for communication to various electronic equipment including transmitters, phones, computers and others. Lastly, various implementation arrangements may be provided for including receivers in electronic devices.

Abstract: The present invention describes a methodology for wireless power transmission based on pocket-forming. This methodology may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power. Both devices, the transmitter and receiver, may communicate to each other via a wireless protocol. By communicating to each other, the transmitter may identify and locate the device to which the receiver is connected and thereafter aim pockets of energy to the device in order to power it.

Abstract: There is provided a power management device including a storage unit configured to hold a correspondence relationship between first identification information held by a power supply target and second identification information held by a user in advance, and a power management unit configured to issue a power supply instruction to a power supply device that supplies power to the power supply target based on the correspondence relationship between the first identification information and the second identification information.

Abstract: This wireless power transmission system includes: a power transmitting antenna and a power receiving antenna arranged to face each other and not to be in contact with each other; and an electromagnetic shield structure that includes a first shield and a second shield to house, in its inner space, the power transmitting and power receiving antennas facing each other. The first and second shields are configured to make first and second spaces to house the power transmitting and power receiving antennas, respectively. At least one of the first and second shields includes a protruding portion that is parallel to at least one of the power transmitting and power receiving antennas and that protrudes out of the shield sidewalls. Power is transmitted by a non-contact method through a radio frequency magnetic field from the power transmitting antenna to the power receiving antenna.

Abstract: This building includes a power supply coil of a contactless power supply system using magnetic resonance type. Then, a construction method for this building includes steps of: linking a plurality of building members to each other respectively provided with split wires into which a power supply coil forming a loop as a whole is split at a plurality of locations along an extending direction of the power supply coil, so as to surround an indoor space; and forming the power supply coil surrounding the indoor space by electrically connecting the respective split wires to each other.

Abstract: A pin-less power coupling arrangement comprising at least one pin-less power jack; the power jack comprising a primary coil shielded behind an insulating layer for inductive coupling to a pin-less power plug; said power plug comprising a secondary coil wherein said insulating layer is substantially flat and said power plug and said power jack may be aligned by an alignment means. Various such alignment means are discussed as are enabled surfaces for supporting inductive power jacks and inductive plugs coupled to various appliances.

Abstract: A method of operating an inverter including the steps of detecting the temperature of the at least one electrolytic capacitor; selecting at least one of a plurality of switching patterns based on the temperature of the at least one electrolytic capacitor; and generating a ripple current across the at least one electrolytic capacitor by operating the inverter from the at least one of the plurality of switching patterns for preheating of the at least one electrolytic capacitor.

Abstract: Pressure sensing systems comprising bulk-solidifying amorphous alloys and pressure-sensitive switches containing bulk-solidifying amorphous alloys. The bulk-solidifying amorphous alloys are capable of repeated deformation upon application of pressure, and change their electrical resistivity upon deformation, thereby enabling measurement of the change in resistivity and consequently, measuring the deformation and amount of pressure applied.

Abstract: A current conveyor circuit, which comprises: a first current transmitting route; a second current transmitting route, which has the same devices as the first current transmitting route; and at least one control circuit, to control the first current transmitting route and the second current transmitting route to enter a normal mode or a current splitting mode, wherein the first current transmitting route and the second current transmitting route are both enabled and can transmit current in the normal mode, where the first current transmitting route is enabled to transmit current but the second current transmitting route is disabled thus can not transmit current in the current splitting mode.

Abstract: Various aspects of the present disclosure are directed toward methods and apparatus that include a lead frame with a fixed external pin pitch. A differential signal path is provided that is characterized by bond-pad pitch range, wire length and wire diameter. The differential signal path carries signals in a frequency range between 5 GHz and 16.1 GHz with less than about 25 dB differential return loss (DDRL). Further, the signals are processed at a signal-processing node that is electrically coupled to the differential signal path by using the differential signal path to carry signals in a frequency range between 5 GHz and about 16.1 GHz.

Abstract: A piezoelectric transformer includes capacitance elements, an inductance element, a resistance, and an ideal transformer. A first resonance circuit includes the piezoelectric transformer, the capacitance of a capacitance element of a coupling electrode of a power receiving apparatus, and the capacitance of a capacitance element of a coupling electrode of a power transmitting apparatus. On the other hand, a second resonance circuit includes an equivalent output capacitance of the piezoelectric transformer and an inductance element. The frequency of a high-frequency high voltage that is generated by a high-frequency high-voltage generating circuit is set to a value between two resonance frequencies generated by a complex resonance of the first resonance circuit and the second resonance circuit.

Abstract: Various embodiments enable the operation of fuel cell system support equipment using variable frequency drives and power from fuel cells and/or grid power sources.

Abstract: An electromagnetic field shielding device not only protects the lap of the user, but also their hands and face. The EMF shield has an EMF shield for the bottom of the laptop as well as a flexible, see-through, type-through EMF shield that extends over the screen and keyboard. The EMF shield of the present invention shields all areas of the laptop and protects the user from EMF radiation from laptops in the x, y and z axes, not merely a downward axis from the bottom of the laptop.

Abstract: A haptic actuator (20(X)) provides compact mounting for a haptically-actuated assembly by mounting at least a portion of the haptically-actuated assembly to magnetic circuit members of the haptic actuator. The haptic actuator comprises a first magnetic member (62); a second magnetic member (60); a field generator (30); and a resilient connector (70). The first magnetic member (62) is configured to have a driven part (124) of the haptically-actuated assembly mounted to the first magnetic member (62). The second magnetic member (60) is selectively separated by at least one air gap from the first magnetic member (62) and is configured to have a stationary part of the haptically-actuated assembly (122) connected to the second magnetic member (62). The second magnetic member (60) is positioned at least partially within the field generator (30) and the first magnetic member (62) is positioned externally to the field generator (30).

Abstract: Disclosed is a voice coil motor, the motor including a mover having a bobbin equipped with a lens and a coil block secured to an outer circumference of the bobbin; a stator having a magnet that is disposed in such a way as to face the coil block; elastic members coupled to a lower end of the bobbin and connected to both ends of the coil block; a base supporting the elastic members and the stator; and a cover can covering the mover, the stator and the base, with an opening being formed in the cover can to expose the lens therethrough, wherein each of the elastic members includes a terminal portion that extends between the cover can and a side surface of the base, the terminal portion including a short-circuit prevention portion so as to inhibit a short-circuit between the terminal portion and the cover can.

Abstract: A device generates electrical energy from mechanical motion in a downhole environment. The device includes a magnetostrictive element and an electrically conductive coil. The magnetostrictive element has a first end and a second end. The first and second ends are coupled between two connectors. The magnetostrictive element is configured to experience axial strain in response to radial movement of at least one of the connectors relative to the other connector. The electrically conductive coil is disposed in proximity to the magnetostrictive element. The coil is configured to generate an electrical current in response to a change in flux density of the magnetostrictive element.

Abstract: An multi-function vibrating device is disclosed. The multi-function vibrating device providing sound producing and vibration functions includes a holder having a hollow space, a suspension divided into at least two parts, a vibration member suspended by the suspension and having at least a pair of receiving concaves for fixing the corresponding two parts of the suspension. The multi-function vibrating device has larger vibrating amplitude and small size.

Abstract: An axial gap rotating-electric machine includes a stator, a rotor arranged via an air gap in the direction of an axis of rotation of a rotating-electric machine with respect to the stator, and a housing configured to accommodate the stator and the rotor, and the stator includes a plurality of stator cores arranged in the circumferential direction, coils configured to wind the peripheries of the respective stator cores, and a resin for molding the plurality of stator cores wound with the coils, and the stator cores each include a protruding portion protruding partly from the coil in the direction of axis of rotation, and a conductive member is provided so as to come into contact with peripheral surfaces of the protruding portions of the stator cores, and grounding is achieved by the conductive member.

Abstract: Various embodiments of the disclosure include a dynamoelectric machine support system. In some embodiments, a support system for a dynamoelectric machine is disclosed, the support system having: a housing; a skeletal frame attached to the housing and at least partially contained within the housing; and at least one adjustment mechanism for applying a force to the skeletal frame to modify a stiffness of the skeletal frame.

Abstract: Engaging protrusions of a lower end housing are axially snap-fitted into through holes, respectively, of a yoke housing to couple therebetween. Each of spacers is circumferentially placed between and is press-fitted between corresponding adjacent two of permanent magnets fixed to an inner peripheral surface of the yoke housing. Each spacer axially contacts a corresponding contact part of the end housing. A lower ball bearing and an upper ball bearing are supported by the lower end housing and an upper end housing, respectively, to rotatably support a shaft. A wave washer is axially positioned between the lower ball bearing and the lower end housing to exert an urging force between the lower end housing and the upper end housing through the shaft.