Abstract: An electrical grid, using physical operating data of the electrical grid a current operating status of the electrical grid is determined by way of a network model of the electrical grid is provided. A first grid component is controlled as a function of a control signal by a regulator with a grid-component-internal control circuit which is adjustable via control parameters. A first component model of the first grid component is imported to determine a dynamic reaction of the first grid component to the control signal depending on the control parameters.

Abstract: Embodiments disclosed herein describe systems and methods for electrical power connectors where power is transferred through electromagnetic induction. Embodiments may lead to a safer form of power transmission that may save lives and dollars every year.

Abstract: A wireless power receiver includes circuitry configured to receive a wirelessly induced voltage from a wireless power transmitter via a magnetically induced connection with the wireless power transmitter. It is determined that an overvoltage condition exists when the wirelessly induced voltage exceeds a threshold voltage, and the wirelessly induced voltage is reduced in response to determining that the overvoltage condition exists. The circuitry communicates the overvoltage condition to the wireless power transmitter via the magnetically induced connection while over-voltage protection is enabled.

Abstract: The present disclosure provides systems and methods for controlling wireless power transfer systems. A wireless power transfer system includes a transmitter driven by a power source and a transmit controller, wherein the transmitter is configured to control delivery of wireless power, and a receiver inductively coupled to the transmitter, the receiver configured to receive the wireless power from the transmitter and deliver the received wireless power to a load. The receiver includes receiver electronics configured to determine a Thevenin equivalent impedance of the wireless power transfer system, determine a Thevenin equivalent source voltage of the wireless power transfer system, and control, based on the determined Thevenin equivalent impedance and the determined Thevenin equivalent source voltage, an ideal source voltage of the receiver to vary the amount of the wireless power transferred from the transmitter to the receiver.

Abstract: A wireless power transmitter for transmitting a power signal to a wireless power receiver is disclosed. The transmitter includes a transmission antenna, an inverter circuit including a plurality of switches; and a control circuit configured to demodulate a control signal received by the transmission antenna from the transmitter and control the inverter circuit based on power control data included in the control signal. The control circuit is configured to select among a first, second and third mode. For example, in the first mode in which a first pair including first and second switches and a second pair including third and fourth switches are both complementarily switched at a duty ratio of 50%, and a phase difference of the first pair and the second pair is changed between a minimum value and a maximum value depending on a transmission power, and the inverter circuit performs a full-bridge operation.

Abstract: The invention provides a power supplying device, which includes a first coil; and a second coil, which is wound to be substantially line symmetrical to the first coil with respect to a center line, wherein the center line is an axis passing through a winding center of the first coil. A ground point of the first coil and the second coil is disposed further inside than an outermost winding of the first coil.

Abstract: A power charging system is provided. The power charging system may have an information processing apparatus having a first communication unit and a power receiving unit, and an external apparatus having a second communication unit and a power transmission unit. The second communication unit may be configured to wirelessly communicate with the first communication unit using a first carrier wave having a first frequency and the power transmission unit may be configured to wirelessly transmit power to the power receiving unit using a second carrier wave having a second frequency, the second frequency being different from the first frequency.

Abstract: A wireless power system including a power supply device configured to generate AC power; a transmitter configured to transmit the AC power generated by the power supply device; and a receiver configured to receive the AC power.

Abstract: The disclosed technology relates to antenna configurations for wireless power transmission and supplemental visual signals. In some implementations, the disclosed technology includes a wireless power transmitter with boards that have multiple antennas physically coupled to the board. In some implementations, the antennas boards are arranged in a polygonal configuration (e.g., star shape). Additionally, in some implementations, the antennas can have different polarization configurations.

Abstract: The BLDC motor includes a stator, and a rotor disposed inside of the stator and including a plurality of permanent magnet parts, each of the permanent magnet parts including first and second permanent magnets which are disposed to have an interval therebetween. The rotor includes a slot part including a first portion into which the first permanent magnet is inserted, a second portion into which the second permanent magnet is inserted, and a third portion connecting the first and second portions to each other. The first and second portions have one end portions which are spaced apart from each other by a first distance and other end portions which are spaced apart from each other by a second distance which is shorter than the first distance, and the third portion connects the other end portions of the first and second portions to each other.

Abstract: A rotary electric machine comprises a rotor core and a plurality of permanent magnets embedded in the rotor core along a circumferential direction of the rotor core. The rotor core includes a magnetic pole portion disposed between two permanent magnets adjoining along the circumferential direction of the rotor core.

Abstract: An electric conductor is provided for forming a coil upon being bent. The electric conductor includes a pair of electric conductor wires and an insulating coat. The electric conductor wires each have a substantially rectangular cross section and are arranged in alignment with each other in an alignment direction. The alignment direction is perpendicular to corresponding sides of the substantially rectangular cross sections of the electric conductor wires; the corresponding sides have the same length. The insulating coat is formed on outer peripheral surfaces of the electric conductor wires. The insulating coat has a thick portion formed at a boundary between the electric conductor wires. The thick portion is thicker than and protrudes outward from other portions of the insulating coat which adjoin the thick portion in a circumferential direction of the electric conductor.

Abstract: A stator of an electric motor is provided. The stator includes a plurality of segments, each of the segments including a tooth having a magnetically-permeable material, an electric coil surrounding the tooth, and at least one insulator. The stator also includes a plurality of connectors, each connector including first and second terminals, the first terminal adapted to be inserted into the at least one insulator and to couple to the electric coil of each of the plurality of segments and a circuit board coupled to input power lines and including apertures adapted to receive the second terminals of the plurality of connectors. The circuit board is coupled to the electric coils of each of the plurality of segments via when the second terminals are received in the apertures.

Abstract: A stator for a motor that includes an armature coil that generates an N-pole and an S-pole by applying a current and forty-eight slots radially formed at which the coil is disposed and in which the armature coil alternately implements N-poles and S-poles by arranging six slots as a single unit as the current is applied to the coil. The slot includes a plurality of phase drawing out slots, and when the order of the phase drawing out slots is determined in a clockwise direction by setting one phase drawing out slot as a first phase drawing out slot, at least two methods of winding the armature coil to turn around the slot may be used to decrease a distance from the first phase drawing out slot to the last phase drawing out slot to a minimum value by setting a cell between neighboring slots as a unit.

Abstract: An electric machine includes a stator having a stator core, rotor core and/or magnetic core comprising a plurality of slots. Each of the plurality of slots includes a spacer, a conductor, and encapsulated slot insulation. The spacer is configured to suspend the conductor away from the stator core by a dielectric distance without occupying all of the space between the conductor and the stator core. The encapsulated slot insulation includes an encapsulation material configured to flow in a liquid state around the perimeter of the conductor filling in the space between the conductor and the stator core. The encapsulation material cures to hold the spacer and the conductor in place. The encapsulated material typically has higher thermal conductivity properties than a conventional slot liner, increasing the performance of the motor.

Abstract: A rotary machine, e.g., a synchronous machine, may include cold superconducting windings arranged in a warm soft-magnetic rotor body. Two adjacent windings may be arranged between every two adjacent soft-magnetic pole bodies and fastened by support elements in a common pair of vacuum containers in order to achieve thermal insulation. The two windings may be isothermally interconnected at their mutually facing sides by at least one common support and/or traction element.

Abstract: An electric power converter (10) is divided into a main casing (10a) and an auxiliary casing (10b). The main casing (10a) contains a high-voltage circuit (28, 29) through which electric power for driving a motor (83) flows. The auxiliary casing (10b) contains a control circuit (19) configured to control the high-voltage circuit. The auxiliary casing (10b) is connected to the main casing (10a) by a cable (23). The main casing (10a) and the auxiliary casing (10b) are accommodated in a front compartment (2) of a vehicle together with a motor case (3) that accommodates the motor. The main casing (10a) is fixedly mounted on the motor case (3). The auxiliary casing (10b) is arranged so as to be adjacent to the main casing (10a) and is fixed to a body of the vehicle.

Abstract: A drive device includes a shaft rotatably supported by a first bearing and a second bearing. The first bearing is disposed in a shaft hole of an output frame end. The second bearing is disposed in a bearing box of an opposite-to-output frame end. An oil seal is fixed in the shaft hole and is closer to an output end than the first bearing is, and is in sliding contact with an outer circumference of the shaft. A biasing member is housed in the bearing box and biases an outer race of the second bearing toward the output end. Accordingly, a deflection amount and a bend amount of the shaft at the location where the oil seal is disposed may be reduced.

Abstract: A fixture for fixing, to a motor case, a holding jig configured to hold a plurality of power lines connected to respective stator coils so as to restrict a relative movement between the plurality of power lines includes: a fastening hole through which a bolt for fastening the fixture to a motor case is inserted; and a mounting portion on which the holding jig holding the power lines is mountable. The mounting portion includes: an accommodation space in which to accommodate the holding jig; and holding pawls for sandwiching the holding jig.

Abstract: A motor includes a stator and a rotor coupled via the center hub of the rotor. The stator includes a support ring, the support ring comprising a plurality of windings arranged circumferentially. The rotor is configured to operate as a rotating propeller and includes a center hub, a rotor support ring, and a plurality of blades. The rotor support ring comprises a plurality of magnetic poles arranged circumferentially. Each particular blade is individually coupled to the rotor support ring.

Abstract: Processes used in the past were hazardous due to the material with which they were constructed, the design, and the location of the flywheel used on the device. In addition, the energy was inefficiently drawn from the flywheel which caused them to be replaced by fuel driven engines which emitted CO/2 and other greenhouse gases. My invention will create kinetic energy with zero greenhouse gases and all safety issues are remedied by high grade materials and new safety specifications. My invention is to turn a flywheel containing more kinetic energy than required by an electrical generator to produce power. The flywheel will be driven by an external energy source and, by overcoming the required kinetic energy of the electrical generator with the kinetic energy of the flywheel spinning at a high R.P.M., it will create kinetic energy.

Abstract: An electrodynamic machine is disclosed that includes a magnetic field generator and an armature in a linear moving relationship with each other along a first axis. A swash plate rotates about a second axis parallel to and offset from the first axis. The swash plate comprises a surface in slidable engagement with an end of the magnetic field generator or an end of the armature. This swash plate surface is at a controllably variable angle to the second axis, and provides provides a linear displacement between the magnetic field generator and the armature in response to rotation of the swash plate.

Abstract: An axial flux magnetic geared machine includes a high speed magnetic rotor and a low speed magnetic rotor maintained in a spaced relationship from the high speed magnetic rotor. A modulating structure is disposed between the high speed magnetic rotor and the low speed magnetic rotor. A stator is disposed in a radially central bore of one or more of the high speed magnetic rotor, the low speed magnetic rotor, and the modulating structure.

Abstract: Providing mobile electric power comprising a power generation transport configured to convert hydrocarbon fuel to electricity and an inlet and exhaust transport configured to: couple to at least one side of the power generation transport such that the inlet and exhaust transport is not connected to a top side of the power generation transport, provide ventilation air and combustion air to the power generation transport, collect exhaust air from the power generation transport, and filter the exhaust air.

Abstract: A motor structure includes a housing, a cover, an air collecting structure fixed to the cover, an air guiding shell mounted around the housing and the air collecting structure, and a cooling fan. The cover defines a plurality of inlet holes. The air collecting structure defines a plurality of through holes aligned with the inlet holes of the cover, so as to provide a path for allowing one portion of the air current generated by the cooling fan to enter the housing. The housing defines a plurality of inlet holes and a plurality of outlet holes. One portion of the air guiding shell is located above the inlet holes of the housing to form another path for allowing another portion of the air current to enter the housing.

Abstract: Provided is an improved shaft seal and/or modifications of the outer housing, an air-cooled generator can be modified in such a way that it can be operated at an overpressure and a higher power output can be achieved. Disclosed is a first embodiment of the invention for increasing gas pressure in a generator through use of shaft seals; a second embodiment of the invention for increasing gas pressure in a generator through use of reinforcing elements; and a third embodiment of the invention for increasing gas pressure in a generator through use of outer housing thickness.

Abstract: The electric compressor includes a housing having electrical conductivity, an inverter, a cover having electrical conductivity, a sealing portion, and a shielding portion having electrical conductivity. The cover is attached to the housing, thereby defining an accommodating space in which the inverter is accommodated. The sealing portion has a main body portion made of resin and a metal portion having electrical conductivity. The sealing portion is provided in a gap between the housing and the cover. The shielding portion is joined to the metal portion and electrically grounded. The metal portion is provided in the accommodating space, and has an outer circumferential edge embedded in the main body portion. The shielding portion is arranged so as to face a third surface of the main body portion and so as to extend from the metal portion toward at least one of the first surface and the second surface.

Abstract: A noise suppression circuit for use with a noise source connected to ground may include a first capacitor having a first terminal and a second terminal, the first terminal of the first capacitor being connected to the noise source; and a first impedance element having a first terminal and a second terminal, the first terminal of the first impedance element being connected to the second terminal of the first capacitor and the second terminal of the first impedance element being connected to the ground.

Abstract: A rotary device having a brush that includes a slide-contact portion, a fixing section, and a conductive bonding material. The conductive bonding material bonds together the slide-contact portion and the fixing section. The conductive bonding material is composed of an intermetallic compound phase that is an alloy containing one of (1) at least two selected from a first group consisting of Sn, Cu and Ni, and (2) at least two selected from a second group consisting of Su, Cu, and Mn.

Abstract: An electric motor includes: brushes (31) that are brought into sliding contact with a commutator of an armature that is fixed to a rotation shaft and feeds electric power; a brush holder stay (33) that supports the brushes (31) via brush holders (41); noise prevention elements (110) that are electrically connected to the brushes (31); and terminals (130) and jump wires (141) that electrically connect between the brush holders (41) and the noise prevention elements (110), wherein first connection portions, which connect between the noise prevention elements (110) and the terminals (130), and second connection portions, which connect between the terminals (130) and the jump wires (141), are both disposed only on a first surface (S1) of the brush holder stay (33).

Abstract: The present application provides a combined stator wedge driver and bar jacking tool for positioning a stator bar and a stator wedge into place along a slot of a stator core. The combined stator wedge driver and bar jacking tool may include a bar jacking tool to drive the stator bar into the slot and a stator wedge driver to drive the stator wedge on top of the stator bar in the slot. The bar jacking tool and the stator wedge driver extend from a common housing.

Abstract: In a stator, segment coils each consisting of a pair of straight portions connected with a connecting portion in a U-like shape are set in slots of a stator core. Each straight portion has distal end parts protruding on an opposite side to the connecting portions.

Abstract: A hybrid dual-rotor motor structure is provided, which may include a stator, a first rotor, a second rotor, a first coil, and a second coil. The stator may include a plurality of stator teeth. The first rotor, the second rotor, and the stator may arranged in the radial direction of the hybrid dual-rotor motor structure. The first coil may be wound on the stator teeth. The second coil may be wound on the stator teeth; the second coil may include a plurality of sub-coil sets; each of the sub-coil sets may include a plurality of sub-coils connected to each other/one another in series or in parallel; the pole-pair number of the second coil may be the integral multiple of the pole-pair number of the first coil.

Abstract: An electric motor is provided. The electric motor includes a hollow-shaped stator configured to have a teeth part protruding on an inner surface thereof, and a rotor configured to be inserted into the hollow-shaped rotor, and including an outer surface facing the teeth part, and a plurality of poles therein. The rotor includes a bridge part disposed between poles and has a front rotor groove and a back rotor groove that are each dented at a front and a back of the bridge part with respect to a rotating direction of the rotor.

Abstract: A method is disclosed for generating and distributing electric power for localized use. The method entails providing an enclosed building having an air conditioning and ventilation unit for supplying cooled air within the building, the unit including a closed loop circuit configured to operate a closed loop refrigeration cycle, including a compressor operable to compress a working fluid of the closed loop circuit. The method further includes engaging an internal combustion engine with the compressor and operating the internal combustion engine to drive the compressor, thereby transferring energy to the refrigeration cycle. The method may also involve engaging an electric motor with the compressor and operating the electric motor to drive the compressor, thereby transferring energy to the refrigeration cycle.

Abstract: A vibrator unit capable of being attached to a housing of a vibration generator includes a vibrator including a magnet and a back yoke arranged on or above the magnet, and an elastic member. The elastic member includes a vibrator attachment part attached to the vibrator, a housing attachment part attached to the housing, and an arm part coupling the vibrator attachment part and the housing attachment part, said arm part displaceably supporting the vibrator attachment part at least in a horizontal direction with respect to the housing attachment part. The back yoke includes a planar part arranged on or above the magnet and a holding part bending the planar part toward the frame from the planar part. The vibrator attachment part is held and embraced by the holding part.

Abstract: On an AC permanent magnet switched reluctance motor stator seat, “C-shaped” or “U-shaped” excitation salient pole pairs or compound excitation salient pole pairs are set up in a balanced way. Excited by excitation current, the permanent magnet flux of compound excitation salient pole pair is imported into the main loop of excitation flux to form compound excitation magnetic potential. On the rotor support, permanent magnets are fixed at the same interval, and the magnetic polarity of neighboring permanent magnets on a same rotating surface is different. When the rotating shaft rotates, two magnet pole faces of each permanent magnet on rotor support will be dead against the two ports of each excitation salient pole pair on the stator, forming a closed magnetic loop with air gap.

Abstract: A step motor includes a stator and a rotor. The stator includes a stator core and stator windings. The stator core includes a ring shaped yoke and a plurality of teeth extending inwardly from the ring shaped yoke. The rotor is rotatably mounted with respect to the stator. The rotor includes a permanent magnet member surrounded by the plurality of teeth. The stator windings are wound around the plurality of teeth to form a plurality of stator poles. The stator core are formed from a core strip with High magnetic conductive, the core strip are bent to enable opposite ends of the core strip to be connected with each other. The step motor of the present invention has a simplified structure and enhanced efficiency.

Abstract: A protection circuit applied to a convertor including M pieces of driving switch modules each coupled to a power source, a load and one of M sets of driving signals. The ith driving switch module is controlled by the ith set of driving signals to selectively enable current paths between the power source and the load. A first sub protection circuit in the protection circuit includes a first protection switch module and a first detection module coupled to the first protection switch module. When the ith set of driving signals indicates an error event, the first protection switch module selectively couples the ith set of driving signals to a reference voltage according to a first detection signal. M and i are positive integers, and i is not larger than M.

Abstract: A power supply controller having a shortened reset time due to a small hiccup voltage includes an electrical circuit providing a repeated voltage hiccup of a supply voltage of the controller of a switched-mode power supply (SMPS) when the controller enters a latched state. A plurality of comparators each have an input coupled with the controller supply voltage. A multiplexer and two latches are included, each coupled with one or more comparator outputs, and a restart controller is coupled with an output of one of the latches. The restart controller in various implementations toggles a switch to activate and deactivate a current sink to create the supply voltage hiccup. In other implementations, the switch is excluded and the restart controller toggles a voltage startup transistor to couple and decouple a voltage source with the supply voltage to create the voltage hiccup.

Abstract: A semiconductor device for controlling a power-up sequence is provided. The semiconductor device includes a plurality of chips. Each of the chips includes a power-up sequence controller configured to differently control generation sequences of internal source voltages. The power-up sequence controller changes the generation sequences of the internal source voltages in response to a power stabilization signal which is generated according to an external source voltage applied thereto in powering up the semiconductor device. Accordingly, a power-up current which is generated according to the internal source voltages being generated has a peak current distribution where a peak current may be equally distributed.

Abstract: A control circuit includes a first integrator circuit corresponding to a first mode and a second integrator circuit corresponding to a second mode. The control circuit is configured to transition control of the power converter between the first mode and the second mode such that one of the first mode and the second mode is a controlling mode for a period of time and the other one of the first mode and the second mode is a non-controlling mode for the period of time, and set an output of the first integrator circuit or the second integrator circuit corresponding to the non-controlling mode to equal an output of the first integrator circuit or the second integrator circuit corresponding to the controlling mode. Other example control circuits, power converters including a control circuit, and methods for controlling a power converter are also disclosed.

Abstract: A regulated charge pump circuit and method of operation are described. A charge pump is configured to supply an output voltage to a load, and includes at least one charge pump stage, a charge pump driver arranged to drive the charge pump stages and a controllable current source connected between a supply voltage and the charge pump driver. An analog regulation loop includes a measurement circuit arranged to output an analog regulation signal indicative of a difference between a current value of the output voltage and a target value of the output voltage. A signal path is connected to the charge pump to supply the analog regulation signal to the controllable current source to operate the controllable current source to modulate the supply voltage that can be provided to the charge pump driver to regulate the output voltage.

Abstract: One example includes an adaptive bus voltage auto-selection system. The system includes an input bridge configured to rectify an AC input line voltage to generate a DC bus voltage. The system also includes a voltage monitor configured to monitor an amplitude of the AC input line voltage and to generate an activation signal based on the amplitude of the AC input line voltage relative to a predetermined reference voltage. The system further includes an anti-series transistor switch pair that is controlled via the activation signal to selectively couple and de-couple the input bridge to an output stage to provide the DC bus voltage at a first amplitude based on a first state of the activation signal and at a second amplitude based on a second state of the activation signal, respectively.

Abstract: A power converter includes a carrier, a first electronic component, a second electronic component, and a connection part. The first electronic component is disposed on the bottom surface of the carrier. The second electronic component is disposed on the top surface of the carrier. A first terminal of the connection part is coupled to the top surface or the bottom surface of the carrier. A second terminal of the connection part is a bonding pad and attached to the first electronic component's surface apart from the carrier. The carrier is disposed at ? to ? of a height of the power-converter. The connection part is fabricated by mechanical support of the first electronic component.

Abstract: Methods, devices, techniques, and circuits are disclosed for current control of a buck converter. In one example, a device is configured to receive a selected average current value for a current driver. The device is further configured to determine a set of parameters for the current driver. The device is further configured to generate an output to the current driver to cause the current driver to output a switching signal with an average current that corresponds to the selected average current value.

Abstract: A control circuit includes: a comparing circuit, having a first input terminal and second input terminal, configured to operably generate a comparison signal according signals received by the first and second input terminals, wherein the first input terminal is utilized for coupling with a reference signal and the second input terminal is utilized for coupling with a feedback signal; a periodic signal generating circuit configured to operably generate a periodic signal and apply the periodic signal to the first input terminal or the second input terminal of the comparing circuit; and a control signal generating circuit for controlling an on time of a power switch according to the comparison signal. The periodic signal generating circuit clamps a limit of the periodic signal to a predetermined value, but does not configure the slope of the periodic signal to be zero when there is no current passing through the inductor.

Abstract: A power supply unit arrangement for an electronic device includes a first switching converter with a first control loop that provides a controlled output voltage (DC-out) at a node; a second switching converter with a second control loop that alternatively provides the controlled output voltage (DC-out) at the node; and an open-loop control circuit connected to the first control loop and the second control loop, wherein the open-loop control circuit, upon a changeover of the current supply from the first switching converter to the second switching converter, sets a predetermined control state of the first control loop and deactivates the first switching converter and, upon a changeover of the current supply from the second switching converter to the first switching converter, reactivates the first switching converter using the predetermined control state.

Abstract: In event-based switching for power conversion, binary electrical event signals are selected from a number of available binary electrical event signals. Fewer than all of the available binary electrical event signals are selected. The selected binary electrical event signals are optionally processed in generating respective processed binary electrical event signals. One of the respective processed binary event signals is selected as a switch turn-on signal and another of the respective processed binary electrical event signals is selected as a switch turn-off signal, to control at least one switch in a switching mode power converter.

Abstract: A switched-mode voltage converter includes an energy storage component, a plurality of switches and a controller. The energy storage component is coupled to a voltage source, and includes a switching terminal. The plurality of switches are coupled between the switching terminal of the energy storage component and a circuit node. The controller is configured to control the plurality of switches, such that switching terminal of the energy storage unit is intermittently coupled to the circuit node. Further, the controller controls the plurality of switches to switch from a first connecting state to a second connecting state at different time points.