12th week of 2020 patent applcation highlights part 69 |
Patent application number | Title | Published |
20200091767 | METHODS AND SYSTEMS FOR DETERMINING A LINEAR POWER FLOW FOR A DISTRIBUTION NETWORK - Methods and systems are disclosed for determining active and/or reactive power flows in a distribution line of a distribution network. The determined power flows may be linear in nature, and they may further be used to determine an overall network power flow for the distribution network. Further, the network power flow can be used to determine a voltage magnitude for any distribution bus in the distribution network. The methods and systems are capable of considering a plurality of sensitivity factors that may affect one or more distribution buses. | 2020-03-19 |
20200091768 | DISTRIBUTED CONTROL ADAPTIVE WIRELESS POWER TRANSFER SYSTEM - A wireless power transfer system includes a transmitter configured to transmit power to a receiver, for example, through coupled resonators. The transmitter receives feedback from the receiver, and uses the feedback to control the power transmission, to control a parameter at the receiver, for example, a rectified voltage output by the receiver. | 2020-03-19 |
20200091769 | LIQUID DISPENSER FOR ANIMALS - A pet water dispenser may include a water tank having an upper opening, a pump, a water supply pipe connected to the pump to transfer water, and a water supply hole formed in a water supply plate communicating with the water supply pipe. A removable inner assembly may include the pump, the water supply pipe, and the water supply plate, and may further include a wireless power receiver to receive power from a wireless power transmitter, which may include a plurality of partially overlapping coils. | 2020-03-19 |
20200091770 | POWER FEEDING UNIT, POWER RECEIVING UNIT, AND FEED SYSTEM - A power feeding unit includes: a power feeding electrode configured to be coupled through an electric field with a power receiving electrode of a power receiving unit; a power feeding section configured to feed the power receiving unit with power through the power feeding electrode; and a power feeding side communication section configured to communicate with the power receiving unit through the power feeding electrode. | 2020-03-19 |
20200091771 | WIRELESS POWER TRANSMISSION DEVICE - A coil structure for wireless power transmission is provided. The coil structure comprises: a primary resonance coil wound in a spiral shape around a centripetal point; a primary induction coil, which supplies power to the primary resonance coil in a nonconnected state with an input or output terminal of the primary resonance coil and is wound in a spiral shape on a substantially same plane around a substantially same centripetal point as the centripetal point; a switch configured to be parallel with the primary resonance coil so as to control the ON and OFF of an operation of the primary resonance coil; and a capacitor coupled to the primary resonance coil so as to form a magnetic resonance with the primary resonance coil. | 2020-03-19 |
20200091772 | POWER RECEPTION DEVICE AND POWER RECEPTION METHOD FOR NON-CONTACT POWER TRANSMISSION - A power reception control device provided in a power reception device of a non-contact power transmission system includes a power-reception-side control circuit that controls an operation of the power reception device, and a power supply control signal output terminal that supplies a power supply control signal to a charge control device, the power supply control signal controlling power supply to a battery. The power-reception-side control circuit controls a timing at which the power supply control signal (ICUTX) is output from the power supply control signal output terminal. The operation of the charge control device is compulsorily controlled using the power supply control signal (ICUTX). | 2020-03-19 |
20200091773 | Energy Storage Device For Wireless Environmental Applications - Systems and methods are described for receiving wireless power and providing wired power. In some embodiments, a wirelessly chargeable battery apparatus comprises a housing and one or more antennas situated within the housing. The antennas are configured to receive wireless radio frequency (RF) power from a wireless charging system. One or more electronic circuit boards (PCBs) situated within the housing are included, and the one or more electronic circuit boards are configured to convert the received wireless RF power to direct current (DC) power. The apparatus also comprises one or more batteries configured to store the DC power and a port configured to couple with a cable external to the housing and to provide stored DC power from the one or more batteries to the cable. | 2020-03-19 |
20200091774 | WIRELESS POWER TRANSMISSION DEVICE AND METHOD - The present specification discloses a wireless power transmission device and method thereof. Here, the wireless power transmission device according to an embodiment of the present invention includes: a laser light source unit; a light output unit which emits laser light generated from the laser light source to a light receiving unit of the wireless power receiving device; and a control unit which controls shaping of the emitted light according to the angle of arrival with the light receiving unit so that an overfill loss is less than a predetermined threshold value. Here, the control unit detects the point at which the power conversion efficiency of the light receiving unit is highest, and sets and controls the power density value of the emitted light at the detected point. | 2020-03-19 |
20200091775 | POWER SUPPLYING DEVICE, WIRELESS POWER TRANSMISSION SYSTEM AND METHOD THEREOF - A wireless power transmission system is provided, which includes a power supplying device and a power receiving device. The power supplying device electrically connects to an outside supply terminal and has a wireless transmission module. The power receiving device has a wireless receiving module. Wherein, the power supplying device connects to the wireless receiving module via the wireless transmission module and transmits a power from the outside supply terminal to the power receiving device, after the power supplying device detects the wireless receiving module via the wireless transmission module. Alternatively, after the power receiving device detects the wireless transmission module via the wireless receiving module, the power receiving device connects to the wireless transmission module via the wireless receiving module so as to receive the power transmitted by the power supplying device. | 2020-03-19 |
20200091776 | METALLIC FOREIGN OBJECT DETECTOR, WIRELESS POWER TRANSMITTING DEVICE, WIRELESS POWER RECEIVING DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM - An object of the present invention is to reduce the possibility of failure in the detection of metallic foreign object. A metallic foreign object detector includes a sensor part having at least one antenna coil that receives a magnetic field or current to generate a vibration signal a vibration time length measurement circuit that measures a vibration time length indicating the length of time required for the vibration of the vibration signal output from the sensor part corresponding to a predetermined wavenumber larger than 1, and a determination circuit that determines the presence/absence of a metallic foreign object approaching the antenna coil based on the vibration time length and a criterion vibration time length which is the vibration time length obtained in the absence of the approaching metallic foreign object. | 2020-03-19 |
20200091777 | RECONFIGURABLE ELECTROMAGNETIC WAVE SHIELDING FILTER, WIRELESS CHARGER FOR VEHICLE HAVING THE SAME, AND CONTROL METHOD THEREOF - A reconfigurable electromagnetic wave shielding filter is provided in a wireless charger for a vehicle and capable of selectively shielding an electromagnetic wave (EMI noise) that interferes with an AM broadcast band, an electromagnetic wave that interferes with a FM broadcast band, and an electromagnetic wave that interferes with a DMB broadcast band. A wireless charger for a vehicle includes the reconfigurable electromagnetic wave shielding filter and a control method thereof, in which broadcast information being received by the user is collected, and then, an electromagnetic wave that interferes with a broadcast band corresponding to the collected broadcast information is shielded, thereby to allow the user to listen to the broadcast without noise. | 2020-03-19 |
20200091778 | WIRELESS TRANSMISSION SYSTEM AND METHOD THEREOF FOR POWER AND DATA TRANSMISSION - A wireless transmission system and a method thereof for power and data transmission are provided. The wireless transmission system includes a first apparatus and a second apparatus. The first apparatus includes a power supply, a wireless charging transmitter and a first communication transceiver. The wireless charging transmitter is coupled to the power supply and transmits the power. The first communication transceiver is coupled to the power supply. The second apparatus includes a wireless charging receiver and a second communication transceiver. The wireless charging receiver receives the power. The second communication transceiver is turned on by the power and performs a data transmission with the first communication transceiver. Accordingly, electric power and data can be transmitted wirelessly, so that the wall of house would not need to be drilled. | 2020-03-19 |
20200091779 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING MULTI-WIRELESS CHARGING - According to certain embodiments, an electronic device comprises a plurality of coils configured to transmit charging power; a communication circuit; at least one processor; and at least one memory. The at least one memory stores instructions that, when executed by the at least one processor, causes the at least one processor to perform a plurality of operations. The plurality of operations comprises transmitting a first signal for requesting device-related information to a plurality of external electronic devices through the communication circuit, receiving a corresponding plurality of first response signals in response to the first signal from the plurality of external electronic devices through the communication circuit, selecting at least one external electronic device from among the plurality of external electronic devices on the basis of the plurality of first response signals, and upon selecting the at least one selected external electronic device, transmitting a second signal that indicates the at least one selected external electronic device and comprises at least information associated with the plurality of external electronic devices to the plurality of external electronic devices via the communication circuit. | 2020-03-19 |
20200091780 | APPARATUS FOR TRANSMITTING AND RECEIVING INFORMATION ABOUT AMOUNT OF POWER FOR IDENTIFYING TRANSMISSION EFFICIENCY ASSOCIATED WITH WIRELESS POWER TRANSFER AND CONTROL METHOD THEREFOR - A wireless power transmitter is provided. The wireless power transmitter includes an inverter configured to output alternating current (AC) power using direct current (DC) power, a coil configured to receive the AC power, and a control circuitry, wherein the control circuitry is configured to identify an input associated with transmitting the AC power, output the AC power at a specified frequency determined according to the input, using the inverter, transmit the AC power to an external electronic device using the coil, and, while at least partially transmitting the AC power to the external electronic device, transmit information associated with an amount of the DC power input to the inverter to output the AC power to the external electronic device, such that the external electronic device identifies transmission efficiency of the AC power using the information associated with the amount of DC power. | 2020-03-19 |
20200091781 | WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER AND CONTROL METHOD THEREOF - Disclosed is a control method for transmitting charging power to a wireless power receiver in a wireless power transmitter, including receiving an advertisement signal from a wireless power receiver, the advertisement signal including a handle value and a preset universally unique identifier (UUID), identifying a value assigned to a characteristic by adding a predetermined number to the handle value, transmitting a connection request signal to the wireless power receiver for establishing a communication connection with the wireless power receiver, in response to the advertisement signal, receiving, from the wireless power receiver, static information of the wireless power receiver over the communication connection, and transmitting, based on the static information, a control signal including permission information to the wireless power receiver. | 2020-03-19 |
20200091782 | MAGNET STRUCTURE HAVING A PLURALITY OF INDIVIDUAL MAGNETS INTEGRATED INTO A MESH STRUCTURE - A three-dimensional magnet structure ( | 2020-03-19 |
20200091783 | SELF-EXCITING SYNCHRONOUS RELUCTANCE GENERATORS - A stator for a generator includes a ferromagnetic core with two or more poles arranged about a rotation axis, a direct current (DC) field coil, and four or more alternating current (AC) coils. The DC field coil is wrapped about the pole. A first of the AC coils is wrapped about the pole at a location circumferentially spaced from a second of the AC coils. Generator systems and methods self-exciting synchronous reluctance generators are also described. | 2020-03-19 |
20200091784 | Variable Torque Low Inertia Brushless Motor - Embodiments of a small brushless motor include a two-pole rotor and a stator having four slots into which electrical coils are placed. Additional embodiments of a small brushless motor include a two-pole rotor and stator having eight slots into which four, six, or eight electrical coils are placed. The stator may include a means for limiting cogging. The small brushless motor having a high torque constant, low coil resistance, low coil inductance, and high thermal conductivity is provided. | 2020-03-19 |
20200091785 | Method of Manufacturing Magnet Embedded Core - In a method of manufacturing a magnet embedded core ( | 2020-03-19 |
20200091786 | ELECTRIC MOTOR WITH LAMINATED SHEET WINDINGS - An electric machine employs laminated sheets windings (LSWs) and permanent magnets which rotate about the LSWs. An axial embodiment uses axially magnetized magnets with LSWs laid radially in the plane of the motor. The magnets may be arranged as Halbach arrays. Magnets and LSWs are arranged concentrically with an air gap therebetween; the motor may employ “Large Air Gap Electric Ring” (LAGER) technology. The laminated sheets form a continuous stack of series-connected concentric metal layers; dielectric layers insulate each metal layer from its adjacent layers. Cuts arranged periodically around each LSW run parallel to the rotation axis and extend through all of the metal layers, with adjacent cuts originating on opposite sides of the LSW such that they form a serpentine path for current to flow as it flows around the winding. | 2020-03-19 |
20200091787 | ROTATING ELECTRIC MACHINE - In the rotating electric machine, a first terminal and a second terminal extend from two of the slots and a third terminal extends from one of the slots, which is located between the two slots. The first terminal and the second terminal are connected to each other with use of a bus bar. The bus bar has: a first end portion to be connected to a distal end portion of the first terminal; a second end portion to be connected to a distal end portion of the second terminal; and an interconnecting portion configured to couple the first end portion and the second end portion to each other, which is arranged in the circumferential direction on the stator core side of the first end portion and the second end portion so as to pass on the slot side of the third terminal. | 2020-03-19 |
20200091788 | ELECTRIC MOTOR AND WINDING METHOD - An electric motor and winding method that improves its characteristics of torque and speed. An improved electric motor that provides higher power density and safety features by a novel winding architecture. Since the new winding architecture does not affect the measures, design or materials of the electric motor there is no need for any special manufacturing process or extra cost. Therefore the improved electric motors are smaller, lighter and cheaper than the same power size conventional electric motors as in other prior arts. The improved electric motor provides redundancy features against failure. | 2020-03-19 |
20200091789 | MOTOR STATOR FOR COMPRESSOR, PERMANENT MAGNET MOTOR, AND COMPRESSOR - A motor stator ( | 2020-03-19 |
20200091790 | STATOR - A stator includes a stator core, and a coil mounted on the stator core and having an insulating film, at least a part of the insulating film being coated with a protective paint, wherein a concave section is formed in a surface of the insulating film, and the protective paint is present in the concave section. The insulating film has hollow capsules formed therein. | 2020-03-19 |
20200091791 | ELECTRICALLY INSULATING, THERMALLY CONDUCTIVE COATINGS FOR ELECTRICAL SYSTEMS AND DEPOSITION METHODS THEREOF - An electric machine includes a rotor assembly having a rotor core that extends in an axial direction and a stator assembly surrounding and coaxial with the rotor assembly. The stator assembly includes a stator core having slots extending in a radial direction into an inner surface of the stator core and extending axially from a first end surface to a second end surface of the stator core. The stator assembly includes stator coil windings disposed within the respective slots of the stator core and a first electrically insulating conformal coating disposed between the stator core and the stator coil windings. The conformal coating includes a polymer matrix impregnated with an effective amount of thermally conductive ceramic materials, above a percolation threshold, that form continuous thermal pathways across a thickness of the first coating. | 2020-03-19 |
20200091792 | STATOR AND METHOD OF MANUFACTURING A STATOR - A stator includes a stator core, and a coil mounted on the stator core and having an insulating film, at least a part of the insulating film being coated with a protective paint, wherein the insulating film has a vacancy, and the vacancy is formed by a hollow capsule. In addition, the protective paint has a powder, and an internal form of the vacancy is smaller than an external form of the powder. | 2020-03-19 |
20200091793 | STATOR ASSEMBLY FOR A BRUSHLESS MOTOR IN A POWER TOOL - A stator assembly for a brushless DC motor includes a stator core defining poles and having an outer surface, at least one magnet wire wound on the poles forming phases, and a bus bar including a non-conductive mount arranged on the outer surface and conductive terminals. Each conductive terminal includes: a main portion mounted on the non-conductive mount substantially parallel to the longitudinal axis of the motor, a tang portion folded over the main portion from a first longitudinal end of the main portion, and a connection tab at a second longitudinal end of the main portion. At least a contact portion of the at least one magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal, and the connection tab is arranged to makes electric contact with a wire supplying electric power to the motor. | 2020-03-19 |
20200091794 | Electric Pump - An electric pump includes an impeller and a brushless motor including a rotor, a stator, a circuit board, and a coil terminal. The rotor is coupled to the impeller. The stator includes a plurality of stator coils circumferentially disposed around or within the rotor and include a first stator coil. The circuit board extends in a plane crossing with an axial direction of the rotor and includes an electric circuit. The coil terminal electrically couples the first stator coil and the electric circuit of the circuit board. The coil terminal extends from the circuit board and is disposed outside or inside the first stator coil in the radial direction. The coil terminal includes a coil-side end positioned further away from the circuit board in the axial direction than at least a portion of the first stator coil. The coil terminal is coupled to the first stator coil via the coil-side end. | 2020-03-19 |
20200091795 | Rotor Shaft Retainer - A rotor shaft retainer is described, preferably to be used in an electric pump intended for use in white line equipment, and in particular to be coupled to the upper edge of the housing of the electric pump, and capable of allowing sealing of the shaft passing therethrough. The retainer has a basically cylindrical shape and includes a disc-shaped base, externally provided with a fixing ring, and a cylindrical dome uppermost provided with an opening, defining a central passageway formed from the opening to a lower opening of the base. The central passageway includes at least two annular lips-shaped cavities projecting themselves in the inner radial direction and facing the upper opening of the retainer. The lips-shaped cavities are made of rubber having Shore A hardness from 62 to 78 and define respective angles from 38 to 58 degrees in relation to the plane of the bottom surface of the base. Such construction and characteristics lead to a sufficient seal between the shaft and the retainer and still allow the relief of the gases generated within the pump chamber, without the need for relief holes in the retainer body. | 2020-03-19 |
20200091796 | MOTOR CONDUIT PLUG - A conduit plug for attachment to a motor case includes a base partly defining a central passage extending along a longitudinal axis of the plug. The base has a skirt extending radially with respect to the longitudinal axis and two circumferentially-spaced straight-edge segments. The plug further includes a ribbed tube cooperatively defining the central passage and extending from the skirt opposite the two straight-edge segments. Each of the two straight-edge segments includes a camming clip configured for resilient retraction toward the central passage. | 2020-03-19 |
20200091797 | SELF-DEACTIVATING SHUT-DOWN SWITCH FOR A POWER TOOL - A power tool is provided including an electric motor, a power terminal receiving electric power form a power supply, an actuator, a power switch circuit disposed between the power terminal and the electric motor, and a controller controlling a switching operation of the power switch circuit. A power contact switch is coupled to the actuator and disposed on a first current path to selectively connect the power switch circuit to the power supply. A solid-state load switch disposed on a second current path from the power terminal to the controller is controllable via output of the power contact switch or a self-activating feedback signal from the controller. A solid-state override switch is provided controllable via a self-deactivating feedback signal from the controller and having an output commonly coupled to the output of the power contact switch to turn off the load switch even when the power contact switch is closed. | 2020-03-19 |
20200091798 | ELECTRIC MOTOR SYSTEM - An electric motor system includes a first electric motor including a first rotor, a first stator, and a first coil provided in the first stator, a second electric motor including a second rotor, a second stator and a second coil provided in the second stator and spaced apart from the first electric motor, and a heat conduction member disposed so as to extend between the first coil of the first electric motor and the second coil of the second electric motor. | 2020-03-19 |
20200091799 | COMPACT HEIGHT TORQUE SENSING ARTICULATION AXIS ASSEMBLY - A compact height torque sensing articulation axis assembly is disclosed herein having a torque sensor, an assembly mounting flange, a motor, a motor gearbox, a gearbox output shaft, an encoder, and a cable. The assembly may sense tension on robotic catheter pullwires in an articulating catheter and/or torque on a robotic output axis using the torque sensor. Disclosed embodiments may advantageously be used to achieve small, lightweight robotic catheter systems. | 2020-03-19 |
20200091800 | BENDING-FORMING JIG - A bending-forming jig used in bending and forming a protruding portion of a leg portion of a U-shaped conductor toward a circumferential direction, the protruding portion protruding from an axial end surface of a stator core, the bending-forming jig including a ring portion and a claw portion, the claw portion including a first abutting surface that rises from an axial end surface of the ring portion with the surface directed in the circumferential direction and abuts against a tip portion of the protruding portion from the circumferential direction, and a projecting portion that projects, at a tip end of the claw portion, in the circumferential direction from the abutting surface and abuts against the tip portion of the protruding portion from the axial direction toward the axial end surface of the ring portion. | 2020-03-19 |
20200091801 | COIL FORMER, WINDING DEVICE AND METHOD FOR THE OPERATION THEREOF TO PRODUCE COIL WINDINGS INTENDED FOR INSERTION IN A STATOR - The invention relates to a coil former ( | 2020-03-19 |
20200091802 | METHOD OF MANUFACTURING ROTOR CORE - A method of manufacturing a rotor core includes: acquiring individual weights of a plurality of permanent magnets to identify heavier permanent magnets and lighter permanent magnets based on a comparison of the individual weights; obtaining first to N | 2020-03-19 |
20200091803 | Induction Motor For Use In Drones - An induction motor may include a stator assembly and a rotor assembly that revolves or rotates around the state assembly. Additionally, a pole pitch of the induction motor may be less than two inches. The stator assembly may also optionally include a fractional slot winding. | 2020-03-19 |
20200091804 | LINE START SYNCHRONOUS RELUCTANCE MOTOR AND ROTOR THEREOF - The present invention relates to a line start synchronous reluctance motor and a rotor thereof. To this end, the present invention provides a line start synchronous reluctance motor including: a rotor; a plurality of conductor bars disposed on a side of an outer circumferential portion of the rotor; and flux barriers formed at an inner side of the rotor so as to be close to the conductor bars, wherein the flux barriers, which are formed in separate regions of a body of the rotor that are arranged to have opposite polarities, are formed to be asymmetrical to each other. Therefore, the present invention improves characteristics of the motor through the asymmetrical flux-barrier structure without changing the number of conductor bars, thereby allowing the initial starting of the motor to be smoothly performed, which is advantageous in terms of torque ripple characteristics and die casting. | 2020-03-19 |
20200091805 | DYNAMO-ELECTRIC MACHINE WITH REDUCED COGGING TORQUE - A dynamo-electric machine includes a primary part having a plurality of teeth, grooves that are located between the teeth and a yoke that is produced from a ferromagnetic material, a secondary part that is spaced apart from the primary part via an air gap and comprises a plurality of permanent magnets that lie adjacent to one another with alternating polarity, a multi-phase tooth coil winding that is arranged in the grooves, wherein adjacent tooth coils are connected to form groups having an identical electrical phase, wherein adjacent teeth of the groups of tooth coils having an identical electrical phase are connected in a magnetically conductive manner via the yoke and the yoke is interrupted between adjacent tooth coils having a different electrical phase. | 2020-03-19 |
20200091806 | MOTOR - The present invention relates to a brushless motor, and an objective of the present invention is to provide a brushless motor which can significantly reduce the cogging torque and torque ripple of the motor by minimizing the rate of change of magnetoresistance in accordance with a change in position of a rotor through the optimization of the shape design of the rotor and a stator, and can also reduce the weight of the brushless motor through the optimization of the shape design taking into consideration the materials of the rotor and the stator. | 2020-03-19 |
20200091807 | HOMOPOLAR LINEAR SYNCHRONOUS MACHINE - Disclosed is a yoke-less mover of a homopolar linear synchronous machine. The yoke-less mover may include a cold plate having slots. Ferromagnetic cores are fixed to the cold plate. Each of the ferromagnetic cores may protrude through a respective one of the slots, creating gaps between the ferromagnetic cores. Armature windings are fixed to the cold plate. The armature windings may occupy the gaps between the ferromagnetic cores. The ferromagnetic cores of the yoke-less mover have better ferromagnetic utilization and lower weight. It also enables more flexible topologies in the armature windings. | 2020-03-19 |
20200091808 | ELECTRICAL POWER GENERATION AND DISTRIBUTION - Systems and methods of generating, storing and/or distributing electric power are disclosed. The system may include two or more direct current battery subsystems, a direct current motor/alternating current generator combination, an electric power distribution network, and battery recharging elements. One battery subsystem may power an alternating current generator while the other battery subsystem charges using a portion of the generated power. Excess power may service other electric loads. The roles of the battery subsystems may be switched periodically between charging and powering, repeatedly. A gear box may connect the electric motor and generator to adjust the relative rotational speeds of each for optimal performance of the system. | 2020-03-19 |
20200091809 | MAGNETIC GEARBOX WITH FLUX CONCENTRATION HALBACH ROTORS - This application relates to translating mechanical energy from a low-speed rotor to a high-speed rotor or vice versa in a magnetic gearbox. More specifically, this application discloses various embodiments of a coaxial magnetic gearbox with flux concentration Halbach rotors. In certain implementations, the device further comprises a circular back iron (or other ferromagnetic material) disposed concentrically along the axis of the cylindrical magnetic gearing device. In such embodiments, this flux concentration back iron (or ferromagnetic pole) improves the torque density and can also help retain the magnets in place. | 2020-03-19 |
20200091810 | ELECTRIC MACHINE - An electric machine including a stator having a fully non-magnetic core and stator windings formed of a non-superconducting transposed conductor to reduce eddy current losses. It further includes a rotor having a fully non-magnetic core and superconducting windings or superconducting magnets which produce a magnetic field for interaction with the stator windings. A cryogenic cooling system is arranged to cool the stator windings to reduce conduction losses in the stator windings. | 2020-03-19 |
20200091811 | MULTI-PORT POWER SUPPLY APPARATUS AND POWER SUPPLYING METHOD THEREOF - A multi-port power supply apparatus and a power supplying method thereof are provided. The multi-port power supply apparatus includes a power supply circuit, a plurality of connecting ports, a plurality of power converters, and a common control circuit. The power supply circuit is configured to provide a source electric energy to the power converters. Any one of the power converters converts the source electric energy into an output electric energy and outputs the output electric energy to the corresponding connecting port. The common control circuit dynamically adjusts the source electric energy by controlling the power supply circuit according to a plurality of voltage demands and a plurality of power demands of the connecting ports, so as to enhance voltage conversion efficiency of the multi-port power supply apparatus. | 2020-03-19 |
20200091812 | SEMICONDUCTOR DEVICE - A semiconductor device includes: parasitic inductances connected to respective power transistors; and a drive circuit connected to connection points at which the power transistors are connected to the respective parasitic inductances, and driving the power transistors. The drive circuit insulates reference potentials of the power transistors at the connection points from each other. | 2020-03-19 |
20200091813 | SYSTEM AND APPARATUS TO PROVIDE CURRENT COMPENSATION - Apparatus and systems and articles of manufacture are disclosed to provide adaptive leakage compensation for powertrains. An example apparatus comprising a first current path including a first transistor and a second transistor; a second current path including a third transistor and a fourth transistor; and a current mirror including a fifth transistor and a sixth transistor, wherein a first ratio exists between the first transistor and the third transistor, a second ratio exists between the second transistor and the fourth transistor, and a third ratio exists between the fifth transistor and the sixth transistor, the third ratio greater than or equal to the second ratio, the second ratio greater than or equal to the first ratio. | 2020-03-19 |
20200091814 | CONTROL OF POWER CONVERSION DEVICE FOR DECREASING TOTAL HARMONIC DISTORTION - The present disclosure relates to frequency control of power conversion modules for decreasing THD (Total Harmonic Distortion) in a power conversion device in which a plurality of power conversion modules operate in parallel. In one aspect of the present disclosure, an embodiment provides a power conversion device comprising a plurality of power conversion modules being connected in parallel to receive input power and provide output AC power, and a frequency controller controlling each operating frequency of the plurality of power conversion modules, wherein, the frequency controller may include a function as a first frequency regulating step for regulating each operating frequency of the plurality of power conversion modules, so that the operating frequencies of the plurality of power conversion modules have a specific relationship with each other. | 2020-03-19 |
20200091815 | Control Circuits With Peak Current Limit Protection For Switched Mode Power Supplies - A control circuit for a switching power converter includes a current compensator. The current compensator is configured to receive a first current reference signal, a second current reference signal and a signal representing an input current of the switching power converter, generate a first current error signal based on the signal representing the input current and the first current reference signal for controlling at least one power switch of the power converter, generate a second current error signal based on the signal representing the input current and the second current reference signal, and adjust the first current error signal based on the second current error signal to limit the amount of current flowing through the switching power converter. Other example control circuits, switching power converters including control circuits and methods for limiting current in switching power converters are also disclosed. | 2020-03-19 |
20200091816 | System and Method for Controlling a Charge Pump - A charge pump controller for controlling a charge pump adapted to convert an input voltage into an output voltage with a conversion ratio is presented. The charge pump is operable in a plurality of modes corresponding to different conversion ratios. The controller includes a first selector for selecting a mode of operation of the charge pump. The first selector comprises a first input for coupling to a voltage supply; and a second input for coupling to a source signal. The first selector identifies a target value of the output voltage. The selector calculates a product of the conversion ratio and the input voltage. The selector compares the product with the target value and selects a mode of operation of the charge pump by increasing or decreasing the conversion ratio based on the comparison. The selector maintains the conversion ratio for a length of time before decreasing the conversion ratio. | 2020-03-19 |
20200091817 | APPARATUS AND METHOD FOR CHARGE PUMP POWER CONVERSION - Present invention is an apparatus and method for power conversion charge pumps that uses cross-coupling capacitors. High efficiency power converter charge pump for both divide by 3 (1/3), divide by 3/2 (2/3) are explicitly discussed. The power conversion charge pumps utilizing cross coupled capacitors may provide up to 40% reduction in a number of switches required for a charge pump implementation, thus reducing design area cost while also resulting in high-efficiency performance. | 2020-03-19 |
20200091818 | CAPACITOR CROSS COUPLED 2-PHASE BUCK CONVERTER - A buck converter uses flying capacitors and cross coupling. The flying capacitors reduce the voltage stress across the inductors and the devices, and may provide high efficiency at very low duty cycle ratios. In addition to the high efficiency performance, the converters may provide a significant reduction in area, since smaller inductors can be used compared to typical buck converters. An example of realization shows up to 90% efficiency at 0.5V output and 10 A load from a 3.6V input with small flying capacitors, compared to what is typically used in a switched capacitor converter. | 2020-03-19 |
20200091819 | Current Balance Feedback Circuit and Method to Improve the Stability of a Multi-Phase Converter - A solution is provided for a current balance feedback method to improve stability in a multi-phase DC-DC switching converter, where the current balance feedback signal is added to the PWM duty signal, after the PWM comparator. Using this feedback method, current balance oscillation issues caused by the non-linearity of the main control loop can be solved, and provide better current balance stability in the switching converter. Advantages include improving the stability of the current balance feedback loop by introducing the correction post PW modulation in the time domain, effectively bypassing interaction with the PW modulator. The current balance feedback loop stability improvement reduces PCB design effort and iteration. | 2020-03-19 |
20200091820 | DEVICES AND METHODS RELATED TO BOOST SUPPLY FOR LOW BATTERY 2G BIAS SUPPORT - A voltage supply system is disclosed, comprising a boost converter configured to receive an input voltage and generate a first output voltage at a first output node, a low-voltage supply circuit configured to receive the input voltage and generate a second output voltage at a second output node, and a routing circuit configured to route the first output voltage of the boost converter to the second output node during a selected condition of the input voltage. | 2020-03-19 |
20200091821 | CONTROLLER FOR BUCK DC/DC CONVERTER WITH EFFECTIVE DECOUPLING - A DC-DC power converter, a control component of a DC-DC power converter, and a method of controlling a buck DC-DC power converter are provided. The method includes receiving at least one of a measured load current and a measured input voltage. The measured load current is a measurement of current that flows from the buck inductor of a physical component of the buck DC-DC power converter. The measured input voltage is a measurement of the DC link input voltage measured across a DC link of the physical component of the buck DC-DC power converter. The method further includes generating a control signal to control a pulse width modulator (PWM), wherein the control signal is based on at least one of the measured load current and the measured input voltage. The PWM is configured to control at least one switch that is coupled to the buck inductor to allow the buck inductor to operate on a current flowing from the DC link only when the at least one switch is turned ON. | 2020-03-19 |
20200091822 | Control of Four-Switch, Single Inductor, Non-Inverting Buck-Boost Converters - A power converter includes a buck leg circuit connected between a voltage input of the power converter and ground, a boost leg circuit connected between a voltage output of the power converter and ground, an inductor connected between the buck leg circuit and the boost leg circuit, an error amplifier configured to compare the voltage output of the power converter against a reference voltage to yield a feedback signal, and a control circuit. The control circuit is configured to generate a reference buck ramp configured to be compared against the feedback signal to determine whether to operate the buck leg circuit in buck mode, and to generate a reference boost ramp by superposing a variable boost ramp portion on to the reference buck ramp, the reference boost ramp configured to be compared against the feedback signal to determine whether to operate the boost leg circuit in boost mode. | 2020-03-19 |
20200091823 | Current Equalization Circuit, Current Equalization Array Circuit, and Multiphase Converter - In a current equalization circuit, where a first inductor is connected to a first resistor, a second inductor is connected to both the first inductor and a second resistor, the input end of the first resistor and the input end of the second resistor are respectively connected to a first input end and a second input end of an error detection sub-circuit, a first output end of the error detection sub-circuit is connected to a first error adjustment sub-circuit, a second output end of the error detection sub-circuit is connected to a second error adjustment sub-circuit, the first error adjustment sub-circuit adjusts an input current of the first inductor based on a voltage signal from the error detection sub-circuit, and the second error adjustment sub-circuit adjusts an input current of the second inductor based on a voltage signal from the error detection sub-circuit. | 2020-03-19 |
20200091824 | SWITCHED-MODE POWER CONTROLLER WITH MULTI-MODE STARTUP - A switched-mode power controller includes a primary side controller circuit configured in a startup mode of operation to generate a fixed switching frequency pulse width modulation (PWM) signal with incrementing duty-ratio value. The PWM signal drives a main-switch that charges an inductive device with stored energy and discharges the stored energy into a capacitor on a secondary side to generate a power controller output voltage. Based on a comparison of the power controller output voltage with a reference voltage, the primary side controller circuit is configured to stop the incrementing of the duty-ratio of the PWM signal and begin a quasi-resonant mode of operation during which the primary side controller circuit reduces a number of valleys detected in one or more off-times of the main-switch in one or more respective main-switch switching periods. | 2020-03-19 |
20200091825 | EFFICIENT ELECTRICITY CONVERSION FOR HARVESTING ENERGY FROM LOW VOLTAGE SOURCES - A DC-DC converter and method are provided for converting a low voltage DC input to a higher voltage DC output. The DC-DC converter has an oscillator with a first relatively voltage sensitive and relatively low power transistor and a second relatively voltage insensitive and relatively high power transistor, the oscillator producing an AC signal from the low voltage DC input. The inclusion of the voltage sensitive transistor allows the oscillator to turn on at a relatively low voltage. The inclusion of the higher power transistor allows the oscillator to operate at a higher power once it turns on. The DC-DC converter can be used for converting energy harvested from low voltage sources. | 2020-03-19 |
20200091826 | FLYBACK CONVERTER, CONTROL CIRCUIT AND CONTROL METHOD THEREOF - A control circuit for a flyback converter is configured to adjust a conduction time of an auxiliary switch of the flyback converter in accordance with a drain-source voltage of a main switch of the flyback converter when the main switch is turned on, in order to achieve zero-voltage switching of the main switch. The flyback converter can include: a main power stage having the main switch to control energy storage and transmission of a transformer; and a clamp circuit having an auxiliary switch to provide a release path for releasing energy of leakage inductance of the transformer. | 2020-03-19 |
20200091827 | ACTIVE CLAMP FLYBACK CONVERTER CAPABLE OF SWITCHING OPERATION MODES - A power converter using an active-clamp flyback topology has a low-side switch, a high-side switch and a control circuit. The low-side switch connects a primary winding of a transformer to an input ground line, and the high-side switch is connected in series with a capacitor to form an active-clamp circuit connected in parallel with the primary winding. The control circuit provides high-side and low-side signals to the high-side and the low-side switches respectively, in response to a current-sense signal and a compensation signal. The control circuit is configured to operate the power converter in one of operation modes including a complementary mode and a non-complementary mode. When operated in the complementary mode, the high-side signal and the low-side signal are substantially complementary to each other, and the control circuit exits the complementary mode in response to the current-sense signal to enter the non-complementary mode. | 2020-03-19 |
20200091828 | RESONANT SWITCHING CONVERTER - A resonant switching converter can include: a multi-level generating circuit configured to generate a first voltage signal having at least two values, where the first voltage signal is zero in a first time interval, and is not zero and not greater than an input voltage of the resonant switching converter in a second time interval; and a resonant tank configured to multiplex at least two power transistors in the multi-level generating circuit, and to receive the first voltage signal to achieve resonant control. | 2020-03-19 |
20200091829 | RESONANT SWITCHING CONVERTER - A resonant switching converter can include: a voltage switching circuit configured to receive a first input voltage, and to generate a second input voltage of a resonant branch coupled to the voltage switching circuit; where when the voltage switching circuit is in a first operating state, the second input voltage provided to the resonant branch is less than the first input voltage; and where when the voltage switching circuit is in a second operating state, the input voltage provided to the resonant branch is zero. | 2020-03-19 |
20200091830 | VEHICLE POWER SUPPLY DEVICE - A power conversion unit includes an AC/DC converter converting alternating-current power supplied from an AC power supply into direct-current power to charge a high-voltage battery with the direct-current power and a step-down DC/DC converter generating an intermediate voltage provided by stepping down a voltage of direct-current power supplied from the high-voltage battery. A constant-voltage DC/DC converter outputs, to a low-voltage load unit, direct-current power provided by stepping down the intermediate voltage of direct-current power output from the step-down DC/DC converter at a constant step-down ratio. | 2020-03-19 |
20200091831 | Power Conversion Device and Three-Phase Power Conversion Device - A power conversion device includes: power conversion cells; and a controller to control the cells. Each cell includes: a transformer; a primary conversion unit on a primary side of the transformer; a secondary conversion unit on a secondary side; a primary bypass device for short-circuiting between input terminals of the cell; and a secondary bypass device for short-circuiting between output terminals of the cell. The input terminals and/or the output terminals of the cells are connected in series. When the primary conversion unit(s) of a part of the cells is stopped, the controller turns on the primary bypass device and sets secondary DC link voltages to prescribed values; and when the secondary conversion unit(s) of a part of the cells is stopped, the controller turns on the secondary bypass device and controls the primary conversions units to set primary DC link voltages to prescribed values. | 2020-03-19 |
20200091832 | POWER CONVERTERS WITH SEGREGATED SWITCH AND DRIVE MODULES - A phase leg for an inverter includes a switching module having a switch device, a power lead connected to the switching module and in electrical communication with the switch device, and a drive lead. The drive lead is connected to the switching module, is in electrical communication with the switch device, and is segregated from the power lead to limit heating of a drive module connected to the drive lead from current flowing through the power lead. Multilevel inverters and methods of making phase legs for inverters are also described. | 2020-03-19 |
20200091833 | CAPACITOR DEVICE - In a capacitor device for transferring power between a power source and a target component including an electronic and/or electric component, at least one capacitor is housed in a capacitor case. A busbar is drawn out from the capacitor case. The busbar electrically connects the at least one capacitor to the target component. The capacitor case includes at least first, second, and third fixture members for fixation of the capacitor case. The third fixture member is located to be separated from a virtual line connecting between a first reference point of the first fixture member and a second reference point of the second fixture member, and located to be closer to the target component than the first and second fixture members are. The busbar is located to be closer to the third fixture member than to the virtual line. | 2020-03-19 |
20200091834 | DEVICE FOR SUPPLYING POWER TO A WIRED DRONE - The present invention relates to a device for supplying electrical power to a wired system for a drone ( | 2020-03-19 |
20200091835 | MULTI-LEVEL VOLTAGE SOURCED CONVERTER - A voltage sourced converter for converting power from DC to AC features a chain of power electronic modules in between which each AC connection of the converter is made so as to form a series string or arm of the modules on at least one side of that connection to the chain which are controlled so as to produce at this connection an AC voltage waveform. | 2020-03-19 |
20200091836 | A SINGLE-STAGE SINGLE-INDUCTOR MULTIPLE-OUTPUT (SIMO) INVERTER TOPOLOGY WITH PRECISE AND INDEPENDENT AMPLITUDE CONTROL FOR EACH AC OUTPUT - A system and a control method for generating multiple independent alternating current (AC) voltages from a direct current (DC) voltage source in a single-inductor multiple-output (SIMO) inverter are disclosed. The system comprising: a DC voltage source ( | 2020-03-19 |
20200091837 | Switch Protection - The present application relates to a method and a switch control arrangement for controlling a switch ( | 2020-03-19 |
20200091838 | POWER CONVERSION DEVICE - A power conversion device includes: a first smoothing circuit connected to a first electric device; a second smoothing circuit connected to a second electric device; a first bridge circuit connected to the first smoothing circuit; a transformer having a primary side connected to a third electric device and a secondary side connected to the first bridge circuit and the second smoothing circuit; and a controller, wherein the controller varies a duty ratio of the first bridge circuit at a frequency higher than cutoff frequencies of the first and second smoothing circuits, controls a constant component of the duty ratio to control power exchange between the first and second electric devices, and controls a phase of a varying component of the duty ratio to control power exchange to and from the third electric device. | 2020-03-19 |
20200091839 | LOW FREQUENCY KINETIC ENERGY HARVESTER - A kinetic energy harvester includes a P-type hydrogel composite electrode; an N-type hydrogel composite electrode; a separator disposed between the P-type hydrogel composite electrode and the N-type hydrogel composite electrode; and a current collector between the P-type hydrogel composite electrode and the N-type composite electrode. | 2020-03-19 |
20200091840 | GRAPHITE/GRAPHENE-THERMOELECTRIC GENERATOR - The present invention relates to a device and system for energy generation comprising (1) a thermoelectric generator, (2) a low-power solid-state carbon heating element, and (3) a coolant element. Once the capital cost is discounted, this invention can provide unlimited amounts of essentially “free” electricity using a and maintenance-free system. | 2020-03-19 |
20200091841 | USE OF MOTOR FLUX LINKAGE MAPS FOR MONITORING THE HEALTH OF AN ACTUATOR - A method for monitoring the health of an actuator that includes a permanent magnet motor, a rotor and a stator. The method includes: providing a flux linkage reference map comprising a) nominal flux linkage map, having a plurality of nominal flux linkage curves of said motor, each of said nominal flux linkage curves being defined as defining a healthy condition of said actuator, and b) upper and lower tolerance limits of each of said nominal flux linkage curves, the range between said upper and lower limits being defined as a healthy condition of said actuator, and said method of monitoring the health of the actuator further comprising generating a first flux linkage curve of said motor that is to be monitored and determining whether or not said generated first flux linkage curve to be monitored is between the defined upper and lower limits of said flux linkage reference map. | 2020-03-19 |
20200091842 | MOTOR DRIVING DEVICE AND CONTROL METHOD FOR MOTOR DRIVING DEVICE - A motor driving device according to embodiments includes a driving circuit, a controller, and a mask processor. The driving circuit switches, a voltage applied to a motor, according to a switching operation by plural switching elements, for a first switching operation and a second switching operation, and to control driving of the motor. The controller controls the driving circuit on the basis of timing when an electric current flowing to the motor exceeds a predetermined current value. The mask processor sets a predetermined mask time in the switching operation by the control of the driving circuit and enables a change of the predetermined mask time on the basis of at least one of a power supply voltage and the predetermined current value. | 2020-03-19 |
20200091843 | MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD - According to one embodiment, a motor control device controls a brushless motor including a rotor with a magnet, and a stator including multi-phase wound coils. In the motor control device, a rotational-direction detector detects a rotational direction of the brushless motor, in accordance with a hall signal detected by a hall-signal detector and a phase current detected by a phase-current detector at timing when at least one transistor is set in an energizable state. | 2020-03-19 |
20200091844 | ACTUATOR CONTROLLER, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM STORING CONTROL PROGRAM THEREFOR - An actuator controller that is capable of drivingly controlling an actuator, such as a motor, with a sufficient accuracy in spite of a simple configuration while preventing an incorrect detection of switching of a magnetic pole. The actuator controller drivingly controls an actuator having a driving element and a stator. A driver supplies an electric current to a coil provided in the stator so as to drive the driving element. A sensor detects a magnetic field of the driving element so as to detect a position of the driving element. A processor exclusively controls a timing at which the sensor detects the magnetic field and a timing at which the driver supplies the electric current to the coil. | 2020-03-19 |
20200091845 | ROTOR POSITION ESTIMATION DEVICE, MOTOR CONTROL DEVICE, AND RECORDING MEDIUM - A rotor position can be more reliably estimated and control can be performed even in a case where a rotation speed of a motor is increased by PWM control with a simple configuration. | 2020-03-19 |
20200091846 | CONTROL DEVICE OF MOTOR, CONTROL SYSTEM, AND CONTROL METHOD - According to one embodiment, there is provided a control device including a drive circuit and a control circuit. The drive circuit includes a plurality of transistors and a current determination circuit. The plurality of transistors is electrically connected in parallel to each other between a first node and a second node. The first node is connected to a power supply circuit. The second node is connected to a DC motor. The current determination circuit determines a current flowing between the first node and the second node. The control circuit generates a control signal to control a number of transistors to be turned on among the plurality of transistors in accordance with the determined current. The drive circuit drives the DC motor using a current in response to the control signal. | 2020-03-19 |
20200091847 | CONTROL APPARATUS AND ONBOARD SYSTEM - A control apparatus is used in an onboard system provided to a vehicle. The onboard system includes an internal combustion engine and a power generator. The power generator generates power and supplies the generated power to an electrical load provided to the vehicle. An output torque of the internal combustion engine causes the vehicle to travel and causes the power generator to generate power. Based on a power supply request by the electrical load, the control apparatus controls the output torque of the internal combustion engine. In response to the output torque being increased based on the power supply request, the control apparatus causes the power generator to generate the power by the output torque, while restricting generated power during an initial period when the output torque is being increased. | 2020-03-19 |
20200091848 | METHOD FOR CONTROLLING AN ELECTRIC MACHINE, CONTROL DEVICE FOR AN ELECTRIC MACHINE AND ELECTRIC DRIVE SYSTEM - The present invention discloses a control system for an electric machine. In order to control the electric machine, predetermined frequency components are extracted from manipulated variables or measurement variables of the electric machine and are multiplied by a previously calculated control matrix. The control matrix can be calculated in advance here. Different control matrices can be formed in advance for different applications. As a result, simple efficient and robust control of the electric machine is possible, in particular for optimising and minimising harmonics. | 2020-03-19 |
20200091849 | METHOD AND SYSTEM FOR CONTROLLING A BRUSHLESS ELECTRIC MOTOR - A method for closed-loop control of the velocity of a brushless d.c. motor that supplies a torque (τ) to a rotating mechanical member, including carrying out a control of a FOC (Field-Oriented Control) type ( | 2020-03-19 |
20200091850 | MOTOR DRIVING DEVICE AND STEERING SYSTEM - In a motor driving device, a current detector detects a value of the motor current, and a limit variable calculator calculates a calculation value of a limit variable for limiting the command current. A determiner determines, based on a relationship between the value of the motor current and the calculation value of the limit variable, whether the motor current is in a less-response situation to change of the command current. A current limiter determines whether to limit a value of the command current based on the calculation value of the limit variable in accordance with a result of the determination of whether the motor current is in the less-response situation to change of the command current. | 2020-03-19 |
20200091851 | DEVICE AND METHOD FOR CONTROLLING LINEAR ACTUATOR - A control device for controlling a linear actuator having a linear motor and a brake device includes a magnetic pole position estimation means to estimate which of a plurality of sections obtained by dividing a magnetic pole position of 0° to 360°, the mover is located in on the basis of a direction of movement of the mover by pulse energization, a magnetic pole position setting means to perform direct current excitation at an estimated magnetic pole position estimated by the magnetic pole position estimation means and set the estimated magnetic pole position as a magnetic pole position of the mover, and a brake control means to turn on a brake device before pulse energization by the magnetic pole position estimation means is performed and turn off the brake device after the magnetic pole position estimation means estimates the section in which the mover is located. | 2020-03-19 |
20200091852 | CIRCUIT ARRANGEMENT AND METHOD FOR OPERATING A CIRCUIT ARRANGEMENT - A circuit arrangement for generating a three-phase rotating field at least at an electrical consumer including at least one mains voltage input including a single-phase alternating current, a first phase strand connected to the mains voltage input and the electrical consumer, whose transported voltage includes a first outer conductor, a second phase strand, whose transported voltage corresponds to a second outer conductor, an energy storage, a switching element, through which the energy storage can be connected via a third phase strand for generating a third outer conductor, and a control unit that can detect at least one trigger point of the first phase strand and the switching element can be actuated at least at a detected trigger point of the first outer conductor of the first phase strand to close or open the third phase strand and to generate the third outer conductor. | 2020-03-19 |
20200091853 | ELECTRIC VEHICLE - An electric vehicle includes drive systems, a control apparatus that controls the drive systems, and wheels. Each drive system includes a motor and an inverter coupled by wires. The wires of the drive systems are coupled by first bypass lines. Each inverter converts direct current power supplied from a corresponding power supply into alternating current power and supplies the alternating current power to the corresponding motor. Each motor drives the corresponding wheel. When an abnormality occurs in the supply of the alternating current power from the inverter to the motor in one drive system, the control apparatus performs control (i) to stop the supply of the alternating current power from the inverter of the one drive systems, and (ii) to supply the alternating current power supplied from the inverter to the motor in another drive system, to the motor of the one drive system via the first bypass lines. | 2020-03-19 |
20200091854 | INVERTER CONTROL METHOD - An inverter control method for preventing an increase or decrease fluctuation of a duty ratio of a pulse width modulation signal due to the dead time and suppressing generation of a torque ripple. A duty converter performs duty conversion on an input voltage waveform to a motor terminal voltage input circuitry to which a motor terminal voltage corresponding to each phase of an electric motor is input, and sets it as a detected duty. A command duty correction circuitry adds, to the command duty generated by a command duty generator, a differential duty that is a difference between the command duty and the detected duty, or subtracts the differential duty from the command duty, according to the direction of the phase current. Thereby, duty correction is performed to match the switching characteristics of the phase current before correction with the ideal characteristics. | 2020-03-19 |
20200091855 | SYSTEMS AND METHODS FOR ENERGY STORAGE AND POWER DISTRIBUTION - Energy storage and distribution systems are provided that comprises an energy storage device (e.g., one or more batteries) that can be used in conjunction with one or more electrical power sources—e.g., solar, wind, electric grid, fuel cell, or diesel. A controller is provided that manages energy storage and power distribution to loads, the energy storage device, or both. Energy storage and distribution systems can be configured to meter DC energy such that DC power usage for each load can be acquired. In this way, operators such as mobile network operators (MNOs) can be charged according to their DC power usages. Energy storage and distribution systems can also be configured to enable prioritized load shedding of one or more loads. | 2020-03-19 |
20200091856 | Solar module mounting apparatus with edge to edge waterproofing capabilities - An apparatus is contemplated for creating a structure which simultaneously serves as both a building element and a photovoltaic power source. Components of the invention interface with modules which comprise photovoltaic solar panels. When used collectively, these modules are contemplated as comprising a replacement for a roof or other building component. When the present invention is used, a roof or other building component can be created without the need for a separate underlayment, and without the need for tiles or another outer waterproofing layer. This setup results in power generation, cost savings, and environmental advantages. Additionally, embodiments of the invention comprise fixed stop elements which ensure correct placement of modules on a frame assembly. The invention could also include other elements, including water gutters, grab steps which facilitate access, and specially positioned border covers to protect and aesthetically cover wired regions of solar modules. | 2020-03-19 |
20200091857 | SOLAR ROOF TILE FREE OF BACK ENCAPSULANT LAYER - One embodiment can provide a photovoltaic roof tile. The photovoltaic roof tile can include a front glass cover, a back glass cover, a plurality of photovoltaic structures positioned between the front and back glass covers, and a single encapsulant layer positioned between the front glass cover and the photovoltaic structures. A surface of the photovoltaic structures is in direct contact with the back glass cover. | 2020-03-19 |
20200091858 | GLASS ROOF SHINGLE - A glass roof shingle includes a shingle cover layer made of a glass. A shingle base layer is disposed underneath the shingle cover layer. The shingle base layer and shingle cover layer define a cavity. A seal area formed between the shingle base layer and shingle cover layer and around the cavity controls ingress of moisture into the cavity. A photovoltaic module may be disposed within the cavity. | 2020-03-19 |
20200091859 | SOLAR TRACKING SENSOR BASED ON FIBER LIGHT GUIDANCE - A solar tracking sensor includes lens and four fibers respectively representing four directions installed in a lens barrel to serve as a fine-positioning daylighting module, and four groups of fibers installed on the side of the lens barrel to serve as a coarse-positioning daylighting module. A circuit board and four photocells are installed at the bottom of a cassette. Each photocell is connected to fine positioning fibers located in the same direction as the photocell, and is connected to coarse positioning fibers located in a direction diagonal to the direction of the photocell. By using a daylighting method of combining fine-positioning daylighting and coarse-positioning daylighting, the number of the photocells is reduced, the design of the circuit board is simplified, and costs are reduced; moreover, because the coarse-positioning daylighting module can collect sunlight in a wide-angle range, the tracking angle range of the sensor is enlarged. | 2020-03-19 |
20200091860 | SOLAR PHOTOVOLTAIC MODULE - The present invention relates to a solar photovoltaic module and, more specifically, to a solar photovoltaic module having an angle adjustment function. A solar photovoltaic module according to an embodiment of the present invention, which is configured by a plurality of solar cells for absorbing sunlight to generate electric current and generates electric power, comprises: a coupling protrusion formed on one side or both sides of the solar photovoltaic module; a support coupled to the coupling protrusion to be three-dimensionally rotatable; a wire connected to an upper part of the support; and a weight provided at a lower part of the support. | 2020-03-19 |
20200091861 | Portable Solar Collector - The disclosure relates to portable collector with solar panels where the collector may be reversibly rearranged to expose the solar panels to light. | 2020-03-19 |
20200091862 | SYSTEM AND METHOD FOR CONVEYING AN ASSEMBLY - Cleaning system including a brush assembly for cleaning solar panels. The brush assembly has at least one rotatable brush having a rotational axis. The rotatable brush includes a plurality of sets of bristles, each extending outwardly from a core. A shaft extends through the core of the brush. The shaft is a telescoping shaft, which is configured to retract and expand to create an elongated brush assembly. An apparatus, system, and method for conveying an assembly along a track. A rail includes a first planar side, a second planar side, and a third planar side. The first, second and third planar sides are arranged to form at least two acute angles ranging between 50 degrees and 80 degrees. A carriage assembly includes a drive wheel and at least two rollers. The drive wheel is configured to contact the second planar side and is configured to translate the assembly along the rail. The two rollers are configured to contact the two other sides to maintain the carriage in contact with the rail. | 2020-03-19 |
20200091863 | SOLAR PV GENERATOR WITH DISH REFLECTOR AND FLY'S EYE RECEIVER - An apparatus for generating electricity from solar energy has a large dish reflector with a fly's eye receiver positioned near the focus of the dish reflector, held by a dual axis tracking structure. The fly's eye receiver includes a field lens that concentrates sunlight into an image of the dish reflector, a two-dimensional fly's eye array of contiguous convex lenses extending across the dish image, and a photovoltaic cell behind each convex lens of the fly's eye array. Two imaging stages are provided. First, the dish reflector and the field lens concentrate the sunlight in the form of an image of the dish that is stabilized against pointing errors of the tracking mechanism. Second, the contiguous array of convex lenses divides the sunlight energy of the dish image into portions, one per convex lens, each portion being further concentrated by the respective convex lens onto a corresponding photovoltaic cell. | 2020-03-19 |
20200091864 | IMAGE PRODUCING NANOSTRUCTURE SURFACE - Disclosed is a method for construction or fabrication of a surface on a substrate, said surface capable of displaying a viewable static image comprising depositing curable polar optical materials in a controlled manner forming a multiplicity of nano-structure arrays, each array having the properties of specific individual reflectance of a narrow wavelength band and high transmissivity of wavelengths outside the reflective band, the dimensions and arrangements of the arrays purposefully chosen to produce predetermined intensities and hues of colors, said arrangements resulting in said viewable static image on said substrate. | 2020-03-19 |
20200091865 | PHOTOVOLTAIC SOIL MONITORING SYSTEM WITH AUTOMATED CLEAN REFERENCING SYSTEM - A solar panel cleaning system includes: an automated cleaning device for cleaning a surface of a reference cell panel; a cleaning device controller in communication with a motor of the automated cleaning device, the cleaning device controller configured to receive a signal corresponding to measurement of a current of photovoltaic system. The cleaning device controller activates the automated cleaning device to clean a surface of the reference cell panel when the received signal indicates that a measurement of the current of the photovoltaic system is to be taken. | 2020-03-19 |
20200091866 | SYSTEM AND METHOD FOR REDUCING CURRENT NOISE IN A VCO AND BUFFER - A voltage controlled oscillator (VCO) and buffer circuit includes a voltage controlled oscillator (VCO), a buffer circuit configured to receive a signal generated by the VCO, the buffer circuit comprising a first transistor having a parasitic gate-source capacitance (Cgs), and a second transistor coupled across the first transistor, wherein a gate of the first transistor is coupled to a drain and a source of the second transistor, and a gate of the second transistor is coupled to a source of the first transistor. | 2020-03-19 |