| 45th week of 2021 patent applcation highlights part 62 |
| Patent application number | Title | Published |
|---|
| 20210351648 | ROTOR FOR AN ELECTRIC MACHINE - A rotor for an electric machine, comprising a rotor shaft and a laminated core arranged on it, comprising multiple metal plates arranged in axial succession and lying against each other, as well as at least one coolant duct running through the laminated core, wherein the laminated core is axially clamped by at least one clamping means, wherein the clamping means shoved onto the rotor shaft comprises at least one axially braced spring element and at least one tolerance compensation disk. | 2021-11-11 |
| 20210351649 | STATOR OF ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE - According to one embodiment, a stator includes a stator core and coils having a rectangular cross-section. In one or more slots, a first rectangular conductor, which is positioned innermost in a radial direction and in which a pair of short sides in a cross section face in the radial direction, and a second rectangular conductor, which is positioned outer side of the radial direction than is the first rectangular conductor and in which a pair of long sides in the cross-section face in the radial direction, are disposed. The first rectangular conductor includes a bending part bent toward a circumferential direction. The second rectangular conductor includes a bending part bent toward the circumferential direction and a twisted part twisted about the circumferential direction. | 2021-11-11 |
| 20210351650 | STATOR OF ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE - According to one embodiment, in a stator, bridge parts of seventh coil segments extend in a direction departing from one end surface while being inclined at a predetermined inclination angle from an axial direction of a stator core to the outside of a radial direction. Regarding the bridge parts of the seventh coil segments adjacent to each other in the radial direction of the stator core, when the same cross-sections defined by the radial direction and the axial direction is viewed from a circumferential direction of the stator core, a first inclination angle of the bridge part positioned relatively in an inner side of the radial direction is smaller than a second inclination angle of the bridge part positioned relatively in an outer side of the radial direction. | 2021-11-11 |
| 20210351651 | ELECTRICAL MACHINE - An electrical machine, including a winding carrier, which has a multiple grooves and bears at least one winding. Each winding is formed by a conductor having multiple groove portions, which are led through respective grooves of the winding carrier and conductively connected by connection portions of the conductor that lie outside of the grooves; when current flows through the conductor in question from a first connection point to a second connection point of the winding in question, the current is led about an axis of rotation of the electrical machine with a first direction of revolution in all the connection portions that lie in a first conductor portion of said conductor, which first conductor portion includes multiple connection portions, and with a second direction of revolution opposite the first direction of revolution in all the connection portions that lie in a second conductor portion of said conductor. | 2021-11-11 |
| 20210351652 | FLAT-TYPE STATOR WITH MULTILAYER COILS FOR DISC-TYPE MOTOR - A flat-type stator with multilayer coils for a disc-type motor is provided with a stator coil and a flat stator base, wherein a coil assembly is arranged in the stator coil, and a plurality of coil assemblies are arranged in a ring or in a straight line on the stator base; the coil assembly is formed by stacking even-numbered layers of single coils overlapped with the stator base in a vertical direction, each single coil is composed of even-numbered layers of single-layer coils wound by a single wire, and the single-layer coil is provided with a single axial wire; metal wires are sequentially connected in series among the plurality of coil assemblies to form a coil unit, the single coils in the coil unit have a same structure and a same shape and are not overlapped axially. | 2021-11-11 |
| 20210351653 | ARMATURE AND MANUFACTURING METHOD OF ARMATURE - In this armature, between the first segment conductor and the second segment conductor that are joined to each other in the joint portion, a first clearance portion is provided between the tip end portion of the first leg portion and the second leg portion body portion in the axial direction, and a second clearance portion is provided between the tip end portion of the second leg portion and the first leg portion body portion in the axial direction. | 2021-11-11 |
| 20210351654 | STATOR COIL, METHOD OF MANUFACTURING THE SAME, AND ROTATING ELECTRIC MACHINE - Provided is a stator coil, including: a coil conductor; a first insulating layer in which a first mica tape is wound and laminated around an outer periphery of the coil conductor; and a second insulating layer in which a second mica tape is wound and laminated around an outer periphery of the first insulating layer, wherein the first mica tape contains mica in a specific content, wherein 60 mass % or more of the mica contained in the first mica tape passes through a JIS standard sieve having a nominal opening of 250 μm, wherein the first mica tape has a specific lamination thickness, and wherein 40 mass % or less of mica contained in the second mica tape passes through the JIS standard sieve having a nominal opening of 250 μm. | 2021-11-11 |
| 20210351655 | Coil and Electrically Excited Synchronous Machine - A coil has a winding that is coated with an epoxy resin in at least some areas, wherein a ratio of a compressive strength of the epoxy resin to the tensile strength thereof at room temperature ranges between 2 and 5, the modulus of elasticity at room temperature is at least 5000 MPa, and at a glass transition temperature of the epoxy resin, the modulus of elasticity and the tensile strength have values amounting to at least 30% of the values at room temperature. | 2021-11-11 |
| 20210351656 | MOTOR DEVICE - A motor device may include: a motor housing including a mounting hole; a motor cover mounted on the motor housing, and including a connection hole facing the mounting hole; a coupling member inserted into the mounting hole and the connection hole, and mounted in the mounting hole and the connection hole; and a fastening member coupled to a main housing through the coupling member. | 2021-11-11 |
| 20210351657 | MOTOR - A motor includes a housing, a bearing holder, and a lid. The housing includes a tubular housing body having an end portion at one side, a recessed portion recessed from the end portion toward the other side, a housing protrusion extending from a bottom surface of the recessed portion toward the one side, a stepped portion on the one side away from the housing protrusion, and an extension extending from an opening toward the one side. The bearing holder includes a bearing protrusion extending radially outward, disposed in the recessed portion, and fixedly crimped between the housing protrusion and a side surface constituting the recessed portion. The lid is in axial contact with the stepped portion, and the extension is crimped onto the lid. Between the lid and the housing protrusion, an axial gap is formed, and between the housing protrusion and the side surface, a circumferential gap is formed. | 2021-11-11 |
| 20210351658 | ROTOR AND STATOR FOR HIGH SPEED AXIAL FLUX MACHINE - An axial flux permanent magnet high speed machine comprises an inner chamber for a flowable coolant, permanent magnet retention features. Also, a method of assembly with modular components and a number of structures and methods of stator bars and shoes are disclosed. | 2021-11-11 |
| 20210351659 | MOTOR AND BLOWER - A first elastic member is interposed between an outer peripheral surface of the circular core back portion and an inner wall surface of the second motor housing in a radial direction, both outer peripheral ends of the core back portion in the axial direction of the rotor are covered with the first elastic member, the first elastic member is assembled by being pinched between end surfaces of the first motor housing and the second motor housing which faces each other, and a second elastic member is assembled by being stacked between the bearing assembled in one of the pair of bearing housings and the bearing housing. | 2021-11-11 |
| 20210351660 | MOBILE ELECTRIC POWER GENERATION FOR HYDRAULIC FRACTURING OF SUBSURFACE GEOLOGICAL FORMATIONS - 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. | 2021-11-11 |
| 20210351661 | MOBILE ELECTRIC POWER GENERATION FOR HYDRAULIC FRACTURING OF SUBSURFACE GEOLOGICAL FORMATIONS - 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. | 2021-11-11 |
| 20210351662 | PORTABLE SELF-POWER-GENERATING APPARATUS - Proposed is a portable self-power-generating apparatus which has small size and is capable of charging a battery by realizing self-power generation with high efficiency in emergencies in which normal electricity supply is not available, such as a military operation, a refugee village, a disaster caused by earthquake or the like, an emergency situation on ships, or an outdoor activity, and which can be used in combination with various smart modules. | 2021-11-11 |
| 20210351663 | COMBINED FIXED FAN FOR DISC-TYPE MOTOR - A combined fixed fan for a disc-type motor includes a front fixing sheet ( | 2021-11-11 |
| 20210351664 | METHODS AND SYSTEMS FOR OIL COOLED ROTOR LAMINATIONS - Various methods and systems are provided for a system for cooling an electric motor that includes a rotor shaft rotatably mounted inside a motor housing, a lamination stack integrally connected to the rotor shaft, an encoder-end balance plate integrally connected to a first end of the lamination stack and a first end of the rotor shaft, an output-end balance plate integrally connected to a second end of the lamination stack and a second end of the rotor shaft, an oil supply coupled to the output-end balance plate and the rotor shaft. A closed-looped coolant pathway is formed between the transmission, the rotor shaft, the encoder-end balance plate, the lamination stack, and the output-end balance plate. | 2021-11-11 |
| 20210351665 | CANNED MOTOR DEVICE - A canned motor device includes a base unit, a motor, and front and rear covers. The base unit includes a side surface including inner and outer annular segments. The motor is mounted in the base unit and includes a flange. The rear cover is mounted in the base unit and includes a disk clamped sealingly between the flange and the inner annular segment. The front cover has an end abutting against the side surface and includes inner and outer surrounding segments. The disk and flange are clamped sealingly between the inner annular and surrounding segments. A first sealing element is disposed between the base unit and the disk. A second sealing element is disposed between the outer annular segment and the outer surrounding segment to form an airtight seal between the base unit and the front cover. | 2021-11-11 |
| 20210351666 | COOLING DEVICE FOR USE IN ALTERNATING MAGNETIC FIELDS, COIL ARRANGEMENT, ELECTRIC MACHINE, AND AIRCRAFT - A cooling device for use in alternating magnetic fields include an evaporator part defining a first volume for evaporating a cooling medium contained therein, the evaporator part being made of an electrically and magnetically non-conductive material, and a condenser part defining a second volume for condensing the cooling medium contained therein, the condenser part being in fluid connection with the first volume. | 2021-11-11 |
| 20210351667 | MOTOR STATOR AND MOTOR - The present disclosure provides a motor stator and a motor. The motor stator comprises a core; windings wound on the core; and a three-dimensional fitted winding inner groove embedding structure which is a cage-type structure having ribs and ends, the ribs being embedded in grooves between the windings, and the ends being connected to the ribs and cover ends of stator windings; both of the rib and the end of the inner groove embedding structure comprise nonmagnetic heat-conducting glue layers and a phase-change material layer interposed as an interlayer between the heat-conducting glue layers. According to the present disclosure, the heat of each part of the motor stator can be quickly conducted, so as to rapidly reduce the temperature, quickly eliminate the instantaneous temperature peak, and improve the temperature gradient equilibrium of each part. | 2021-11-11 |
| 20210351668 | STATOR FOR ROTARY FIELD MACHINE HAVING AXIAL HEAT DISSIPATION - A stator of an external rotor motor supports a plurality of excitation windings. At least one heat dissipation means is provided, for discharging heat in an axial direction. The heat dissipation means contacts the end face of at least one excitation winding or a potting compound or insulation enclosing the excitation winding and is also connected to a heat sink, in the form of the stator carrier, a cooling element and/or a housing, for removing the heat. | 2021-11-11 |
| 20210351669 | MAGNET STRUCTURE, ROTATIONAL ANGLE DETECTOR, AND ELECTRIC POWER STEERING DEVICE - A magnet structure is a magnet structure for a TMR element which is an MR element. The magnet structure includes a bonded magnet compact that has a first main surface facing the TMR element, and a second main surface on a side opposite to the first main surface; and a tubular member that supports the bonded magnet compact. The bonded magnet compact has a gate portion which is provided on the second main surface and includes a gate mark formed by performing injection molding. The gate portion is provided at a position overlapping a center on the second main surface when seen from the second main surface side. | 2021-11-11 |
| 20210351670 | POLYPHASED ELECTRICAL MACHINE WITH INTEGRATED POWER ELECTRONICS AND AN INTEGRATED COOLANT CIRCUIT - Polyphase electrical machine with n phases, n≥3, including a casing defining a longitudinal axis, a stator and a rotor including a mechanical drive shaft, the electrical machine being equipped with a power electronics and a coolant circuit and the power electronics is formed of n power electronic modules evenly distributed over an inner circumference of a longitudinal extension of the casing whose outer circumference is covered with a single annular DC bus decoupling capacitor electrically connected to the n power electronic modules, the coolant circuit including a plurality of U-shaped tubes with a tubular outgoing part extending over an entire length of the casing and including the longitudinal casing extension and a shorter tubular return part, extending over a casing length excluding the longitudinal casing extension. | 2021-11-11 |
| 20210351671 | GROUND STRUCTURE OF DRIVING MOTOR - A ground structure of a driving motor applied to an eco-friendly vehicle includes a rotation shaft rotatably supported by a bearing, a motor housing enveloping the bearing and the rotation shaft, a ground structure disposed in a direction in which the rotation shaft extends, and a cover having the ground structure installed therein and connected to the motor housing. In particular, the ground structure contacts the rotation shaft through a ground unit, thereby grounding the rotation shaft. | 2021-11-11 |
| 20210351672 | MAGNET SPACER AND MOTOR - A magnet spacer and a motor. The magnet spacer includes: a first engagement portion being configured to extend along a first axis; and a second engagement portion being configured to extend along a second axis and configured to be integrally formed with the first engagement portion; wherein a predetermined angle is formed between the first axis and the second axis; wherein the shape of the first engagement portion is configured to match the shape of a recess in a motor rotor; and wherein the side shape of the second engagement portion is configured to match the side shape of a motor magnet. | 2021-11-11 |
| 20210351673 | COIL WINDING APPARATUS AND COIL WINDING METHOD AND A COIL MANUFACTURING METHOD USING THEREOF - The coil winding apparatus is for manufacturing a coil by winding a wire rod around a winding core rotated by a rotating mechanism, wherein the winding core has a base plate and a plurality of winding pins erected on the base plate, and a circumferential groove into which a wire rod are put is formed on the periphery of the plurality of winding pins. The rotation mechanism is provided with a rotatable rotating plate, a drive mechanism for rotating the rotating plate, and a pair of columnar members erected on the rotating plate so as to put a rotation center with between a pair of the columnar members. An inner base plate is mounted to a tip of the pair of columnar members, and the coil winding apparatus is provided with an outer winding core moving mechanism. | 2021-11-11 |
| 20210351674 | ROLLER MOLDING METHOD FOR PRODUCING A SPIRAL STRUCTURE - The present application creates a roller molding method for producing a spiral structure or a coil, in particular a spiral structure for use in electric machines, wherein material is supplied between a first roller and a second roller running opposite thereto, wherein the first roller has first teeth, and the second roller has second teeth, said first and/or second teeth having tooth flanks with cavities for receiving the supplied material, wherein the teeth are designed and aligned such that the cavity of at least one tooth is at least temporarily delimited by the surface of a tooth of the other roller when the rollers are rotating such that the supplied material is molded between the teeth into a portion of the spiral structure or the coil. | 2021-11-11 |
| 20210351675 | COIL AND METHOD AND TOOL FOR PRODUCING COIL - The invention relates to a method for producing a coil ( | 2021-11-11 |
| 20210351676 | METHOD FOR PRODUCING AN ARRANGEMENT FOR A PLUG-IN COIL OF AN ELECTRIC MACHINE, GRIP APPARATUS AND MANUFACTURING - A method is presented for producing an arrangement for a plug-in coil of an electric machine, having the following steps: providing an arrangement of coil elements, which each are embodied as a rod-shaped coil element and are pre-aligned with one another; gripping the arrangement of coil elements by way of a grip apparatus, wherein the grip apparatus grips the arrangement of coil element by way of a first grip device in a first grip plane and by way of a second grip device in a second grip plane which is arranged beneath the first grip plane and at a distance therefrom; holding the arrangement of coil elements by way of the grip apparatus and inserting legs of the coil element into allocated grooves of a core; and releasing the grip apparatus from the arrangement of coil elements. | 2021-11-11 |
| 20210351677 | Method for Producing an Electric Motor, and Apparatus - A method for producing an electric motor having a coil includes providing a coil core where the coil core has a slot which extends in a longitudinal direction of the coil core. The method further includes introducing a slot insulation into the slot such that the slot insulation projects beyond the coil core in the longitudinal direction and forms a projection, introducing a conductor material layer by layer into the slot, and using a first layer of the conductor material to retain the slot insulation in a region of the projection during an introduction of a second layer of the conductor material into the slot. | 2021-11-11 |
| 20210351678 | Magnetic Motor - This Magnetic Motor is an appliance that uses magnetic force as energy source to bring about rotation movement, which can drive various machines such as generators and pumps. | 2021-11-11 |
| 20210351679 | IN-WHEEL WORKING DEVICE AND AUTOMOBILE INCLUDING THE SAME - Disclosed are an in-wheel working device and an automobile including the in-wheel working device. According to one aspect of the present disclosure, provided is an in-wheel working device including a rotation detection sensor coupled to a wheel bearing. The rotation detection sensor includes: a sensor stator coupled to an outer race of the wheel bearing; and a sensor rotor coupled to a hub of the wheel bearing. The sensor stator includes a printed circuit board (PCB) substrate having a surface on which a coil pattern made of a metal material is formed. | 2021-11-11 |
| 20210351680 | OSCILLATORY ACTUATOR - An oscillatory actuator | 2021-11-11 |
| 20210351681 | APPARATUS FOR MONITORING AND/OR CONTROLLING MECHANICAL EQUIPMENT - There is described a system comprising mechanical equipment and an apparatus for monitoring and/or controlling the mechanical equipment. The mechanical equipment vibrates at a frequency f | 2021-11-11 |
| 20210351682 | ELECTRIC ACTUATOR - An electric actuator comprises a housing, an electric motor comprising a wound stator and a rotor mounted on a shaft, a printed circuit for powering the stator, an intermediate plate, a mechanical reduction gear driven by the rotor and comprising toothed wheels mounted on axes, a cover and two centering pins. The motor is housed in a cavity of the housing, which guides one end of the shaft. The printed circuit is located above the stator. The intermediate plate is located above the circuit. The cover is located above the intermediate plate. The reduction gear is housed in a cavity of the cover, which guides one end of each axis. The intermediate plate guides the other end of the shaft and of the axes. Three pairs of centering holes receive the centering pins. The housing comprises a single sealing gasket positioned at the interface between the housing and the cover. | 2021-11-11 |
| 20210351683 | ENHANCED ELECTRIC MOTOR USING PLANETARY GEAR - A planetary gear type enhanced motor comprises a stator with stator teeth and a rotor with rotor teeth engaged with each other, wherein the stator and the rotor are arranged eccentrically, and an output shaft is coaxially arranged on a central shaft of the stator and connected with a central shaft of the rotor through a transmission piece; and the two sides of the teeth of the stator teeth and the rotor teeth are provided with magnets, when the rotor teeth are engaged with the stator teeth, the magnetism and the magnetic poles of the magnets are changed to generate magnetic force to drive the rotor to revolve around the central shaft of the stator while rotating around the central shaft of the rotor, so that the transmission piece converts the motion of the rotor into the power of the output shaft. | 2021-11-11 |
| 20210351684 | POWER CONVERSION APPARATUS - A power conversion apparatus includes: a rotating electric machine that has a winding; an inverter that has a series-connection body of an upper arm switch and a lower arm switch; and a capacitor that is connected in parallel to the series-connection body. The power conversion apparatus includes: a connection path that, in a first storage battery and a second storage battery that are connected in series, electrically connects the winding with both a negative-electrode side of the first storage battery and a positive-electrode side of the second storage battery; and a control unit that controls switching of the upper arm switch and the lower arm switch such that a current flows between the first storage battery and the second storage battery through the inverter, the winding, and the connection path. | 2021-11-11 |
| 20210351685 | CONTROLLER WITH FREQUENCY REQUEST CIRCUIT - A controller comprising a regulation circuit and a frequency request circuit. The regulation circuit configured to receive a signal representative of an output and a reference representative of a desired value of the output, the regulation circuit configured to output a regulation signal in response to a difference between the signal and the reference. The frequency request circuit configured to receive the regulation signal and outputs an increment signal representative of a request to increase a switching frequency and a decrement signal representative of a request to decrease the switching frequency in response to the regulation signal. The frequency request circuit configured to assert the increment signal when the output is less than the desired value for a duration longer than a first period and assert the decrement signal when the output is greater than the desired value for a duration longer than a second period. | 2021-11-11 |
| 20210351686 | CIRCUIT TO TRANSFER A SIGNAL BETWEEN DIFFERENT VOLTAGE DOMAINS AND CORRESPONDING METHOD TO TRANSFER A SIGNAL - A circuit includes a current path and a negative bootstrap circuitry coupled to the current path. The current path is coupled between a floating voltage and a reference ground, and includes a current generator coupled through a resistor to the floating voltage at a first node of the current generator. The current generator is controlled by a pulse signal. The negative bootstrap circuitry includes a pump capacitor coupled to a second node of the current generator and to the reference ground. The pump capacitor is configured to provide a negative voltage at the second node of the current generator based on the pulse signal. | 2021-11-11 |
| 20210351687 | INDUCTOR CURRENT RECONSTRUCTION CIRCUIT, POWER CONVERTER AND INDUCTOR CURRENT RECONSTRUCTION METHOD THEREOF - A method of inductor current reconstruction for a power converter can include: acquiring at least one of a current that represents a current flowing through a main power transistor, and a current that represents a current flowing through a rectifier transistor, in order to generate a switching current sampling signal in the power converter; and generating an inductor current reconstruction signal representing an inductor current in one complete switching cycle according to the switching current sampling signal and an inductor voltage signal representing a voltage across an inductor in the power converter. | 2021-11-11 |
| 20210351688 | GLITCH IMMUNE NON-OVERLAP OPERATION OF TRANSISTORS IN A SWITCHING REGULATOR - A circuit includes a first gate control circuit including a first time delay element and first and second logic gates. The first time delay element and first and second logic gates receive a pulse width modulation (PWM) signal. The first logic gate includes a first output and second logic gate includes a second output. The circuit also includes a second gate control circuit that includes a second time delay element and third and fourth logic gates. The second time delay element includes an input coupled to the output of the first time delay element. The third logic gate includes a third output, and the fourth logic gate includes a fourth output. A first gate driver receives a first signal from one of the first or third outputs. A second gate driver receives a second signal from one of the second or fourth outputs. | 2021-11-11 |
| 20210351689 | OVER-MODULATION PULSE WIDTH MODULATION WITH MAXIMUM OUTPUT AND MINIMUM HARMONICS - A power system includes an inverter that convert a DC voltage to a three-phase alternating current (AC) voltage. One or more switch drivers generate a pulse width modulation (PWM) drive signal that drives the inverter. The power system further includes a controller that determines a modulation index associated with the PWM drive signal and injects a harmonic into the PWM drive signal in response to the modulation index exceeding a modulation index threshold value. | 2021-11-11 |
| 20210351690 | TRANSMISSION AND DISTRIBUTION SYSTEM WITH ELECTRIC SHOCK PROTECTION FUNCTION AND METHOD OF OPERATING THE SAME - A transmission and distribution system with electric shock protection function includes a transmitting terminal and a receiving terminal. The transmitting terminal includes a switch, a current measurer, a signal generator, and a controller. The receiving terminal includes a filter. The switch is coupled to a first DC power and a transmission line. The current measurer is coupled to the transmission line, and measures a current of the transmission line and provides a current signal. The signal generator provides a disturbance signal to the transmission line. The controller receives the current signal and controls the switch. If the controller determines that the current signal contains the disturbance signal, the controller turns off the switch. | 2021-11-11 |
| 20210351691 | MULTI-OUTPUT POWER SUPPLY WITH DUAL POWER-ON CONTROL - According to an aspect, a power supply is provided. The power supply includes a plurality of voltage converters including a first voltage converter and one or more other voltage converters. The power supply also includes a power supply control configured to perform a plurality of operations including enabling the first voltage converter during a start-up mode of operation, monitoring and regulating an output of the first voltage converter, reconfiguring the power supply control to enable the one or more other voltage converters based on determining that the output of the first voltage converter meets a regulation threshold, and transitioning from the start-up mode of operation to a regular mode of operation based on enabling the one or more other voltage converters to output one or more regulated voltages by the power supply. | 2021-11-11 |
| 20210351692 | DC-DC CONVERTER - ADC-DC converter includes a switch element connected to an input end, a coupling capacitor connected to the switch element at a first node, a first inductor connected to the coupling capacitor at a second node and connected to an output end at a third node, a control circuit configured to control the switch element, a second inductor connected to the first node and a ground, a first diode connected to the second node and the ground, a smoothing capacitor connected to the third node and the ground, a comparator, a second diode connected to the second node and the comparator to supply a power voltage powering the comparator, and an output capacitor connected to the second diode and the ground. The comparator is configured to compare a voltage at the output end with a reference voltage so as to output a comparison result to the control circuit. This DC-DC converter operates stably. | 2021-11-11 |
| 20210351693 | HIGH ENERGY EFFICIENCY SWITCHED-CAPACITOR POWER CONVERTER - A high energy efficiency switched-capacitor power converter includes the transmission gates T | 2021-11-11 |
| 20210351694 | CHARGE ADJUSTMENT TECHNIQUES FOR SWITCHED CAPACITOR POWER CONVERTER - Various embodiments of charge adjustment techniques for a switched capacitor power converter are described. In one example embodiment, briefly, charge adjustment techniques may include a technique to operate a charge pump so as to reduce electrical transient effects that may occur during charge pump transition operation between a first steady state charge pump operation with respect to a first configuration gain mode and a second steady state charge pump operation with respect to a second configuration gain mode. In some instances, electrical transient effects may occur during charge pump transition operation, at least in part, from a selectable adjustment of charge pump configuration gain with respect to a configuration gain mode. | 2021-11-11 |
| 20210351695 | RESONANT SWITCHING POWER CONVERTER - A resonant switching power converter includes: capacitors; switches; at least one charging inductor; and at least one discharging inductor. In a charging process, by switching the switches, the capacitors and the charging inductor form a single charging path between an input voltage and an output voltage, wherein a turned-ON time point and a turned-OFF time point of the switches are synchronous with a start time point and an end time point of a positive half wave of a charging resonant current. In a discharging process, by switching the switches, each capacitor and the discharging inductor are connected in series between the output voltage and a ground voltage level, whereby a plural discharging paths are formed, wherein a turned-ON time point and a turned-OFF time point of the switches in the discharging process are synchronous with a start time point and an end time point of a positive half wave of a discharging resonant current of the discharging process. | 2021-11-11 |
| 20210351696 | ON-CHIP DUAL-SUPPLY MULTI-MODE CMOS REGULATORS - A method, an apparatus, and a computer program product are provided. The apparatus may be a regulator circuit. The regulator circuit includes a first voltage regulator to regulate a first input voltage to the first voltage regulator, the first voltage regulator including a P-type metal-oxide-semiconductor (PMOS), a second voltage regulator to regulate a second input voltage to the second voltage regulator, and a switch circuit to selectively activate at least one of the first voltage regulator or the second voltage regulator. In one aspect, the second voltage regulator includes an N-type metal-oxide-semiconductor (NMOS). In one aspect, the second voltage regulator comprises a two-stage operational transconductance amplifier (OTA) circuit. In an aspect, the first voltage regulator is coupled to the second voltage regulator. | 2021-11-11 |
| 20210351697 | ACCURATE LOAD CURRENT SENSING APPARATUS AND METHOD - A Ton/2 generator retrofits a digital tracking algorithm to an analog Constant-On-Time (COT) Controller to enable fast sensing. The Ton/2 generation is cognizant of the delay between high-side switch (HSFET) on generation and the actual turn-on time of the HSFET so that there is no deviation of sampling point, and current is reported with high accuracy. The digital tracking algorithm automatically takes higher steps during load transients to enable faster tracking and scales the measured current (Ipeak/2) based on a discontinuous conduction mode (DCM) period for DCM current reporting. | 2021-11-11 |
| 20210351698 | TRANSFORMERLESS PARTIAL POWER CONVERTER (PPC) FOR THE DC-DC STAGE OF RAPID-CHARGING STATIONS FOR ELECTRIC VEHICLES (EV) - Described is a new partial power converter (PPC) for the DC-DC stage of rapid-charging stations for electric vehicles (EV). The proposed converter manages only a fraction of the total power delivered from the grid to the battery, which increases the general efficiency of the system and the power density while potentially reducing the cost of the charger. The proposed topology is based on a switched capacitor between the AC terminals of a bridge converter H and does not require high-frequency isolation transformers in order to provide a source of controllable voltage between the CC link and the battery. The proposed concept can be implemented by using interposed power cells, which can improve energy quality, reduce the size of the inductor, and allow scalability for chargers of higher nominal power. | 2021-11-11 |
| 20210351699 | CHOPPER CIRCUIT - This chopper circuit | 2021-11-11 |
| 20210351700 | CURRENT BOOST FOR WIRELINE POWERED TOOLS - A current booster includes a buck-type converter including an input node, an output node, an inductor connected in series between the input and output nodes, a first capacitor connecting between the output node and ground, a second capacitor connecting between the input node and ground, a first switch connected in series between the input node and the inductor, and a second switch connecting a node between the first switch and the inductor to ground. A controller is operatively connected to control switching of the first and second switches. The controller includes logic configured to drive switching of the first and second switches in a first mode to maintain voltage at the output node if current at the input node is below a set point, and in a second mode to maintain constant current at the input node if current at the input node reaches the set point. | 2021-11-11 |
| 20210351701 | METHOD FOR DETECTING LOW IMPEDANCE CONDITION AT OUTPUT OF ELECTRICAL CONVERTER, CONTROL UNIT, COMPUTER PROGRAM PRODUCT AND ELECTRICAL CONVERTER - A method for detecting low impedance condition at an output ( | 2021-11-11 |
| 20210351702 | FLYBACK CONVERTER, CONTROL CIRCUIT THEREOF, AND ASSOCIATED CONTROL METHOD - A flyback converter includes a transformer, a sensing impedance, a switch and a control circuit. The sensing impedance is coupled between the transformer and an output terminal of the flyback converter. The switch is coupled to the transformer. The transformer is charged when the switch activates. The transformer is discharged when the switch deactivates. The control circuit is arranged to detect if the sensing impedance is bypassed, and further arranged to adjust an operating frequency of the switch when the sensing impedance is bypassed. | 2021-11-11 |
| 20210351703 | SWITCH-MODE POWER SUPPLIES INCLUDING THREE-LEVEL LLC CIRCUITS FOR LOW LINE AND HIGH LINE OPERATION - A switch-mode power supply includes a pair of input terminals for receiving an alternating current (AC) or direct current (DC) voltage input from an input power source, a pair of output terminals for supplying a direct current (DC) voltage output to a load, and at least four switches coupled in a three-level LLC circuit arrangement between the pair of input terminals and the pair of output terminals. The power supply also includes a voltage doubler power factor correction (PFC) circuit coupled between the pair of input terminals and the three-level LLC circuit, and a control circuit coupled to operate the at least four switches to supply the DC voltage output to the load. | 2021-11-11 |
| 20210351704 | POWER CONVERTER AND IMAGE PROCESSING APPARATUS - A power converter includes a transformer including first and second windings, a switching circuit switching voltages applied to the first winding, a power supply circuit rectifying and smoothing a current in the second winding and generating a DC voltage, an adjustment circuit adjusting the DC voltage according to an operation mode including first and second modes in which the DC voltage is adjusted to first and second voltages, the second voltage less than the first voltage, and a protection circuit including first and second Zener diodes and a switch and stopping output of the adjusted voltage. A cathode of the first diode is connected to the supply circuit, and an anode of the first diode is connected to a cathode of the second diode and the switch, and the switch is connected in parallel to the second diode and is turned on in the second mode. | 2021-11-11 |
| 20210351705 | Flyback Power Switch Structure for Bridgeless Rectifier - The present invention discloses a flyback power switch structure for bridgeless rectifier, comprising a main transformer, a primary side circuit, a secondary side circuit, and a feedback control circuit. Said main transformer comprises primary coil and secondary coil. Said primary side circuit is connected to the input AC power supply and the primary coil of main transformer, and is provided with a first switch component, a second switch component, a third switch component, and a fourth switch component. Said secondary side circuit is connected to the secondary coil of said main transformer, generating output voltage. Said feedback control circuit is connected to the secondary side circuit and the first, second, third and fourth switch components of primary side circuit, comparing phase signals according to the feedback signals and the first and second terminal voltages of input AC power supply to control the actuation of the first, second, third and fourth switch components. Thereby, the present invention can increase the efficiency and can be easily miniaturized. | 2021-11-11 |
| 20210351706 | POWER SUPPLY DEVICE FOR ELIMINATING RINGING EFFECT - A power supply device for eliminating the ringing effect includes a transformer, an output stage circuit, a power switch element, a pulse width modulation integrated circuit, and a control circuit. The transformer includes a main coil, a secondary coil, and an auxiliary coil. A leakage inductor is built in the transformer. The main coil receives an input voltage through the leakage inductor. The secondary coil generates an induced voltage. The output stage circuit generates an output voltage according to the induced voltage. A first parasitic capacitor is built in the power switch element. The control circuit includes an auxiliary inductor coupled to the auxiliary coil. The control circuit monitors the power switch element. If the power switch element is switched from an enable state into a disable state, the control circuit will couple the auxiliary inductor to the main coil and the leakage inductor of the transformer. | 2021-11-11 |
| 20210351707 | POWER SUPPLY CIRCUIT, CORRESPONDING DEVICE AND METHOD - An embodiment provides a circuit including a transformer having a primary winding coupled to an input port configured to receive an input voltage and a secondary winding configured to provide an output voltage at an output port, controller circuitry configured to switch on and off a current through the primary winding so that energy is transferred to the secondary winding while switching and supply circuitry connected to the controller circuitry, wherein the supply circuitry is coupled to an auxiliary winding of the transformer and configured to provide a supply voltage for the controller circuitry. The controller circuitry is further configured to: transition to a burst mode to switch on and off the current through the primary winding in first bursts, wherein the first bursts are separated by intervals during which switching on and off the current through the primary winding of the transformer by the first bursts is discontinued and provide second bursts during the intervals in order to keep the supply voltage of the controller circuitry between a lower bound value and an upper bound value while the output voltage ramps down to a requested valley value or provide second bursts during the intervals after reaching a timeout limit in order to provide the supply voltage to the controller circuitry while the output voltage ramps down to a requested valley value. | 2021-11-11 |
| 20210351708 | METHOD FOR CONTROLLING A SERIES RESONANT CONVERTER - The invention relates to a method for controlling a series resonant converter ( | 2021-11-11 |
| 20210351709 | RESONANT CONVERTER CONTROLLER CIRCUIT FOR CONTROLLING RESONANT CONVERTER CONVERTING INPUT DC VOLTAGE INTO DC VOLTAGE - A resonant converter controller is provided. Each period in drive control has a drive time interval and a pause time interval for driving/pausing the resonant converter. The resonant converter controller circuit includes a first oscillating means for generating a clock signal, a second oscillating means for generating a sawtooth wave signal, a third oscillating means for generating a rectangular wave signal, comparison means for outputting a comparison signal indicating the drive time interval, by comparing the sawtooth wave signal with a threshold signal, which is generated based on a difference voltage between an output voltage of the resonant converter and a target voltage, and which indicates a ratio of the drive time interval to the pause time interval, and a logical operation means for generating a drive control signal based on the comparison signal and the rectangular wave signal to drive and control the resonant converter. | 2021-11-11 |
| 20210351710 | VOLTAGE MODE CONTROLLER APPLIED TO SHORT-CIRCUITED PROTECTION OF A POWER CONVERTER AND OPERATIONAL METHOD THEREOF - A voltage mode controller applied to short-circuited protection of a power converter includes gate control signal generation circuit and control circuit. The control circuit generates control signal to make the gate control signal generation circuit generate predetermined signal to power switch of the primary side of the power converter before the power converter starts up and when supply voltage is greater than first reference voltage, enables short-circuited protection after predetermined enabling period of the predetermined signal if detection voltage is less than second reference voltage during the predetermined enabling period. The short-circuited protection makes the power converter not start up, and after the power converter starts up, the short-circuited protection is enabled to turn off the power converter if the detection voltage is less than the second reference voltage for de-bounce time and compensation voltage is greater than third reference voltage. | 2021-11-11 |
| 20210351711 | METHOD AND APPARATUS FOR CONTINUOUS CONDUCTION MODE OPERATION OF A MULTI-OUTPUT POWER CONVERTER - Methods and apparatus for continuous conduction mode operation in multi-output power converters are described herein. During a switching cycle, secondary current may be delivered via a diode to a secondary output. Prior to beginning a subsequent switching cycle, a diverting current may be provided to a lower voltage secondary output on a parallel path. In this way diode current may be reduced to substantially zero prior to the subsequent switching cycle. | 2021-11-11 |
| 20210351712 | Dual active bridge with distributed inductance - A dual active bridge includes a first converter arranged on a primary side of the dual active bridge, a second converter arranged on a secondary side of the dual active bridge, a high frequency transformer that has two windings and that operatively connects the first converter to the second converter, and a plurality of inductors, which are arranged along the legs on one of the two windings of the high frequency transformer, and which are split between the legs of that winding. In one embodiment, the plurality of inductors are split between the legs of the winding disposed on the secondary side of the dual active bridge. The plurality of inductors may consist of two inductors, of which a first one is arranged of the first leg of the winding and a second one is arranged on the second leg of the winding. | 2021-11-11 |
| 20210351713 | MULTILEVEL RESONANT DC-DC CONVERTER - Resonant DC-DC converters use a switching network to step a single DC voltage up to a working DC level using a resonant tank. However, high voltage DC power supply systems, for example, those used to power X-ray sources, are increasingly being integrated into smaller form factors, and it is becoming attractive to be able to make use of multiple DC-DC power supplies to power such X-ray sources. The present invention provides a topology for a resonant DC-DC converter, a DC electrical supply system, and method of operating a DC-DC resonant converter. The proposed topology uses a switching network to connect multiple DC power supplies to the resonant tank, to enable a more flexible provision of input power. | 2021-11-11 |
| 20210351714 | A METHOD OF OPERATING A POWER GENERATION SYSTEM - This invention concerns a method of controlling a power converter system | 2021-11-11 |
| 20210351715 | Isolated Power Converter And Hydrogen Production System - An isolated power converter and a hydrogen production system are provided. An electrical connection structure in the isolated power converter includes N secondary winding output bus bars, N rectifier circuit input bus bars, and a positive-negative bus bar, where N is greater than or equal to 1. A secondary winding may include M tapping points, and the secondary winding output bus bar and the rectifier circuit input bus bar that correspond to the secondary winding each include M copper bars that are insulated and stacked. The M tapping points of the secondary winding overlap the M copper bars of the secondary winding output bus bar at input ends of the M copper bars, respectively. The positive-negative bus bar includes two copper bars that are insulated and stacked. | 2021-11-11 |
| 20210351716 | ELECTRICAL WIRING DEVICE FOR DELIVERING POWER TO MULTIPLE MOBILE DEVICES - An electrical wiring device for delivering power to multiple mobile devices including: a housing having a faceplate; a first power delivery port accessible through the faceplate; a second power delivery accessible through the faceplate; an AC/DC converter disposed in the housing and configured to receive an AC signal from a connection to a source of AC mains power and to output a DC signal; a first DC/DC converter disposed in the housing and configured to receive the DC signal and provide a first DC output signal having a first power to a first power delivery port; a second DC/DC converter disposed in the housing and configured to receive the DC signal and provide a second DC output signal having a second power to a second power delivery port; wherein the first DC output signal is different from the second DC output signal. | 2021-11-11 |
| 20210351717 | Efficient Switching for Converter Circuit - An apparatus may include a first switch leg connected between a first input terminal and a first output terminal, the first switch leg comprising serially connected switches. The apparatus may also include a second switch leg connected between a second input terminal and the first output terminal, the second switch leg comprising serially connected switches. The apparatus may further include a third switch leg connected between an input voltage midpoint and the first output terminal. A control circuit may control the first switch leg, the second switch leg and the third switch leg. | 2021-11-11 |
| 20210351718 | POWER SUPPLY CIRCUIT AND PHOTOVOLTAIC POWER GENERATION SYSTEM COMPRISING SAME - A power supply circuit and a photovoltaic power generation system comprising same. The power supply circuit utilizes the condition that a voltage output by discharge of a capacitor is a direct-current voltage which decreases with time, a CCFL conversion circuit is connected behind the capacitor, the CCFL conversion circuit converts the input direct-current voltage which decreases which time into a sinusoidal alternating-current for output. Since the CCFL conversion circuit operates in an open-loop mode, a peak-to-peak value of the sinusoidal alternating-current output by the CCFL conversion circuit is in direct proportion to an operating voltage of the CCFL conversion circuit, the voltage decreases with time, that is, the peak-to-peak valve of the sinusoidal alternating-current output by the CCFL conversion circuit decreases with time, thus, an effective value of the sinusoidal alternating-current decreases with time, and an attenuated sinusoidal alternating-current voltage is obtained. | 2021-11-11 |
| 20210351719 | SWITCHING POWER CONVERSION CIRCUIT AND SWITCHING CIRCUIT - A switching power conversion circuit includes a conversion capacitor, a capacitive power conversion circuit, an inductor, an inductive power conversion circuit and a switching control circuit. The capacitive power conversion circuit switches the conversion capacitor periodically according to a switching control signal generated by the switching control circuit, to generate a first intermediate voltage and a first proportional voltage in a promptly rising mode and to generate a second intermediate voltage and a second proportional voltage in a promptly falling mode. In the promptly rising mode, a rising slope of an inductor current is determined by a difference between a high level of the first proportional voltage and an output voltage. In the promptly falling mode, a falling slope of the inductor current is determined by a difference between a low level of the second proportional voltage and the output voltage. | 2021-11-11 |
| 20210351720 | NOVEL TRIBOELECTRIC NANOGENERATOR - The present disclosure relates to a novel triboelectric nanogenerator comprising a novel polyvinyl alcohol (PVA)-based biocompatible polymer. The novel polyvinyl alcohol-based biocompatible polymer comprises a blending product of a mixture comprising a polyvinyl alcohol, a gelatin, and an optional salt. The polyvinyl alcohol-based biocompatible polymer is a substantially transparent film. | 2021-11-11 |
| 20210351721 | VARIABLE RESISTANCE BRAKE CASTER ASSEMBLY - A brake mechanism for a brake caster is disclosed. In various embodiments, the brake mechanism includes a roller cylinder having a hollow interior and an inner cylindrical surface; a brake shaft disposed within the hollow interior of the roller cylinder and having an outer cylindrical surface; a piezoelectric disk disposed within the hollow interior of the roller cylinder; and a rotor disk disposed adjacent the piezoelectric disk. | 2021-11-11 |
| 20210351722 | COMBINED HEATING AND POWER MODULES AND DEVICES - Various disclosed embodiments include combined heating and power modules and combined heat and power devices. In an illustrative embodiment, a combined heat and power device includes a heating system including: at least one burner; at least one igniter configured to ignite the at least one burner; a fluid motivator assembly including an electrically powered prime mover; and a heat exchanger fluidly couplable to the fluid motivator assembly. At least one alkali metal thermal-to-electricity converter (AMTEC) has a high pressure zone and a low pressure zone, the high pressure zone being thermally couplable to the at least one burner, the low pressure zone being thermally couplable to the heat exchanger. | 2021-11-11 |
| 20210351723 | System for Converting Electromagnetic Radiation to Electrical Energy Using Metamaterials - Spectral tuning of heat source to emit radiation at a desired frequency or frequency band is accomplished using metamaterials. The metamaterials include a structured geometry having holes with dimensions and spacing chosen such that the resulting surface will emit radiation in the desired spectrum. A collector can be made of a similar metamaterial or antenna array to detect the emitted radiation and transfer it to a converter device that converts the detected radiation to electricity. Embodiments also provide efficient coupling to the converter device for energy harvesting. Cooling of the converter devices can be accomplished using a cooling sink or deep space. | 2021-11-11 |
| 20210351724 | MOTOR STARTER APPARATUS USING INDEPENDENTLY RACKABLE REDUCED VOLTAGE SOFT STARTER ASSEMBLY - A motor starter apparatus includes an enclosure, a bypass contactor configured to be installed in the enclosure and configured to selectively couple a power source to a motor, and a reduced voltage soft starter (RVSS) circuit assembly (e.g. a wheeled truck) configured to be installed in the enclosure, to be coupled to the power source and to apply a variable voltage to the motor. The bypass contactor is configured to preserve a connection of the bypass contactor to the power source and the motor when the RVSS circuit assembly is removed from the enclosure. | 2021-11-11 |
| 20210351725 | SYSTEM AND METHOD FOR REVERSE BATTERY PROTECTION IN REGENERATIVE MOTOR DRIVE - A system and method for facilitating regenerative charging of a battery by a motor drive when the battery is properly physically connected to a drive circuitry and blocking current when the battery is improperly physically connected. The system includes drive circuitry, a battery and motor drive connected to the drive circuitry, an N-channel MOSFET connected to a high side of the drive circuitry, and a FET controller including a charge pump connected to a gate terminal of the N-channel MOSFET. When the battery is properly physically connected to the drive circuitry, the charge pump is switched on and the N-channel MOSFET allows reverse current to flow from the motor drive to recharge the battery. When the battery is improperly physically connected to the drive circuitry, the charge pump is switched off and the N-channel MOSFET blocks current from flowing and damaging the battery. | 2021-11-11 |
| 20210351726 | INTERPOLATION CIRCUIT AND MOTOR DRIVING CIRCUIT - An interpolation circuit comprising: a phase shift circuit, configured to generate a plurality of phase shift signals; a first multiplexer configured to receive at least portion of the phase shift signals; a first comparator, comprising a first positive input terminal and a first negative input terminal; a second comparator, comprising a second positive input terminal and a second negative input terminal; a first state control circuit, configured to control the first multiplexer to switch to a different state according to a first comparing result and a second comparing result, wherein the first multiplexer outputs different ones of the phase shift signals in different states; and a first voltage level compensating circuit, configured to pull up or pull down a first output signal from the first output terminal or a second output signal from the second output terminal when the state of the first multiplexer changes. | 2021-11-11 |
| 20210351727 | ENCODERLESS MOTOR WITH IMPROVED GRANULARITY AND METHODS OF USE - A DC electric motor having a stator mounted to a substrate, the stator having a coil assembly having a magnetic core, a rotor mounted to the stator with permanent magnets distributed radially about the rotor, the permanent magnets extending beyond the magnetic core, and sensors mounted to the substrate adjacent the permanent magnets. During operation of the motor passage of the permanent magnets over the sensors produces a substantially sinusoidal signal of varying voltage substantially without noise and/or saturation, allowing an angular position of the rotor relative the substrate to be determined from linear portions of the sinusoidal signal without requiring use of an encoder or position sensors and without requiring noise-reduction or filtering of the signal. | 2021-11-11 |
| 20210351728 | Position Observer for Electrical Machines - A control system for an electrical motor comprises a rotor, a stator having a plurality of phase windings, and an inverter for applying voltage to the plurality of phase windings by connecting individual phase windings to a first or second voltage level. The control system is configured to measure a first rate of change of current in a first phase winding, of said plurality of phase windings, connected to the first voltage level, to measure a second rate of change of current in a second, different phase winding connected to the first voltage level, and to calculate a difference between the first and second rate of change of current. The control system is further configured to use the calculated difference to obtain data related to a position of the rotor. | 2021-11-11 |
| 20210351729 | METHOD FOR STARTING A PERMANENT MAGNET SYNCHRONOUS ELECTRIC MOTOR - A method for starting a permanent magnet synchronous electric motor comprising a rotor and a stator comprising coils connected respectively to a plurality of phases and a conversion circuit connecting the plurality of phases to a power supply source in order to control the rotation of the rotor of the synchronous motor, the conversion circuit comprising a converter supplying power to a DC-AC converter comprising a plurality of controllable transistors for controlling the rotation of the rotor according to a plurality of successive control phases, the method comprising: ∘ a step of controlling the transistors of the DC-AC converter according to a control table associating each control phase with a configuration of the transistors so as to determine an acceleration ramp of the rotor of the motor, ∘ a step of determining an electrical angle A based on a predetermined acceleration ACC, and ∘ a step of determining a control phase change signal Q if the electrical angle A is greater than a predetermined threshold angle A | 2021-11-11 |
| 20210351730 | ACTIVE DAMPING OF MECHANICAL DRIVETRAIN OSCILLATIONS USING GENERATOR VOLTAGE REGULATOR - Apparatus and associated methods relate to active damping of mechanical oscillations of a synchronous generator's drivetrain by modulating an excitation signal provided to the synchronous generator in proper phase relation with detected mechanical oscillations so as to dampen these oscillations. The excitation signal includes a superposition of a voltage-regulation signal and an active-damping signal. The voltage-regulation signal is configured to regulate an output voltage of electrical power provided by the synchronous generator, and the active-damping signal is configured to provide active damping to the drivetrain of the mechanical system that includes the synchronous generator. The active-damping signal is generated by detecting mechanical oscillations of the drivetrain, filter such detected mechanical oscillations such that the active-damping signal has a proper phase relationship with the mechanical oscillations over a predetermined range of frequencies. This proper phase relationship is maintained over the range of frequencies using a second order lag/lead filter. | 2021-11-11 |
| 20210351731 | AUXILIARY POWER UNIT GENERATOR SYSTEMS - An auxiliary power unit (APU) generator system for an APU can include a doubly-fed induction generator (DFIG) configured to be operatively connected to an APU to be turned by an APU and to have an output frequency that is a function of an excitation frequency and an APU speed. The system can include a generator control module configured to control the excitation frequency to the DFIG to output a substantially constant frequency with changing APU speed to supply the substantially constant frequency to a load. | 2021-11-11 |
| 20210351732 | DEVICES, SYSTEMS, AND METHODS FOR SELF-HEATING BATTERIES - At least one embodiment is directed to a system including a motor, a battery that provides power to the motor, and control circuitry that provides one or more first current pulses to the motor using power from the battery to cause one or more second current pulses in the battery that heat the battery to a desired temperature while maintaining zero torque in the motor. | 2021-11-11 |
| 20210351733 | PULSED ELECTRIC MACHINE CONTROL - A variety of methods, controllers and electric machine systems are described that facilitate pulsed control of electric machines to improve the energy efficiency of the electric machine when conditions warrant. Selected transitions between pulsing output levels are controlled to provide a cubic or higher order transition torque profile. In various implementations, cubic, quintic or higher order transition profiles are use. The use of such transition torque profiles can improve NVH characteristics of the electric machine while providing energy efficient pulse transitions. | 2021-11-11 |
| 20210351734 | DEVICE FOR CONTROLLING AN INVERTER - In an inverter system ( | 2021-11-11 |
| 20210351735 | MOBILE GENERATOR DEVICE AND COOLING SYSTEM - The present invention relates to a mobile generator device ( | 2021-11-11 |
| 20210351736 | CLAMP ASSEMBLY FOR SOLAR TRACKER - In an example, the solar tracker has a clamp assembly configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first and second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure, a torque tube suspending on the pivot device and aligned within an opening of the support, and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction. | 2021-11-11 |
| 20210351737 | ROTATABLE AIRFOIL STRUCTURE WITH INTEGRATED SOLAR PHOTOVOLTAIC ELECTRICITY GENERATION - A rotatable solar tower with an airfoil structure is described. Solar panels are stacked vertically to create the skin of an airfoil. By installing the airfoil vertically so that its longitudinal axis is perpendicular to the ground and allowing the airfoil to rotate freely 360 degrees into the wind, the horizontal forces on the airfoil from the wind are significantly reduced compared to a round cylinder with the same diameter. This allows the airfoil structure to be lightweight in design while spanning several hundred feet in height and producing several hundred kilowatts of electrical power on a small footprint of land. The solar panels may have 3-axes of rotation, i.e., rotation of the tower about the base, horizontal extension of the solar frame assemblies and vertical extension of the solar panels. Wind turbines may also be provided in or on the tower. | 2021-11-11 |
| 20210351738 | MOUNTING BRACKET - A mounting bracket assembly comprising may include an upper region with flat portions on either end that interface with a photovoltaic (PV) module and a lower portion in between the flat portions, and a central portion at least partially surrounding a hole shaped to accommodate a torsion beam. The mounting bracket assembly may also include side portions extending from the ends of the upper region to below the hole shaped to accommodate the torsion beam, and a first outer lining along a periphery of the mounting bracket assembly. The mounting bracket assembly may also include a second outer lining along the hole shaped to accommodate the torsion beam, and multiple ribs extending between the first outer lining and the second outer lining. | 2021-11-11 |
| 20210351739 | Modular System for Cleaning Solar Panels - The invention refers to a modular system ( | 2021-11-11 |
| 20210351740 | FLUID DRIVEN SOLAR PANEL CLEANING SYSTEM - A system for cleaning solar panels (photo-electric and/or water heating etc.) is driven by fluid driven motor (water and/or air driven motor) such as a piston motor or a vane motor. Some or all of the outlet water/air from the motor is used for cleaning the panels. The motor preferably also operates a cleaning mechanism, such as a rotating and or linear brush arrangement. The motor, gear system and/or components may be made from plastic. Optionally, a cleaning device travels along the edges of panels, optionally without requiring an additional rail structure. The cleaning device optionally includes a trailing water/air supply hose. In some embodiments, electrical components of the cleaning device are powered by an internal power supply. Control is optionally via an electrically actuated valve, a timer (for example a real time clock), a wireless receiver and/or a controller. | 2021-11-11 |
| 20210351741 | Safety Switch for Photovoltaic Systems - Various implementations described herein are directed to a methods and apparatuses for disconnecting, by a device, elements at certain parts of an electrical system. The method may include measuring operational parameters at certain locations within the system and/or receiving messages from control devices indicating a potentially unsafe condition, disconnecting and/or short-circuiting system elements in response, and reconnection the system elements when it is safe to do so. Certain embodiments relate to methods and apparatuses for providing operational power to safety switches during different modes of system operation. | 2021-11-11 |
| 20210351742 | EXTERNAL ELECTRICAL CONTACT FOR SOLAR ROOF TILES - One embodiment can provide a photovoltaic roof tile module. The photovoltaic roof tile module can include a front cover, a back cover assembly, photovoltaic structures positioned between the front cover and back cover assembly, and an internal circuit component electrically coupled to the photovoltaic structures. The internal circuit component is positioned between the front cover and the back cover assembly. The back cover assembly can include at least one through hole and a metallic plug inserted inside the through hole. A first surface of the metallic plug can electrically couple to the internal circuit component, and a second opposite surface of the metallic plug can be exposed to surroundings external to the photovoltaic roof tile module, thereby facilitating electrical coupling between the photovoltaic roof tile module and another photovoltaic roof tile module. | 2021-11-11 |
| 20210351743 | SOLAR POWER GENERATION SYSTEM AND TEST METHOD - A test method for testing a solar power generation system is provided. The solar power generation system includes a DC to AC converter and a control unit. The DC to AC converter is electrically coupled between an external power grid and a solar panel. The control unit is configured to control the DC to AC converter to switch between a power generation mode and a test mode. When in the power generation mode, a photoelectric energy generated by the solar panel is provided to the external power grid via the DC to AC converter. When in the test mode, the control unit controls the DC to AC converter to generate a testing electrical energy by obtaining from the external power grid, to effect a test result of the solar panel when the testing electrical energy passes through the solar panel. | 2021-11-11 |
| 20210351744 | PROTECTION DEVICE FOR A DIRECT CURRENT ELECTRICAL PLANT | 2021-11-11 |
| 20210351745 | PHASE NOISE REDUCTION USING TRIPLE-COIL TRANSFORMER COUPLING - Methods and systems for reducing phase noise in a voltage controlled oscillator (VCO) are described. In an example, a first transistor, a second transistor, a third transistor, and a fourth transistor, can be provided. A transformer can be used to decouple drain terminals and gate terminals of the first, second, third, and fourth transistors. An oscillation amplitude of the VCO can be increased by providing a first bias voltage to the transformer to adjust gate bias voltages of the first and second transistors. The oscillation amplitude of the VCO can also be increased by providing a second bias voltage to the transformer to adjust gate bias voltages of the third and the fourth transistors. | 2021-11-11 |
| 20210351746 | HIGH EFFICIENCY ULTRA-WIDEBAND AMPLIFIER - An amplifier comprising a main branch amplifier and an auxiliary branch amplifier, wherein one branch is a constant current-biased branch, and another branch is a voltage biased branch, with the branches connected in cascode configuration to form a load modulated amplifier. | 2021-11-11 |
| 20210351747 | CIRCUITS, DEVICES AND METHODS RELATED TO ANTENNA TUNER - Circuits, devices and methods related to antenna tuner. In some embodiments, an antenna can be tuned by amplifying a signal for transmission by operating a transistor with a base current, and monitoring the base current. The method can further include adjusting an antenna tuner to thereby adjust an antenna load impedance presented to the amplified signal, with the adjustment being based on a variation of the monitored base current. | 2021-11-11 |
