44th week of 2021 patent applcation highlights part 66 |
Patent application number | Title | Published |
20210344222 | CHARGING AN INPUT CAPACITOR OF A LOAD CONTROL DEVICE - A load control device for controlling the amount of power delivered to an electrical load may include a rectifier circuit configured to receive a phase-control voltage and produce a rectified voltage. A power converter may be configured to receive the rectified voltage at an input and generate a bus voltage. An input capacitor may be coupled across the input of the power converter. The input capacitor may be adapted to charge when the magnitude of the phase control voltage is approximately zero volts. The power converter may be configured to operate in a boost mode, such that the magnitude of the bus voltage is greater than a peak magnitude of the input voltage. The power converter may be configured to operate in a buck mode to charge the input capacitor from the bus voltage when the magnitude of the phase-control voltage is approximately zero volts. | 2021-11-04 |
20210344223 | POWER MANAGEMENT SYSTEM, POWER MANAGEMENT SERVER, AND POWER MANAGEMENT METHOD - A power management system includes an output facility configured to output output power with environment additive value and a consumption facility configured to consume at least a part of the output power. The power management system includes: a first receiver configured to receive, from the output facility, a message including an information element indicating the output power, a second receiver configured to receive, from the consumption facility, a message including an information element indicating consumption power consumed by the consumption facility, and a controller configured to manage the consumption power and output power. The controller is configured to identify the output power occupied in the consumption power and identify alternative power corresponding to a power loss, based on the power loss occurring on a power path from the output facility to the consumption facility. The controller is configured to identify the environment additive value corresponding to the output power occupied in the consumption power without based on the power loss. | 2021-11-04 |
20210344224 | Method for Controlling an Exchange of Energy in an Energy System, Control Center, Energy System, and Storage Medium - Various embodiments include a method for controlling an exchange of energy in an energy system with multiple energy subsystems connected to one another for exchanging energy comprising: receiving first supply data at a control center from a first subsystem, wherein the first supply data represent respective remuneration conditions of the first subsystem for receiving and/or providing energy; transmitting the first supply data to a second subsystem; receiving second supply data at the control center, the second supply data responsive to the first supply data, from the second subsystem, wherein the second supply data represent respective remuneration conditions of the second subsystem for receiving and/or providing energy, and controlling an energy exchange between the first subsystem and the second subsystem based on both the first supply data and the second supply data. | 2021-11-04 |
20210344225 | ENERGY STORAGE MODELING AND CONTROL - Systems and methods for optimal planning and real-time control of energy storage systems for multiple simultaneous applications are provided. Energy storage applications can be analyzed for relevant metrics such as profitability and impact on the functionality of the electric grid, subject to system-wide and energy storage hardware constraints. The optimal amount of storage capacity and the optimal operating strategy can then be derived for each application and be prioritized according to a dispatch stack, which can be statically or dynamically updated according to data forecasts. Embodiments can consist of both planning tools and real-time control algorithms. | 2021-11-04 |
20210344226 | MULTI-DEVICE WIRELESS DEVICES, SYSTEMS, AND METHODS OF USE THEREOF - A multi-device wireless charger may include a charging surface disposed onto a housing structure, wherein the housing structure includes coils or other induction generating features and other electronic components that enable wireless charging via electromagnetic induction. Further, the housing structure may also include adjustable securing features, such that the multi-device wireless charger may be adjusted to accommodate more than one type of wirelessly chargeable mobile device. In one example, the securing features may include a tambour sliding surface disposed over the charging surface, positionable via a protruding member. In another example, the securing features may include at least pairs of cooperating sliding armatures. In another example, the securing features may include at least two spring-loaded sliding mechanisms configured to interoperate with a stabilizing member via spring mechanisms. The method may involve adjusting the securing features and then securing the device. | 2021-11-04 |
20210344227 | WIRELESS POWER TRANSMITTERS WITH FRONT END VEHICULAR INPUT POWER PROTECTION - A power transmitter for wireless power transfer at extended distances is configured for vehicular utilization. The power transmitter includes vehicular power input regulator configured for receiving input power and filtering the input power to a filtered input power, the vehicular power input regulator including an input protection circuit and a DC/DC voltage converter. The power transmitter further includes a control and communications circuit and an inverter circuit. The power transmitter further includes a coil for transmitting the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, each of the at least one layer having N turns, the coil defining, at least a top face and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil. | 2021-11-04 |
20210344228 | WIRELESS POWER TRANSMITTERS AND ASSOCIATED BASE STATIONS FOR TRANSMITTING POWER AT EXTENDED SEPARATION DISTANCES - A power transmitter is configured for transmission of wireless power, to a wireless receiver, at extended ranges, including a separation gap greater than 8 millimeters (mm). The power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face. The power transmitter further includes a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil. | 2021-11-04 |
20210344229 | NON-CONTACT POWER FEEDING DEVICE - A power reception device of a non-contact power feeding device has: a resonant circuit having a reception coil configured to receive electric power from a power transmission device and a resonant capacitor connected in series with the reception coil; a first rectifier circuit configured to rectify electric power received via the resonant circuit; a smoothing capacitor connected to the first rectifier circuit and configured to smooth a voltage outputted from the first rectifier circuit; a sub-coil arranged to be capable of being electromagnetically coupled to the reception coil; and a second rectifier circuit connected between the sub-coil and the smoothing capacitor, and configured to output electric power according to a voltage generated in the sub-coil to the smoothing capacitor in response to a voltage obtained by rectifying a voltage generated in the sub-coil being higher than a voltage between both terminals of the smoothing capacitor. | 2021-11-04 |
20210344230 | WIRELESS POWER TRANSFER DEVICE WITH ELECTROMAGNETIC INTERFERENCE (EMI) SUPPRESSION - A wireless power transfer device with EMI suppression includes a power conversion circuit board, a wireless power transfer coil group assembly and an eddy current damper (ECD) with a stable potential. The ECD is close to the wireless power transfer coil group assembly and is connected to a low-alternating current (AC) impedance direct current (DC) plane of the power conversion circuit board through a conductor. | 2021-11-04 |
20210344231 | METHODS AND APPARATUSES USING DEVICE COMPONENTS POWERED BY WIRELESS ENERGY - Systems, methods, and other embodiments associated with wireless energy are described. In one embodiment, systems and methods can utilize a user input that can be used as a condition for transmitting energy wirelessly between devices. Energy sent wirelessly can be sent via inductive coupling. The energy transmission can be disabled based on a variety of rules such as timers, battery or power levels of a transmitter or receiver, the distance between the devices, and so forth. Authentication to a device can be completed before enabling wireless power transmission. | 2021-11-04 |
20210344232 | Wireless Power Relay with Constant Power Controlled Converter - A wireless power relay can include a first wireless power receiver (Rx | 2021-11-04 |
20210344233 | OPERATING FREQUENCY BASED POWER LEVEL ALTERING IN EXTENDED RANGE WIRELESS POWER TRANSMITTERS - A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver and including a pulse width modulation (PWM) signal generator for determining and selecting the operating frequency from the operating frequency range. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal, coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face, and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil. | 2021-11-04 |
20210344234 | PRECISION POWER LEVEL CONTROL FOR EXTENDED RANGE WIRELESS POWER TRANSFER - A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to a power supply external to the power transmitter for controlling a power level of a power signal configured for transmission to a power receiver, the power supply configured to configure a direct current (DC) power based on the power control signals. The power transmitter further includes an inverter circuit configured to receive the DC power from the power supply external to the power transmitter and convert the input power to a power signal. The power transmitter further includes a coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face and shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil. | 2021-11-04 |
20210344235 | METHOD AND DEVICE FOR TRANSMITTING DATA IN WIRELESS POWER TRANSMISSION SYSTEM - The present disclosure relates to a method and a device for transmitting data in a wireless power transmission system. The method for transmitting data by a wireless power transmitter in a wireless power transmission system may comprise the steps of: receiving from a wireless power receiver, within a first control error interval, a first control error packet containing a control error value with respect to power transmitted from the wireless power transmitter; determining the size of a first data packet on the basis of the length of the first control error interval; and transmitting the first data packet to the wireless power receiver. | 2021-11-04 |
20210344236 | WIRELESS CHARGING CONTROL METHOD AND CHARGING CONTROL DEVICE - Provided are a wireless charging control method, a charging control device and a device to-be-charged. The method includes: according to an output voltage of a wireless receiving circuit, determining whether a power of a wireless charging signal received by the wireless receiving circuit can meet a charging power currently required by a battery; and when the power of the wireless charging signal fails to meet the charging power currently required by the battery, reducing the charging power currently required by the battery. In the embodiments, the output voltage of the wireless receiving circuit serves as the basis for determining whether the power of the wireless charging signal can meet the charging power currently required by the battery; and the difference between the charging power received by and required by the battery is decreased by reducing the charging power currently required by the battery. | 2021-11-04 |
20210344237 | STATOR CORE, ROTATING ELECTRIC DEVICE, AND STATOR CORE MANUFACTURING METHOD - This stator core is a stator core for a rotating electric machine of an axial gap type and includes a body portion formed by a compaction-molded body of soft magnetic powder whose surfaces are coated with insulating films, wherein the body portion is provided with one or a plurality of through holes. | 2021-11-04 |
20210344238 | CORE, STATOR, AND ROTARY ELECTRIC MACHINE - A core for use in an axial-gap rotary electric machine is annular and includes a plurality of core pieces into which the core is divided in a circumferential direction. Each core piece includes a yoke portion and a tooth portion that is formed integrally with the yoke portion and that projects from the yoke portion in an axial direction. Each yoke portion includes a plurality of protrusions provided on one side surface connected to the yoke portion of an adjacent one of the core pieces, and a plurality of recesses provided on other side surface connected to the yoke portion of another adjacent one of the core pieces, the recesses corresponding to the protrusions. An interval between the protrusions is 80% or less of a length of the one side surface of the yoke portion, the length being a direct distance between inner and outer peripheries of the yoke portion. | 2021-11-04 |
20210344239 | MOTOR - An embodiment relates to a motor comprising: a shaft; a rotor connected to the shaft; and a stator disposed outside the rotor, wherein the rotor includes N rotor cores, and the number of holes formed through each of the N rotor cores is at least 2N. Accordingly, the motor allows the rotor to have a skew angle by using the multiple holes formed through the rotor cores. | 2021-11-04 |
20210344240 | MACHINES UTILIZING HEAVY RARE EARTH FREE PERMANENT MAGNETS - Various examples are provided related to machines utilizing heavy rare earth (HRE) free permanent magnets. In one example, a rotor assembly including a rotor core having a plurality of rotor slots and magnets positioned within the plurality of rotor slots. At least a portion of the magnets are free of heavy rare earth (HRE) elements. The magnets can include a combination HRE segments and HRE-free segments or can be free of HRE elements. The rotor assembly can be included in an electric machine such as, e.g., a permanent magnet (PM) machine. | 2021-11-04 |
20210344241 | ROTATING ELECTRIC MACHINE - The rotating electric machine includes: a rotor; and a stator, wherein the rotor includes: a rotor core having a magnet insertion hole group including a plurality of magnet insertion holes; and a permanent magnet group including a plurality of permanent magnets inserted in the plurality of magnet insertion holes of the magnet insertion hole group, respectively, wherein the plurality of magnet insertion holes are arranged side by side in a shape convex toward a center of the rotor from a radially-outer side surface of the rotor core, wherein the permanent magnet group forms one magnetic pole, wherein, in a part of the rotor core between the radially-outer side surface and the magnet insertion hole group, a magnetic slit is formed to extend in a shape convex toward the center of the rotor from the radially-outer side surface, and wherein the magnet insertion hole group includes three magnet insertion holes. | 2021-11-04 |
20210344242 | COIL DEVICE - A coil device includes a first coil including a plate-shaped first coil body having a first and second end. The first coil body is spirally wound on a columnar portion along the extending direction of the columnar portion such that the second end is positioned on one side in the extending direction relative to the first end. The coil device further includes a second coil including a plate-shaped second coil body having a third end and a fourth end. The second coil body is spirally wound on the columnar portion along the extending direction such that the third end is positioned on the one side in the extending direction relative to the second end of the first coil, and the fourth end is positioned on the one side in the extending direction relative to the third end. The second coil is in electrically parallel connection with the first coil. | 2021-11-04 |
20210344243 | ARMATURE AND MANUFACTURING METHOD OF ARMATURE - In this stator armature, a first leg portion has a first surface side part that has a thickness in a radial direction smaller than a thickness of a first leg portion body portion in the radial direction, a second leg portion has a second surface side part that has a thickness in the radial direction smaller than a thickness of a second leg portion body portion in the radial direction, and in the radial direction, a thickness of a joint portion is equal to or more than a thickness of a part other than the joint portion. | 2021-11-04 |
20210344244 | STATOR, ROTARY ELECTRIC MACHINE, AND WORK MACHINE - A stator includes a stator core ( | 2021-11-04 |
20210344245 | INSULATING UNIT FOR AN ELECTRICAL MACHINE - An insulating unit for an electric machine with hairpin winding having a plurality of connection pins for electrically connecting to an interconnection and a plurality of welded hairpin ends which form contact pairs. The insulating unit has a base body that has an insulating material and extends at least over a portion of the circumference of the hairpin winding, characterized in that the base body has continuous openings extending in axial direction, and in that each opening is associated with a hairpin end or a connection pin | 2021-11-04 |
20210344246 | COIL MOUNTING STRUCTURE - Inclined surfaces are formed in areas adjacent to a tooth protruding from the inner circumferential surface of the yoke, on both sides in a motor rotation circumferential direction, and the inclined surfaces are inclined or curved toward a protruding direction of the tooth as a distance from the tooth increases in the motor rotation circumferential direction. The conductive wire includes parts extending in the motor rotation circumferential direction on both sides of the tooth in the motor rotational shaft direction in each of first to n-th turns, and bent portions bending in a thickness direction of the conductive wire are formed in the parts so as to align in a winding axis direction through the width of the conductive wire. Portions of the conductive wire on are inclined toward the protruding direction of the associated tooth as the distance from the bent portion increases in the motor rotation circumferential direction. | 2021-11-04 |
20210344247 | STATOR OF ROTATING ELECTRICAL MACHINE FOR VEHICLE - A first U-shaped part that is bent so as to form a pair of opposite surfaces facing each other, and a second U-shaped part that is bent so as to form a pair of opposite surfaces facing each other are provided side by side in a bus bar main body of a neutral conductor bus bar. One of the first pair of opposite surfaces and one of the second pair of opposite surfaces are located in the same plane, and the other of the first pair of opposite surfaces and the other of the second pair of opposite surfaces are located in the same plane. A temperature sensor is retained by being inserted through a gap between the first pair of opposite surfaces and a gap between the second pair of opposite surfaces. | 2021-11-04 |
20210344248 | NON-CONTACT OVERHEAD WATERPROOF STRUCTURE FOR HIGH-SPEED MOTOR - A non-contact overhead waterproof structure for high-speed motors includes a motor main body, a movable impeller, a fixed impeller, a motor shaft, a bearing and an oil seal layer. The movable impeller, the fixed impeller, the motor shaft and the bearing are provided inside the motor main body. The movable impeller, the fixed impeller and the bearing are sleeved on the motor shaft in sequence from top to bottom. The motor shaft is able to rotate along its axis to drive the movable impeller to rotate along the axis of the motor shaft. The fixed impeller is fixedly provided in the motor main body. The oil seal layer is provided between the movable impeller and the bearing, and is rotatably sleeved outside the motor shaft and sealedly provided between the motor shaft and the fixed impeller. | 2021-11-04 |
20210344249 | ELECTRIC MOTOR ASSEMBLY AND HAIR DRYER HAVING THE SAME - An electric motor assembly includes an outer housing, an impeller rotatably disposed in the outer housing, an inner housing that is disposed in the outer housing and defines an air flow path at an outside of the inner housing, a stator disposed in the inner housing, a rotor disposed in the inner housing, the rotor comprising a rotating shaft coupled to the impeller, a first bearing that is disposed in the inner housing and supports a first side of the rotating shaft, a second bearing that disposed in the inner housing and supports a second side of the rotating shaft, and a bracket that is disposed at the second bearing and that is in contact with an end of the stator. The bracket is coupled to the inner housing in an axial direction of the inner housing. | 2021-11-04 |
20210344250 | ELECTRIC MOTOR ASSEMBLY AND HAIR DRYER HAVING THE SAME - An electric motor assembly for, for example, a hair dryer, includes an impeller, an outer housing in which the impeller is accommodated, an inner housing concentrically disposed in the outer housing, a stator having one side thereof accommodated in the inner housing, a rotor provided with a rotating shaft having one end coupled to the impeller and rotatably accommodated in the stator, a first bearing disposed at one side of the rotor, a second bearing disposed at another side of the rotor, and a bracket coupled to the stator and the outer housing so as to support the second bearing. Accordingly, initial alignment of the stator and the rotor may be securely maintained. | 2021-11-04 |
20210344251 | MOTOR - The present invention may provide a motor including a housing, a stator disposed in the housing, a rotor disposed in the stator, a shaft coupled to the rotor, a busbar disposed above the stator, and a terminal portion connected to the busbar, wherein the busbar includes a busbar body and a plurality of first terminals disposed on the busbar body, the terminal portion includes a terminal body and second terminals disposed on the terminal body, first end portions of the first terminals are in contact with second end portions of the second terminals, the busbar body includes a first coupling part, the terminal body includes a second coupling part, the first coupling part is disposed between the first end portions, and the second coupling part is disposed between the second end portions. | 2021-11-04 |
20210344252 | THREE-PHASE GENERATOR WITH ADAPTIVE TAPS FOR USE IN A TRANSPORT CLIMATE CONTROL SYSTEM - Technologies described herein are directed to a generator concurrently providing different voltages to multiple components, some of which are unable to receive the full supply voltage output by the generator, without the addition of an electronic power converter or a transformer to the apparatus or system. | 2021-11-04 |
20210344253 | MOTOR COOLING FAN - An electric motor assembly includes a stator, rotor, housing, rotatable shaft, and cooling fan. The stator and rotor are at least partly housed in the housing. The shaft is associated with the rotor to rotate about an axis. The cooling fan is fixed to and thereby rotates with the shaft to induce airflow within the housing. The cooling fan includes a wheel plate projecting radially relative to the shaft. The cooling fan further includes a plurality of radial blades that project axially from the wheel plate. The blades define a series of radial channels. The wheel plate defines an axial plate opening therethrough in alignment with a respective one of the channels. | 2021-11-04 |
20210344254 | MOTOR STRUCTURE - A motor structure includes a housing, a stator winding and at least one thermal conductive pad. The housing includes an internal space. The stator winding is received in the internal space. The at least one thermal conductive pad is abutted against the stator winding. The heat of the stator winding can be transmitted by the at least one thermal conductive pad. | 2021-11-04 |
20210344255 | Electric Propulsion System Having Integrated Electrical and Thermal Architecture and Related Methods of Operating and Implementing Same - Electric propulsion systems, and methods of operating and implementing same, are disclosed herein. In one example embodiment, an electric propulsion system includes an electric motor, a motor drive coupled to the electric motor, and a thermal management subsystem. The electric motor is a permanent magnet synchronous motor, and the motor drive includes each of an inverter including a plurality of wide bandgap semiconductor field effect transistors (FETs), and a controller coupled at least indirectly to the FETs and configured to control the FETs by way of pulse width modulation (PWM) control. Additionally, at least a first portion of the electric motor and at least a second portion of the motor drive are cooled by the thermal management subsystem. | 2021-11-04 |
20210344256 | ROTOR AND MACHINE HAVING SUPERCONDUCTING PERMANENT MAGNETS - The invention relates to a rotor ( | 2021-11-04 |
20210344257 | EMI FILTER FOR DC MOTOR - An electromagnetic interference (EMI) filter | 2021-11-04 |
20210344258 | DESIGN AND PACKAGING OF WIDE BANDGAP POWER ELECTRONIC POWER STAGES - Design and packaging of wide bandgap (WBG) power electronic power stages are disclosed herein. An example apparatus includes a first printed circuit board (PCB) including: a first voltage phase circuit cluster; a second voltage phase circuit cluster; and a cluster of traces, the cluster of traces routed substantially perpendicular to the second voltage phase circuit cluster; a second PCB positioned below the first PCB; and a connector to connect the first PCB to the second PCB, the connector electrically coupled to the first voltage phase circuit cluster by the cluster of traces. | 2021-11-04 |
20210344259 | ELECTRIC MACHINE - An electric machine includes a casing, a cap covering the casing to define an enclosure, a heat sink, a circuit board in the enclosure having a first conductive layer as a top face, a second conductive layer as a bottom face, and vias passing through the circuit board between the top and bottom faces. An electronic component is soldered to the circuit board on the first conductive layer and disposed on top of a first part of the vias. A conductive mass is soldered to the circuit board proximal to the electronic component and disposed on top of a second part of the vias. The conductive mass forms part of the circuit through which a power supply of the electric machine flows and is in electric and heat exchange relationship with the electronic component, while the bottom face is in heat exchange relationship with the heat sink. | 2021-11-04 |
20210344260 | MOTOR UNIT EQUIPPED WITH DECELERATOR - A worm wheel is installed inside a wheel accommodation chamber of a body casing; a motor is fastened by screws from the right side perpendicular to the axis line of the worm wheel, thus forming a motor fastening part; and a worm fixed to an output shaft of the motor is engaged with the worm wheel. A board accommodation chamber is formed so as to be adjacent to the right of the wheel accommodation chamber, and a control board is inserted inside the board accommodation chamber from below. The control board is disposed so as to be inclined in a direction in which the upper end of the control board is displaced toward the wheel accommodation chamber from an erect attitude perpendicular to the axis line of the output shaft of the motor, and thus the upper end is separated from the motor fastening part in the direction of the axis line of the output shaft. | 2021-11-04 |
20210344261 | Method for Producing a Stator Assembly, and Stator Assembly - A method for producing a stator assembly of an electric motor includes: providing a laminated core of the stator assembly; mounting at least one coil former on the laminated core; mounting a ground contact pin on the laminated core provided with the coil former; and overmolding the laminated core with plastic. | 2021-11-04 |
20210344262 | LAMINATED SQUIRREL CAGE ROTOR - A method for forming a squirrel cage rotor includes stacking a plurality of coated laminates to form a stacked laminate core preform. The stacked laminate core preform defines a plurality of open cavities. Each coated laminate of the plurality of coated laminates includes a laminate coated with a precursor layer. The precursor layer includes a binder and glass particles. The method further includes firing the stacked laminate core preform at a temperature above the softening point of the glass particles to form a low porosity rotor core. The method further includes casting a conductive material into the plurality of open cavities formed in the rotor core to define a conductive squirrel cage structure in the low porosity rotor core. | 2021-11-04 |
20210344263 | ADDITIVELY FORMED ROTOR COMPONENT FOR ELECTRIC MACHINE AND METHOD OF FORMING - Disclosed within are a structure and method for forming a component for a rotor to be used in an electric machine. The formed rotor components can include a rotor assembly or rotor shaft. The rotor assembly can include a plurality of poles spaced about a rotor core. The plurality of poles can include a pole shoe or pole body. Quasi-laminations that can result in a unitary structure that includes support structures can be used to form all or a portion of the pole shoe or pole body. | 2021-11-04 |
20210344264 | MOTOR AND TRANSMISSION - A motor comprises: a shaft; a rotor coupled to the shaft and including a magnet; a stator disposed outside the rotor and including a coil and a stator core; a cover disposed on an upper side of the rotor; and a magnetic sensor disposed between the cover and the rotor, wherein the magnetic sensor is disposed on an upper side of the magnet, a surface of the magnetic sensor facing the rotor is disposed below the uppermost end of the coil, and the length of the rotor in the shaft direction is longer than the length of the stator core in the shaft direction. | 2021-11-04 |
20210344265 | BRUSHLESS ELECTRICAL MACHINE - A brushless electrical machine, in particular, a brushless d.c. motor, having a housing, at least one rotor, which is positioned on a shaft rotationally mounted in the housing, and a stator attached to the housing; the rotor being assigned a rotor position detection device, which operates contactlessly and includes a multipole magnetic ring positioned on the shaft in a rotatably fixed manner and at least one sensor, which is sensitive to magnetic fields and is attached to the housing radially with respect to the outer circumference of the magnetic ring. The number of pole pairs of the rotor and the number of pole pairs of the magnetic ring are coprime. | 2021-11-04 |
20210344266 | ULTRA-LOW-POWER MODE CONTROL CIRCUIT FOR POWER CONVERTER - An ultra-low-power mode control circuit for a power converter includes four modules: a level shift circuit, a start circuit, a static clamp circuit, and a control circuit. When a chip is powered on and a core voltage has not been established, the control circuit firstly starts a power source built-in clock to support operation of the power converter. When the core voltage is established, the control circuit determines whether to switch to an external clock according to a level of a mode selection signal. After the core voltage is powered down, the control circuit automatically wakes up the built-in clock to work. | 2021-11-04 |
20210344267 | COMMUNICATING FAULT INDICATIONS BETWEEN PRIMARY AND SECONDARY CONTROLLERS IN A SECONDARY-CONTROLLED FLYBACK CONVERTER - Communicating fault conditions between primary-side and secondary-side controllers of a Universal Serial Bus Power Delivery (USB-PD) device is described. The primary-side controller receives a control signal from the secondary-side controller across a galvanic isolation barrier. The primary-side controller converts the control signal into a first pulse signal and applies the first pulse signal to control a primary-side switch. When the primary-side controller detects that a first fault condition has occurred, the primary-side controller communicates a first information signal about the first fault condition to the secondary-side controller across the galvanic isolation barrier. The first information signal is generated by converting the control signal into a second pulse signal having a different pulse width than the first pulse signal. The primary-side controller applies the second pulse signal to control the primary-side power switch. | 2021-11-04 |
20210344268 | DRIVING APPARATUS AND DRIVING METHOD FOR SEMICONDUCTOR SWITCH, POWER CONVERSION APPARATUS, AND VEHICLE - A semiconductor switch driving apparatus is configured to drive a semiconductor switch, the semiconductor switch not having a body diode and having a threshold voltage for performing switching between off and on lower than a threshold voltage of a silicon device. The semiconductor switch driving apparatus includes: a first drive voltage switching circuit configured to switch a drive voltage of the semiconductor switch to a first adjustment voltage between an off-voltage and an on-voltage, at a predetermined time immediately before a timing at which the semiconductor switch is driven from off to on; and a second drive voltage switching circuit configured to switch, after the drive voltage of the semiconductor switch has been switched by the first drive voltage switching circuit, the drive voltage of the semiconductor switch to the on-voltage at the timing at which the semiconductor switch is driven from off to on. | 2021-11-04 |
20210344269 | ISOLATING ELECTRICAL COMPONENTS - An example system includes a rectifying component to convert an alternating current (AC) signal into a direct current (DC) signal. The system also includes a filtering component. The filtering component determines that a plurality of AC cycle drops have occurred and will deactivate the AC signal in response to that determination. Furthermore, the system includes an isolating component. The isolating component consumes greater than a threshold level of power in one state and less than a threshold level of power in another state. The isolating component is operating in the state that consumes greater than a threshold level of power when the signal that indicates the AC voltage is at a level in which it may allow the device to operate safely and properly is deactivated. | 2021-11-04 |
20210344270 | VEHICLE ON-BOARD CHARGER WITH SNUBBER CIRCUIT - An on-board charger is provided with a bulk capacitor adapted to couple to a vehicle traction battery and a relay for receiving electrical power from an external power supply and to pre-charge the bulk capacitor. A power factor correction (PFC) circuit is connected between the bulk capacitor and the relay. The PFC circuit includes a switch that is adjustable between an on-position and an off-position. The switch enables current flow from the relay to the bulk capacitor in the off-position. A snubber circuit is coupled to the switch to damp a transient voltage present at the switch during a transition from the on-position to the off-position. A processor is programmed to control the switch. | 2021-11-04 |
20210344271 | ERROR AMPLIFIER WITH ACCURATE OUTPUT CLAMP FUNCTION - This present invention is an invented high-performance error amplifier concept and unique circuitry architecture for controller of switching mode power supply (SMPS). The invented error amplifier comprises a front-end buffer circuit, an embedded differential amplifier, an N-MOSFET based output driving stage and coupled passive RC network. The embedded error amplifier is constructed with two differential pair inputs and an output amplification stage. N-MOSFET output stage coupled to the output of the embedded differential amplifier enhances the load driving capability of proposed error amplifier. The clamp voltage can be configured by another passive network and an output stage with two current sources. This invention allows user to arbitrarily configure the clamp voltage level regardless of the error amplifier's bias voltage. In addition, the highly accurate clamp voltage level can be achieved without temperature drift issue. | 2021-11-04 |
20210344272 | VOLTAGE REGULATION CIRCUIT - A voltage regulation circuit includes a switching output terminal, a high-side output transistor, a low-side output transistor, a high-side replica transistor, a low-side replica transistor, and a comparator circuit. The high-side output transistor is configured to drive the switching output terminal. The low-side output transistor is configured to drive the switching output terminal. The high-side replica transistor is coupled to the high-side output transistor. The low-side replica transistor is coupled to the high-side replica transistor and the low-side output transistor. The comparator circuit is coupled to the high-side replica transistor and the low-side replica transistor, and is configured to compare a signal received from both the high-side replica transistor and the low-side replica transistor to a ramp signal. | 2021-11-04 |
20210344273 | SIGNAL TRANSMISSION CIRCUIT FOR PROVIDING CONTROL INFORMATION FROM SECONDARY SIDE TO PRIMARY SIDE OF POWER CONVERTER, AND CONTROL CIRCUIT FOR POWER CONVERTER - A signal transmission circuit is configured for transmitting control information from a secondary side of a power converter to a primary side of the power converter. The signal transmission circuit includes a transmitter circuit, a signal transformer and a detection circuit. The transmitter circuit is configured to generate a ramp signal at least according to a first control signal outputted from the secondary side. The first control signal indicates the control information provided for a switch in the primary side. The signal transformer, coupled to the transmitter circuit, is configured to convert the ramp signal to generate an output signal. The output signal includes a positive-going component and a negative-going component to indicate the control information. The detection circuit, coupled to the signal transformer, is configured to detect the positive-going component and the negative-going component to provide the control information for the switch. | 2021-11-04 |
20210344274 | ELECTRIC MACHINE CONTROL - Controlling a DC-AC inverter of an electric machine, where the electric machine comprises a resonant main exciter having rotary transformer. A voltage level of DC power received at a DC-AC inverter is monitored and the frequency of AC power generated by the DC-AC inverter and supplied to the rotary transformer is controlled based at least in part on the voltage level of the DC power. | 2021-11-04 |
20210344275 | TRANSFORMER CONVERTER WITH CENTER TAP INDUCTANCE - A method and apparatus include a primary transformer coil, a secondary transformer coil, and a center tapped inductor coupled to the secondary transformer coil. A first switch may be in electrical communication with the center tapped inductor and may be configured to affect the first output voltage. A second switch may be in electrical communication with the center tapped inductor and may be configured to affect the second output voltage. In a particular example with an analog current (AC) output voltage, the two output voltages are out of phase to each other. In a direct current (DC) implementation, the transformer may be operated to output a positive and a negative output voltage. The apparatus may function as a resonant converter, or may operate in non-resonant mode. In one implementation, an H bridge may provide reactive power support. An inductor filter may be in electrical communication with the secondary transformer coil. Where desired, a diode bridge may be in electrical communication with the primary transformer coil. | 2021-11-04 |
20210344276 | HALF-BRIDGE MODULE FOR AN INVERTER OF AN ELECTRIC DRIVE OF AN ELECTRIC VEHICLE OR A HYBRID VEHICLE AND AN INVERTER FOR AN ELECTRIC DRIVE OF AN ELECTRIC VEHICLE OR A HYBRID VEHICLE - In a half-bridge module for an inverter, semiconductor switches and signal and power connections are arranged on a first surface of a substrate and coated with a casting compound, and external connection contacts for the signal and power connections extend through the casting compound to the exterior. The external connection contacts may extend from the casting compound from four second surfaces that are orthogonal to the first surface, and may have a first right angle bend outside the casting compound, such that the ends of the external connection contacts are perpendicular to the first surface. The invention also relates to a corresponding inverter. | 2021-11-04 |
20210344277 | POWER CONVERSION DEVICE - Provided is a power conversion device that can suppress interference between control of input current from an AC power supply and voltage control for a DC capacitor to perform both the controls with high accuracy, and can reduce the capacitance and size of the DC capacitor. A power conversion circuit includes a rectification bridge circuit, a leg circuit having upper and lower legs connected in series, a DC capacitor, a smoothing capacitor, and a reactor. A control circuit performs PWM control of the leg circuit by generating a duty cycle so as to control a voltage of the DC capacitor while controlling an input current from an AC power supply, in a control cycle. When the duty cycle is generated, a sum of duty cycles is made constant in one cycle for each leg. | 2021-11-04 |
20210344278 | AC/DC POWER CONVERTERS INCLUDING CURRENT TRANSFORMERS FOR BIDIRECTIONAL CURRENT SENSING - An AC/DC power converter includes input terminals, output terminals, a power factor correction circuit coupled between the input and output terminals and including at least one power switch defining a switched current path, and a current transformer including a primary winding and a secondary winding. The primary winding is coupled in series with the switched current path. The power converter also includes a first sense switch coupled with a first end of the secondary winding, a second sense switch coupled with a second end of the secondary winding, and a control circuit. The control circuit is configured to turn on the first sense switch and turn off the second sense switch during a positive polarity of the AC voltage input, and to turn off the first sense switch and turn on the second sense switch during a negative polarity of the AC voltage input. | 2021-11-04 |
20210344279 | MULTILEVEL ELECTRIC POWER CONVERTER - A multilevel power converter and method for transforming DC power from a DC source into AC power for an AC load are provided. The converter is composed of a half-bridge inverter, a switching cell, and a controller configured for controlling operation of the half-bridge inverter and the switching cell. The half-bridge inverter and the switching cell are connectable to the DC source and the AC load. The switching cell is composed of first and second pairs of switches forming first and second branches in parallel, first and second capacitors connected in series in a capacitor branch connected between the first and second branches, and a pair of back-to-back connected switches in a third branch, the third branch connected to the capacitor branch and connectable to the AC load. | 2021-11-04 |
20210344280 | METHOD FOR CONTROLLING AN ASSEMBLY OF INVERTERS IN AN ELECTRICITY GENERATION SYSTEM WITH PARALLEL INVERTERS - The invention concerns a method for controlling an assembly of at least two inverters ( | 2021-11-04 |
20210344281 | POWER CONVERSION DEVICE - A converter circuit converts AC electric power into DC power. An inverter circuit converts the DC power into AC power. A capacitor is connected in parallel to each of the converter circuit and the inverter circuit between these circuits. The capacitor allows variation of an output voltage from the converter circuit, and absorbs variation of an output voltage from the inverter circuit due to a switching operation. An overvoltage protection circuit includes a resistor and a semiconductor element connected in series to each other. The overvoltage protection circuit is connected in parallel to the capacitor to protect the inverter circuit from an overvoltage. First and second control units respectively control the inverter circuit and the overvoltage protection circuit. | 2021-11-04 |
20210344282 | Method and apparatus for determining the intermediate circuit current of a converter - An intermediate circuit current of a power converter is determined as precisely as possible in a simple and inexpensive manner. The intermediate circuit current is determined as a function of a detection of the measured output voltages and output currents of the individual phases. | 2021-11-04 |
20210344283 | Multiple-Switch Types Hybrid PEBB Power Converter - A multi-switch types hybrid power electronics build block (MST HPEBB) least replaceable unit converter employs a first low voltage side (for example, 1000 volt power switches) and a second high voltage side (for example, 3000 volt power switches). The MST HPEBB LRU employs multiple bridge converters connected in series and/or in parallel, and coupled in part by a 1:1 transformer. To reduce weight and volume requirements compared to known PEBB LRUs, different power switch types are employed in different bridge converters. For example, in one exemplary embodiment, low voltage 1.7 kVolt SiC MOSFETS may be employed on the lower voltage side, while at least some 4.5 kVolt Silicon IGBTs may be employed on the high voltage side. | 2021-11-04 |
20210344284 | STACKABLE ACTUATING ELEMENT WITH PROFILED INSULATED ELECTRODE STRUCTURES - A flat active element (FAE) layer includes: a substrate including an active body area and a protruding arm; an electrode, formed on the substrate and including an active region for sensing or actuation formed on the active body area of the substrate and a connection region formed on the protruding arm of the substrate, wherein the electrode includes a first indented line around the periphery of the active region, extending into the connection region and reaching two respective edges of the connection region, wherein the first indented line totally penetrates the electrode to make the respective edges electrically isolated; and an insulator layer formed on the electrode covering the active region and partially covering the connection region, wherein the insulator layer fills the indented line of the electrode. | 2021-11-04 |
20210344285 | DIRECT-CURRENT GENERATOR BASED ON DYNAMIC SEMICONDUCTOR HETEROJUNCTION, AND METHOD FOR PREPARING SAME - A direct-current generator based on dynamic semiconductor heterojunction and a method for manufacturing the same are provided. Direct-current generator includes a first semiconductor layer ( | 2021-11-04 |
20210344286 | ELECTRIC POWER GENERATION FROM AMBIENT HUMIDITY USING PROTEIN NANOWIRES - An electric power generation system is provided. The electric power generation system includes an electric power generation device and an ambient environment comprising an atmospheric relative humidity of at least 20%. The electric power generation device includes a thin film of protein nanowires or a nanowire composite, the thin film having an opposing first surface and second surface. The electric power generation device also includes a first electrode and a second electrode, electrically connected to the first surface and second surface, respectively, of the thin film. At least one of the first surface and the second surface of the thin film is at least partially exposed to the ambient environment. A moisture gradient and charge gradient is therefore created and maintained in the thin film to continuously generate power. | 2021-11-04 |
20210344287 | MXene COATED HYDROPHILIC FIBER MEMBRANE-BASED COMPLEX GENERATOR AND MANUFACTURING METHOD THEREOF - Embodiments of the disclosure relate to a novel concept complex generator enabling high-efficient power generation by applying a polar solution to a MXene layer-coated hydrophilic fiber membrane-based complex generator, and a manufacturing method thereof. Specifically, a MXene layer-coated hydrophilic fiber membrane-based electrical energy generation device uniformly applies MXene particles to fiber strand surfaces of hydrophilic fiber membranes through a dipping process to form a MXene layer. | 2021-11-04 |
20210344288 | SUBSTRATE PROCESSING APPARATUS, STAGE, AND TEMPERATURE CONTROL METHOD - A substrate processing apparatus includes a stage on which a substrate is placed, wherein the stage includes a first plate, a first temperature adjustment mechanism configured to control a temperature of the first plate, a second plate provided below the first plate, a second temperature adjustment mechanism configured to control a temperature of the second plate, and a fastening member configured to fasten the first plate and the second plate. | 2021-11-04 |
20210344289 | ELECTRONIC BRAKING IN A POWER TOOL - A power tool includes a three-phase DC motor, a power switching network, a power source, and an electronic processor. A first phase of the motor is connected between a first low side electronic switch and a power source electronic switch, and connected to the power source via a first high side electronic switch in parallel with a diode. The electronic processor is configured to receive an indication to stop the motor during operation of the motor and activate the first low side electronic switch and a second low side electronic switch for a first predetermined time responsive to receiving the indication such that a back-electromagnetic force generated by the motor is stored in the first phase. The electronic processor is configured to deactivate the second low side electronic switch after the first predetermined time such that a first regenerative current is provided to the power source via the diode. | 2021-11-04 |
20210344290 | POWER SUPPLY CONTROL CIRCUITS FOR BRUSHLESS DC (BLDC) MOTORS - A power supply control circuit of a three-phase brushless DC (BLDC) motor is provided. The control circuit includes means for calculating the DC current consumption I | 2021-11-04 |
20210344291 | HYBRID SYNCHRONOUS CONDENSER AND POWER GENERATION UNIT - A hybrid power generation unit and synchronous condenser system connectable to a power grid includes a combustion turbine coupled to a first shaft and operable to provide rotational energy to the first shaft, a gear box coupled to the first shaft, and a first clutch portion coupled to the first shaft. A motor is selectively coupled to the gear box to turn the gear box and the first shaft, a second clutch portion is connected to a second shaft, and a generator is coupled to the second shaft. The generator is selectively connectable to the grid to operate as a synchronous condenser when the first clutch portion and the second clutch portion are disengaged and to convert rotational energy from the first shaft to electrical power when the first clutch portion and the second clutch portion are engaged. | 2021-11-04 |
20210344292 | METHOD OF REDUCING ESTIMATION VECTORS IN A MODEL PREDICTIVE CONTROL OF ALTERNATING CURRENT MOTORS - A method for reducing a total operational load of a method of a model predictive control-by conducting simplifications based on specific observations, in order to drive alternating current motors by using the method of the MPC with a two-level voltage source inverter. The method includes the steps of determining at which one of the predefined sectors a resultant of stator currents is present, determining a motor mode, reducing seven estimation vectors to four estimation vectors and calculating a cost function or reducing seven estimation vectors to five estimation vectors and calculating the cost function. | 2021-11-04 |
20210344293 | PROCESS FOR DISAGGREGATING CHARGES USING AN ELECTRICAL SIGNATURE - A process for identifying the usage of electrical equipment connected to a power supply grid has an asynchronous motor coupled to a charge including identifying the usage of the electrical equipment by using an electrical signature of this equipment. The electrical signature is determined in a previous step and consists of a limited and predetermined set of characteristic frequencies and their harmonics obtained from the only information featuring on the identification plate of the asynchronous motor, and from visual inspection of the charge and its method for coupling to the asynchronous motor. | 2021-11-04 |
20210344294 | ROTARY-MACHINE CONTROL DEVICE, REFRIGERANT COMPRESSION APPARATUS, AND AIR CONDITIONER - A rotary-machine control device includes: a connection switching device switching a connection state of stator windings of a rotary machine; a current detection unit detecting a rotary machine current flowing in the rotary machine; a voltage application unit applying voltage to the rotary machine; a control unit generating a voltage command provided to the voltage application unit and outputting a switching command to switch the connection state to the connection switching device; and an open-phase determination unit determining presence or absence of disconnection in the rotary machine or presence or absence of disconnection of a power distribution line to the rotary machine. During rotation of the rotary machine, the control unit outputs the switching command and the open-phase determination unit determines presence or absence of disconnection. | 2021-11-04 |
20210344295 | INVERTER UNIT - An inverter unit includes a switching element unit, a control board, a cooler, and an inverter case. The inverter case is integrally fixed to a rotating electrical machine case. The cooler is disposed so as to be in contact with the switching element unit on an opposite side to a rotating electrical machine side. The control board is disposed on the rotating electrical machine side of the switching element unit. | 2021-11-04 |
20210344296 | METHOD FOR DETECTING CONDENSATE FORMATION WHICH IS IMMINENT OR HAS ALREADY TAKEN PLACE ON/IN ELECTRIC MOTORS, AND METHOD FOR AVOIDING CORRESPONDING CONDENSATE FORMATION AND/OR FOR ELIMINATING/REDUCING CONDENSATE ON/IN ELECTRIC MOTORS - A method is used to identify impending or previously occurring condensation on/in electric motors, in particular on/in electric motors as a component of fans or fan groups. It includes the following method steps:
| 2021-11-04 |
20210344297 | AC DRIVE DV/DT FILTER USING REVERSE RECOVERY CHARGE OF DIODES - Passive filters, line replaceable units and a modular power supply are provided. The passive filter comprises an inductor and a diode bridge. The inductor has a first end and a second end. The first end is coupleable to a phase output of an inverter. The diode bridge comprises a first diode and a second diode. The anode of the first diode is coupled to the second end of the inductor and a cathode of the first diode is coupleable to a positive DC bus voltage. The cathode of the second diode is coupled to the second end of the inductor and the anode of the second diode is coupleable to a negative DC bus voltage. The passive filter output is coupleable to cable(s) for an AC electric machine. A reverse recovery charge of the diodes achieves a target DV/DT for an output voltage of the passive filter at operating temperatures. | 2021-11-04 |
20210344298 | AUXILIARY SOLAR PANEL - A solar array may have a primary solar panel attached to a supporting structure and an auxiliary solar panel attached at an angle to the primary panel. The primary solar panel may be positioned to collect daily solar radiation and the auxiliary solar panel may be positioned relative the primary panel to collect daily solar radiation. The daily solar radiation collected by the primary solar panel may be peak annualized daily solar radiation and the daily solar radiation collected by the auxiliary solar panel may be off-peak solar radiation. | 2021-11-04 |
20210344299 | SOLAR POWERED ROBOTIC MOWER POWER SHED AND RELATED METHODS OF USE - A solar powered robotic mower power shed and related methods of use are disclosed. One example robotic mower power shed comprises a housing structure containing one or more compartments. The charging station further includes a roof structure equipped with one or more photovoltaic (PV) cell elements, wherein the one or more PV cell elements are configured to generate electrical energy from captured solar energy. The charging station also includes a charge control unit configured to receive electrical energy via a connection to the one or more PV cell elements and to provide the electrical energy to at least a robotic mower device docked in the housing structure. | 2021-11-04 |
20210344300 | SOLAR CELL FIELD CLEANING APPARATUS - A solar cell field cleaning apparatus ( | 2021-11-04 |
20210344301 | INTEGRATION OF MICROINVERTER WITH PHOTOVOLTAIC MODULE - Various technologies for integrating a microinverter with a photovoltaic module are disclosed. An alternating current photovoltaic (ACPV) module includes a photovoltaic module having a frame and a junction box including a direct current (DC) output connector, and a microinverter having a housing coupled to the frame and a DC input connector electrically mated with the DC output connector of the photovoltaic module. | 2021-11-04 |
20210344302 | FLEXIBLE LISSAJOUS SCANNING PATTERN BY PHASE MODULATION - An oscillator system includes a first oscillator structure configured to oscillate about a first rotation axis at a first oscillation frequency; a second oscillator structure configured to oscillate about a second rotation axis at a second oscillation frequency; a driver circuit configured to generate a first driving signal to drive an oscillation of the first oscillator structure with a first oscillation phase and the first oscillation frequency and generate a second driving signal to drive an oscillation of the second oscillator structure with a second oscillation phase and the second oscillation frequency. The first oscillation frequency and the second oscillation frequency have a variable frequency ratio with respect to each other that varies over time. The driver circuit is configured to modulate at least one of the first oscillation phase or the second oscillation phase to modulate the variable frequency ratio. | 2021-11-04 |
20210344303 | HIGH-IMPLANT CHANNEL SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a semiconductor device including an upper-channel implant transistor is provided. The method includes forming one or more fins extending in a first direction over a substrate. The one or more fins include a first region along the first direction and second regions on both sides of the first region along the first direction. A dopant is shallowly implanted in an upper portion of the first region of the fins but not in the second regions and not in a lower portion of the first region of the fins. A gate structure extending in a second direction perpendicular to the first direction is formed overlying the first region of the fins, and source/drains are formed overlying the second regions of the fins, thereby forming an upper-channel implant transistor. | 2021-11-04 |
20210344304 | POWER AMPLIFIER MODULE - A power amplifier module includes an amplifier transistor and a bias circuit. A first power supply voltage based on a first operation mode or a second power supply voltage based on a second operation mode is supplied to the amplifier transistor. The amplifier transistor receives a first signal and outputs a second signal obtained by amplifying the first signal. The bias circuit supplies a bias current to the amplifier transistor. The bias circuit includes first and second resistors and first and second transistors. The first transistor is connected in series with the first resistor and is turned ON by a first bias control voltage which is supplied when the first operation mode is used. The second transistor is connected in series with the second resistor and is turned ON by a second bias control voltage which is supplied when the second operation mode is used. | 2021-11-04 |
20210344305 | DUAL-DOMAIN POWER DISTRIBUTION SYSTEM IN A MOBILE DEVICE - A mobile device may include a power supply configured to generate a supply voltage, a power converter configured to generate a converted voltage from the supply voltage wherein the converted voltage is significantly different than the supply voltage, and a plurality of power domains. The plurality of power domains may include a first power domain that is global to the mobile device and comprising a first plurality of electronic components powered from the converted voltage and a second power domain that is global to the mobile device and comprising a second plurality of electronic components powered from the supply voltage, wherein power requirements of each of the second plurality of electronic components are significantly higher than power requirements of each of the first plurality of electronic components. | 2021-11-04 |
20210344306 | AMPLIFIER WITH SAMPLE AND AVERAGE COMMON MODE FEEDBACK RESISTOR - An amplifier is presented with a sample and average common mode feedback resistor. The amplifier circuit includes a feedback capacitor and a feedback resistor in parallel with the feedback capacitor, where the feedback capacitor and the feedback resistor form part of the negative feedback path for the amplifier. Of note, the feedback resistor is comprised of a low pass filter in series with a switched capacitor resistor, such that the low pass filter is electrically coupled to the output of the amplifier circuit and the switched capacitor resistor is electrically coupled to the inverting input of the amplifier circuit. The amplifier circuit further includes a control circuit interfaced with switches of the switched capacitor resistor. The high pass corner of the switched capacitor resistor is preferably lower than corner of the low pass filter. | 2021-11-04 |
20210344307 | LOAD DETECTION CIRCUIT AND AMPLIFIER CIRCUIT - A load detection circuit includes a first detection part and a second detection part. The first detection part includes a first capacitor and a second capacitor, forms capacitive coupling with a signal transmission line connecting an output port of an RF amplifier and a load, and outputs a first signal. The second detection part includes a first inductor and a second inductor, forms inductive coupling with the signal transmission line, and outputs a second signal. | 2021-11-04 |
20210344308 | HIGH-FREQUENCY POWER AMPLIFIER - A high-frequency power amplifier is configured in such a way as to include an input matching circuit, an amplifying element, an output matching circuit, a coupling circuit, a detection circuit, and an output terminal, and in such a way that either the input matching circuit or the output matching circuit has an active element, the detection circuit receives a signal outputted by the coupling circuit and outputs a control voltage into which the detection circuit converts the signal to the active element, and the active element changes the impedance of the active element in accordance with the control voltage outputted by the detection circuit, thereby changing the power of a signal outputted by either the input matching circuit having the active element or the output matching circuit having the active element, to change the power of a signal which the coupling circuit outputs to the output terminal. | 2021-11-04 |
20210344309 | COMMON-MODE INSENSITIVE CURRENT-SENSING TOPOLOGY IN FULL-BRIDGE DRIVER WITH HIGH-SIDE AND LOW-SIDE ENERGY MATCHING CALIBRATION - A system may include a Class-D stage comprising a first high-side switch coupled between a supply voltage and a first output terminal of the Class-D stage, a second high-side switch coupled between the supply voltage and a second output terminal of the Class-D stage, a first low-side switch coupled between a ground voltage and the first output terminal, and a second low-side switch coupled between the ground voltage and the second output terminal. The system may also include current sensing circuitry comprising a first sense resistor coupled between the first low-side switch and the ground voltage, such that an output current through a load coupled between the first output terminal and the second output terminal causes a first sense voltage proportional to the output current across the first sense resistor when the first low-side switch is activated. The current sensing circuitry may also include a second sense resistor coupled between the second low-side switch and the ground voltage, such that an output current through the load causes a second sense voltage proportional to the output current across the second sense resistor when the second low-side switch is activated. The system may also include measurement circuitry configured to measure the first sense voltage and the second sense voltage to determine the output current. | 2021-11-04 |
20210344310 | COMMON-MODE INSENSITIVE CURRENT-SENSING TOPOLOGY IN FULL-BRIDGE DRIVER - A system may include a Class-D stage comprising a first high-side switch coupled between a supply voltage and a first output terminal of the Class-D stage, a second high-side switch coupled between the supply voltage and a second output terminal of the Class-D stage, a first low-side switch coupled between a ground voltage and the first output terminal, and a second low-side switch coupled between the ground voltage and the second output terminal. The system may also include current sensing circuitry comprising a first sense resistor coupled between the first high-side switch and the supply voltage, such that an output current through a load coupled between the first output terminal and the second output terminal causes a first sense voltage proportional to the output current across the first sense resistor when the first high-side switch is activated. The current sensing circuitry may also include a second sense resistor coupled between the second high-side switch and the supply voltage, such that an output current through the load causes a second sense voltage proportional to the output current across the second sense resistor when the second high-side switch is activated. The system may also include measurement circuitry configured to measure the first sense voltage and the second sense voltage to determine the output current. | 2021-11-04 |
20210344311 | CLASS D AMPLIFIERS - The present disclosure relates to Class D amplifier circuitry comprising a mode controller configured to dynamically adjust an operational switching mode of the Class D amplifier over a range between a Class AD mode and a Class BD mode. | 2021-11-04 |
20210344312 | POWER AMPLIFIER DEVICE - A power amplifier device includes a semiconductor substrate; a plurality of first transistors that are provided on the semiconductor substrate and receive input of a radio-frequency signal; a plurality of second transistors that are provided on the semiconductor substrate and electrically connected to the respective plurality of first transistors, and output a radio-frequency output signal obtained by amplifying the radio-frequency signal; a plurality of first bumps provided so as to overlay the respective plurality of first transistors; and a second bump provided away from the plurality of first bumps and provided so as not to overlay the plurality of first transistors and the plurality of second transistors. When viewed in plan from a direction perpendicular to a surface of the semiconductor substrate, a first transistor and a first bump, a second transistor, the second bump, a second transistor, and a first transistor and a first bump are arranged in sequence. | 2021-11-04 |
20210344313 | DIGITAL COMPENSATION SYSTEM FOR A RADIO FREQUENCY POWER AMPLIFIER MODULE - A digital compensation system for a radio frequency (RF) power amplifier module is disclosed. The digital compensation system includes an RF power amplifier having a first input, a first output, and a first bias input, wherein the RF power amplifier is configured to receive an RF signal at the first input and generate an amplified version of the RF signal at the first output. The digital compensation system also includes compensation circuitry coupled between the first input and the first output and a bias output coupled to the RF power amplifier, wherein the compensation circuitry is configured, in response to the RF signal, to generate or adjust a bias signal at the first bias input to correct dynamic bias errors caused by amplification variations that have time constants. | 2021-11-04 |
20210344314 | CLASS AB BUFFER WITH MULTIPLE OUTPUT STAGES - A class AB buffer includes an output stage and an input stage. The output stage includes a first output transistor and a second output transistor. The second output transistor is coupled to the first output transistor. The input stage is coupled to the output stage. The input stage includes a first cascode transistor, a first switch, a second cascode transistor, and a second switch. The first switch is coupled to the first cascode transistor and the first output transistor. The second switch is coupled to the first switch, the second cascode transistor, and the first output transistor. | 2021-11-04 |
20210344315 | CHOPPER SYSTEM AND METHOD - Systems and methods are provided for which a chopper modulator and a chopper demodulator of a chopped apparatus having a variable chopper frequency are described. A feedback path is used to reduce ripples and/or remaining offsets as a result of the variable chopper frequency. | 2021-11-04 |
20210344316 | Field Effect Transistor Circuits - A number of field effect transistor circuits include voltage controlled attenuators or voltage controlled processing circuits. Example circuits include modulators, lower distortion variable voltage controlled resistors, sine wave to triangle wave converters, and or servo controlled biasing circuits. | 2021-11-04 |
20210344317 | TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH ETCHED CONDUCTOR PATTERNS - An acoustic resonator is fabricated by forming a patterned first photoresist mask on a piezoelectric plate at locations of a desired interdigital transducer (IDT) pattern. An etch-stop layer is then deposited on the plate and first photoresist mask. The first photoresist mask is removed to remove parts of the etch-stop and expose the plate. An IDT conductor material is deposited on the etch stop and the exposed plate. A patterned second photoresist mask is then formed on the conductor material at locations of the IDT pattern. The conductor material is then etched over and to the etch-stop to form the IDT pattern which has interleaved fingers on a diaphragm to span a substrate cavity. A portion of the plate and the etch-stop form the diaphragm. The etch-stop and photoresist mask are impervious to this etch. The second photoresist mask is removed to leave the IDT pattern. | 2021-11-04 |
20210344318 | Piezo Magnetic Resonator/Amplifier - The piezoelectric effect is a well-known phenomenon inherent in some crystal compounds. Silicon dioxide in nature forms a natural hexagonal crystal. The same material when heated to a molten state and then rapidly cooled becomes common glass with no piezoelectric effect. The phenomenon is an electrical or electron relationship to the crystal in that when the modulus is changed the state of electrical charge also changes and in two modalities. If you apply an electrical charge the crystal will change shape and if you change the shape the crystal it will cause an electrical charge. | 2021-11-04 |
20210344319 | INTERDIGITATED RF FILTER - An interdigitated RF filter. The interdigitated RF filter includes input fingers connected to an input node and output fingers connected to an output node where at least one input finger is connected the output node or at least one output finger is connected to the input node. The described interdigitated RF filter can be implemented in various configurations such as series, shunt, ladder or a combination thereof. | 2021-11-04 |
20210344320 | BAND-PASS FILTER - A band-pass filter includes an unbalanced port, a first balanced port, a second balanced port, and first to third resonators provided between the unbalanced port and the first and second balanced ports. The second resonator and the third resonator each are a resonator with both ends open. The second resonator and the third resonator are adjacent to each other in a circuit configuration, and electromagnetically coupled by magnetic coupling as main coupling. The first resonator is provided closer to the second resonator than to the third resonator, and jump-coupled to the third resonator. | 2021-11-04 |
20210344321 | MULTI-LAYER RAISED FRAME IN BULK ACOUSTIC WAVE DEVICE - Aspects of this disclosure relate to a bulk acoustic wave device that includes a multi-layer raised frame structure. The multi-layer raised frame structure includes a first raised frame layer positioned between a first electrode and a second electrode of the bulk acoustic wave device. The first raised frame layer has a lower acoustic impedance than the first electrode. The first raised frame layer and the second raised frame layer overlap in an active region of the bulk acoustic wave device. Related filters, multiplexers, packaged modules, wireless communication devices, and methods are disclosed. | 2021-11-04 |