24th week of 2021 patent applcation highlights part 77 |
Patent application number | Title | Published |
20210184536 | ROTARY ACTUATOR - A rotary actuator includes: an electric motor; a case that receives the electric motor; a rotatable body that is configured to transmit an output of the electric motor to an outside of the case; a seal member that seals between the rotatable body and the case; and a labyrinth forming portion that forms a labyrinth space in a path that extends from an outside space of the case to a sealing point of the rotatable body, at which the rotatable body is sealed by the seal member. | 2021-06-17 |
20210184537 | ACTUATOR - An actuator ( | 2021-06-17 |
20210184538 | FLINGER WITH NOISE REDUCTION STRUCTURE AND ELECTRIC MOTOR WITH THE FLINGER - A flinger reducing a noise associated with rotation of an electric motor, and an electric motor with the flinger. The flinger fixed to a rotating shaft of the electric motor includes a plurality of tapped holes provided in an end face on an electric motor, and a cut-out cutting out a part of each of the tapped holes. The tapped hole of the flinger has a depth less than a depth of a tapped hole of a flinger in the related art by a distance equivalent to a depth of the cut-out, so that a natural frequency of an air column formed in the tapped hole increases. Thus, when the flinger is used, rotation speed causing increase in noise during rotation can be shifted to higher rotation speed. | 2021-06-17 |
20210184539 | MAGNETIC FLYWHEEL ENERGY MANAGEMENT SYSTEM AND METHOD - Flywheel based electrical energy management system and device. The device will often comprise at least one shaft mounted flywheel, each flywheel comprising a flywheel mass that contains a plurality of permanent magnets. The flywheel spins within at least one stator comprising a plurality of magnetic pickup coils configured so that the flywheel mass can rotate freely within the stator. The flywheel may be placed in a vacuum chamber and be supported by magnetic bearings. The flywheel shaft(s) are typically connected to one or more axial mounted motor generators, and the system further typically comprises a storage battery and control processor. The system handles a variety of different and not always stable input power sources, and converts this to continuous, efficient and stable electrical power. The system can handle a variety of clients, such as buildings, electric vehicles, and the like, and can operate under a variety of challenging conditions. | 2021-06-17 |
20210184540 | AEROSOL DELIVERY DEVICE INCLUDING AN ELECTRICAL GENERATOR ASSEMBLY - The present disclosure relates to aerosol delivery devices. The aerosol delivery devices may include an atomizer, a reservoir configured to contain an aerosol precursor composition and an electrical circuit coupled to the atomizer. The electrical circuit may include an electrical generator assembly including a moveable input member and an electrical generator configured to produce an electrical current from movement of the moveable input member. The electrical circuit may be configured to direct the electrical current to the atomizer to produce an aerosol from the aerosol precursor composition. A related aerosol production method is also provided. | 2021-06-17 |
20210184541 | ELECTRIC ROTATING MACHINE - In order to provide an electric rotating machine which is inexpensive and miniaturized while improving cooling performance of a rotor, a power supply unit is fixed on the axial side of a shaft in a bracket and a permanent magnet is arranged adjacent to the advancing side in the rotation direction of a claw-shaped magnetic pole portion of a magnetic pole on the side where the power supply unit is provided. | 2021-06-17 |
20210184542 | MOTOR HOUSING WITH AN INTEGRATED COOLING PASSAGE - A cooling-channel integrated motor housing includes a motor housing, a plurality of stator cores press-fitted into the motor housing, and a cooling pipe inserted into the motor housing and disposed in a circumferential direction of a circle along which the stator cores are arranged. The 1 cooling pipe is disposed to overlap with the stator cores in a direction perpendicular to a direction in which a rotating shaft of a motor extends. | 2021-06-17 |
20210184543 | Lubrication system for an electric motor - A lubrication system is disclosed. The lubrication system may include a mounting case, a tube internal to the mounting case that is configured to carry oil, and an electric motor. The electric motor may include a motor housing, a mounting flange extending radially from the motor housing, and an oil passageway in the mounting flange. The mounting flange may be mounted to the mounting case to provide a fluid connection between the oil passageway and the tube. | 2021-06-17 |
20210184544 | DRIVER FOR MOTORS - A driver for motors according to the present invention is provided with: an aluminum substrate ( | 2021-06-17 |
20210184545 | System and Method for Ethernet Communication with a Rotary Coupler - A contactless Ethernet communication technique adapted for communication between a rotor and a stator in a rotating machine is disclosed. Power is supplied to the rotor via a contactless power transfer system. The power energizes a transmitter on the rotating machine to generate data packets in an industrial protocol, such as EtherNet/IP, for transmission on an Ethernet physical link layer. A rotary coupler, such as a digital rotary transformer, is provided between the rotor and stator, where a rotating member on the rotor is communicatively coupled to a stationary member on the stator. The data packet is transmitted in the industrial protocol via the rotary coupler. A receiver on the stationary side may receive the data packet where some initial processing may be performed and the data retransmitted. Alternately, a network device may receive the data packet and pass it along the industrial network to a remote device for further processing. | 2021-06-17 |
20210184546 | ELECTRIC ACTUATOR WITH WIRELESS DATA EXCHANGE MODULE - An electric actuator ( | 2021-06-17 |
20210184547 | Electric Motor Stator Comprising Compact Windings and Method for Manufacturing Such a Stator - An electric motor stator includes a magnetic circuit having a plurality of radial polar protuberances. The stator has, for all or some of said protuberances, a set of conductive zones in the general shape of a U, disposed around the protuberance, and the ends of each of the conductive zones are located in the vicinity of a common plane. The stator also has at least one connection component including a plurality of conductive tracks connected to distinct ends of said conductive zones, so as to define a DC electric circuit forming a winding around one or more radial polar protuberances. | 2021-06-17 |
20210184548 | COIL BANDING DEVICE FOR HAIRPIN TYPE STATOR COIL FORMING SYSTEM OF DRIVING MOTOR - A coil banding device includes a tubular nozzle disposed to penetrate the central portion of the horizontal direction of the housing, the material coil being supplied therethrough, a nozzle moving means to move the nozzle in one direction, a banding means including a pair of roller members on an upper surface of the rotating member and sandwiching the material coil discharged from the nozzle to band in a set shape, a horizontal moving means for moving the banding means horizontally through a first plate slidably mounted to the housing, a vertical moving means for moving the banding means vertically through a second plate slidably mounted on the first plate, a first rotating means for rotating the banding means with respect to a horizontal axis through a third plate rotatably mounted on the second plate, and a second rotating means for rotating the banding means about a vertical axis by a planetary gear mounted on the second plate. | 2021-06-17 |
20210184549 | METHOD OF MAKING ELECTRIC MACHINE WINDINGS WITH SEGMENTED CONDUCTORS - A method of forming a winding for an electric machine includes first bending a wire between a plurality of forming structures such that the wire is bent into a zigzag shape. Thereafter, the method includes cutting the wire at a plurality of cut locations along the zigzag shape to form a plurality of segmented conductors, each of the segmented conductors including an end turn and two legs. | 2021-06-17 |
20210184550 | ROTOR WINDING WITH A NEUTRAL PLATE FOR A BEARINGLESS INDUCTION MACHINE - A rotor for a bearingless induction motor is provided. A rotor core defines rotor slots. A rotor winding includes a common connector plate, a plurality of rotor connector plates, and a slot conductor mounted within each rotor slot. The common connector plate is mounted adjacent a first end of the rotor core. The plurality of rotor connector plates is mounted adjacent a second end of the rotor core. Each slot conductor is electrically connected to the common connector plate and to one rotor connector plate of the plurality of rotor connector plates. Each rotor connector plate of the plurality of rotor connector plates is configured to connect a group of slot conductors that includes at least two slot conductors. A number of slot conductors included in the group of slot conductors is defined based on a predefined number of suspension pole pairs selected to provide a radial suspension force. | 2021-06-17 |
20210184551 | SQUIRREL-CAGE ROTOR AND ASSOCIATED ASYNCHRONOUS ELECTRICAL MACHINE - The rotor for a squirrel-cage asynchronous rotating electrical machine comprises two compaction elements clamping a cylindrical magnetic mass, short-circuit rings facing the face of the compaction elements opposite that in contact with the magnetic mass, and conductive bars housed in recesses in the magnetic mass and distributed evenly over at least one diameter of the magnetic mass such that the short-circuit rings and the conductive bars form a squirrel cage. | 2021-06-17 |
20210184552 | Electromagnetic Actuator And Vibration Application Mechanism Including The Same - An electromagnetic actuator including an attractor to exert a magnetic attractive force in one side in a first direction, a frame, and a lever. The frame includes a frame body fixed to the attractor, and a support on an oblique-direction side relative to the attractor. The lever includes a fulcrum portion pivotally supported by the support, a first displaceable portion arranged on the other side in the second direction relative to the fulcrum portion and on the other side in the first direction relative to the attractor and magnetically attractable by the attractor to be displaced to the one side in the first direction, and a second displaceable portion arranged on the one side in the first direction relative to the fulcrum portion and on the one side in the second direction relative to the attractor and/or the frame and displaceable away from the attractor and/or the frame by the pivot of the lever. | 2021-06-17 |
20210184553 | VIBRATING ACTUATOR - A vibrating actuator having two different resonant frequencies is disclosed. The vibrating actuator comprises a first moving part | 2021-06-17 |
20210184554 | ROTARY RECIPROCATING DRIVE ACTUATOR - A movable magnet is configured by alternately magnetizing an even number of magnetic poles forming an South pole and an North pole; a number of magnetic poles of a core body is equal to a number of magnetic poles of the movable magnet; an even number of magnetic poles of the core body is respectively arranged to face the movable magnet with an air gap therebetween on the outer peripheral side of a shaft portion; and a drive unit is provided with a magnet position holding portion to face the movable magnet and magnetically attracts the movable magnet to a reference position. A drive unit is attached to one wall portion of the pair of wall portions of a base portion, and an angle sensor portion for detecting a rotation angle of the shaft portion is attached to the other wall portion of the pair of wall portions. | 2021-06-17 |
20210184555 | TRANSPORT SYSTEM AND PROCESSING SYSTEM - An embodiment includes: a first transport module on which a carriage moves; a second transport module that is configured to be able to move to a position for connecting to the first transport module and on which the carriage is able to move to and from the first transport module; a position detection unit that detects a position in a moving direction of the second transport module and outputs position information; a first control unit that controls motion of the carriage on the first transport module; a second control unit that controls motion of the carriage on the second transport module; a third control unit that controls motion of the second transport module; and a fourth control unit that controls the first to third control units. The fourth control unit corrects a position where the second transport module connects to the first transport module based on the position information. | 2021-06-17 |
20210184556 | EXTREMUM LOCATOR WITH MEASUREMENT ENABLE CIRCUIT - A controller for use in a power converter for transferring energy between an input and an output, the controller comprising a second controller to generate a request event and a request signal in response to a feedback signal and a switching window signal, the second controller to transmit the request event during a switching window of the switching window signal. The second controller comprising an extremum locator switching window generator to generate the switching window corresponding with an extremum in the winding signal and a measurement enable circuit to output an enable signal to enable the extremum locator switching window generator to measure a duration of a half cycle to generate the switching window. The measurement enable circuit to enable the extremum locator switching window generator in response to the feedback signal reaching a percentage of a target reference and output a quiet signal to prevent transmitting the request event. | 2021-06-17 |
20210184557 | DRIVE DEVICE FOR SWITCH - A drive device performs switching of at least one switch configuring an electrical power converter. The drive device includes a control section that generates a drive signal for the switch and transmits the drive signal, and at least one drive circuit that receives the transmitted drive signal. The control section generates speed adjustment information for adjusting a switching speed of the switch and transmits the speed adjustment information to the drive circuit. The drive circuit includes a speed calculation section that receives the transmitted speed adjustment information and calculates command switching speed information of the switch based on the received speed adjustment information, and a drive section that performs switching of the switch based on the received drive signal and the calculated command switching speed information. | 2021-06-17 |
20210184558 | SWITCH CONTROL DEVICE - The present disclosure concerns a device ( | 2021-06-17 |
20210184559 | CURRENT DETECTING CIRCUIT AND METHOD FOR CONSTANT ON-TIME POWER CONVERTER - A current detecting circuit of a constant on-time power converter and a method thereof are provided. The current detecting circuit includes a time detecting circuit and a sample and hold circuit. A control circuit of the constant on-time power converter outputs a lower bridge conduction signal to turn on a lower bridge switch during an on-time of each cycle of the lower bridge conduction signal. The time detecting circuit detects the on-time of a cycle of the lower bridge conduction signal. The sample and hold circuit samples and holds a current of an inductor at a detection time point of a next cycle of the lower bridge conduction signal. A time between a rising edge of a waveform of the next cycle of the lower bridge conduction signal and the detection time point is equal to half the on-time. | 2021-06-17 |
20210184560 | SWITCHING POWER CONVERTER FREQUENCY OPTIMIZATION TECHNIQUES - Techniques for fine tuning efficiency of a power converter are provided. In an example, a method can include acquiring a plurality of samples of an electrical characteristic of the power converter over a range of switching frequencies of the power converter to provide a plurality of sample pairs, estimating a corner value of the electrical characteristic based on the plurality of samples pairs, estimating a corresponding frequency associated with the corner value of the electrical characteristic based on frequencies of the plurality of sample pairs, and setting a switching frequency of the power converter at the corresponding frequency. | 2021-06-17 |
20210184561 | Switch Mode Regulator With Slew Rate Control - A circuit is configured to drive a switch mode regulator and to control the slew rate at a switching terminal of the regulator. The circuit includes first and second transistors coupled between a voltage supply terminal and a switching terminal, and includes third and fourth transistors coupled between the voltage supply terminal and the switching terminal. The circuit includes a fifth transistor coupled to the fourth transistor in a current mirror configuration and a sixth transistor coupled between the voltage supply terminal and the third transistor. The circuit includes a first resistor coupled between the voltage supply terminal and the fifth transistor, and includes a second resistor coupled between the sixth transistor and the second transistor. | 2021-06-17 |
20210184562 | POWER MODULE AND LEVEL CONVERSION CIRCUIT THEREOF - A power module including a plurality of drive devices. Each drive device includes a high-side drive element and a low-side drive element that drive a load, a high-side control circuit that controls the high-side drive element, and a low-side control circuit that controls the low-side drive element. Each of the high-side and low-side control circuits includes an abnormality detection circuit that detects an abnormal state of the high-side or low-side drive element, a capability-switch-function-equipped drive circuit that switches a drive capability of the high-side or low-side drive element, responsive to the detection of the abnormal state by any one of the abnormality detection circuits in the plurality of drive devices, and a drive capability switch circuit that switches a drive capability of the capability-switch-function-equipped drive circuit, responsive to the detection of the abnormal state by the abnormality detection circuit. | 2021-06-17 |
20210184563 | DC-DC CONVERTERS WITH LOOP CONTROL - A converter system ( | 2021-06-17 |
20210184564 | DRIVE DEVICE AND POWER MODULE - Provided is a drive device capable of suppressing an overshoot of source potential of a switching element even when a resistance value of a shunt resistance for detecting current of the switching element is large. A drive device driving a lower side switching element of an inverter circuit includes a drive circuit generating a drive signal being input to a gate of the lower side switching element and an overcurrent detection circuit detecting overcurrent flowing in the lower side switching element. The overcurrent detection circuit detects overcurrent based on voltage occurring in a shunt resistance connected to a source of the lower side switching element. The drive circuit applies potential of a connection node of the source of the lower side switching element and the shunt resistance as reference potential, and generates a drive signal of the lower side switching element. | 2021-06-17 |
20210184565 | CURRENT SENSING APPARATUS IN POWER FACTOR CORRECTION CIRCUITS AND RELATED METHODS - Current sensing apparatus in power factor correction circuits and related methods are disclosed. An example power factor correction circuit includes a first Gallium Nitride (GaN) transistor having a first current terminal and a second current terminal, a second GaN transistor having a third current terminal and a fourth current terminal, a first diode having a first anode, a second diode having a second anode, the second anode coupled to the first anode, and a resistor having a first terminal and a second terminal, the first terminal coupled to the second current terminal and the fourth current terminal, the second terminal coupled to the first anode and the second anode. | 2021-06-17 |
20210184566 | POWER CONVERTER - According to one embodiment, there is provided a power converter including a totem-pole power factor correction circuit that can achieve reduction in recovery loss with a simple structure. A power converter according to an embodiment includes a totem-pole power factor correction circuit, a series connection of a first current detector and a second current detector, and a control circuit. | 2021-06-17 |
20210184567 | HYBRID BULK CAPACITANCE CIRCUIT FOR AC/DC CHARGER - A circuit for a multi-voltage input AC/DC charger, such as a Universal AC input AC/DC charger, is provided, comprising a plurality of capacitors having different voltage ratings that are connected in parallel, and a switching circuit comprising input voltage sensing and comparator drive circuitry, to allow for selective connection of one or more of the plurality of capacitors, responsive to a sensed input voltage. Since bulk capacitors occupy a significant proportion of the volume of an AC/DC charger, this solution provides for a reduction in system volume, with associated improvement in the power density of an isolated AC/DC charger. | 2021-06-17 |
20210184568 | Power Converter with a High Conversion Ratio - The present document describes a power converter configured to provide energy at an output based on energy provided at an input. The power converter comprises a first switch, wherein a first node is coupled to the input and wherein a second node is coupled to an intermediate point, a second switch, wherein a first node is coupled to the intermediate point and wherein a second node is coupled to an inductor point, a capacitor, wherein a first node of the capacitor is coupled to the intermediate point, a first diode element, wherein a first node is coupled to a second node of the capacitor and wherein a second node is coupled to the inductor point, a second diode element, wherein a first node is coupled to a reference port, and wherein a second node is coupled to the second node of the capacitor; and an inductor, wherein a first node is coupled to the inductor point and wherein a second node is coupled to the output. | 2021-06-17 |
20210184569 | POWER SUPPLY WITH DUTY CYCLE LIMITING CIRCUIT, DUTY CYCLE LIMITING CIRCUIT, AND METHOD OF OPERATING THE SAME - A power supply with duty cycle limiting circuit includes a conversion circuit, a drive circuit, a control unit, and a duty cycle limiting circuit. The duty cycle limiting circuit converts a control signal into a control voltage, and determines whether a power switch of a power supply is turned off according to the control voltage and a threshold voltage to limit a duty cycle of the power switch. | 2021-06-17 |
20210184570 | SYSTEMS AND METHODS FOR PROVIDING INTELLIGENT CONSTANT ON-TIME CONTROL - A system that provides intelligent constant on-time control may include a first switch coupled to a power input; a second switch coupled to the first switch; a switching node between the first switch and the second switch, the switching node configured to be connected to an inductor and a power output; feedback paths coupled to (1) a synthesized node and (2) the power output, the feedback paths enabling feedback of signals from (1) the synthesized node, and (2) the power output; and a controller coupled to the feedback paths. The controller may be configured to control a voltage at the power output based on a combination of the signals carried by the feedback paths. | 2021-06-17 |
20210184571 | NON-REGULATED POWER CONVERTER WITH CURRENT SHARING CONTROL - According to an aspect, a non-regulated power converter includes a plurality of switching tank converter (STC) modules configured to be connected in parallel and to a load. The plurality of STC modules includes a first STC module configured to generate a first output current and a second STC module configured to generate a second output current. The first STC module includes an output current (OC) measuring circuit configured to measure a value of the first output current, and a dead time (DT) adjustor configured to compare the value of the first output current with a value of a minimum output current provided by the plurality of STC modules. The DT adjustor is configured to adjust a dead time in response to the value of the first output current being greater than the value of the minimum output current. | 2021-06-17 |
20210184572 | INDUCTOR BINNING ENHANCED CURRENT SENSE - An apparatus, comprising, a MOSFET, a controller coupled to the MOSFET, an inductor conductively coupled to the MOSFET. A reported current output of the controller is adjusted based on a predetermined excursion of an attribute of the inductor from a fixed attribute value. | 2021-06-17 |
20210184573 | VOLTAGE REGULATOR WITH ON-TIME EXTENSION - A voltage regulator circuit includes a high side (HS) transistor having a control input and a low side (LS) transistor having a control input. The LS transistor is coupled to the HS transistor at a switching terminal. A comparator has first and second inputs and an output. A first resistor is coupled to the switching terminal. A second resistor is coupled between the first resistor and the second input of the comparator. A capacitor is coupled between a second resistor terminal of the second resistor and ground. A switch has first and second switch terminals and a control input. The first switch terminal is coupled to the first resistor terminal of the second resistor, and the second switch terminal is coupled to the second resistor terminal. A delay circuit has an input and an output. The output of the delay circuit is coupled to the control input of the switch. | 2021-06-17 |
20210184574 | Hybrid Boost Converters - A method comprises configuring a power converter to operate as a boost converter, the power converter comprising a low side switch and a high side switch, during a first dead time after turning off the low side switch and before turning on the high side switch, configuring the power converter such that a current of the power converter flows through a high speed diode, and after turning on the high side switch, configuring the power converter such that the current of the power converter flows through a low forward voltage drop diode. | 2021-06-17 |
20210184575 | SWITCHED MODE POWER SUPPLY CONTROL TOPOLOGY - Aspects of the disclosure provide for a circuit comprising a power converter controller. In an example, the power converter controller is configured to receive a signal representative of a current of a power converter, compare the signal representative of the current of the power converter to an error signal and generate a peak current detection signal having an asserted value when the signal representative of the current of the power converter is not less than the error signal. A state machine circuit is coupled the peak current detection circuit. The state machine circuit is configured to receive the peak current detection signal, a clock signal, and a timer signal and implement a state machine to generate at least one control signal for controlling a mode and a phase of operation of the power converter based on values of the peak current detection signal, the clock signal, and the timer signal. | 2021-06-17 |
20210184576 | HALF-BRIDGE CIRCUIT WITH SLEW RATE CONTROL - First and second n-channel FETs are connected in series between first and second terminals with an intermediate switching node. First and second driver circuits drive gates of the first and second n-channel FETs, respectively, in response to drive signals. The first driver circuit does not implement slew-rate control. A first resistor and capacitor are connected in series between the output of the first driver circuit and an intermediate node. A first electronic switch is connected between the intermediate node and the first terminal. A second electronic switch is connected between the intermediate node and the gate terminal of the first n-channel FET. A second resistor and a third electronic switch are connected in series between the gate terminal of the first n-channel FET and the switching node. A control circuit generates the drive signals and a first, second and third control signal for the first, second and third electronic switch. | 2021-06-17 |
20210184577 | Buck-Boost Converter and Control Method - An apparatus includes a buck-boost converter comprising a buck portion and a boost portion connected in cascade, and a controller comprising a first timer and a second timer, wherein the first timer is configured to determine a turn-on time of a high-side switch of the buck portion, and wherein the first timer determines the turn-on time of the high-side switch of the buck portion based on a comparison between a first signal and a second signal, and wherein the first signal is proportional to an output voltage of the buck-boost converter and the second signal is generated based on a signal proportional to an input voltage of the buck-boost converter, and the second timer is configured to determine a turn-on time of a low-side switch of the boost portion. | 2021-06-17 |
20210184578 | Composite DC-DC Converter - A bidirectional composite converter is provided. The bidirectional composite converter can be used with power electronics, such as but not limited to electric vehicles and other applications. In some implementations, for example, the composite converter may be used in a powertrain of an electric vehicle to couple batteries to a high voltage bus of the vehicle to provide power to the motors and to one or more integrated charging ports (e.g., ac grid wired connections or a wireless charging port) for extremely fast charging. In various implementations, the bidirectional converter architecture may comprise one or more dc transformer modules (DCX's) arranged with output port(s) coupled in series at an output port of the composite converter. | 2021-06-17 |
20210184579 | COMPOUND PIN DRIVER CONTROLLER - A pin driver control system for enhancing pulse fidelity can include a first current switch circuit with a current input node and a voltage input node, wherein the first current switch circuit provides a switched output current signal in response to a voltage control signal at the voltage input node. The system can further include a first current source configured to receive a bias control signal and, in response, provide a drive current signal to the current input node of the first current switch. The drive current signal can have a magnitude that exceeds a magnitude of the switched output current signal. The system can further include a bias control circuit configured to receive information about a desired bias current magnitude for use by the first current switch circuit and, in response, provide the bias control signal to the first current source. | 2021-06-17 |
20210184580 | METHOD FOR OPERATING A SWITCHED MODE POWER SUPPLY OF THE BUCK TYPE AND CORRESPONDING SWITCHED MODE POWER SUPPLY - In an embodiment, a method for operating a voltage step-down switched mode power supply includes delivering an output voltage with an output stage having a power transistor that is cyclically made conducting by a first control signal. In PWM mode, the method includes generating an error voltage based on the output voltage and a reference voltage, and applying a first delay on a first control signal. The first delay is determined so as to reduce a difference between the error voltage and the reference voltage. | 2021-06-17 |
20210184581 | LOW-VOLTAGE DC-DC CONVERTER INCLUDING ZERO VOLTAGE SWITCHING AND METHOD OF DRIVING SAME - A low-voltage DC-DC converter includes a switch configured to convert a high voltage supplied from a high-voltage battery to an alternating current (AC) voltage, a transformer including an air gap in a core region and configured to lower the AC voltage to a low voltage using an adjusted turns ratio, and a power supply configured to rectify the low voltage and supply the rectified low voltage to a load. | 2021-06-17 |
20210184582 | POWER SUPPLY DEVICE - A power supply device includes an energy tank, a discharging and starting circuit, a fuse, a bridge rectifier, a transformer, a power switch element, an output stage circuit, and a controller. The energy tank includes an NTC (Negative Temperature Coefficient) thermistor. The energy tank absorbs a burst high voltage, and converts the burst high voltage into thermal energy. The discharging and starting circuit is coupled to the energy tank. The discharging and starting circuit includes a bypass path. When the resistance of the NTC thermistor is smaller than a threshold value, the bypass path is enabled, such that the energy tank is coupled through the bypass path to a ground and a ground voltage. The bridge rectifier is coupled through the fuse to the energy tank. The discharging and starting circuit is selectively configured to enable the controller. | 2021-06-17 |
20210184583 | OVERCURRENT PROTECTION DETECTOR WITH DYNAMIC THRESHOLD FOR POWER CONVERSION SWITCH - An electronic circuit comprises a power switch and a fault detection circuit. The power switch circuit includes a power switch transistor. The fault detection circuit includes a comparator circuit configured to monitor a voltage across the power switch transistor and compare the voltage to a varying threshold voltage that decreases with time, and produce an indication of a circuit fault when the voltage of the power switch transistor is greater than the time varying threshold voltage. | 2021-06-17 |
20210184584 | POWER CONVERTERS INCLUDING BIAS VOLTAGE SUPPLY CIRCUIT AND METHOD OF SUPPLYING BIAS SUPPLY VOLTAGE - A power converter includes a first and a second transformers having different auxiliary winding voltage levels. A bias voltage supply circuit generates a bias supply voltage of an integrated circuit used to control the power converter, and includes a first and a second bias supply branches jointly coupled to a supply capacitor to provide the bias supply voltage. When the bias supply voltage is higher than a threshold voltage, the first bias supply branch to receive the one with lower level of the two auxiliary winding voltages is switched from a deactivation state to an activation state to provide the bias supply voltage, when the bias supply voltage is less than the threshold voltage, the second bias supply branch to receive the one with larger level of the two auxiliary winding voltages is switched from the deactivation state to the activation state to provide the bias supply voltage. | 2021-06-17 |
20210184585 | SWITCHING CONTROL CIRCUIT AND POWER SUPPLY CIRCUIT - A power supply circuit generating an output voltage at a target level and applying the output voltage to a load. The power supply circuit includes a transformer including a primary coil, a secondary coil and an auxiliary coil, a transistor coupled to the primary coil, and a switching control circuit configured to control switching of the transistor based on a voltage from the auxiliary coil. The switching control circuit includes a determination circuit configured to determine whether to shift to a burst mode operation based on whether the load is a light load, and a burst control circuit. The burst control circuit has a clock circuit configured to measure a stop period during which the switching of the transistor is stopped in the burst mode operation, and a control circuit configured to, upon detecting that the stop period is longer than a first time period, perform control to decrease the stop period. | 2021-06-17 |
20210184586 | POWER CONVERSION CIRCUIT AND POWER CONVERSION APPARATUS WITH SAME - A power conversion circuit includes a first terminal, a second terminal, a first switching conversion unit, a second switching conversion unit, a flying capacitor and a magnetic element. The first switching conversion unit includes a first switch and a third switch. The second switching conversion unit includes a second switch and a fourth switch. The magnetic element includes two first windings and a second winding. A first one of the two first windings is serially connected between the flying capacitor and the second terminal. A second one of the two first windings is serially connected between the second switch and the second terminal. The second winding is serially connected with the flying capacitor and the first one of the two first windings. A turn ratio between the second winding, the first one of the two first windings and the second one of the two first windings is N:1:1. | 2021-06-17 |
20210184587 | SYNCHRONOUS RECTIFICATION CONTROL CIRCUIT, CONTROL METHOD, POWER SUPPLY SYSTEM, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, AND ELECTRIC POWER SYSTEM - A synchronous rectification control circuit includes: a first drive unit that outputs a signal for controlling turning on/off of a synchronous rectification element disposed on a secondary side; a second drive unit that performs control to make a voltage between both ends of the synchronous rectification element equal to a predetermined threshold voltage during a predetermined period during which a rectification current flows on the secondary side; and a drive switching unit that selectively supplies an output from the first drive unit and an output from the second drive unit to the synchronous rectification element. | 2021-06-17 |
20210184588 | CONTROL CIRCUIT, CONTROL METHOD AND RESONANT CONVERTER - A control circuit for controlling a synchronous rectification switch of a resonant converter, where in a switching cycle, the control circuit is configured to: delay a first time period from a first moment; control the synchronous rectification switch to be turned on when a drain-source voltage of the synchronous rectification switch reaches a first threshold after the first time period; and where the first time period is generated based on an operating state of the synchronous rectification switch in a previous switching cycle. | 2021-06-17 |
20210184589 | AC-AC CONVERTER COMPRISING A MATRIX ARRAY OF BIDIRECTIONAL SWITCHES OF PROGRAMMABLE CONFIGURATION - An AC-AC matrix converter that converts an input multiphase periodic voltage includes N input voltages that are out of phase into an output multiphase periodic voltage comprising N output voltages that are out of phase, the converter comprising a square matrix array comprising N | 2021-06-17 |
20210184590 | Power Apparatus Including Interlock - A power apparatus includes a first power bus bar provided at a first power part, a second power bus bar provided at a second power part coupled to the first power part while communicating internally with the first power part, the second power bus bar being fastened to the first power bus bar, a first interlock bus bar provided at the first power part while being connected to an interlock terminal of a controller disposed within the first power part, a second interlock bus bar provided at the second power part while being fastened to the first interlock bus bar, and a safety cover fastened to a fastening portion between the first interlock bus bar and the second interlock bus bar while covering a fastening portion between the first power bus bar and the second power bus bar. | 2021-06-17 |
20210184591 | Integrated Power System - A power system is disclosed that includes a chassis configured to house one or more boards in which the boards are electrically coupled to one another. The boards are configured to receive external power and to output power using a plurality of different voltages. The boards are configured to receive power from at least one internal power source electrically coupled boards and to output power using a plurality of different voltages. The boards include one or more converters configured to convert power. The one or more converters are thermally interfaced with one or more portions of the chassis. | 2021-06-17 |
20210184592 | SWITCH CONTROL - The present disclosure concerns a circuit ( | 2021-06-17 |
20210184593 | Inverter System and Method for Operating an Inverter System - Inverter system, e.g. for a solar power system, has a plurality of inverters each having an input connectable to at least one DC source, an inverter circuit for converting a DC current into an AC current, and an output connected to a bus which is connectable to a grid. The inverter system further has a controller for controlling said plurality of inverters which is configured to control the switching processes of said inverter circuits of said plurality of inverters such that the switching processes of at least two inverters of said plurality of inverters are phase-shifted relative to each other. | 2021-06-17 |
20210184594 | VOLTAGE BALANCE CONTROL METHOD FOR FLYING-CAPACITOR MULTILEVEL CONVERTER - A voltage balance control method for a flying-capacitor multilevel converter is provided. If the amplitude of the resultant current of the inductor currents from a plurality of output inductors is lower than or equal to a threshold current value, the flowing direction of the inductor current of at least one flying-capacitor multilevel branch circuit is controlled to be changed. Consequently, the problem of erroneously judging the current direction is avoided. Moreover, when the inductor current is low, the voltage of the flying capacitor is correspondingly controlled. Consequently, the voltage balance of the flying capacitor of the flying-capacitor multilevel converter can be achieved more easily. | 2021-06-17 |
20210184595 | SYSTEMS AND METHODS FOR CONTROLLING MULTI-LEVEL DIODE-CLAMPED INVERTERS USING SPACE VECTOR PULSE WIDTH MODULATION (SVPWM) - Control systems for a multi-level diode-clamped inverter and corresponding methods include a processor and a digital logic circuit forming a hybrid controller. The processor identifies sector and region locations based on a sampled reference voltage vector V* and angle Θ | 2021-06-17 |
20210184596 | INTERLEAVED INVERTER - A system and method for an interleaved inverter including a set of module circuits and an inverter controller. The module circuits include multiple switches. The inverter controller is configured to assign a first phase shift value to each of the module circuits during a normal mode of operation and assign a second phase shift value to at least one of the module circuits during a failure mode of operation. The second phase shift value is greater than the first phase shift value. | 2021-06-17 |
20210184597 | GRID-CONNECTED POWER CONVERSION SYSTEM AND CONTROL METHOD THEREOF - Disclosed are a grid-connected power conversion system and a control method thereof. The grid-connected power conversion system includes a fuel cell stack generating a DC voltage, a power conversion system (PCS) converting the DC voltage supplied from the stack into an AC voltage, a multi-input transformer including a primary coil having a plurality of voltage input terminals and a secondary coil transforming a magnitude of the voltage applied to the primary coil and outputting the transformed voltage, the plurality of voltage input terminals determining the number of turns of the primary coil differently from each other, one of the plurality of voltage input terminals receiving the AC voltage converted in the PCS, and a controller selecting the one of the plurality of voltage input terminals of the multi-input transformer based on the magnitude of the DC voltage generated from the stack and determining whether to replace the stack. | 2021-06-17 |
20210184598 | ELECTRONIC CIRCUIT, SEMICONDUCTOR DEVICE, AND ELECTRONIC APPARATUS - An electronic circuit includes an output node configured to output a DC signal indicating a rate of change over time of voltage at a measurement target node. The rate-of-voltage change detection circuit includes a first capacitor and a first resistor connected in series between the measurement target node and a reference voltage node, a first rectifier circuit connected between the output node and a connection node of the first capacitor and the first resistor, and a second capacitor connected between the output node and the reference voltage node. | 2021-06-17 |
20210184599 | Electrostatic Motor - An electrostatic motor includes a cylindrical rotor and a stator. Electrodes are disposed on an inside cylindrical surface of the stator. Electrets and/or electrically conductive electrodes are disposed on the cylindrical rotor and a dielectric fluid fills space between the rotor and the stator to prevent discharge of the electrets. A mask is used to charge portions of an electret cylinder or other curved surface. | 2021-06-17 |
20210184600 | DRIVING CONTROL APPARATUS, DRIVING CONTROL SYSTEM, LENS APPARATUS, DRIVING CONTROL METHOD, AND MEMORY MEDIUM - A driving control apparatus controls an actuator that relatively moves a vibrator and a contact body contacting the vibrator, the vibrator being made to generate vibration by applying a first signal and a second signal having a phase difference. The driving control apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first determining task configured to determine the phase difference, and a second determining task configured to determine a voltage amplitude of power supplied to the actuator so that the voltage amplitude decreases as an absolute value of the phase difference decreases. | 2021-06-17 |
20210184601 | ELECTRONIC DEVICE WITH STRUCTURE FOR HARVESTING ENERGY - An electronic device includes a housing structure including a first cover facing in a first direction and forming a first surface of the electronic device, and a second cover facing in a second direction opposite to the first direction and forming a second surface of the electronic device. The electronic device also includes a display positioned in a space formed by the housing structure and exposed through the first surface. The electronic device further includes an energy harvesting structure positioned in the space and configured to generate a current from a contact input to the first surface and a sound input generated inside and outside the electronic device. The electronic device additionally includes a battery positioned in the space. The electronic device also includes a charging circuit configured to charge the battery using the current received from the energy harvesting structure. | 2021-06-17 |
20210184602 | DYNAMIC ADAPTIVE ENERGY HARVESTING APPARATUS - Energy harvesters (EH) which can effectively harvest wasted vibrational/kinematic energy and convert it into electrical energy for battery-free sensor operation are described herein. The target application of the energy harvesters includes powering wireless sensors used for wind turbine blade structural monitoring. | 2021-06-17 |
20210184603 | System and Method for Managing Transient Power Disruptions on ESP Motor Drives - A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power. | 2021-06-17 |
20210184604 | ELECTRIC MOTOR CONTROL DEVICE - An electric motor control device that drives and controls a plurality of electric motors connected in parallel, includes: a power conversion device; a current detection device; and a controller that includes a first control unit to perform first control on each of the plurality of electric motors based on the electric current, a second control unit to perform second control of controlling the plurality of electric motors such that an estimated speed of each of the plurality of electric motors obtained based on the current value follows the speed command value, and a switching determination unit to perform switching determination processing of switching between the first control performed by the first control unit and the second control performed by the second control unit according to drive information on at least one or more of the plurality of electric motors. | 2021-06-17 |
20210184605 | Method and Apparatus for Commutation of Drive Coils in a Linear Drive System with Independent Movers - A motor controller is provided that executes a commutation routine in one of a plurality of operating modes to regulate current provided to drive coils in a linear motion system. The motor controller generated currents for each of the drive coils in a first operating mode to minimize the copper losses in the drive coils, in a second operating mode to maximize the force applied to the mover, in a third operating mode to provide balanced currents between the drive coils, and in a fourth operating mode to provide currents according to a selected operating point that combines characteristics of the first three operating points. The motor controller may also monitor each of the drive coils for saturation and redistribute at least a portion of the current required to control operation of the mover to the other drive coils when one of the drive coils is saturated. | 2021-06-17 |
20210184606 | VOICE COIL MOTOR DRIVING DEVICE AND METHOD FOR PROVIDING CONTROL SIGNAL OF THE SAME - A voice coil motor driving device and a method for providing control signals of the same are provided. The voice coil motor driving device includes a control module, a current driving module, and an input module. The current driving module outputs a plurality of digital current signals according to a driving signal, each of the plurality of digital current signals includes a plurality of current unit signals, and each of the plurality of digital current signals is arranged in a first time period, each of the plurality of digital current signals includes a plurality of reverse current unit signals, and the plurality of reverse current unit signals are arranged in a second time period, which is at a beginning of the first time period, or arranged in a third time period, which is at the end of the first time period. | 2021-06-17 |
20210184607 | BREAKER FAILURE PROTECTION USING REVERSE ACTIVE POWER AND NEGATIVE REACTIVE POWER ELEMENT - A generator system includes a generator including terminals, a generator circuit breaker coupled to the terminals and that couples and decouples the generator from a power grid, multiple sensors, and a controller that operates the generator system. The controller determines whether an active power is less than a reverse active power threshold and whether one or more turbine valves are closed, and determines that a breaker failure has occurred based on the active power being less than the reverse active power threshold and the one or more turbine valves being closed. If the active power remains less than the reverse active power and the turbine valves remain closed after a threshold time period after the trip command, and if a reactive power is less than a reverse reactive power threshold, then a breaker failure has occurred. In response, the controller may transmit another trip command to the generator circuit breaker to initiate the breaker failure protection. | 2021-06-17 |
20210184608 | SELECTIVE CROWBAR RESPONSE FOR A POWER CONVERTER TO MITIGATE DEVICE FAILURE - A method for operating a multi-level bridge power converter of an electrical power system includes connecting a plurality of phases of the power converter to a common terminal at a DC side of the power converter so as to effectively equate the plurality of phases at a common electrical potential. The method may also include monitoring, via a controller, a plurality of devices of the power converter for faults. Upon detection of a fault in one or more of the plurality of devices, the method includes activating, via the controller, one or more protection devices of a crowbar of the power converter to prevent additional faults from occurring in remaining devices of the plurality of devices by diverting energy away from the remaining devices of the plurality of devices. | 2021-06-17 |
20210184609 | POWER TOOL, MEASURING DEVICE AND METHOD FOR OPERATING A POWER TOOL - The invention relates to a method for operating a power tool, according to which a measuring device determines a winding resistance (R | 2021-06-17 |
20210184610 | Systems and Methods for Detecting Stator Winding Faults and Degradation - A diagnostic system includes: a current command module configured to, based on a motor torque request, a motor speed, a direct current (DC) bus voltage, generate a d-axis current command for an electric motor and a q-axis current command for the electric motor; a voltage command module configured to, based on the d-axis current command and the q-axis current command, generate a d-axis voltage command and a q-axis voltage command; a switching control module configured to control switching of an inverter module based on the d-axis voltage command and the q-axis voltage command, where the inverter module is configured to apply power to stator windings of the electric motor from the DC bus; and a fault module configured to selectively indicate that the stator windings of the electric motor are degraded when the d-axis voltage command is less than a predetermined nominal d-axis voltage of the electric motor. | 2021-06-17 |
20210184611 | OPERATION DEVICE AND VIBRATION GENERATING DEVICE - An operation device includes a movable portion, a vibration generating unit, a fixed portion, a detecting unit, and a control unit. The vibration generating unit includes a movable yoke attached to the movable portion, and a fixed yoke attached to the fixed portion and disposed facing the movable yoke in a first direction. The vibration generating unit includes a permanent magnet attached to one yoke among the movable yoke and the fixed yoke, both ends of the permanent magnet in the first direction being opposite magnetic poles created by magnetization. The vibration generating unit includes an exciting coil attached to a different yoke from the one yoke among the movable yoke and the fixed yoke, the exciting coil being configured to induce magnetic flux in response to a current flowing through the exciting coil. | 2021-06-17 |
20210184612 | METHOD FOR MOVING A ROTOR IN A PLANAR DRIVE SYSTEM - A method for moving a rotor in a planar drive system having a first and second stator modules and a rotor. The stator modules are arranged at a distance, forming a gap. First and second magnetic fields are generated by the first and stator modules. The first and second magnetic fields hold the rotor in a vertical position, at a distance from a surface of the first and/or second stator module. The first and/or second magnetic fields have a first magnetic field strength to maintain the rotor in the vertical position, and may be used to change a horizontal position of the rotor. The first stator module has a first close range adjacent the gap, where the first magnetic field has a second field strength when the rotor is moved across the gap, greater than the first magnetic field strength. | 2021-06-17 |
20210184613 | SHIFT RANGE CONTROL DEVICE - A shift range control device includes a plurality of control units provided for each of motor windings. When a motor rotation angle sensor is normal, a drive control unit controls an energization of the motor winding of its own system by using a motor rotation angle signal. When the motor rotation angle sensor has an abnormality and it is determined that an output shaft is rotating before a standby time elapses, the drive control unit does not energize the motor winding of its own system. When it is determined that the output shaft is not rotating even after the standby time has elapsed, the drive control unit controls the energization of the motor winding of its own system without using the motor rotation angle signal. | 2021-06-17 |
20210184614 | SYSTEM FOR CONTROLLING A SWITCH AND SWITCHING ARM - The control system comprises an amplifier ( | 2021-06-17 |
20210184615 | ELECTRONIC CIRCUITRY - According to one embodiment, an electronic circuitry that converts DC voltage into AC voltage includes first to fourth switching circuitries. A cycle includes first and second periods. During the first period, the first and second switching circuitries are turned on, and the third and fourth switching circuitries are turned off, and during the second period, the first switching and second circuitries are turned off, and the third and fourth switching circuitries are turned on. At least one of the first to fourth switching circuitries includes a first switching element and a second switching element in parallel. During a time period during which at least one of the first to fourth switching circuitries is turned on, the first switching element is turned on during a first subperiod, and the second switching element is turned on during a second subperiod that overlaps the first subperiod. | 2021-06-17 |
20210184616 | MOTOR CONTROL DEVICE - A motor control device that detects a motor current through ΔΣ AD conversion includes a stop signal generator and a stop signal controller. When a difference between a maximum value and a minimum value of three phase voltage command values to be applied to a motor is smaller than or equal to a predetermined threshold, a stop signal that causes the ΔΣ AD conversion to stop is output with a delay by the time corresponding to a delay in current detection while a leakage current caused by on and off of a power conversion element is occurring. | 2021-06-17 |
20210184617 | POWER CONVERSION DEVICE, X-RAY IMAGE CAPTURING APPARATUS, AND MOTOR DRIVE DEVICE - For reducing a difference in heat generation between multiple switching elements even when power that is supplied to a load varies greatly or power is supplied in a non-periodic manner, there is disclosed a power conversion device including a three-phase conversion circuit in which each of upper arm elements which are switching elements in an upper arm and each of lower arm elements which are switching elements in a lower arm are provided for each of three phases, and a switching control unit which alternately switches between an upper arm period of holding one of the upper arm elements ON and a lower arm period of holding one of the lower arm elements ON. The switching control unit switches between the upper arm period and the lower arm period, based on an integrated value of power which is calculated by integrating a power pattern which is set beforehand. | 2021-06-17 |
20210184618 | MOTOR DRIVING DEVICE, CIRCUITRY FOR CONTROLLING MOTOR DRIVING DEVICE, CONTROL METHOD OF MOTOR DRIVING DEVICE, AND AIR CONDITIONER (as amended) - A motor driving device includes an inverter to supply an alternating current, a switch unit that switches the number of at least one permanent magnet synchronous motor to which the alternating current is supplied from the inverter, a detector to detect a detection value corresponding to the alternating current supplied to the at least one permanent magnet synchronous motor, and a control device to control the inverter and the switch unit. The control device sets an overcurrent interruption threshold value at a value based on the number. When the detection value is greater than or equal to the overcurrent interruption threshold value, the control device makes the inverter stop the supplying of the alternating current to the at least one permanent magnet synchronous motor. | 2021-06-17 |
20210184619 | APPARATUS AND METHOD FOR PROTECTING OVERCURRENT OF CLUTCH CONTROL SYSTEM - Provided is an apparatus and method for protecting an overcurrent of a clutch control system including a motor, an inverter including a plurality of switching elements and configured to convert DC power into AC power by ON/OFF of the plurality of switching elements and to provide the AC power to the motor; a motor control unit configured to detect a current provided to the motor; and a microcomputer having an overcurrent threshold for overcurrent detection set for each of a predetermined number of levels, and configured to compare the detected current with the overcurrent threshold for each level, to diagnose whether there is a level corresponding to an overcurrent, to measure an overcurrent duration when there is a level corresponding to the overcurrent, and to control the inverter based on the overcurrent duration. | 2021-06-17 |
20210184620 | MOTOR CONTROL APPARATUS INCLUDING PROTECTION MECHANISM - A motor control apparatus includes: a converter configured to convert alternating current power of an AC source into direct current power; an inverter configured to convert the direct current power in a DC link into alternating current power for motor driving by the switching device being subjected to ON/OFF control, a DC link voltage detection unit configured to detect a DC link voltage, a DC link voltage determination unit configured to determine whether the DC link voltage exceeds a voltage threshold value, an alarm signal output unit configured to output an alarm signal in an abnormal condition; and a switching control unit configured to perform ON/OFF control on the switching device, and, when the alarm signal is output and the DC link voltage exceeds the voltage threshold value, the switching control unit performs control in such a way as to turn on all the switching device of a lower arm. | 2021-06-17 |
20210184621 | METHOD BASED ON MOTOR STALL PROTECTION AND MOTOR STALL PROTECTION APPARATUS - The present disclosure provides a method based on a motor stall protection and a motor stall protection apparatus. The method may includes: obtaining a rotational speed of a motor rotor and an output current of a motor stator; performing a pre-stall protection in response to the rotational speed being less than a first rotational speed threshold and the output current being greater than a first current threshold, the performing a pre-stall protection comprises obtaining a power module temperature, a stall decision value and a first current accumulation value; performing the stall protection in response to the first current accumulation value obtained being greater than the stall decision value. The method based on the motor stall protection provided in the present disclosure may determine a timing of performing the stall protection by periodically comparing the first current accumulation value and the stall decision value. | 2021-06-17 |
20210184622 | OVER-TEMPERATURE PROTECTION SYSTEM AND METHOD FOR DC CAPACITOR OF INVERTER - An over-temperature protection system and method for a DC capacitor of an inverter are provided. In the over-temperature protection system, a capacitor generates a DC voltage on both terminals thereof. An inverter converts the DC voltage generated on the both terminals of the capacitor into an AC voltage and supplies the AC voltage to a motor. A controller induces a ripple current of the capacitor based on a driving point determined by a torque and a speed of rotation of the motor and determines whether the capacitor is in an over-temperature state based on a totalized value of the ripple current. | 2021-06-17 |
20210184623 | SLIDE-IN RAIL FOR SUPPORTING PHOTOVOLTAIC MODULE AND MOUNTING ASSEMBLY OF PHOTOVOLTAIC MODULE - An embodiment of the present disclosure discloses a slide-in rail for supporting a photovoltaic module and a mounting assembly of the photovoltaic module. The slide-in rail includes: a fixing part and a clamping part. The clamping part includes: a vertical plate, whose bottom end is fixed to a top surface of the fixing part; and a transverse plate, transversely fixed to a top end of the vertical plate. The transverse plate, the vertical plate and the top surface of the fixing part form a pair of clip slots opposite in open direction. The clip slot is used for clipping to the photovoltaic module. In the slide-in rail for supporting a photovoltaic module and the mounting assembly of the photovoltaic module disclosed by the embodiment of the present disclosure, a clip slot is formed by the transverse plate and the vertical plate on the fixing part. The photovoltaic module may be directly mounted by way of cooperation between the clip slot and the photovoltaic module. The clip slot may limit the photovoltaic module. Therefore, the mounting time is saved. Furthermore, in the mounting process, it is unnecessary to apply excessive force to the photovoltaic module, and thus fracture of the photovoltaic module may be avoided. | 2021-06-17 |
20210184624 | FACADE ELEMENTS WITH PATTERNED COVER PLATE AND OPTICAL INTERFERENCE LAYER - A façade element having a transparent cover plate and an opaque back element mounted on the cover plate. The cover plate has an outer surface facing the external environment and an inner surface facing the back element. The outer surface has a patterned region on which an interference layer is arranged. Alternatively, the interference layer is arranged on the inner surface. The inner surface and/or the outer surface have a patterned region having a height profile with hills and valleys. A portion of the patterned region is composed of flat segments that are inclined relative to the plane of the cover plate. | 2021-06-17 |
20210184625 | METHOD FOR PREDICTIVE CONTROL OF THE ORIENTATION OF A SOLAR TRACKER - A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, including
| 2021-06-17 |
20210184626 | SOLAR MODULE MOUNTING SYSTEM - Systems and methods for mounting one or more framed solar modules are disclosed. A solar module mounting system can include a plurality of support members configured to support one or more framed solar modules above a mounting surface, such as the ground or the roof of a building. The support members can include rails formed from a rigid material, such as steel. The solar module mounting system can also include a plurality of attachment mechanisms each configured to secure a portion of a framed solar module to a portion of a respective one of the support members. | 2021-06-17 |
20210184627 | HYBRID PHOTOVOLTAIC AND THERMAL SOLAR CONCENTRATOR - The sunlight is collected by a light concentrating tube or a light concentrating funnel, after which light transporting multi wire cable or light transporting full cable tied in bundles of light transporting cables bring in the Sun rays through the tubular opening in the electrical module of the dark chamber between the photovoltaic panels for the production of electrical energy, through which heat energy is released through the tubular openings and built-in fans it is transported into the heating module of the dark chamber and the cooling module of the dark chamber, The modules are interconnected with tubular openings for transportation of the heated air, hot air inlet tubular opening and hot air outlet tubular opening coordinated through the inverter and the voltage control units interconnected with electrical cables. Concentrators of light through the light concentrating tube and the light concentrating funnel, through light transporting multi wire cable and light transporting full cable, as a separate technical solution can directly transport Sun rays into heating body-jar placed in soil in greenhouse. | 2021-06-17 |
20210184628 | DEVICE AND METHOD FOR DETECTING A PHOTOVOLTAIC MODULE - Provided are a device and method for detecting a photovoltaic module. An exemplary device for detecting a photovoltaic module may comprise a light source and a projection display unit provided on opposite sides of a photovoltaic module to be detected, respectively. Further, the projection display unit may be configured to display a projection of the photovoltaic module to be detected, generated under illumination of the light source. In devices and methods for detecting a photovoltaic module provided by embodiments herein, under illumination of the light source, the projection of the photovoltaic module to be detected may be displayed on the projection display unit, and bent corner(s) of the photovoltaic module to be detected can also be clearly displayed, which enables an accurate and quick selection of defective photovoltaic modules. Moreover, the removal of the defective photovoltaic modules greatly increases production yield of final products assembled from the photovoltaic modules. | 2021-06-17 |
20210184629 | CALIBRATION OF AUDIO POWER AMPLIFIER DC OFFSET - A method and a system of calibrating a DC offset voltage on a resistor load are provided. The system may include a first operational amplifier, a second operational amplifier, a comparator, a digital signal processor, and a digital to analog convertor. At a calibration mode, under control of the digital signal processor, the system may utilize open-loop high gain characteristics of the first operational amplifier and the comparator to automatically detect and calibrate the DC offset voltage. At an operation mode, the system may automatically compensate the DC offset voltage based on the calibration of the DC offset voltage. In this way, the system and the method can automatically detect, calibrate, and compensate the DC offset voltage with reduced cost and technical complexity. | 2021-06-17 |
20210184630 | IMPROVEMENTS IN AND RELATING TO POWER AMPLIFIERS - Disclosed is a method of reducing the Instantaneous to Average Power Ratio, IAR, of a transmitter system, comprising the steps of: receiving an input digital signal comprising a plurality of samples; extracting magnitude information for each of the plurality of samples; selecting a plurality of samples whose magnitude exceeds a predefined threshold; sorting, by magnitude, the selected plurality of samples; selecting from the sorted plurality of samples, only those samples having a spacing more than a first pre-defined spacing and filtering those samples, using an FIR filter; subtracting the output of the FIR filter from a delayed version of the input digital signal to produce an output signal. | 2021-06-17 |
20210184631 | AUTOMATIC FREQUENCY SHIFT COMPENSATION (AFSC) IN RESONANT TANK CIRCUITS OVER THE PROCESS VARIATION - A low noise amplifier that may include a first input port, a second input port, a first capacitor, a second capacitor, a first variable capacitor, a second variable capacitor, an inductor, a bias circuit, a tuning circuit, a first output circuit having a first output, a second output circuit having a second output; wherein the first input port is electrically coupled to a first end of the second variable capacitor, to a first end of the first capacitor, to an input of the first output circuit, and to a first port of the inductor; wherein the second input port is electrically coupled to a second end of the first variable capacitor, to a second end of the second capacitor, to an input of the second output circuit, and to a second port of the inductor; wherein a first port of the first varactor is electrically coupled to a second end of the first capacitor; wherein a second port of the second varactor is electrically coupled to a first end of the second capacitor; wherein the bias circuit is configured to supply a bias voltage to a third port of the inductor; and wherein the tuning circuit is configured to control a capacitance of the first varactor and a capacitance of the variable capacitor. | 2021-06-17 |
20210184632 | APPARATUS AND METHODS FOR BIAS SWITCHING OF POWER AMPLIFIERS - Apparatus and methods for bias switching of power amplifiers are provided herein. In certain configurations, a power amplifier system includes a power amplifier that provides amplification to a radio frequency (RF) signal, a power management circuit that controls a voltage level of a supply voltage of the power amplifier, and a bias control circuit that biases the power amplifier. The power management circuit is operable in multiple supply control modes, such as an average power tracking (APT) mode and an envelope tracking (ET) mode. The bias control circuit is configured to switch a bias of the power amplifier based on the supply control mode of the power management circuit. | 2021-06-17 |
20210184633 | DOHERTY POWER AMPLIFIER SYSTEM - A Doherty amplifier system is disclosed with a carrier amplifier configured to amplify a first portion of a radio frequency (RF) signal. A peaking amplifier with a peaking output is configured to amplify a second portion of the RF signal when it is above a power level threshold. A first inductor is coupled between the main output and a first middle node, and a second inductor is coupled between the first middle node and the peaking output. The first inductor and the second inductor are configured to have a first magnetic coupling to form a first impedance inverter. A third inductor is coupled between the peaking output and a second middle node, and a fourth inductor is coupled between the second middle node and an RF signal output. The third inductor and the fourth inductor are configured to have a second magnetic coupling to form a second impedance inverter. | 2021-06-17 |
20210184634 | DETECTION CIRCUIT AND METHOD FOR AMPLIFYING A PHOTOSENSOR OUTPUT CURRENT - A detection circuit that may include (i) a photosensor that is configured to convert light to current; wherein the photosensor has an output node and is configured to operate as a current source, (ii) an adder, and (iii) multiple amplification branches that are coupled in parallel between the adder and the output node of the photosensor. The multiple amplification branches do not share a feedback circuit, wherein all amplification branches of the multiple amplification branches comprise an amplifier of a same type, wherein the type is selected out of a transimpedance amplifier and a current amplifier. | 2021-06-17 |
20210184635 | AMPLIFIER, CONFIGURATION METHOD OF AMPLIFIER, AND COMMUNICATION APPARATUS - An in-band extraction unit is configured to extract an in-band from an output signal. An out-band extraction unit is configured to extract at least one pair of out-bands including a low frequency side out-band and a high frequency side out-band from the output signal. An ADC is configured to convert the extracted in-band and out-bands to digital signals. A signal processing unit is configured to process information included in the digital signals converted by the analog to digital converter and adjust an operation of predistorting an input baseband digital signal to generate the output signal. | 2021-06-17 |