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87 results about "Power electronics circuits" patented technology
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Power converter connection configuration
InactiveUS7450388B2Small and light and efficient configurationImprove performanceMagnetic/electric field screeningDigital data processing detailsModular unitModularity
Owner:ROCKWELL AUTOMATION TECH
Power converter having improved terminal structure
InactiveUS7187568B2Small and light and efficient configurationImprove performanceConversion constructional detailsCooling/ventilation/heating modificationsModular unitEngineering
A terminal structure for power electronics circuits reduces the need for a DC bus and thereby the incidence of parasitic inductance. The structure is secured to a support that may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support may form a shield from both external EMI / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as by direct contact between the terminal assembly and AC and DC circuit components. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Cooled electrical terminal assembly and device incorporating same
InactiveUS6898072B2Small and light and efficient configurationImprove performanceConversion constructional detailsSemiconductor/solid-state device detailsModular unitModularity
A terminal structure provides interfacing with power electronics circuitry and external circuitry. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the terminal structure and the circuits through fluid circulating through the support. The support may form a shield from both external EMI / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Power converter having improved fluid cooling
InactiveUS7187548B2Improve performanceSmall and light and efficient configurationConversion constructional detailsHeat exchange apparatusModular unitClosed loop
A thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support, which may be controlled in a closed-loop manner. Interfacing between circuits, circuit mounting structure, and the support provide for greatly enhanced cooling. The support may form a shield from both external EMI / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Compact vehicle drive module having improved thermal control
InactiveUS6982873B2Improve performanceSmall and light and efficient configurationConversion constructional detailsPower cablesModular unitClosed loop
An electric vehicle drive includes a thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support, which may be controlled in a closed-loop manner. Interfacing between circuits, circuit mounting structure, and the support provide for greatly enhanced cooling. The support may form a shield from both external EMI / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Heat sink cooling arrangement for multiple power electronic circuits
InactiveUS8335081B2Digital data processing detailsModifications for power electronicsMotor driveEngineering
The present invention relates generally to tuning the flow of cooling air across converter and inverter heat sinks in a motor drive system. More specifically, present techniques relate to motor drive duct systems including heat sinks with separate, sequential heat sink fin sections disposed in a common cooling air path and having different geometries to optimize the flow of cooling air across and between fins of the separate heat sink fin sections. For example, the heat sink fin sections may have different fin lengths, fin heights, fin counts, fin pitch (e.g., distance between adjacent fins), and so forth. Each of these different geometric characteristics may be tuned to ensure that temperatures and temperature gradients across the heat sinks are maintained within acceptable ranges.
Owner:ROCKWELL AUTOMATION TECH
Vehicle drive module having improved EMI shielding
InactiveUS7142434B2Small and light and efficient configurationImprove performanceMagnetic/electric field screeningConversion constructional detailsModular unitModularity
Owner:ROCKWELL AUTOMATION TECH
Fluid cooled vehicle drive module
InactiveUS6965514B2Improve performanceSmall and light and efficient configurationSpeed controllerConversion constructional detailsModular unitComputer module
An electric vehicle drive includes a support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support, in conjunction with other packaging features may form a shield from both external EM / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Modular power converter having fluid cooled support
InactiveUS6940715B2Small and light and efficient configurationImprove performanceSpeed controllerConversion constructional detailsModular unitModularity
A support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support, in conjunction with other packaging features may form a shield from both external EMI / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Vehicle drive module having improved terminal design
InactiveUS7032695B2Improve performanceSmall and light and efficient configurationSpeed controllerConversion constructional detailsDirect touchModular unit
A terminal structure for vehicle drive power electronics circuits reduces the need for a DC bus and thereby the incidence of parasitic inductance. The structure is secured to a support that may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support may form a shield from both external EMI / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as by direct contact between the terminal assembly and AC and DC circuit components. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Electromechanical inductors and transformers
InactiveUS20120020117A1High energy storageIncrease energy densityDc network circuit arrangementsVariable inductancesElectrical conductorHigh density
Devices and systems for power electronic circuits are provided. Embodiments of the present invention enable high density inductive energy storage by using electromechanical coupling between an electrically conducting inductive element and a mechanical resonator to passively store energy via both electromagnetic and mechanical mechanisms. A microelectromechanical inductor (MEMI) is provided utilizing a magnet and a conductor. In a specific embodiment, the MEMI includes a permanent magnet on a compliant layer centrally disposed within a spiral coil. In a further embodiment, a second coil is provided near the magnet to provide a resonating transducer.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Electronically controlled directionally rotating single-phase self-starting permanent-magnet synchronous motor
ActiveCN102790565AGood for eliminating influenceImprove stabilitySingle motor speed/torque controlElectronic commutatorsPermanent magnet rotorSynchronous motor
An electronically controlled directionally rotating single-phase self-starting permanent-magnet synchronous motor comprises a stator, a permanent-magnet rotor, a power electronic circuit and a control circuit; and an alternating-current power supply outputs voltage to the stator via the power electronic circuit. The control circuit comprises a detection circuit and a position sensor; the detection circuit is used for detecting the state of the alternating-current power supply; the position sensor is mounted nearby the periphery of the rotor to detect the state of the permanent-magnet rotor; and according to the output of the detection circuit and the output of the position sensor, the power electronic circuit is controlled. The output of the detection circuit includes the transient cycle time of the alternating-current power supply; the output of the position sensor includes the frequency of the magnetic poles of the rotor passing by the position sensor; and when the frequency of the magnetic poles of the rotor passing by the position sensor in a cycle of specified frequency is two times higher than the cycle frequency, the power electronic circuit decreases the voltage outputted to the stator and keeps the voltage at a specified value. The motor can keep optimal performance, however, no-load running vibration, noise and temperature rise are remarkably improved, and the structure is simpler and more reliable.
Owner:HANYU GRP CO LTD
Micro-electro-mechanical module
InactiveUS7907037B2Available powerPrevent charge leakageThermometers using material expansion/contactionThermal micromechanical switchesElectricityElectric power
A MEMS module that contains at least one integrated energy storage device whose discharge is minimized and controlled, so that power is available for system operation over longer periods of time. The MEMS module includes a device electrically coupled to the energy storage device for controlling charge transfers from the energy storage device while preventing charge leakage from the energy storage device. The controlling device includes a plurality of integrated MEMS switches that define open electrical paths that prevent charge leakage from the energy storage device through the MEMS switches, and are then operable to define closed electrical paths to allow charge transfers from the energy storage device, and preferably also allow charge transfers to the energy storage device, through the MEMS switches. The charge transfer can be utilized to power electronic circuits or store data in non-volatile digital memory.
Owner:BELLUTECH LLC
Multi-mode control method and device
ActiveCN106685191AImprove performanceImprove adaptabilityEfficient power electronics conversionDc-dc conversionBoundary valuesMode control
The application discloses a multi-mode control method and device. The multi-mode control method comprises the following steps of: determining the current working mode of a controlled circuit; presetting multiple working modes for the controlled circuit, dividing operation areas in different working modes by adopting performance optimization of the controlled circuit as an objective, and determining the condition for switching among the different working modes according to boundary values of all the operation areas; determining the current operation state of the controlled circuit; judging whether the controlled circuit meets the condition for switching from the current working mode to another working mode according to the current operation state of the controlled circuit; and if so, controlling the controlled circuit to switch from the current working mode to another working mode so as to improve the adaptability of power electronic circuits to complex application occasions.
Owner:SUNGROW POWER SUPPLY CO LTD
Power circuit component optimization method based on orthogonal learning particle swarm
InactiveCN103258131AOptimize valueOvercome the defect that it is easy to fall into local optimumSpecial data processing applicationsObject basedParticle swarm algorithm
The invention discloses a power circuit component optimization method based on an orthogonal learning particle swarm, and belongs to the power electronic technology and the field of computational intelligence. An orthogonal learning particle swarm optimization with a mutation strategy is used for carrying out optimization on an optimal component design of a power electronic circuit. Firstly, a method of generating a new optimal learning object based on an orthogonal combination mode is designed, and is used for mining information of a historical optimal solution of a particle individual and information of a globally-optimal solution of a swarm in the orthogonal learning particle swarm optimization, and combining a learning object which can guide particles to develop in a better direction, secondly, a mutation operator which can improve diversity of the orthogonal learning particle swarm optimization is designed, and the defect that the orthogonal learning particle swarm optimization easily falls into local optimum is overcome. All components of the power electronic circuit serve as variables needing to be optimized and are coded into individuals of the orthogonal learning particle swarm optimization, optimization is carried out on values of the components of the power electronic circuit through specific optimization processes such as update of the speed, update of the location, mutation operation and update of the optimal learning object of the orthogonal learning particle swarm optimization, and the power circuit component optimization method based on the orthogonal learning particle swarm has important application value in the existing large-scale circuit design and optimization field.
Owner:SUN YAT SEN UNIV
Lithium battery auto-depassivation system and method
ActiveUS20150171655A1Electric powerCharge maintainance charging/dischargingHemt circuitsEmbedded system
A battery depassivation system includes a depassivation circuit, a battery connect / disconnect circuit, and a processor. The depassivation circuit is adapted to be electrically coupled in series with a battery. The depassivation circuit is also coupled to receive an ENABLE signal and is configured, upon receipt thereof, to draw current from the battery. The battery connect / disconnect circuit is adapted to be electrically coupled in series between the battery and one or more battery-powered electronic circuits. The battery connect / disconnect circuit is coupled to receive an ISOLATE signal and is configured, upon receipt thereof, to electrically disconnect the one or more battery-powered electronic circuits from the battery. The processor is adapted to couple to the battery and is configured, upon being coupled thereto, to determine if the battery needs depassivation and implement a depassivation routine if the battery is determined to need depassivation.
Owner:HONEYWELL INT INC
Cooling of power electronics circuits
ActiveUS10980103B2High resolutionPrevent high current densitySemiconductor/solid-state device detailsPrinted circuit aspectsElectrical conductorEngineering
Owner:DR ING H C F PORSCHE AG
Power Electronics Housing And Packaging For Flywheel Energy Storage Systems
ActiveUS20180034344A1Mechanical energy handlingSupports/enclosures/casingsAlternatorFlywheel energy storage
A flywheel energy storage system includes a flywheel housing that encloses a flywheel rotor, a motor / alternator, and a power electronics unit. The power electronics unit includes a power electronics housing directly mounted on the flywheel housing, and one or more power electronic circuits enclosed by the power electronics housing. The direct mounting of the power electronics housing on the flywheel housing enables thermal distribution for passive cooling purposes. The design of the flywheel energy storage system also reduces the vibrational forces imparted by the power electronics housing on the flywheel housing.
Owner:AMBER KINETICS
Power electronic circuit fault diagnosis method based on extremely randomized trees and stacked sparse auto-encoder algorithm
ActiveUS20200386811A1Prevent overfittingImprove accuracyEnsemble learningElectrical testingFeature setAlgorithm
A power electronic circuit fault diagnosis method based on Extremely randomized trees (ET) and Stack Sparse auto-encoder (SSAE) algorithm includes the following. First, collect the fault signal and extract fault features. Then, reduce the dimensionality of fault features by calculating the importance value of all features using ET algorithm. A proportion of the features to be eliminated is determined, and a new feature set is obtained according the value of importance. Further extraction of fault features is carried by using SSAE algorithm, and hidden layer features of the last sparse auto-encoder are obtained as fault features after dimensionality reduction. Finally, the fault samples in a training set and a test set are input to the classifier for training to obtain a trained classifier. And mode identification, wherein the fault of the power electronic circuit is identified and located by the training classifier.
Owner:WUHAN UNIV
Electronic Insect Barrier
A electronic insect barrier is provided that includes individual units, powered by electrical current supplied through power cords or network connections to power electronic circuits contained in housings, shielded by circuit board covers, units having a base with a bed leg anchor, supporting and stabilizing a bed leg away from electrical conductors separated by insulators, a means for killing insects particularly bedbugs who enter the housing through crawl holes and an opening, said bugs coming in contact with conductors as they egress a bed.
Owner:BRONK RICHARD K
Battery module for a traction battery
ActiveUS10759284B2Compensated by the cells and their cooling system very easilyBoosting of the cooling systemCell temperature controlCells structural combinationPower batteryEngineering
A battery module for a traction battery having a housing, battery cells arranged inside the housing, a power electronics circuit board which is adjacent to the battery cells, a support face, facing away from the power electronics circuit board, for a cooling plate of the traction battery, and a heat-conducting element which bears over a surface on the power electronics circuit board and runs between the battery cells in the direction of or along the support face. Also described is a corresponding method for manufacturing a battery module, a corresponding traction battery and a corresponding electric car.
Owner:DR ING H C F PORSCHE AG
Flexible bootstrapping for power electronics circuits
ActiveUS20200395840A1Avoid dischargeCurrent is limitedEfficient power electronics conversionDc-dc conversionHemt circuitsBootstrapping (electronics)
The invention relates to a method and to a charging circuit (800) for flexible bootstrapping in power electronics circuits, comprising a blocking diode (112), at least one bootstrap transistor (804), at least one resistor (812, 822) and at least one electrical component (802), which is designed to conduct a current flow when a predetermined potential difference is exceeded. An energy storage device (102) used for controlling a power semiconductor switch (100) and a source / emitter potential of the power semiconductor switch (100) are at the same potential, charging of the energy storage device (102) being effected as soon as the potential of a supply voltage (106) is above a potential of the energy storage device (102). Overcharging is prevented as soon as the predetermined potential difference in the electrical component (802) is exceeded, and discharging of the energy storage device (102) is prevented by the blocking diode (112).
Owner:DR ING H C F PORSCHE AG
Power electronic circuit transient simulation GPU acceleration method facing exponential integral
InactiveCN107918292AHigh numerical precisionOvercoming Numerical Stability EffectsSimulator controlTransient stateGraphics
Owner:天津天成恒创能源科技有限公司
Establishing method for non-sectioned GaN HEMT model
ActiveCN107103122AFast convergenceImprove accuracySpecial data processing applicationsEngineeringGate source capacitance
The invention provides an establishing method for a non-sectioned GaN HEMT model. The establishing method includes the steps that a voltage control current source I<DS>, gate-drain capacitance C<GD>, gate source capacitance C<GS> and drain-source capacitance C<DS> are obtained; the static characteristics of the non-sectioned GaN HEMT model are obtained according to the I<DS>, and a non-sectioned static-characteristic model is established according to the static characteristics; the dynamic characteristics of the non-sectioned GaN HEMT model are obtained according to the C<GD>, the C<GS> and the C<DS>, and a non-sectioned dynamic-characteristic model is established according to the dynamic characteristics; the non-sectioned GaN HEMT model is obtained according to the non-sectioned static-characteristic model and the non-sectioned dynamic-characteristic model. By means of the establishing method, the non-sectioned GaN HEMT model with the good convergence performance and the high accuracy can be obtained, and is further better applied to power electronic circuit simulation, and meanwhile designing and analysis of a following power converter are more convenient and efficient.
Owner:BEIJING JIAOTONG UNIV
Fabricating methods for special power electronic circuit board for power supply and power module
InactiveCN101854777AOvercome the weakness of not being able to withstand high currentEasy to expand integrationPrinted circuit assemblingElectricityHeat conducting
The invention discloses fabricating methods for a special power electronic circuit board for a power supply and a power module. The fabricating method of the special power electronic circuit board for the power supply is characterized by comprising the following step of fabricating a general power circuit electronic circuit board substrate, including the steps of fabricating a power copper wire with a tin rivet on the back side of the substrate and a power copper wire with a tinplating passing rivet hole on the front side of the substrate and combing the two copper wires. The fabricating method for the special power module comprises the steps of welding a commercially-sold power electronic element, a protective electronic element and partial control electronic elements on the special electronic circuit board and packaging the electronic elements with a heat-conducting insulated gum metal plate, wherein the power electronic element, the protective electronic element and the partial control electronic elements on a bearing metal plate with heat-conducting insulated gum on the special power electronic circuit board are fabricated by using an integrated circuit method, connected with the circuit board and packaged by using the heat-conducting insulated gum. The special power electronic circuit board has simple production and high practicability. The special power module has high integration level, high power and capability of being cooled and inserted on two surfaces.
Owner:章祖文
Vehicle drive module having improved EMI shielding
InactiveUS20050088835A9Improve performanceSmall and light and efficient configurationMagnetic/electric field screeningConversion constructional detailsModular unitModularity
EMI shielding in an electric vehicle drive is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI / RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.
Owner:ROCKWELL AUTOMATION TECH
Electromechanical inductors and transformers
InactiveUS8624700B2High energy storageIncrease energy densityDc network circuit arrangementsVariable inductancesElectrical conductorTransformer
Owner:UNIV OF FLORIDA RES FOUNDATION INC
LED Light Bulb with Removable LED Portion
Provided is an LED light bulb with separable top and bottom portions. The top portion comprises LED lamps and the bottom portion comprises a power electronics circuit for powering the LED lamps. The top and bottom portions are electrically and mechanically connected by connectors. When connected, there is a gap between the top and bottom portions. A heat sink is disposed in the gap. A hole can be present in the top portion, and the hole can be fluidically connected to the gap, thereby provided improved heat dissipation. There can be multiple ways of connecting the top and bottom portions, with each way of connecting providing a different type of light output.
Owner:STEINBERG DAN
DC power supply active protection device for substation based on fault location and protection method thereof
PendingCN110212497APrecise positioningAvoid Override Trip FaultsEmergency protection detectionMicrocontrollerControl signal
The invention discloses a DC power supply active protection device for a substation based on fault location. The protection device is arranged between a DC bus and each DC feed-out branch. The protection device comprises a single-chip microcomputer control circuit and a power electronic circuit breaker and a fault detection circuit which are connected with the single-chip microcomputer control circuit. The output end of the DC bus is connected with the input end of the power electronic circuit breaker. The output end of the power electronic circuit breaker is connected with the corresponding DC feed-out branch. The control signal output end of the single-chip microcomputer control circuit is connected with the control signal input end of the power electronic circuit breaker. The fault detection circuit comprises a voltage and current sampling circuit and a grounding fault detection circuit. According to the DC power supply active protection device, the grounding and short circuit faultof the DC system in the substation can be discovered in time, the corresponding fault DC branch can be accurately located and the voltage outputted to the feed-out branch can be timely adjusted according to the fault so that the working continuity, reliability and safety of the DC power supply system of the substation can be improved.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +4
High-voltage direct-current circuit breaker
InactiveCN105070558AReliable arc extinguishingShorten the action timeElectric switchesDc circuit breakerHigh-voltage direct current
The invention discloses a high-voltage direct-current circuit breaker comprising an alternating-current circuit breaker switch, a first power electronic circuit connected with the input end of the alternating-current circuit breaker switch at one end and used to convert direct current into alternating current, and a second power electronic circuit connected with the output end of the alternating-current circuit breaker switch at one end and used to convert alternating current into direct current, wherein the other end of the first power electronic circuit and the other end of the second power electronic circuit are connected to a direct-current transmission line. Through cooperation between the alternating-current circuit breaker switch and the power electronic circuits, direct current is converted into alternating current first, and then, alternating current is converted into direct current after arc extinguishing. Thus, direct-current arc extinguishing has the advantages achieved by alternating-current arc extinguishing, and the problem of long action time is avoided.
Owner:SHANGHAI DIANJI UNIV
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