Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
2992 results about "Power electronics" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Power electronics is the application of solid-state electronics to the control and conversion of electric power. The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.
Synchronous and bi-directional variable frequency power conversion systems
InactiveUS6850426B2Facilitate easeLow costAc-dc conversion without reversalDc-dc conversionDigital controlAC power
A synchronous bi-directional active power conditioning system (11) suitable for wide variable frequency systems or active loads such as adjustable speed drives which require variable voltage variable frequency power management systems is disclosed. Common power electronics building blocks (100, 200) (both hardware and software modular blocks) are presented which can be used for AC-DC, DC-AC individually or cascaded together for AC-DC-AC power conversion suitable for variable voltage and / or wide variable frequency power management systems. A common control software building block (2, 5) includes a digital control strategy / algorithm and digital phase lock loop method and apparatus which are developed and implemented in a digital environment to provide gating patterns for the switching elements (3, 6) of the common power-pass modular power electronics building blocks (100, 200).
Owner:HONEYWELL INT INC
Method and apparatus for power electronics and control of plug-in hybrid propulsion with fast energy storage
InactiveUS20070068714A1Compact and inexpensiveInterconnection becomes expensivePlural diverse prime-mover propulsion mountingPower to auxillary motorsDrivetrainElectrical battery
A plug-in hybrid propulsion system includes a fast energy storage device that preserves battery life, where the energy storage elements of the hybrid drive train may be charged with externally supplied electricity as well as energy from the engine or regenerative braking. Electronic switches, passive electronics, an enclosure, controller circuitry, and / or control algorithms are used to manage the flow of power between a fuel powered engine, a battery, a fast energy storage system, traction motors, a charger, ancillary systems, an electrical distribution system, and / or a drive train.
Owner:AFS TRINITY POWER CORP
Method and apparatus for power electronics and control of plug-in hybrid propulsion with fast energy storage
InactiveUS7740092B2Compact and inexpensiveInterconnection becomes expensivePlural diverse prime-mover propulsion mountingPower to auxillary motorsElectrical batteryDistribution power system
A plug-in hybrid propulsion system includes a fast energy storage device that preserves battery life, where the energy storage elements of the hybrid drive train may be charged with externally supplied electricity as well as energy from the engine or regenerative braking. Electronic switches, passive electronics, an enclosure, controller circuitry, and / or control algorithms are used to manage the flow of power between a fuel powered engine, a battery, a fast energy storage system, traction motors; a charger, ancillary systems, an electrical distribution system, and / or a drive train.
Owner:AFS TRINITY POWER CORP
Method and apparatus for creating a dynamically reconfigurable energy storage device
ActiveUS20140312828A1Charge equalisation circuitIndicating/monitoring circuitsElectronic switchReal time management
A method and apparatus of creating a dynamically reconfigurable energy source comprised of individual, isolated, controllable energy modules, supported by software to measure and manage the energy modules and facilitate the reconfiguration, where the platform consisting of hardware, based upon an inverted H-Bridge circuitry, in combination with software which allows for real-time management, control, and configuration of the modules and uses a combination of software algorithms and localized electronic switches, to achieve a performance and functionality of the invention matching, or exceeding, traditional large, heavy, and expensive power electronics-based products used for charging, energy storage management, power inverting, and motor or load control.
Owner:GLX POWER SYST INC
LED bar
ActiveUS20100295468A1Improve efficiencyFirmly connectedPoint-like light sourceLighting support devicesComputer moduleElectric power
The present invention relates to LED bar modules where the LED groups are placed at a pixel board. The present invention further concerns a method for calibration of LEDs. It is the object of the invention to achieve a highly efficient LED bar for generating a bar of light. A further object of the invention is to store calibration data for each LED both electrically and mechanically close to the actual LED. Preferably, the main printed circuit is placed inside a heat conductive tube, where the pixel board is placed outside the heat conductive tube in a longitudinal recess, where the main printed circuit is placed inside an isolation cover. Hereby, it is achieved that the LEDs are placed on the outside of the tube in a way where heat generated from the LEDs is conducted downwards to the tube. Inside the tube, the rest of the power electronics and also the light controlling electronics are placed.
Owner:MARTIN PROFESSIONAL
Power electronics device for controlling an electric machine
InactiveUS6326761B1Small space requirementCompact designElectronic commutation motor controlMotor/generator/converter stoppersElectric machineEngineering
A power electronics device for controlling an electric machine including a power section arranged within a housing which can be closed via a cover element. The power section has a plurality of capacitors and a plurality of power semiconductors which are connected to a power bus bar. In addition, a control device is provided for controlling the power electronics device. The capacitors, power semiconductors, and control device are cooled via a cooling device which is formed as a profile having an essentially U-shaped cross section. The cooling device has two lateral limbs and a base region through which cooling ducts are arranged. A suitable cooling medium flows through the cooling ducts and the ends of the cooling ducts opposite the housing cover are closed by a covering element. The capacitors, the power semiconductors and the control device are connected to the cooling device such that thermal exchange occurs between these components and the cooling device.
Owner:ZF FRIEDRICHSHAFEN AG
Thermal Management System with Dual Mode Coolant Loops
ActiveUS20110296855A1Power to auxillary motorsCompression machines with reversible cycleNuclear engineeringDual mode
A dual mode, thermal management system for use in a vehicle is provided. At a minimum, the system includes a first coolant loop in thermal communication with a battery system, a second coolant loop in thermal communication with at least one drive train component (e.g., electric motor, power electronics, inverter), and a dual mode valve system that provides means for selecting between a first mode where the two coolant loops operate in parallel, and a second mode where the two coolant loops operate in series.
Owner:TESLA INC
Solid state light fixture with cooling system with heat rejection management
ActiveUS8651704B1Increase operating powerReduce in quantityPlanar light sourcesMechanical apparatusSemiconductor materialsElectrical battery
Systems and methods for solid-state light source heat management are provided. A solid-state light source, e.g. having one or more LEDs, can be mounted within an enclosure. In some embodiments, a heat sink associated with semiconductor material and / or power electronics can be placed on a separate side of the enclosure that is thermally insulated or separated from the state-light source. The enclosure can include a first side or portion that allows light from the solid-state-light source (e.g., LEDs) to pass through to a target area. A fluid transfer conduit may be connected to the second side or portion of the enclosure for passing a fluid (e.g., air, water, coolant, etc.) across the heat sink to transport heat generated by the power electronics and / or semiconductor material away. The heated fluid can then be routed to, as examples, an HVAC system, a vent, water heating systems, heat exchanger systems, and / or storage systems (e.g., batteries).
Owner:MUSCO
Direct Drive Wind Turbine
A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.
Owner:NORTHERN POWER SYSTEMS INC
Apparatus for transferring energy using power electronics and machine inductance and method of manufacturing same
ActiveUS20100096926A1Auxillary drivesBatteries circuit arrangementsElectrical conductorCharge current
A traction inverter circuit includes a first energy storage device configured to output a DC voltage, a first bi-directional DC-to-AC voltage inverter coupled to the first energy storage device, and a first electromechanical device. The first electromechanical device includes a first plurality of conductors coupled to the first bi-directional DC-to-AC voltage inverter, a second plurality of conductors coupled together, and a plurality of windings coupled between the first plurality of conductors and the second plurality of conductors. The traction converter circuit also includes a charge bus comprising a first conductor coupled to the second plurality of conductors of the first electromechanical device, the charge bus configured to transmit a charging current to or receive a charging current from the first electromechanical device to charge the first energy storage device via the first electromechanical device and the first bi-directional DC-to-AC voltage inverter.
Owner:GENERAL ELECTRIC CO
Direct drive wind turbine
A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.
Owner:NORTHERN POWER SYSTEMS INC
Low-cost 3D flip-chip packaging technology for integrated power electronics modules
InactiveUS6442033B1Improve performanceLow costSemiconductor/solid-state device detailsSolid-state devicesVoltage overshootLead bonding
Resistance and parasitic inductance resulting from interconnection of semiconductor chips in power modules are reduced to negligible levels by a robust structure which completely avoids use of wire bonds through use of ball bonding and flip-chip manufacturing processes, possibly in combination with chip scale packaging and hourglass shaped stacked solder bumps of increased compliance and controlled height / shape. Turn-off voltage overshoot is reduced to about one-half or less than a comparable wire bond packaged power module. Hourglass shaped solder bumps provide increased compliance and reliability over much increased numbers of thermal cycles over wide temperature excursions.
Owner:VIRGINIA TECH INTPROP INC
Low Profile Power Conversion System for Rooftop Photovoltaic Power Systems
ActiveUS20130062958A1Large voltage step-upLow profilePhotovoltaic supportsConversion constructional detailsElectric power systemLow voltage
The disclosed embodiments and principles provide a way to integrate high-efficiency, low-profile power electronics with localized maximum power point tracking (MPPT) into a rooftop shingle-based photovoltaic power system. DC-DC power converters having a height, or profile, as low as ¼ inch for a 200 W power output, are able to be included in a building-integrated photovoltaic (BIPV) roof shingle. The DC-DC power converters increase the relatively low voltage produced by two rows of series-connected photovoltaic shingles, each including photovoltaic cells, to a high voltage used by a DC-AC inverter. For example, DC-DC power converter increases the voltage produced by two rows of series-connected photovoltaic shingles from several tens of volts to approximately 400 volts. Thus, the DC-DC power converters provide a large voltage step-up using a low profile and with very high efficiency.
Owner:UNIV OF COLORADO THE REGENTS OF +1
Method and device for regulating a wind machine
A method and corresponding apparatus for regulating a system that produces electric power, the system including an electric alternator having a rotor integral with a rotating part of a wind machine to form a rotary assembly, and a power electronics module, the method including the steps of: producing an alternating current at output terminals of the alternator; converting the alternating current produced by the alternator into modulated pulses of direct current. Alternating electric current produced by the alternator is regulated by controlling the speed of rotation of the rotary assembly by resisting torque imposed by the alternator in response to modulating the pulses of continuous current produced by the converted the alternating current.
Owner:JEUMONT
Battery charging and replacing station for electric vehicles
ActiveCN102064578AAutomatic replacementWith charging monitoringBatteries circuit arrangementsElectric powerBattery chargeElectrical battery
The invention belong to the technical fields of low-voltage power distribution and power electronics, and relates to a battery charging and replacing station for electric vehicles. In the battery charging and replacing station for the electric vehicles, battery replacement and separated-box charging take the priority and entire vehicle charging takes the secondary. The battery charging and replacing station can satisfy the requirement of replenishing electric energy for large-size commercial vehicles and small-size passenger vehicles. In addition, a warehousing type automatic battery replacing system is adopted so that the functions of automatic battery replacement and automatic warehousing in / out management are achieved, and a separated-box charging system can be used for charging the batteries.
Owner:CHINA ELECTRIC POWER RES INST +1
Control system for a wind power plant with hydrodynamic gear
A wind power plant connectable to an electric grid is provided that has at least three control levels. A controller controls an angular position of the rotor blades and / or controls a setting of the reaction member of the hydrodynamic speed transformer and / or controls the power electronics of the generator. The controller is provided with predetermined setpoint characteristics depending on operating states of the wind power plant and / or the electric grid or characteristics of the wind.
Owner:VOITH PATENT GMBH
Systems and methods for providing cooling in compressed air storage power supply systems
InactiveUS20060059936A1Lower operating temperatureSmall sizeDomestic cooling apparatusAc-dc conversionThermal energyElectric machine
A system and method for cooling electrical machines (e.g., generators), sub-systems (e.g., power electronics), and components (e.g., bearings) in an electrical generation system such as a compressed air storage (CAS) energy system or a thermal and compressed air storage (TACAS) energy system is provided. Cooling is derived from the thermal expansion of a compressed gas, which may be the same gas used to drive a turbine-generator of CAS or TACAS energy system.
Owner:ACTIVE POWER INC
High temperature ceramic dielectric composition and capacitors made from the composition
ActiveUS8076257B1Highly desirable propertyExcellent dielectric constant/voltage characteristicFixed capacitor dielectricStacked capacitorsCapacitanceDielectric
A bismuth sodium titanate (Bi0.5Na0.5TiO3) base material is modified by the partial substitution of aliovalent A-site cations such as barium (as BaO) or strontium (as SrO), as well as certain b-site donor / acceptor dopants and sintering aids to form a multi-phase system, much like known “core / shell” X7R dielectrics based solely on BaTiO3. The resulting ceramic dielectric composition is particularly suitable for producing a multilayer ceramic capacitor (10) that maintains high dielectric constant (and thus the capability of maintaining high capacitance) over a broad temperature range of from about 150° C. to about 300° C. Such capacitors (10) are appropriate for high temperature power electronics applications in fields such as down-hole oil and gas well drilling.
Owner:FERRO CORP
Apparatus for transferring energy using onboard power electronics with high-frequency transformer isolation and method of manufacturing same
ActiveUS20120112702A1Batteries circuit arrangementsPropulsion by batteries/cellsElectric forceEngineering
An apparatus for transferring energy using onboard power electronics with high-frequency transformer isolation includes a power electronic drive circuit comprises a dc bus and a first energy storage device coupled to the dc bus. A first bi-directional dc-to-ac voltage inverter is coupled to the first energy storage device and to the dc bus, and a first electromechanical device coupled to the first bi-directional dc-to-ac voltage inverter. A charging system coupled to the dc bus via a charge bus comprises a receptacle configured to mate with a connector coupled to a voltage source external to the power electronic drive circuit and an isolation transformer configured to electrically isolate the charge bus from the receptacle. A controller configured to cause the charging system to supply a charging voltage to the dc bus based on a voltage received from the voltage source external to the power electronic drive circuit.
Owner:GENERAL ELECTRIC CO
Apparatus and method for rapid charging using shared power electronics
ActiveUS20110148353A1Fast chargingHybrid vehiclesMobile unit charging stationsVoltage converterEngineering
An apparatus comprises a power electronic energy conversion system comprising a first energy storage device configured to store DC energy and a first voltage converter configured to convert a second voltage from a remote power supply into a first charging voltage configured to charge the first energy storage device. The apparatus also includes a first controller configured to control the first voltage converter to convert the second voltage into the first charging voltage and to provide the first charging voltage to the first energy storage device during a charging mode of operation and communicate with a second controller located remotely from the power electronic energy conversion system to cause a second charging voltage to be provided to the first energy storage device during the charging mode of operation to rapidly charge the first energy storage device.
Owner:GENERAL ELECTRIC CO
Method and apparatus for creating a dynamically reconfigurable energy storage device
ActiveUS20170054306A1Charge equalisation circuitIndicating/monitoring circuitsElectronic switchComputer module
Owner:GLX POWER SYST INC
Electric powertrain for machine
ActiveUS7950481B2Auxillary drivesPlural diverse prime-mover propulsion mountingMechanical energyPowertrain
An electric powertrain includes an engine configured to provide mechanical energy and a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy. The electric powertrain further includes at least one electric motor operably coupled to the generator, a plurality of driving members, and at least one power electronics unit configured to control at least one of the engine and the generator. The at least one electric motor is configured to provide torque for the plurality of driving members.
Owner:CATERPILLAR INC
Drive train for a motor vehicle comprising an electric machine
InactiveUS20070284157A1Sufficiently compactReduce module costPropulsion partsSolid-state devicesElectric machineDrive shaft
In a drive train for a motor vehicle, with a converter bell arranged between an internal combustion engine and a transmission, and a drive shaft extending through the converter bell and carrying a clutch device and an electric machine together with a power converter, which comprises at least one capacitor and power electronics which are integrated into the converter bell, the capacitor and the power electronics are arranged between a stator of the electric machine and the converter bell such that they are distributed around the outer circumference of the electric machine in the radial direction and the capacitor and the power electronics are arranged such that they are in thermally conductive contact with the cooling system for the stator of the electric machine.
Owner:DAIMLER AG
Apparatus for transferring energy using power electronics and machine inductance and method of manufacturing same
A traction inverter circuit includes a first energy storage device configured to output a DC voltage, a first bi-directional DC-to-AC voltage inverter coupled to the first energy storage device, and a first electromechanical device. The first electromechanical device includes a first plurality of conductors coupled to the first bi-directional DC-to-AC voltage inverter, a second plurality of conductors coupled together, and a plurality of windings coupled between the first plurality of conductors and the second plurality of conductors. The traction converter circuit also includes a charge bus comprising a first conductor coupled to the second plurality of conductors of the first electromechanical device, the charge bus configured to transmit a charging current to or receive a charging current from the first electromechanical device to charge the first energy storage device via the first electromechanical device and the first bi-directional DC-to-AC voltage inverter.
Owner:GENERAL ELECTRIC CO
Low-Cost Minimal-Loss Flywheel Battery
InactiveUS20100283340A1Low-cost minimal-lossMinimize ball bearing radial thrustRolling contact bearingsControllers with pulse-train output signalBall bearingDc current
A low-cost minimal-loss zero-maintenance flywheel battery, to store electric power from a DC power source by conversion to kinetic energy, and regenerate electric power as needed. Its vertical spin-axis rotor assembly is supported axially by repelling annular permanent magnets, and is centered by ceramic ball bearings which have axial preload that prevents vibration and augments axial rotor support. A regenerative multi-pole permanent-magnet motor, controlled by its 2-phase stator current, and connected by power and signal conductors to power interface electronics, is integrated within the flywheel assembly, in a vacuum enclosure supported by a self-leveling structure. Sinusoidal 2-phase stator currents are controlled by high-frequency pulse-width-modulated H-bridge power electronics that draw and regenerate controlled DC current with minimal ripple, responsive to respective 2-phase rotation angle sensors, the DC power voltage, and other settings. The electronics includes logic and over-voltage protection to prevent otherwise possible damaging current and voltage.
Owner:FRADELLA RICHARD B
Electric powertrain for work machine
An electric powertrain includes an engine configured to provide mechanical energy and a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy. The electric powertrain further includes at least one electric motor operably coupled to the generator, a plurality of driving members, and at least one power electronics unit configured to control at least one of the engine and the generator. The at least one electric motor is configured to provide torque for the plurality of driving members.
Owner:CATERPILLAR INC
Apparatus for transferring energy using onboard power electronics and method of manufacturing same
An apparatus for transferring energy using onboard power electronics comprises a first energy storage device configured to output a DC voltage and a DC bus coupled to the first energy storage device, the DC bus coupleable to a high-impedance voltage source. The apparatus also comprises a braking resistor coupled to the DC bus and to a control circuit, and a controller. The controller is configured to control the control circuit to cause on the DC bus to be dissipated through the braking resistor during a regenerative braking event, cause the first energy storage device to receive a charging energy from the high-impedance voltage source through the braking resistor during a charging event, and after a threshold value has been crossed, cause the first energy storage device to receive the charging energy from the high-impedance voltage source bypassing the braking resistor during the charging event.
Owner:GENERAL ELECTRIC CO
Cabin air conditioning system with liquid cooling for power electronics
InactiveUS7334422B2Simple designDomestic cooling apparatusLighting and heating apparatusEngineeringAir conditioning
Owner:HAMILTON SUNDSTRAND CORP
Multi-Mission Frameless Airship Platform
InactiveUS20110267241A1Increase capacityInsufficient flexibilityJointsPV power plantsPhotovoltaic solar energyComputer module
Multi-Mission Frameless Airship Platform (MFAP) leverages composite material science to achieve a frameless lightweight airframe design enabling increased speed, lift and cargo capacity. Deployable / retrievable high-value modules provide enhanced operational and mission flexibility. Unified power electronics enable hybrid integration of propulsion, power generation (e.g. diesel generator, photovoltaic solar, etc.), energy storage and tethered wind-power generation for both on-grid and off-grid electrical power delivery for airborne operations and ground operations. Onboard antenna systems serve as cell phone towers.
Owner:GRIMM THOMAS +3
Power-electronic-cooling device
ActiveUS7417857B2Lower overall pressure dropImprove cooling effectSemiconductor/solid-state device detailsSolid-state devicesElectronics coolingEngineering
Owner:VALEO EQUIP ELECTRIC MOTEUR
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com