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.
53results about How to "Minimal power loss" 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 supply regulator circuit and semiconductor device
InactiveUS7265999B2Slow changePreferable constant current drooping characteristicConversion with intermediate conversion to dcDc-dc conversionPower semiconductor devicePeak value
A power supply regulation circuit is provided which can achieve a preferable constant current drooping characteristic without the need for a constant current control circuit on the secondary side. During a constant current operation, a switching element (1) is turned on so as to keep constant the on duty of secondary current passing through a secondary winding (110B) of a transformer (110), so that a constant current drooping characteristic is achieved. Further, at this moment, a current limit dictating the maximum value of drain current (ID) passing through the switching element (1) is changed between first and second levels during the on time of the switching element such that the drain current (ID) has a constant peak value.
Owner:COLLABO INNOVATIONS INC
Control apparatus of semiconductor switch
InactiveUS20050286200A1Improve discrimination accuracyShorten judgment timeTransistorElectronic switchingEngineeringCounter-electromotive force
A control apparatus includes a semiconductor switch that is arranged between a DC power supply and a load to control a turning ON / OFF operation of the load, a counter electromotive force judging unit that determines whether a counter electromotive force produced on a first wiring line is greater than a threshold voltage, the first wiring line connecting the semiconductor switch to the DC power supply, and a control unit that controls the semiconductor switch so as to be turned OFF when the counter electromotive force judging unit determines that the counter electromotive force is greater than the threshold voltage.
Owner:YAZAKI CORP
Dual susceptor temperature controlled resin composition for inductive control heating and method of use
InactiveUS20090314770A1Efficient transfer of energyHeating fastLamination ancillary operationsLaminationElectrically conductiveResin matrix
A dual susceptor composition with a resin matrix formed of at least one polymer or thermoset material and magnetic or electrically conductive particles, and an inductive material structure laminated with or encapsulated by the resin matrix.
Owner:TAS ACQUISITION CO
Switching power supply
InactiveUS20050259455A1Low costMinimal number of componentAc-dc conversionApparatus with intermediate ac conversionTransformerPeak value
A switching power supply for achieving a constant current drooping characteristic of sufficient accuracy with low cost and the minimum number of components. In the switching power supply, a secondary duty limiter circuit outputs a clock signal from the time a switching element is turned off until the time the on duty of secondary current, which starts flowing to a secondary winding of a transformer, is fixed at a predetermined value. A clock signal selector circuit selects and outputs the clock signal when a load increases and the on duty of the secondary current reaches the predetermined value. Consequently, when the load increases, a direct current output voltage decreases and an output characteristic becomes a constant current drooping characteristic. At this point, when the voltage of an element current detection signal reaches an overcurrent protection reference voltage, a drain current control circuit outputs a turn-off signal for determining the turn-off of the switching element, therefore the peak current of the secondary current is kept at a fixed value.
Owner:COLLABO INNOVATIONS INC
Load driving apparatus
InactiveUS20100060177A1High efficiency in power consumptionSmall differenceElectrical apparatusElectric light circuit arrangementTerminal voltageVoltage reference
The load driving apparatus according to the present invention includes a load current setting signal generating section, a load current generating section, a reference voltage generating section and a drive voltage generating section. The load current setting signal generating section generates a desired load current setting signal. The load current generating section generates a load current based on the load current setting signal to drive the load. The reference voltage generating section generates a reference voltage based on the load current setting signal. The drive voltage generating section generates a drive voltage, supplies the drive voltage to the load, generates a between-both-terminals voltage between both terminals of the load current generating section based on the drive voltage and controls the drive voltage so that the difference between the between-both-terminals voltage and the reference voltage becomes small.
Owner:PANASONIC CORP
Programmed ballast with resonant inverter and method for discharge lamps
InactiveUS20090033236A1Low costMinimal power lossElectrical apparatusElectric light circuit arrangementPhase shiftedPower inverter
A ballast having a rapid inverter frequency control circuit that is used for programmed operation during lamps starting, during normal operation of all lamps and during no lamp(s) operation. A method and circuit controls frequency shift via a combination of different feedback circuits. A control signal for the inverter controller is synthesized as a sum of phase shifted inverter output voltage feedback signal and lamp current sense signal indicating status of each lamp connected to the ballast output.
Owner:OSRAM SYLVANIA INC
Method and apparatus for measuring and regulating current to a load
InactiveUS6011385AImprove accuracyMinimal power lossPulse techniqueElectric variable regulationEngineeringElectrical current
A device for controlling a current to a load by means of mirroring is described. Two transistor units are connected to a common reference point. By driving a current through one of the transistor units, a corresponding current is generated in the second transistor unit. A control unit, connected between the transistors can regulate a voltage difference between transistors. Accordingly, the size of the load attached is determined through mirroring with accuracy and minimal power loss.
Owner:UNWIRED PLANET
Electric power conversion apparatus for plural DC voltage sources and an AC electrical load
ActiveUS7586768B2Minimal power lossCompact structureDc network circuit arrangementsAC motor controlVoltage pulseEngineering
Owner:NISSAN MOTOR CO LTD
Control apparatus for motor control system
ActiveUS20160308475A1Accurately reducingReduce power lossAC motor controlVector control systemsPower inverterSquare waveform
A control apparatus calculates a total loss change amount that is a power loss change amount of a motor control system including respective power loss change amounts of a converter, an inverter, and a motor of the motor control system. Based on the total loss change amount, during a correction-allowed period that is a period during which square wave control is performed, the control apparatus performs correction to decrease a current output voltage command value of the converter when the current output voltage command value is determined to be greater than the output voltage of the converter at which actual total power loss change amount becomes minimum. When the current output voltage command value is determined to be less than the output voltage of the converter at which actual total power loss change amount becomes minimum, the control apparatus performs correction to increase the current output voltage command value.
Owner:DENSO CORP
Electric power conversion apparatus
ActiveUS20070194746A1Minimal power lossCompact structureDc network circuit arrangementsAC motor controlVoltage pulseEngineering
An electric power conversion apparatus includes a power converter connected to at least a first DC voltage source, a second DC voltage source and an AC electric motor. A control unit controls the power converter to generate a first PWM pulse train for supplying a first output voltage pulse train from the first DC voltage source to the AC electric motor and a second PWM pulse train for supplying a second output voltage pulse train from the second DC voltage source to the load in such a manner to form a pulse continuous in time in a final output voltage at least from each pulse of the first output voltage pulse train and a subsequent pulse of the second output voltage pulse train. A current path is provided constantly from the AC electric motor to at least one of the DC voltage sources.
Owner:NISSAN MOTOR CO LTD
Vacuum Cleaning Tool, Especially Hand-Held Nozzle, for a Vacuum Cleaner
A vacuum cleaning tool has a housing with a working chamber and a connecting socket for a vacuum hose. A brush roller is arranged in the working chamber. An air turbine is arranged in a turbine chamber between working chamber and connecting socket. The working chamber has a bottom with vacuum air ports through which a vacuum air flow enters the working chamber. The housing has an opening between working chamber and turbine chamber and a discharge opening between turbine chamber and connecting socket. The vacuum air flow passes from the working chamber into the turbine chamber and drives the air turbine and then passes through the discharge opening into the connecting socket. The brush roller acts through the vacuum air ports on a surface to be treated. A bushing on which the air turbine is fixedly mounted is rotatably supported on a support shaft mounted in the housing.
Owner:DUPRO AG
Power plant with integrated fuel gas preheating
ActiveUS20150007575A1High plant efficiencyMinimal power lossSteam useTurbine/propulsion fuel heatingNuclear engineeringPressure level
The invention refers to a CCPP comprising a gas turbine, a water steam cycle with a steam turbine and a HRSG with at least two pressure levels, and a fuel preheater for preheating the fuel of the gas turbine. The fuel preheater includes a first heat exchanger for preheating the fuel to a first elevated temperature, which is connected to a feed water line from a pressure level of the HRSG, which is below the highest HRSG pressure level, and a second heat exchanger for further preheating the fuel gas to a second elevated temperature, which is connected to the high pressure feed water with the highest pressure level of the HRSG. The disclosure further refers to a method for operating a CCPP with such a fuel preheater.
Owner:GENERAL ELECTRIC TECH GMBH
Power supply regulator circuit and semiconductor device
InactiveUS20060250823A1Slow changePreferable constant current drooping characteristicConversion with intermediate conversion to dcDc-dc conversionDevice materialEngineering
A power supply regulation circuit is provided which can achieve a preferable constant current drooping characteristic without the need for a constant current control circuit on the secondary side. During a constant current operation, a switching element (1) is turned on so as to keep constant the on duty of secondary current passing through a secondary winding (110B) of a transformer (110), so that a constant current drooping characteristic is achieved. Further, at this moment, a current limit dictating the maximum value of drain current (ID) passing through the switching element (1) is changed between first and second levels during the on time of the switching element such that the drain current (ID) has a constant peak value.
Owner:COLLABO INNOVATIONS INC
High Efficiency DC-to-DC Converter with Adaptive Output Stage
ActiveUS20160336855A1Minimal power lossConversion constructional detailsDc-dc conversionBuck converterSelf adaptive
A circuit and method for providing an improved efficiency for a DCDC converter. A power converter, comprising a buck converter comprising an adaptive output, an adaptive transconductance block configured to evaluate resistive power terms, a multiplier block configured to provide capacitive power terms, and a comparator configured to compare resistive power and capacitive power terms for determining the selection of the branches of said adaptive output. The method for improved efficiency includes providing a switching converter with an adaptive output stage comprising the steps of providing a switching converter, evaluate capacitive power loss, evaluate resistive power loss, compare capacitive power loss and resistive power loss, and lastly adapting the output stage size.
Owner:DIALOG SEMICON UK
Generator transient regulator
ActiveUS7215100B2Expensive to purchaseLow costEmergency protective circuit arrangementsDynamo-electric converter controlEngineeringConductor Coil
An apparatus for regulating a transient response of an output signal of an electrical generator. The apparatus comprises a tapped output winding means for providing a first AC signal and a second AC signal. The first and second AC signals have respective RMS values. The RMS value of the first AC signal is greater than the RMS value of the second AC signal. An AC switching means for selecting between the first AC signal or the second AC signal, and thereby providing a switched AC signal which has a duty cycle. A rectifier means for rectifying the switched AC signal and providing a rectified DC signal. The rectified DC signal has a DC signal component, a square wave signal component and a ripple signal component. The square wave signal component has a duty cycle. The duty cycle of the square wave signal component is equal to the duty cycle of the switched AC signal. A filter means for filtering the rectified DC signal and for providing the output signal. The filter means is operable to filter the rectified DC signal by averaging the square wave component and filtering the ripple component. The AC switching means is responsive to the output signal to adjust the duty cycle of the switched AC signal to regulate the output signal.
Owner:CARRIER CORP
Flexible seal and molded rigid chamber
InactiveUS20090184514A1Minimal power lossProvide noise attenuationSleeve/socket jointsPipeline expansion-compensationEngineeringExpansion chamber
A connection between an expansion chamber outlet and a rubber cuff that accommodates an inlet portion of a throttle body exhibits an overmolded, hot plate or spin weld type of connection between an expansion chamber wall outlet portion and the rubber cuff. The rubber cuff may have a bellow in it to absorb shock and force from the throttle body. The rubber cuff may be insert molded around the expansion chamber outlet such that the joined interface between the rubber cuff and the expansion chamber is from the molding. The molded interface prevents separation due to air forces through the chamber and cuff. A cuff recession on a cuff inside diameter receives a protuberance of the throttle body inlet portion. A band clamp fits around the outside diameter of the cuff, adjacent the throttle body inlet protuberance, to prevent movement relative to the throttle body.
Owner:DENSO INTERNATIONAL AMERICA
Hydraulic system of a gear box
ActiveUS20100216597A1Minimal power lossGuaranteed functionFluid actuated clutchesGearing controlControl theoryMotronic
An automatic vehicle transmission comprises a first oil supply unit (10) with at least one mechanically driven first pump (11) and a second oil supply unit (20) with at least one electrically driven second pump (21), and a valve device (14) and a clutch system (1). The second oil supply unit (20) supplies the clutch system (1), during a first operating condition, and the first oil supply unit (10) supplies the clutch system (1), during a second operating condition.
Owner:ZF FRIEDRICHSHAFEN AG
Apparatus and method for regulating an SLIC supply voltage
InactiveUS7092517B2Minimal power lossInterconnection arrangementsCurrent supply arrangementsEngineeringControl circuit
Control circuit and method for regulating the supply voltage of an SLIC circuit (15), having a monitoring circuit (36) for calculating an SLIC supply voltage which is required to reach a nominal supply current (Inom) for an analogue terminal (2) which is connected to the SLIC circuit (15); and having a DC / DC converter (53), which is controlled by the monitoring circuit (36), for converting a battery voltage (Vbatt) to the calculated SLIC supply voltage.
Owner:INTEL CORP
Power plant with integrated fuel gas preheating
ActiveUS10006313B2Improve efficiencyMinimal power lossSteam useGas turbine plantsPower stationNuclear engineering
The invention refers to a CCPP comprising a gas turbine, a water steam cycle with a steam turbine and a HRSG with at least two pressure levels, and a fuel preheater for preheating the fuel of the gas turbine. The fuel preheater includes a first heat exchanger for preheating the fuel to a first elevated temperature, which is connected to a feed water line from a pressure level of the HRSG, which is below the highest HRSG pressure level, and a second heat exchanger for further preheating the fuel gas to a second elevated temperature, which is connected to the high pressure feed water with the highest pressure level of the HRSG. The disclosure further refers to a method for operating a CCPP with such a fuel preheater.
Owner:GENERAL ELECTRIC TECH GMBH
Programmed ballast with resonant inverter and method for discharge lamps
InactiveUS7626344B2Low costMinimal power lossElectrical apparatusElectric light circuit arrangementResonant inverterPhase shifted
Owner:OSRAM SYLVANIA INC
Load driving apparatus
InactiveUS8159140B2Efficient power consumptionSmall differenceElectrical apparatusElectroluminescent light sourcesTerminal voltageVoltage reference
Owner:PANASONIC CORP
System for transmission of electric power
InactiveUS7759910B2Minimal power lossReduce power consumptionReactive power adjustment/elimination/compensationElectric variable regulationElectric power transmissionElectric power system
A high voltage AC transmission cable system for transmitting power between two points, each connected to one or more power networks, and a method to operate the system. At least one transformer is arranged at each end of the AC transmission cable, wherein at least one of the transformers is arranged to operate the transformer at a voltage whereby losses due to reactive power transport and dielectric losses are minimized. The AC cable is run at a variable voltage regulated such that the voltage is a function of the load for the transmission cable. This operating voltage is not necessarily the same as the nominal voltages in the connection points. A control and communication system and a graphical user interface for carrying out the method are also provided.
Owner:ABB RES LTD
Compound Optical Combiner
ActiveUS20140314367A1Minimizing insertion lossRelatively large bandwidthCoupling light guidesPhysics
A compound optical combiner for combining multiple optical signals includes a set of combiners. The set of combiners includes at least one polarization combiner optically connected to at least one non-polarization combiner. The non-polarization combiner combines a first set of input signals while preserving a polarization of each input signal in the first set of signals. The polarization combiner combines a second set of input signals while converting the polarization of at least one input signal in the second set of signals.
Owner:MITSUBISHI ELECTRIC CORP +1
Systems and methods of efficient band amplification
ActiveUS7903592B2Minimal componentMinimal power lossAmplifier with semiconductor-devices/discharge-tubesSubstation equipmentMulti bandAudio power amplifier
Owner:RFS TECH INC
Power combiner/divider using mutual inductance
Disclosed is a power divider circuit providing a mutual inductance and including a first primary inducing element having a first terminal connected with a first output port and a second terminal connected with a second primary inducing element having a first terminal connected with a second output port and a second terminal connected with the first primary inducing element and magnetically and mutually coupled with the first primary inducing element, a sub inducing element having a first terminal connected with an input port and a second terminal connected with the second terminal of the first primary inducing element and the second terminal of the second primary inducing element, and an isolation network connected between the first output port and the second output port. The sub inducing element is magnetically and mutually coupled with each of the first primary inducing element and the second primary inducing element.
Owner:SAMSUNG ELECTRONICS CO LTD +1
Control apparatus of semiconductor switch
InactiveUS7791853B2Improve discrimination accuracyQuickly cut off a circuitTransistorElectronic switchingElectricityCounter-electromotive force
A control apparatus includes a semiconductor switch that is arranged between a DC power supply and a load to control a turning ON / OFF operation of the load, a counter electromotive force judging unit that determines whether a counter electromotive force produced on a first wiring line is greater than a threshold voltage, the first wiring line connecting the semiconductor switch to the DC power supply, and a control unit that controls the semiconductor switch so as to be turned OFF when the counter electromotive force judging unit determines that the counter electromotive force is greater than the threshold voltage.
Owner:YAZAKI CORP
Retrofitting a vehicle to transfer mechanical power out of an engine compartment
InactiveUS8720618B1Small sizeAvoid damageAuxillary drivesGearingOperant conditioningElectric generator
A vehicle is retrofitted with a secondary power generation system having a Mechanical Power Transfer System (MPTS) and an electrical generator. The MPTS transfers power from an engine crankshaft within an engine compartment to a generator shaft of the electrical generator disposed outside of the engine compartment. Retrofitting the vehicle with the MPTS allows the electrical generator to be attached to a portion of a chassis of the vehicle that is outside of the engine compartment. Attachment of the electrical generator outside the engine compartment avoids the tight space constraints and harsh operating conditions (high operating temperatures) within the engine compartment. Thus a larger, more powerful generator that requires less maintenance is realized. Additionally, the MPTS does not include any Power Take-Off mechanism, clutch system, or disengagement mechanism resulting in more efficient power transfer and in an overall increase in the amount of electrical energy generated than in conventional techniques.
Owner:AURA SYST INC
Addition circuit for digital data with a delayed saturation operation for the most significant data bits
InactiveUS6868432B2Minimal power lossOperation can be causedComputation using non-contact making devicesSynchronising arrangementData valueData bits
An addition circuit for digital data includes a digital adder for the addition of digital input data values present at data inputs of the digital adder to form a summation output data value, at an output of the digital adder. The data inputs have a predetermined data bit width n. A saturation circuit for limits the summation output data value present at a data input of the saturation circuit to be within a range determined by an upper threshold data value and a lower threshold data value. The n−m least significant data bits of the summation output data value are present directly at the data input of the saturation circuit, whereas the m most significant data bits of the summation output data value are switched through to the data input of the saturation circuit via a clock-state-controlled latch register.
Owner:LANTIQ BET GMBH & CO KG
Spacecraft momentum management using solar array
ActiveUS8868263B2Minimal power lossEliminate requirementsCosmonautic vehiclesCosmonautic power supply systemsMomentumEngineering
Stored momentum on a spacecraft is managed by determining a target profile of stored momentum as a function of time for the spacecraft; measuring a difference between a momentum value actually stored on the spacecraft and a desired momentum value, where the desired momentum value substantially conforms to the target profile at a particular time; reducing the difference by producing a torque on the spacecraft, where the torque results from selectively controlling at least one solar array position offset angle, the offset angle being an offset of at least one solar array of the spacecraft from a nominal sun pointing direction.
Owner:MAXAR SPACE LLC
Wireless data and power transfer over an inductive telemetry link
ActiveUS9872089B2Efficient powerIncrease data rateNear-field transmissionElectric signal transmission systemsFull cycleElectric power transmission
A telemetry device includes a resonant inductive link with a primary LC tank and secondary LC tank configured to resonate at a carrier frequency. A modulator assembly in communication with the secondary LC tank implements data-synchronized cyclic on-off keying modulation (COOK) to periodically create a short across the secondary LC tank in response to a pulse from a phase selector and phase-locked loop. During the full cycle-length of the short, data can be transmitted across the inductive link while the charge across the secondary LC tank is preserved. Power may be transferred across the link during non-shorted cycles.
Owner:RGT UNIV OF CALIFORNIA
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