Patents
Literature
35results about "Inductance without magnetic core" 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
Systems using multi-layer-multi-turn high efficiency inductors
ActiveUS20130208390A1Higher resistive lossIncrease qualify factorTransformers/inductances coils/windings/connectionsInternal electrodesElectrical resistance and conductanceElectricity
Owner:NUCURRENT INC
Multi-layer-multi-turn high efficiency inductors for an induction heating system
ActiveUS20130200070A1Higher resistive lossLower quality factorTransformers/inductances coils/windings/connectionsInternal electrodesElectrical resistance and conductanceElectricity
A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.
Owner:NUCURRENT INC
Multi-layer-multi-turn high efficiency inductors with cavity structures
ActiveUS20130200976A1Higher resistive lossLower quality factorInternal electrodesTransformers/inductances coils/windings/connectionsElectrical resistance and conductanceElectrical conductor
A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.
Owner:NUCURRENT INC
Method for operation of multi-layer-multi-turn high efficiency inductors with cavity structure
ActiveUS20130208389A1Higher resistive lossIncrease qualify factorTransformers/inductances coils/windings/connectionsInternal electrodesElectrical resistance and conductanceElectricity
A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.
Owner:NUCURRENT INC
Method for operation of multi-layer-multi-turn high efficiency inductors
ActiveUS20130200722A1Higher resistive lossLower quality factorInternal electrodesTransformers/inductances coils/windings/connectionsElectrical resistance and conductanceElectrical conductor
A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.
Owner:NUCURRENT INC
Method for operation of multi-layer-multi-turn high efficiency tunable inductors
ActiveUS20130201589A1Higher resistive lossLower quality factorInternal electrodesTransformers/inductances coils/windings/connectionsElectrical resistance and conductanceElectrical conductor
A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.
Owner:NUCURRENT INC
Microwave tunable inductor and associated methods
ActiveUS7148783B2Transformers/inductances coils/windings/connectionsInductance without magnetic coreMicrowaveSpiral inductor
The inductor, preferably a microwave tunable inductor, includes first and second wires twisted together to define a double helix having a first end and second end with a plurality of twists therebetween. First and second terminals are at the first end of the double helix, and a connection at the second end of the double helix electrically connects the first and second wires in series. The inductance is tuned by adjusting a number of twists in the double helix, and the inductance includes a linear tuning range based upon between about 3 to 10 twist for a tuning range of about 7–12 Nanohenries. The inductor can also resonate and filter, and the double helix affords numerous advantages over conventional single helix inductors.
Owner:HARRIS CORP
On-chip integrated voltage-controlled variable inductor, methods of making and tuning such variable inductors, and design structures integrating such variable inductors
InactiveUS20090189725A1Multiple-port networksTransformers/inductances coils/windings/connectionsInductorVoltage control
On-chip integrated variable inductors, methods of making and tuning an on-chip integrated variable inductor, and design structures embodying a circuit containing the on-chip integrated variable inductor. The inductor generally includes a signal line configured to carry an electrical signal, a ground line positioned in proximity to the signal line, and at least one control unit electrically coupled with the ground line. The at least one control unit is configured to open and close switch a current path connecting the ground line with a ground potential so as to change an inductance of the signal line.
Owner:GLOBALFOUNDRIES INC
Continuously tunable inductor with variable resistors
InactiveUS20110260819A1Inductance without magnetic coreContinuously variable inductances/transformersClosed loopEngineering
An integrated tunable inductor includes a primary inductor having a plurality of inductor turns, at least one closed loop eddy current coil proximate the primary inductor, and at least one variable resistor integrated in series with the eddy current coil.
Owner:TAIWAN SEMICON MFG CO LTD
Microelectromechanical tunable inductor
ActiveUS7710232B1Transformers/inductances coils/windings/connectionsElectrostatic generators/motorsIn planeOptoelectronics
A microelectromechanical tunable inductor is formed from a pair of substantially-identically-sized coils arranged side by side and coiled up about a central axis which is parallel to a supporting substrate. An in-plane stress gradient is responsible for coiling up the coils which. The inductance provided by the tunable inductor can be electrostatically changed either continuously or in discrete steps using electrodes on the substrate and on each coil. The tunable inductor can be formed with processes which are compatible with conventional IC fabrication so that, in some cases, the tunable inductor can be formed on a semiconductor substrate alongside or on top of an IC.
Owner:NAT TECH & ENG SOLUTIONS OF SANDIA LLC
Inductors and methods of operating inductors
InactiveUS20090251267A1Electrical resistance increaseIncreases magnitudeImpedence networksInductances/transformers/magnets manufactureElectrical resistance and conductanceInductor
An inductor may include a conductive line including a material in which an electrical resistance varies depending on an electric field applied to the material and / or first and second electrodes electrically connected to first and second end portions of the conductive line, respectively. A method of operating an inductor may include applying current to a conductive line of the inductor. The conductive line may include a material in which an electrical resistance may vary depending on an electric field applied to the material. The current may be applied to the conductive line via first and second electrodes electrically connected to first and second end portions of the conductive line, respectively.
Owner:SAMSUNG ELECTRONICS CO LTD
Variable inductor and semiconductor device using same
ActiveUS20130140672A1Efficient changeSemiconductor/solid-state device detailsSolid-state devicesElectrical conductorDevice material
A variable inductor includes a spiral inductor, a loop conductor, and a switch for opening or short-circuiting an end of the loop conductor. The loop conductor is formed in a direction perpendicular to the spiral inductor and is used for adjusting the inductance value of the spiral inductor by opening or short-circuiting the end of the loop conductor by the switch.
Owner:PANASONIC CORP
Method for manufacture of multi-layer-multi-turn high efficiency inductors
ActiveUS9300046B2Higher resistive lossIncrease qualify factorInternal electrodesTransformers/inductances coils/windings/connectionsElectricityElectrical resistance and conductance
A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.
Owner:NUCURRENT INC
On-chip integrated voltage-controlled variable inductor, methods of making and tuning such variable inductors, and design structures integrating such variable inductors
InactiveUS8138876B2Multiple-port networksTransformers/inductances coils/windings/connectionsEngineeringInductor
On-chip integrated variable inductors, methods of making and tuning an on-chip integrated variable inductor, and design structures embodying a circuit containing the on-chip integrated variable inductor. The inductor generally includes a signal line configured to carry an electrical signal, a ground line positioned in proximity to the signal line, and at least one control unit electrically coupled with the ground line. The at least one control unit is configured to open and close switch a current path connecting the ground line with a ground potential so as to change an inductance of the signal line.
Owner:GLOBALFOUNDRIES INC
Planar inductor using liquid metal mems technology
InactiveCN1971776ASemiconductor/solid-state device detailsSolid-state devicesElectrical conductorLiquid state
Owner:AGILENT TECH INC
Continuously tunable inductor with variable resistors
InactiveCN102237172AInductance without magnetic coreElectric component structural associationClosed loopEddy current
The invention provides an integrated continuously tunable inductor and a method for adjusting the tunable inductor integrated in an integrated circuit. The integrated tunable inductor includes a primary inductor having a plurality of inductor turns, at least one closed loop eddy current coil proximate the primary inductor, and at least one variable resistor integrated in series with the eddy current coil. The inductance is continuously tunable across a range of inductances.
Owner:TAIWAN SEMICON MFG CO LTD
Tunable capacitively loaded transformer providing switched inductance for rf/microwave integrated circuits
InactiveUS20100123536A1Networks with variable switch closing timeInductance without magnetic coreMicrowaveTransformer
A tunable transformer providing switched inductance includes a primary winding and a secondary winding. A switch is connected to the secondary winding of the transformer. At least one capacitor is also connected to the secondary winding of the transformer with the switch.
Owner:AUTOLIV ASP INC
Transistor and tunable inductance
According to a first aspect embodiments provide a transistor including at least one gate region between at least one drain region and at least one source region, wherein a ratio between a width of the gate region and a length of the gate region exceeds 300.
Owner:INFINEON TECH AG
MEMS adjustable suspension spiral inductor
ActiveCN109559869AChange spacingDifferent inductanceTelevision system detailsImpedence networksMicrocomputerSmart antenna
The invention relates to an MEMS adjustable suspension spiral inductor, and belongs to the technical field of a microcomputer electric device and communication. An upper electrode is arranged betweentwo segments of suspension spiral inductors, the distance between the upper electrode and a lower electrode is adjusted by controlling a driving signal between the upper electrode and the lower electrode, the magnetic flow distribution is changed by changing transverse distance and longitudinal distance between metal coils in a left-side suspension spiral inductor and a right-side suspension spiral inductor and by changing longitudinal distance between the two suspension spiral inductors and a signal transmission line, an inductance value is adjusted, and the required inductance is obtained. With the adoption of the adjustable suspension spiral inductor, the adjustable suspension spiral inductor can be compatible with other MEMS devices for fabrication and is applied to the communication field of a tunable intelligent antenna. Compared with an adjustable inductor, the adjustable suspension spiral inductor has the advantages that the structural area can be reduced, the parasitic effectis reduced, the process flow is simplified, and continuous and adjustable inductance value is achieved.
Owner:TSINGHUA UNIV
A mems adjustable suspended spiral inductor
ActiveCN109559869BChange spacingDifferent inductanceTelevision system detailsImpedence networksMicrocomputerSpiral inductor
Owner:TSINGHUA UNIV
Voltage-controlled adjustable inductor
ActiveCN106298165AChange inductanceAppropriate inductanceInductance without magnetic coreElectric component structural associationSemiconductor materialsInductor
The embodiment of the invention discloses a voltage-controlled adjustable inductor which comprises a field effect transistor and an inductor coil, wherein the inductance coil consists of a conductive core body and an insulating layer; the surface of the conductive core body is wrapped by the insulating layer; the inductance coil comprises a coil part and an electrode part; the coil part is arranged in the field effect transistor; one end of the electrode part is connected with one end of the coil part; the other end of the electrode part exposes outside the voltage-controlled adjustable inductor by the electrode of the field effect transistor to form an inductance electrode; the surface of the coil part is provided with at least two contact points; the tail of the conductive core body at the position of the contact points is not covered with the insulating layer, but is covered with a first semiconductor material; the type of the first semiconductor material is as same as that of a semiconductor material of a doping region of a source electrode or a drain electrode; the contact points are positioned in a conductive channel; the number of the contact points positioned in the conductive channel is changed along with the change of the width of the conductive channel, so that the inductance amount of the adjustable inductor can be adjusted by changing the voltage of a grid electrode.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
Variable inductor and semiconductor device using same
ActiveUS9324778B2Efficient changeSemiconductor/solid-state device detailsTransformers/inductances coils/windings/connectionsElectrical conductorSpiral inductor
Owner:PANASONIC CORP
Switch-type phase shifter
PendingCN112865760AMultiple-port networksInductance without magnetic coreControl signalSoftware engineering
A switch-type phase shifter including a phase shifting unit is provided. The phase shifting unit includes two half circuits and a first switch connected to the half circuits and receiving a first control signal. Each half circuit includes a first variable capacitor, a second variable capacitor, a second switch and a variable inductor. The first end and second end of the first variable capacitor are coupled to the input end and the control end of the half circuit respectively. The first end and second end of the second variable capacitor are coupled to the output end and control end of the half circuit respectively. The first and second ends of the second switch are coupled to the output end and input end of the half circuit respectively, and the third end of the second switch is coupled to the control end of the half circuit and receives a control signal. The first end and the second end of the variable inductor are coupled to the input end and output end of the half circuit respectively.
Owner:IND TECH RES INST
Coin detection antenna and coin processing device
A coin detection antenna includes a substrate and an air core coil in a track shape including a wiring pattern provided on the substrate, and a width of an air core of the air core coil in a short-side direction is equal to or less than twice a thickness of a smallest coin having a smallest thickness of coins to be detected.
Owner:FUJI ELECTRIC CO LTD
Microwave tunable inductor and associated methods
ActiveUS20060097838A1Transformers/inductances coils/windings/connectionsInductance without magnetic coreHelical lineSpiral inductor
The inductor, preferably a microwave tunable inductor, includes first and second wires twisted together to define a double helix having a first end and second end with a plurality of twists therebetween. First and second terminals are at the first end of the double helix, and a connection at the second end of the double helix electrically connects the first and second wires in series. The inductance is tuned by adjusting a number of twists in the double helix, and the inductance includes a linear tuning range based upon between about 3 to 10 twist for a tuning range of about 7-12 Nanohenries. The inductor can also resonate and filter, and the double helix affords numerous advantages over conventional single helix inductors.
Owner:HARRIS CORP
Coin detection antenna and coin processing device
ActiveUS20190164371A1More reliably detectedReliable detectionCoin testingCoin countersEngineeringAir core
A coin detection antenna includes a substrate and an air core coil in a track shape including a wiring pattern provided on the substrate, and a width of an air core of the air core coil in a short-side direction is equal to or less than twice a thickness of a smallest coin having a smallest thickness of coins to be detected.
Owner:FUJI ELECTRIC CO LTD
Variable inductance inductor and variable inductance inductor module
ActiveUS20160372247A1Well formedInductance without magnetic coreContinuously variable inductances/transformersPower flowElectrical conductor
A variable inductance inductor includes an inductor unit having a coil pattern; and at least one inductance controlling unit configured to vary a contact area between the coil pattern and a moveable conductor unit to change a current path.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD
A voltage-controlled adjustable inductor
ActiveCN106298165BChange inductanceAppropriate inductanceInductance without magnetic coreElectric component structural associationSemiconductor materialsEngineering
The embodiment of the invention discloses a voltage-controlled adjustable inductor which comprises a field effect transistor and an inductor coil, wherein the inductance coil consists of a conductive core body and an insulating layer; the surface of the conductive core body is wrapped by the insulating layer; the inductance coil comprises a coil part and an electrode part; the coil part is arranged in the field effect transistor; one end of the electrode part is connected with one end of the coil part; the other end of the electrode part exposes outside the voltage-controlled adjustable inductor by the electrode of the field effect transistor to form an inductance electrode; the surface of the coil part is provided with at least two contact points; the tail of the conductive core body at the position of the contact points is not covered with the insulating layer, but is covered with a first semiconductor material; the type of the first semiconductor material is as same as that of a semiconductor material of a doping region of a source electrode or a drain electrode; the contact points are positioned in a conductive channel; the number of the contact points positioned in the conductive channel is changed along with the change of the width of the conductive channel, so that the inductance amount of the adjustable inductor can be adjusted by changing the voltage of a grid electrode.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
Superconducting tunable inductance
PendingUS20260074102A1Transformers/inductances detailsInductance without magnetic coreGround planeElectric current flow
A superconducting integrated circuit is fabricated by depositing a ground plane to at least partially overlie a substrate, depositing an insulating layer to at least partially overlie the ground plane, depositing a superconducting layer to at least partially overlie the insulating layer, and forming a superconducting feature in the superconducting layer. An inductance of the superconducting feature is tunable by adjusting a bias current in the ground plane. The ground plane is electrically communicatively coupleable to an electrical ground. Depositing a ground plane includes depositing a first superconducting material to at least partially overlie the substrate and depositing a second superconducting material to at least partially overlie the first superconducting material. A second critical current density of the second superconducting material is higher than a first critical current density of the first superconducting material.
Owner:D WAVE SYSTEMS INC
Coil arrangement and transformer with low inter-winding capacitance
ActiveCN107077953BTransformers/inductances coils/windings/connectionsInductance without magnetic coreCapacitanceElectrical conductor
A coil arrangement (1) with low interwinding capacitance is disclosed, comprising a bobbin (4) made of electrically insulating material (5) and comprising a tubular wall (6). The coil is mechanically supported by said bobbin (4) and comprises a first set of conductor windings (11) on the outside of said wall (6) and a second set of conductor windings (13) on the inside of said wall (6). ).
Owner:国民太阳能有限责任公司