搜索结果: 1-13 共查到“电子科学与技术 Resistance”相关记录13条 . 查询时间(0.145 秒)
Minimizing effective resistance of a graph
weighted Laplacian eigenvalues electrical network weighted graph
2015/8/10
The effective resistance between two nodes of a weighted graph is the electrical resistance seen between the nodes of a resistor network with branch conductances given by the edge weights. The effecti...
Stator resistance estimation using ANN in DTC IM drives
Induction machine direct torque control (DTC) artificial neural network stator resistance estimation
2010/10/12
Torque control of induction motors (IM) requires accurate estimation of the flux in the motor. But the flux estimate, when estimated from the stator circuit variables, is highly dependent on the stato...
Negative Differential Resistance Behavior in Delta-Doped AlInP Structure Grown by MOCVD
Delta-doped Resonant interband tunneling (RIT)
2010/12/7
An AlInP delta-doped schottky diode exhibiting negative differential resistance (NDR) behavior is demonstrated for the first time. The NDR characteristics with a peak to valley ratio of 5.5 and peak c...
A Complication of Negative Resistance Circuits Generated by Two Novel Algorithms
Negative Resistance Circuits Novel Algorithms
2010/12/7
There are two algorithms to generate a negative-resistance device which exhibits either a type-N shaped V-1 characteristic similar to a tunnel diode, or a type-S shaped V-1 characteristic similar to a...
Simulation of a Novel Bipolar-FET Type-S, Negative Resistance Circuit
Negative resistance Novel circuit Bipolar FET device Circuit simulation
2010/12/7
A new circuit which uses FET and bipolar transistor is given. It exhibits Type-S differential negative resistance and a theoretical explanation is appended along with PSPICE simulation.
Design of an Indegenised Negative Resistance Characteristics Curve Tracer
Curve tracer Negative resistance V-I characteristics plotter Negative resistance phenomenon Tracing circuitry
2010/12/8
“Negative Resistance” exhibited by a device during some portion of its V-I characteristics produces jump phenomenon, hysteresis and oscillation in the tracing circuitry. A method is presented to overc...
The Structure and Heat Dependence of Silicon Spreading Resistance Temperature Sensors
the sensor SRTS roundshaped diffusion layers
2010/12/16
The construction method of the sensor SRTS with two roundshaped diffusion layers is given. The effect of geometry on the sensor resistance is determined theoretically. An approximating method is given...
The Effect of Various Factors on the Resistance and TCR of RuO2 Thick Film Resistors—Relation Between the Electrical Properties and Particle Size of Constituents, the Physical Properties of Glass and Firing Temperature
RuO2 Thick Film Resistors Constituents Glass and Firing Temperature
2010/12/21
Thick film resistors were prepared with different variables, they included various conductive particle sizes, glass particle sizes, glass softening temperatures, thermal expansion coefficients of the ...
Modelling Thermal Resistance of Power Modules Having Solder Voids With Finite Elements
Thermal Resistance Power Modules Solder Voids Finite Elements
2010/12/21
A general thermal model to calculate the thermal resistance of a power module having rectangular die and layers has been constructed. The model incorporates a finite element computer program to solve ...
Design of a 108 Pin VLSI Package With Low Thermal Resistance
a 108 Pin VLSI Package Low Thermal Resistance
2010/12/27
The design of a 108 pin VLSI package is described. The package has low thermal resistance and can, therefore, dissipate 4 watts of power. The package design is now being used commercially in high-end ...
The Effect of Sequential Heat Treatment on Resistance and Temperature Coefficient of Resistance (TCR) of NiCr Thin Films
Sequential Heat Treatment TCR NiCr Thin Films
2010/12/28
Measurements have been made of resistivity as a function of temperature in the range 290 to 600°K for vacuum deposited NiCr thin films subjected to different heat treatments in air.
While the films p...
Defect Density and Electrical Properties of Vacuum Evaporated Copper Films From Annealing Studies of Electrical Resistance
Defect Density Electrical Properties Vacuum Evaporated Copper Films Electrical Resistance
2010/12/28
Copper films (210 – 1650 Å) were deposited onto glass microslides by vacuum evaporation. The films were subjected to heat treatment at a constant rate and the variation of electrical resistance ...
Studies on the Percentage Variation of Resistance of Polymer Thick Film (PTF) Resistors
Polymer Thick Film (PTF) Resistors carbon black polymer resin
2010/12/28
The percentage variation of resistance of polymer thick film (PTF) resistors has been studied. Two different kinds of polymer resin, i.e., epoxy resin and polyimide resin, as well as four different ki...