本文全面分析计算了HEMT器件的直流特性、微波和噪声参量。
A comprehensive analysis concerning the calculations of DC Characteristics, microwave and noise parameters of HEMT is given.
考虑费米能级随二维电子气浓度的变化，计算了器件的直流特性。
With the two dimensional electron gas model, considering the nonlinear shift of Fermi level with electron gas density, the DC output characteristics is calculated.
同时此系统也可以用于电镀，铝阳极氧化等电化学过程控制，以及晶体管直流特性测试等方面。
This system can be also used for the automatic control of the electro plating and aluminum anodizing process and the DC characteristic measurement of some semiconductor transistor.
从VDMOS的物理结构出发建立子电路模型，进而导出描述其交直流特性的参数及模型公式。
A sub circuit model for VDMOS is built according to its physical structure. Parameters and formulas describing the device are also derived from this model.
直流特性法分析表明，材料属电子-离子混合导电机制，且离子电导成分越多材料的湿敏特性越好。
The analysis of the characteristics of direct current shows that the material conductance is electronics-ion and the properties of the material are better with more composition of ion conductance.
当势垒厚度、势垒高度、子阱厚度、间隔层厚度、掺杂浓度改变时，可以观察到DBRTD直流特性也随之改变。
With different barrier width, barrier height, sub-well width, spacer width and n-doping concentration, the changes of DC characteristics of DBRTDs are observed and analyzed.
他计划使用直流电场技术，结合飞秒与纳秒激光工艺，对它们的光学与结构特性进行纳米设计。
He plans to nanoengineer their optical and structural properties using DC electric-field techniques, coupled with femtosecond and nanosecond laser processing.
采用带中心抽头的直流电抗器，可以方便的改变焊机动特性。
Adopting DC electric reactor with center tap can change the welding machine's dynamic characteristic conveniently.
仿真结果验证了所提补偿方法的高精度，而且不受CT负载特性、CT剩磁情况及原边电流直流成分的影响。
The simulation results verify the high precision of the proposed compensation method regardless of the waveform of ct primary current, remanent flux level, and load characteristic.
实验结果表明，以“被测试电机-直流电力测功机-负载电阻”为结构、基于数字信号处理芯片的感应电动机转矩-转速特性自动测试系统是可行的。
The experimental results demonstrate: the automatic measurement system which bases on the DC dynamometer and DSP can well measure torque-speed characteristic of induction motor.
导出了描述CCC结构直流系统稳态特性的数学模型，主要由15个基本方程构成。
The mathematical model representing the CCC-HVDC system's steady-state characteristics is derived, which is composed of 15 basic equations.
提出了一种利用地震和测井资料、综合考虑子波相位特性、直流分量和截断效应的影响，提取井旁子波的方法。
With consideration of the effects of phase characteristics, direct component and digital truncation, a method for extracting wavelet near a well by using seismic and log data is proposed.
从而解决了《弧焊电源》课程实验和直流焊机动特性评定中存在的问题。
This derices can be used for course experiments of welding power source and property evaluation of the DC welder.
文中详细讨论了开关电源输出特性与反馈回路直流增益的关系。
The relationship between output character of Switching Mode Power Supply (SMPS) and DC gain in feedback loops is discussed.
高海拔直流设备可见电晕特性的试验研究。
Testing and research on visible corona characteristics for high elevation DC equipment.
调节器的选型及参数配置情况直接影响和决定整个直流系统的运行特性。
Type and Parameters deployment of the regulators have direct effect on the operating characteristic of HVDC system.
研究了固体绝缘表面电荷对不均匀电场直流电晕起始电压、伏安特性的影响。
The effect of insulator surface charges on DC corona initial voltage and V-I characteristic in non-uniform field is studied.
通过改变CVT中压变压器绕组的布置方式，可降低其直流电阻，从而改善负载误差特性。
Through a reasonable winding arrangement of CVT, the DC resistance can be reduced largely, hence the on load error characteristic can be improved.
主要讨论了永磁直流电机的动态特性理论和测量。
This paper focuses on the theory and measurement of dynamic characteristics of permanent-magnet DC motors.
特点：饱和压降低，极好的直流电流增益特性好。
Features: Low VCE(sat), excellent DC current gain characteristics.
实验研究了取向硅钢片压磁式测力器的交流工作特性和直流磁化规律。
The alternate-current work characteristic and the direct-current magnetization of the magneto-elastic transducer with the transformer steel have been studied experimentally.
直流母线电晕特性是换流站选择母线的主要考虑因素。
The HVDC busbar corona characteristic is the main factor taken into account for choosing busbar of HVDC converter substation.
介绍无刷直流电机控制器MC33033的特性，工作原理和应用电路。
This paper introduced brushless DC motor controller MC33033's performances, working principles and application circuit.
对多馈入直流输电系统的动态特性及稳定控制与分析进行了综述。
In this paper, the dynamic characteristics, stability control and analysis of multi-infeed HVDC transmission system are reviewed.
因此，对盘形悬式绝缘子直流覆冰试验方法进行研究，对直流覆冰输电线路外绝缘特性的研究具有重大的意义。
Therefore, it has great significance to research DC icing test methods on disk-shaped suspension insulator for study of DC transmission line characteristics of external insulation.
根据外加磁场特性的不同，磁流体推进可分为直流和交流两种方式。
MHD propulsion types are classified into the AC MHD propulsion and the DC MHD propulsion by supplied magnetic field.
本文针对超临界直流锅炉运行特性，提出了一种神经网络解耦控制方法。
According to the running features of supercritical once-through boiler, the article proposes a neural network decoupling control method.
直流电机具有良好的机械特性，易于实现各种控制规律，同时直流传动控制系统的一些理论仍然是交流传动的基础。
DC motor has good mechanical character and is apt to accomplish varied control rules, and some theories about its controlling are still the basis of ac motor control.
依据永磁无刷直流电动机的数学模型及其转矩特性，分析了转矩脉动产生的多种原因，并介绍了各种有效的控制策。
According to the mathematical model and torque characteristics of permanent magnet brushless DC motor, the reasons that give rise to torque ripple have been analyzed in this paper.
依据永磁无刷直流电动机的数学模型及其转矩特性，分析了转矩脉动产生的多种原因，并介绍了各种有效的控制策。
According to the mathematical model and torque characteristics of permanent magnet brushless DC motor, the reasons that give rise to torque ripple have been analyzed in this paper.
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