The DC bias

Research on the DC Bias Phenomena of Large Power Transformers

大型电力变压器直流偏磁现象的研究

Using Newton iteration analysis solution may get the DC bias voltage of inputting Ebers-Moll Model .

用牛顿迭代法分析可解得输入Ebers-Moll模型的直流偏置电压。

By applying the DC bias voltage to substrate , the intensity of emission spectroscopy was analyzed .

随着基底负偏压的加入，谱线强度先减小而后增大；

The DC bias dependence of grain boundary resistance provides an indirect evidence for the IBLC model .

晶界电阻随直流偏压变化的关系也为IBLC提供了间接的证据。

The DC bias field can shift the temperature Tm at which the dielectric constants has its maximum value towards the higher value .

在施加偏置电场后，其介电常数出现极大值的温度Tm向高温方向移动，这可用场致相变加以解释。

Then the DC bias circuit is given . The layout is simulated with Momentum simulator in ADS and the results are accord with the demand of the design .

然后，设计了直流偏置电路，给出了整体电路版图的Momentum二维电磁仿真结果，结果满足设计指标的要求。

Because of the DC bias voltage power source , CTI-830 can only deposit single metal compound coating , which hinders the improvement of quality of the coatings .

CTI-830型镀膜机由于采用的是直流偏压电源，并且只能进行单一金属化合物的涂层，产品质量的提高工作遇到了瓶颈。

This fault current limiter has two cores , AC winding , DC bias winding and a rectifier circuit and its control loop . And the DC bias current is no longer supplied by the DC power directly , but through the normal load current rectifier .

此种限流器由两个铁心、交流绕组、直流偏置绕组和整流电路及其控制回路构成，其直流偏置电流不再由直流电源直接提供，而是通过对正常负荷电流整流获得。

To compensation and suppression the transformer DC bias , appropriate measures were taken .

针对新型恒流源中变压器的直流偏磁问题，分析其产生的原因并采取相应的措施进行补偿或抑制。

A squeeze-film damping model for flexible cantilever microbeam under the effect of DC bias voltage

考虑直流偏置电压影响的弹性悬臂微梁挤压膜阻尼新模型

Harmonic analysis of magnetizing current is performed to observe the effect of DC bias and alternating voltage on each harmonic component . 2 .

对励磁电流进行谐波分析，研究了直流偏置量和交流电压对各次谐波分量的影响。

This paper experimentally investigates the effect of DC bias voltage on the convolution efficiencies of air-gap coupled acoustoelectric convolvers which are made of various surface-treated silicon strips .

本文主要是实验研究不同表面处理的硅片和直流偏压对隙式实时声表面波（SAW）声电卷积器卷积效率的影响。

In this paper , the reasons of DC bias contained in the output voltage of double close-loop controlled inverter are discussed , and the methods for detecting and digital adjusting DC bias with high precision are also analyzed .

本文讨论了双闭环控制逆变器输出电压直流分量产生原因，分析了逆变器输出电压直流分量检测与高精度数字调节方法。

The phenomenon of DC bias is caused by the electric potential difference between the earthing neutrals of transformer . The influence of DC magnetic bias on transformer is concerned by the designers , producers and users .

直流偏磁现象是由于电力系统中变压器接地中性点间存在直流电位差而产生的，变压器设计、制造和使用部门都非常关心直流偏磁对大型电力变压器运行性能的影响。

The Effect of Substrate DC Bias on the RF Sputtering Co-Cr Film

基板直流偏压对高频溅射Co-Cr膜的影响

The cause of the DC bias of the main transformer in the full bridge inverter has been analyzed .

分析了全桥逆变器功率变压器产生直流偏磁的机理；

The influence of the DC bias on the propagation of acoustic waves in the switch part is investigated .

着重研究了声开关部分所外加的直流偏压对在该器件中传播的声波的影响。

The effects of DC reverse bias voltage and modulation intensity on pulse duration and extinction ratio were discussed .

分析了反向偏置电压和调制深度对于脉冲宽度和消光比的影响，对驱动参数进行了优化；

Greatly different from previous works , the matching circuits and DC bias networks are bent many times , for minimizing the LNA .

与以往同类工作有很大不同，为了实现LNA小型化的目的，对匹配电路和直流偏置网络采用多次曲折线的形式。

It is shown by condition tests that resonance frequences decrease with increasing the excitation voltage or DC bias and with decreasing the effective length of the sample , thereby lowering Young 's modulus of it .

条件试验表明，共振频率随激发电压、直流偏压的增加而减小，随试样有效长度的减小而降低，从而使杨氏模量降低。

The phenomenon of DC magnetic bias analysis and electromagnetic field calculating are combined in this paper and the running performance is simulated with different magnetic bias DC . Firstly , the reasons of DC magnetic bias on transformer are studied .

本文将直流偏磁现象与电磁场计算有机地结合在一起，对变压器在不同直流偏磁下的运行性能做了仿真和分析。首先，本文介绍了产生变压器直流偏磁的原因。

After comparison of the conventional methods to eliminate the DC bias , a novel method of eliminating the DC bias in the full bridge inverter based on UC3879 has been proposed .

在对现有抗偏磁措施进行比较的基础上，提出了一种基于UC3879的移相全桥逆变器直流偏磁抑制措施。

The Design of the Broad-Band Microwave Amplifier DC Bias Circuits

一种宽带微波放大器偏置电路的设计

Moreover , the microstrip-waveguide transition and the circuit for DC bias in the VCO are analyzed , and the analysis is generally useful for design of millimeter-wave planar circuit .

此外，文中还对W频段微带结构直流偏置网络、微带波导过渡等外围电路进行了仿真优化，设计方法和结论对毫米波微带电路设计具有通用的参考价值。

UWB doublet can be generated when the modulation signal is large enough and the DC bias is near the minimal or maximum point .

而当偏置电压工作在调制器最小传输点或最大传输点附近时，且调制信号足够大时，可以生成UWBDoublet。

Ion beam sputtering deposited Ni was used as etching mask . The measured etching rates increased with the increasing ICP dc bias .

采用离子束溅射生长的Ni作为刻蚀掩模，刻蚀速率随ICP直流偏压的增加而增加。

The effect of the incident light spectrum and the waveguide electrode 's DC bias voltage on the modulation sensitivity is discussed .

讨论了入射光谱分布对调制灵敏度的影响，以及波导电极直流偏置电压对保证调制灵敏度的作用。

Combined with the inductor core loss models under sine wave excitation , the influences of DC bias magnetic field and rectangular wave excitation on core loss are studied .

结合正弦波激励下的电感磁损模型，研究了直流偏置磁场以及矩形波激励这两种情况对磁损的影响。

The simulation results indicate that lower operation point can be more advantageous against the DC bias effects .

仿真结果表明，变压器运行工作点降低对提高设备耐受直流偏磁干扰的能力有积极的作用。

For simplicity , the injection current model for steel plates with defects is assumed to be the usual DC bias .

为简单起见，注入电流模型采取给带有缺陷的钢板直接通以均匀直流电。