电路

The article makes a comparison among different types of bus, bus transmission signal and several familiar topologies of front-end converters and load-end converters. Finally, the half bridge converter with full-wave rectifier based on the high-frequency parallel-type AC bus bar is chosen as circuit structure and optimized. The working mode under different condition of the circuit is analyzed and a mathematical model is set up under continuous current mode. Simulation result is used as comparison.

通过对比不同类型的母线、母线传输信号以及各种常见的前端变换器拓扑和负载变换器拓扑，确定了基于并联型高频交流母线的半桥变换器加全波整流作为电路拓扑，并优化了电路的结构，分析了基于不同工作状态下的电路结构并建立电流连续模式的数学模型，并与软件仿真结果进行对比。

Deletion of C2 removes the averaging function and provides a precision full-wave rectifier, and deletion of C1 provides an absolute value generator.

如果去掉 C2，电路就不再具有平均值滤波功能，只是一个精密全波整流器，如果去掉 C1，电路就变成求绝对值的电路。

The article analyses the general situation of topology technology for single-phase PFC,discusses the development of topology technology for single-phase PFC from characteristic aspect and gives out the trend of development of topology technology for single-phase PFC in future.

文章分析了单相功率因数校正电路技术的概况，从实现的方式及其特点等方面较系统地论述了单相有源功率因数校正电路拓扑技术近期的发展，并指出了今后单相功率因数校正电路技术的发展趋势。

The model of circuit fault propagation based on CA has been applied into grid circuit, in which CA fault model has been studied, and the process of fault propagation has been illustrated according to the evolving rules, the effectiveness of this model has been validated by simulating results as well.

将基于元胞自动机的电路故障传播模型应用到网格电路中，研究该电路故障的元胞自动机模型，及其按照规则演化的故障传播过程，通过仿真，验证了模型的有效性。

Feedback is from the cathode circuit to the grid circuit via the capacitive divider C2 and C3. C3 is variable, to allow exact tuning to 1.00 MHz.

阴极到第一栅的回授电路是通过C2和C3组成的电容分压电路实现的。C3用可变电容以似的电路能在1MHZ上准确震荡。

The Hall probe measurement circuit is mainly composed by the Hall probe, the non-idiostatic offset circuit, the signal amplification circuit, the automatic range conversion circuit and the A/D transducer circuit.

磁场测量装置主要由霍尔探头、不等位电势补偿电路、信号放大电路、量程自动切换电路、A/D转换器组成。

Because the Hall probe circuit, magnetic-flux meter circuit and extension measurement circuit share the same A/D converter, but MAX110 only have two channel, so the system use CD4052. CD4052 is the analog switch controlled by microcomputer, which can switch the three input channels. The singles is passed to microcomputer after A/D converted.

所有与模拟电路有关的低频接口控制线都采用光电耦合器TPL521进行隔离，而频率较高采用6N137构成单片机相关外围器件的隔离，以便抑制数字电路的尖脉冲和其他噪声对模拟电路产生干扰，提高系统的信号噪声比。

The whole system is divided into four parts, they are electric circuit provided by Hall element electric current, Hall voltage measurement circuit with sampling, data processing and the display circuit.

整个系统分成霍尔元件工作电流提供电路、霍尔电压测量用采样电路、数据处理部分、显示电路四大部分组成。

To improve the effect of electric circuits teaching, three methods are presented in this paper, which are respectively hued on the Matlab Notebook, the GUI and the simulink simulation.

为了提高电路教学质量，文章针对当前电路教学中存在的一些不足，引入了三种分别基于Matlab Notebook，图形用户界面GUI (graph， cal user interfaces)，Simulink仿真的电路教学方法。

Hardware design includes equipment selection ,I/O address assigning ,exterior input circuit designing ,exterior output circuit designing , the joint circuit of sensor etc .

硬件设计主要包括装置选型、I／O地址的分配、外部输入电路设计、外部输出电路设计、通讯模块设计以及A／D模块和传感器的连接电路等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。