和电路

It analyses the systematic current frame, and the method of function transformation.

本文介绍一种基于函数变换思想的大屏幕显示电路，分析了系统实现的电路框图和函数变换的思想方法。

In addition, it doesn't need truth table and fault table, so it can be applied to large circuits.

此外，在生成电路的错误定位树时不需要生成真值表和错误表，从而节省了大量的存储空间，所以能应用于大型的电路。

The concrete circuit includes: Signal transformation unit, manual-automatic phase shifting triggering circuit, manual regulation unit.

具体电路有：信号转换单元、手动和自动移相触发电路、手动调节单元。

The device is suitable for industrial applications and is weather, explosion, chemical, dust and vandal proof.

喇叭功耗为3W，由于其电波干扰补偿电路和麦克特性补偿电路的设计，较适用于工业高噪音环境下。

This paper introduces mainly the circuit design of the Laser velocimeter system; include emission module, pulse drive circuit, receiver module, computer interface and controlling software.

本文主要研究工作是激光测速系统中的硬件电路设计，其中包括发射模块、脉冲驱动电路、接收模块、计算机接口和上位机控制软件五个部分。

In order to carry constant current bias amplifier and to raise the precision of the differential amplifier of the voltage amplification stage, an overly highly precise constant current circuit is adopted as the bias circuit used as criteria of operation, and the supply voltage variation supression ratio is raised much more.

为了执行恒流偏置放大器和提高精度的差分放大器的电压放大阶段，过于高精度恒流电路采用为偏置电路用来作为标准的运作，以及电源电压的变化抑制比筹集更多。

This eye sensor consists mainly of light activated triode and voltage comparator is composed of circuit, drive circuit "H" bridge.

此眼球感应器主要由光敏三极管和电压比较器组成的比较电路、"H桥"驱动电路组成。

The programme through the transformer transformer, through the rectifier circuit filter circuit which will be AC into DC, and the adoption of the regulation by regulators more stable voltage, input voltage regulator when it can only be fixed when the voltage difference within the scope of regulation of the output voltage, and therefore out of voltage difference in the scope of automatic Diaodang, it is through the two comparator output voltage and the reference voltage comparison, and through the counter counting function control relay controller The input to determine the size of the output voltage at which the scope, and then automatically Diaodang.

该方案是通过变压器变压，再经过整流电路、滤波电路进而将交流电变为直流电，在通过稳压器的稳压得到较稳定的电压，由于稳压器当输入电压固定时只能在它的电压差范围内调节输出电压，、所以要在调出电压差的范围时自动调档，这是通过两个比较器将输出电压和基准电压进行比较，再通过计数器的计数功能控制继电器控制器的输入情况来判断输出电压的大小在哪个范围，然后进行自动调档。

Design and optimization methods of low dropout voltage regulator are studied through the analysis of their topology and operational process.

研究了电容式电荷泵电路的基本类型和动作原理，建立了一个理论模型，给出了电荷泵电路的性能评估方法。

Because the traditional wireless microphone uses the frequency low silent chain, all is analyzes the radio-frequency signal the intensity, therefore they cannot and need the noise the signal differentiates; In the noisy radio frequency environment (for example digital equipment and so on CD/VCD/LD send out massive overtones) under use, when this launcher signal weak or closure, the silent chain possibly can open suddenly, the receiver can send out the intense demolition noise.

传统无线麦克风因采用频率低的静噪电路，都是分析射频信号的强度，所以它们不能把噪音和需要的信号区分开来；在嘈杂的射频环境(如CD/VCD/LD等数码设备散发出的大量谐波)下使用，在该发射器的信号微弱或关闭时，静噪电路可能会忽然打开，接收机就会发出强烈的爆破噪声。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。