电路

A novel circuit with a narrow pulse driving structure is proposed for enhancing the noise immunity and improving the performance of wide fan-in dynamic circuits.

提出了一种利用窄脉冲发生器驱动输出级，以提高电路抗噪声能力，同时保持动态电路的高速特性的多输入动态逻辑电路。

In short,the paper illustrates the feasibility of block diagram simulation analysis in negative feedback amplifier circuit.

本文利用EWB软件，采用方框图分析法，对由运放构建的电压负反馈放大电路进行了仿真分析，同时将仿真结果与理论计算加以比较，结果显示两者一致，验证了负反馈放大电路中的基本关系式。1仿真分析1.1电路组成负反馈放大

In the same time,main circuit figuration and working principle will be given,and worked out the parameter of this circuit S transformer and RCD clamped circuit.

给出了电路的主电路图，在此基础上阐述了此电路的工作原理，并分析计算出了变压器和RCD缓冲电路设计的参数。

First, to optimize imprecise polynomial circuits using arithmetic transformation, implement the design under different error precision bound and considering the case of fixed point and floating point representation., to search the optimized circuits with branch and bound algorithm.

方法首先利用算术变换进行非精确多项式电路优化，给出电路在不同精度界限下的实现，考虑电路的定点和浮点设计表示，然后应用分枝定界方法求解出最终的优化结构。

Two high-voltage circuits have been designed: voltage doubling rectifying circuit and fly-back switching high-voltage power supply circuit.

设计了两种高压产生电路：倍压整流电路和反激式开关电源电路。

In the voltage doubling rectifying circuit, the high voltage has been realized by the positive and negative way, and the voltage between the cathode and anode could reach 1700 V. In the fly-back switching high-voltage power supply, considering the requirements of each unit of the driving circuits on the power supply, the three-group voltage outputs including low-voltage outputs have been realized: 1600V/20mA,12V/500mA, 5V/50mA, in which UC3842 has been used to achieve pulse width modulation.

在倍压整流电路设计中，采用正、负电压方式实现高压，有效降低了阴阳极间所需的高压，最终两极间可产生1700V电压；在反激式开关电源电路设计中，利用UC3842芯片实现PWM调制，考虑到驱动电路各单元对电源的需求，设计了包括低压电源在内的三组电源输出：1600V/20mA，12V/500mA，5V/50mA。

This paper analyses fundamental of general thyristor single phase bridge half controlled rectifier and draws work wave of each part. to avoid out of control, the freewheel diode is added, the work wave is analyzed.

本文从常规的晶闸管单相桥式半控整流电路着手，分析其电路工作原理和各部分工作波形，为避免失控，在电路中添加续流二极管，并分析了相应的各部分波形。

I introduced in the paper one kind of VVVF elevator control system, I has used the closed loop velocity modulation regarding the elevator velocity modulation system, and has carried on the detailed design separately to the hardware electric circuit main part,including PLC control section,frequency changer,main circuit and gate and so on.

在论文中我介绍了一种VVVF的电梯控制系统，对于电梯的调速系统我采用了闭环调速，并对硬件电路的主要部分分别进行了详细设计，包括PLC控制部分，变频器，主电路和门电路等。

The peak time detecting circuit which is composed of full-wave rectification circuit and differential circuit can detect the reach time of echo signal accurately.

采用时间增益补偿技术，补偿超声波在空气中的衰减，减少回波信号的起伏；由有源全波整流电路和微分电路等组成峰值时间检测电路，可正确检测回波的峰值到达时间。

Compared to the other second-side rectifier, it is concluded that the full-wave Rectifier is well adapted to the Low-voltage High-current DC-DC converter.

论文通过对全波整流输出电路与其他副边整流电路的比较，得出采用全波整流电路特别适合隔离型低压、大电流输出的DC／DC变换器的结论。

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。