电路的

An NMOS feedback device is added in the detection circuit, and the dynamic transmission structure is applied.

该电路在检测电路部分加了一个NMOS反馈器件，同时在检测电路的下一级使用了动态传输结构。

This is on digital circuits ppt courseware, for combinational logic circuits and sequential logic circuits have stood out clear and thorough.

详细说明：这是关于数字电路的ppt课件，对于组合逻辑电路和时序逻辑电路都讲得比较清晰透彻。

Analyze the example we proof: we can get the most simple Combinational Logic Circuits by the Communal technique to design Combinational Logic Circuits., and the combinational logic circuits's rate of function and price was improved.

通过实例的分析证明了使用公用技术组合逻辑电路设计方法实现的逻辑电路比使用最简逻辑函数实现的逻辑电路更简单，从而提高了逻辑电路的性价比。

In this paper the commutate circuit principle and work process of the commutate circuit, the composing and work principle of frequency conversion circuit, main switch element IGBT structure feature turn on and turn-off process dynamic and static switch feature and the work principle of invert were analyzed .

本论文分析了整流电路及相控电路的原理和工作过程；变频电路的组成和工作原理；主开关器件IGBT的结构特点、导通及关断过程、动态静态开关特性；逆变电路的工作原理。

And the main circuit chart used microsoft office visio to draw up, has realized the filter circuit, the leveling circuit, the contravariant electric circuit's composition design.

其中主电路图使用了microsoft office visio来绘制，实现了滤波电路、整流电路、逆变电路的组成设计。关键字：单片机 V/F控制 HEF4752

The design includes personally fabricating Dupi surrounding voice decipherer by using ordinary electronic devices, using DC control technology in the predrive amplified circuit and applying active servo-technology to the over-loaded low voice curcuit .

本文介绍了一种新型功率放大电路的设计，利用普通元器件自制杜比环绕声解码器，将直流控制技术应用到前置放大电路，将有源伺服技术应用到超重低音电路，各具特色，LM3886功率放大芯片，功率大，效果好。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

A superimposed circuit derived from two suitably arranged pairs of wires called side circuits, with each pair of wires being a circuit itself and at the same time acting as one conductor of the phantom circuit .

一种由称作半边电路的两对线路经适当安排形成的叠加电路。每一对线本身既作为电路，同时又充当幻象电路的一个导体。

In order to increase the occupating coefficient and reliability of digital experimental box,we improve its power supply by designing a simple,reliable overcurrent protecting circuit base on the analysis of its working principle .

设计了一个简单可靠的电源过流保护电路，分析了过流保护电路的工作原理，在此基础上改进了数字电路实验箱中稳压电源电路，提高了仪器的使用效率，增强了可靠性。

Thirdly, A new topology of Single Stage Asymmetrical Half-Bridge Converter with Synchronous Rectification is presented in this paper. The operation principle of the circuit is analyzed in detail. The operation principle of soft-switching and steady-state analysis is proposed.

提出了一种同步整流单级不对称半桥变换电路，对电路的工作原理作了详细的分析，特别是电路的软开关工作过程，并对电路做了稳态分析； 4。

Further more, the simplified analysis method on stressed-skin effect of corrugated steel sheet is also discussed in detail.

此外还比较详细地探讨了蒙皮效应的简化分析方法。

If I had known her telephone number,I would have called her.

要是我知道她的电话号码，我就打电话给她了。