和电路

The laser diode driver is composed of an input buffer, a predriver circuit and an output current switch stage.

该激光驱动芯片包括输入缓冲、驱动放大电路和输出级电路3个部分。

A cable railway on a steep incline, especially such a railway with simultaneously ascending and descending cars counterbalancing one another.Each of these logic families, TTL, ECL, PMOS, NMOS and CMOS, has a specific set of characteristics that make it desirable for certain applications.

每一种逻辑元件，晶体管一晶体管逻辑电路、发射极耦合逻辑电路f 型金属氧化物半导体、n 型金属氧化物半导体和补充金属氧化物半导体，都有其特有的性质，从而适用于不同的用途。

The " reference direction ", which plays an important role in the electric circuit, is a kind of method and means for analyzing and calculating the electric circuit.

"参考方向"在电路中起着十分重要的作用，是分析计算电路的一种方法和手段。

The method for determining the initial value of capacitance voltage and inductance current is studied.

动态电路的时域分析，正是研究和讨论电路中产生的这一过渡现象。

This system based on AT89c51, it contains I/O, interface between computer and human, system software. It has been used in ZuZhou Cham Manufacture.

本系统以AT89C51单片机为核心构成，根据系统要求，设计了完善的I／O接口电路、人机接口电路和系统软件。

The non autonomy statement equation basic circuit was established in this paper,and the conservation electric charge equation was worked out basing the periodicity of its stable solution.

对包络检波的基本电路建立非自治状态方程，并根据其稳定解的周期性，推导出电路的电荷量守恒方程，并通过假设的条件近似和简化方程。

The paper describes the work process of chargeable switching power supply, control and main circuit of inverse change.

设计了本系统中所采用的充电器、控制器、逆变主电路，对电路的结构和有关参数进行了设计、计算。

The reliability of the circuit has been examined through the imitation and check to the circuit board.

通过对电路的仿真和电路板的检测，证明了硬件电路的可靠性。

Have been a keyboard control circuit mainly and have demonstrated the circuital principle and function, and have shown LED principle go along introduce that.

主要是键盘控制电路与显示电路的原理和功能，并对LED显示原理进行了介绍。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

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。