和电路

The design scheme considers the circuit structure in transistor level by using the principle of adiabatic computing, which can effectively avoid the inevitable problems of metastability and asynchronism signals treatments in FIFO based on conventional complementary metal oxide semiconductor logic. A 16-depth adiabatic FIFO based on CTGAL was achieved.

该方案运用绝热计算原理，基于晶体管级设计电路，有效避免了传统CMOS逻辑的FIFO必然遇到的亚稳态和异步信号处理等难题，实现了深度为16的基于CTGAL电路的绝热FIFO结构。

Mixer is the most important block in microwave receiver front-end. The performance of the mixer affects the adjacent blocks and the overall receiver performance.

在微波接收机前端电路中，混频器是非常重要的模块，它影响相邻电路和接收机的整体性能。

We also designed the timing circuit board to driver the MOSET and the network control system based on the probably fill mode in the future and the RF system of the storage ring in HLS. The high reverse overshoot exists in the current pulse with the pulse width of 60 ns. Further study is necessary to eliminate the reverse overshoot and to search the proper techniques on modulability of light pulse interval in HLS.

根据未来光源储存环可能的填充模式，以及光源储存环高频系统的特性，设计了MOSET开关驱动控制系统的时钟试验电路，和以太网控制试验电路，即将投入加工。60ns脉宽的脉冲电流，存在较大的反向过冲，需要进一步研究合适的反峰削除技术，以及可用于光源脉冲可调性的合适技术。

The control circuit made up of double monostable circuit IC has realized some remarkable functions, such as cycle control , zero crossing trigger, and preventing from repeated and error trigger.

所设计的控制电路，利用双单稳电路 IC，实现了点焊过程周波控制、过零触发，以及防重触发和误触发功能，保证了焊接过程稳定、可靠。

Using retriggerable monostable multivibrators to provide the trigger signal and double MOS driver to drive the LD, with a lot of experiments, emulations and comparisons, the variable frequency, pulse width and power driver circuit is designed. And the pulse frequency and width can be changed easily for its situations.

然后用电子多频振荡器提供驱动信号，用双MOS驱动器来驱动半导体激光器，通过大量的实验、仿真、分析、比较，设计出了方便可调的大功率LD的驱动电路，该电路的脉冲频率和脉冲宽度可方便调整。

Beijing 100084, China Abstract: The nephogram signal of FY-2B meteorological satellite is a burst QPSK modulated carrier, and the effect of the special preamble on the carrier recovery loop is analyzed in this paper.

摘 要："风云二号B星"气象卫星的原始云图数据是时分复用的突发载波调制信号，本文就其特殊的预告码对于载波恢复电路捕捉性能的影响进行了分析，并对具有不同类型和带宽的低通滤波器的载波恢复电路性能进行了仿真。

The nephogram signal of FY-2B meteorological satellite is a burst QPSK modulated carrier, and the effect of the special preamble on the carrier recovery loop is analyzed in this paper.

摘 要："风云二号B星"气象卫星的原始云图数据是时分复用的突发载波调制信号，本文就其特殊的预告码对于载波恢复电路捕捉性能的影响进行了分析，并对具有不同类型和带宽的低通滤波器的载波恢复电路性能进行了仿真。

Explore the algorithms of both the circuit gate-level parallel logic simulation based on event-driven and the corresponding circuit partition.

对基于事件驱动的电路门级并行逻辑模拟算法和相应的电路划分算法进行了研究。

Firstly, this paper analyzes and summarizes the research situation of resonant soft-switching technique and main topologies. And it indicates the main advantages and disadvantages. Then it pays more attention to analyze the parallel resonant DC link circuit theory and operating modes. It also analyzes how the resonant circuit realizes the resonant process. This paper also simplifies the control part design of the parallel resonant DC link soft-switching inverter by DSP.

本文首先对谐振软开关技术的研究现状和各种主要的拓扑结构进行了分析、综合、总结，指出了各自的优缺点；着重对并联谐振直流环电路的工作原理、电路工作模式、软开关实现机理及谐振参数的确定等进行了深入详尽的分析；利用DSP的灵活调节特点，有效地简化了并联谐振直流环软开关逆变系统的控制环节设计。

A invariable -angle control circuit of parallel resonance converter which can get high precise control of inverter operating state is designed. Using the technique of phase-lock loop, the circuit implements automatic tracking to inverter operating frequency and constant control of capacitive power factor angle.

论文设计了能在频率自动跟踪的基础上实现高精度的逆变器运行状态控制的并联型逆变器定角控制电路，该电路采用锁相环技术，实现了逆变器工作频率的自动跟踪和容性功率因数角恒定控制。

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。