电容电路

The converter combines the advantages of the PWM technique and soft-switching technique, the PWM is effected all over the whole loads range, and soft-switching is effeted only in the switching transition period, the ZVS of leading-leg is achieved by using the energy stored in leakage inductor of the transformer and the output inductor, the ZCS of lagging-leg is achieved by using a blocking DC capacitor, the ZVS and ZCS are achieved for the whole load ranges (5A~250A).

控制电路采用相移控制方式，综合了PWM控制和软开关技术的优点，在大范围内实现PWM控制，而在功率器件换流期间实现软开关换流，其中超前桥臂利用变压器的漏感，实现了零电压开关，滞后桥臂利用隔直电容，实现了零电流开关，并且整个变换电路能在（5A~250A）的范围内实现软开关工作条件，满足弧焊电源负载变化大的特点。

This dissertation presents a systematically study of the silicon capacitive microphone and the peripheral circuit, including design, fabrication and measurement.

本论文主要工作包括硅基电容式微传声器及其外围电路的研制以及器件与电路的性能测试分析。

The core circuit adopting differential negative resistance structure with resistor feedback achieves good phase noise performance.The 2 bit switch capacitor array provides extra tuning range.The output buffer of common source structure is of decent reverse isolation.

电路核心采用带电阻反馈的差分负阻结构，因此具有良好的相位噪声性能；2bit的开关电容阵列进一步提高了电路的调谐范围；共源级输出缓冲提供了较好的反向隔离度。

Then,the paper analyzes common-mode voltage and output voltage range of operational amplifier influenced by temperature and process problems that may appea.

基于混沌、均匀分布的真随机数发生器的工作电路和精度要求较高的电压参考电路的温度漂移进行分析，给出了仿真得到的温度曲线；分析了工艺中可能存在的问题和温度的影响与运放的共模电压和输出电压幅度，以及与混沌公式直接相关的开关电容等，根据最坏分析得到混沌公式，给出了仿真测试结果。

Aiming at the defects on structure design, electromagnetic design, analysis simulation, optimization design and control technology, double-action iron core mechanism, feedback-hold circuit of energy-saving capacitor voltage and intelligent control circuit were expounded, which can be a guidance for wide application...

针对目前永磁接触器在结构设计、电磁设计、分析仿真、优化设计与控制技术等方面存在的不足，重点阐述了双动铁心永磁机构、储能电容电压的反馈-保持电路及智能控制电路。为促进永磁接触器的推广应用指出了进一步的研究方向。

We present some new topologies of components and devices, embedded passive circuits and interconnections with good EM properties which can meet development of microwave and millimeter wave LTCC technology and domestic state of arts and crafts inland. These algorithms are applied to optimization of LTCC circuits by using relevant production and applicable techniques in SM study, i.e. optimizing and designing various LTCC capacitors and inductances by original space mapping, LTCC transitions by aggressive space mapping and equivalent lumped-element LTCC filters by knowledge-based aggressive space mapping and neural space mapping.

并且针对微波、毫米波LTCC技术发展需要和国内加工水平，探索具有良好电磁特性的新型组件拓扑结构及其内嵌无源电路、互连实现形式，利用在空间映射研究中取得的成果和开发的实用技术，实现LTCC电路的优化，主要是采用初始空间映射方法优化设计了LTCC电容电感、采用主动空间映射方法LTCC过渡、采用基于知识主动空间映射方法与神经网络空间映射方法优化设计了LTCC等效集总元件滤波器等。

In most systems involving TTL the fan-out will be limited by the sink current, but in CMOS systems the node capacitance is likely to be the limiting factor.

对于绝大多数的 TTL 电路，扇出能力是由吸收电流决定的。对于 CMOS 电路而言，扇出能力则是取决于节点的电容。

Negative feedback circuit is the main body of SAW drive circuit which is composed by operation amplifier and feedback network, its function is to realize output impedance matching and electric circuit stable gain.

负反馈放大器是该驱动电路的主要部分，它由运算放大器加上电阻和电容构成的反馈网络组成，其功能是实现输出阻抗匹配以及保证驱动电路增益的稳定性。

Since there is now twice as much inductance in the circuit, the tank supply was upped to 360Watts (12kV 30mA), and the tank capacitor was increased to 0.078uF so as to make tuning with the extra capacitance possible.

由于现在的两倍多电路中电感，坦克供应调升至360Watts（12kV的30mA的），以及坦克电容增加到0.078uF，使额外的电容与可能的调整。

Several methods, such as the capacitance network balance method, the induced voltage method, the series-wound resistance method and the series-wound capacitance method, were proposed, designed, simulated and tested.

主要对电容网络平衡电路法、感应电动势法、串联电阻法、串联电容法等方法进行了理论分析、设计、模拟和实测。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷