及电路

The new performances and it's operating principle are introduced,and it's reader circuit device at FSK mode is analysed. At last the D class power amplify and the demodulating application circuit for FSK are given in this paper.

文章着重介绍了T5557的新特点及工作原理，并对其FSK工作模式下读写器的电路设计作了分析，最后给出了D类功放和FSK 解调的应用电路。

At first, I collect and analyze the relative dates, and statistics fault models. Then I finish the analysis from three aspects, instruction of circuit, stress of surrounding, and tolerance, thus providing basis of design. The following designs are in progress from four aspects, which are circuit design, thermal design, derating using and screening. At last, I make the update generator in batch process, and collect and analyze reliability dates again. I proved that the life of the improved HF electrodless light is over to 60,000 hours.

首先进行了与可靠性相关的数据收集与分析，对故障模式进行统计；然后从电路结构、环境应力及容差三个方面进行可靠性分析，从而为关键的可靠性设计提供了依据；接下来的可靠性设计，从电路设计、热设计、降额使用、筛选四个方面逐一解决了可靠性分析阶段发现的问题；最后，我将改良的发生器批量生产，并从中重新收集了可靠性数据进行计算，事实证明改良后高频无极灯的平均寿命已达到6万小时。

Electric circuit diagram, the PSpice proceeds to weave to the electric circuit distance and emulations imitate true, its and proceed the verification to the function of the electric circuit.

摘要实验利用Orcad中的Capture进行电路图的设计，PSpice对电路进行编程及模拟仿真，并对电路的功能进行验证。

According to switching power supply's theory, the circuit analysis, and transformer's foundation, it has analyzed switching power supply's principle of work from the electric circuit work's perspective, and factures a kind of switching power supply circuit diagram, which is quite simple, and is reliable for the operation, and is suitable for using commonly in the present life .

再根据开关电源的理论、电路分析、及变压器的基础，从电路工作的角度分析了开关电源的工作原理，制作了一种比较简单，工作可靠，且适用于目前生活中常用的开关电源。

It also provides a unique practical measured curves,It'll give a new measurement technology, which has replaced old a experiment instruments for the reform of educational experimention circuit of low frequences.

计算机辅助电路实验系统》将为&电路分析基础&教学实验的改革，及相关学科的实验测试，提供一种全新的测试技术与实验手段。

The specific discussion of the core oscillation circuit design process, Integration of the 555 timer gave a detailed analysis.

常见的耐压测试仪往往价格昂贵不易携带，因此我们设计了简单便携式耐压测试仪来测试半导体器件的耐压值，介绍了耐压测试仪的电路组成及原理，具体讨论了其核心部分振荡电路的设计过程，对集成定时器555做了详细的分析。

With the combination of analysis and software simulation, the operation principles of different parts of the network are analyzed. Especially, the model of the oscillator, based on negative resistance cross-coupled pair, is given. Meanwhile, the effect of different crossed-coupled pair to the oscillation circuit is also analyzed.

利用理论分析与软件仿真相结合，详细分析了基于CMOS工艺的二分之一波长驻波振荡电路各组成部分的工作原理，尤其是振荡器的重要组成部分，提供负阻的交叉耦合对，给出了相应的数学模型及分析仿真，研究了不同的MOS管对对振荡电路的影响。

Good temperature characteristics for time constant circuits, oscillation

良好的温度特性，可用于定时电路、振荡电路及滤波器等

This utility model is combined with controller series, attain the required voltage, and then put the resulting series DC voltage by oscillators converts AC voltage.each solar battery pack over-discharge buildingup, dangelmayer, adopted by the series of microprocessor and complementary components of the circuit to control this control circuit management, together with the ciyutuo program software to make up the " serries solar battery charging and discharging controller ", do not need inverter adrenotensin, you can be used directly for energy saving lamps or other to adapt to the mains voltage electrical and electronic appliances, and thereby save General inverter converts adrenotensin faches as a result of waste, and therefore reduce the time of conversion of electrorheological, Terminal′s makes solar power and use have become a stable and reliable.

本串联型太阳能电池充放电控制器就是结合控制器之间的串联，达到所需电压，再把串联所得到的直流电压，通过震荡器转换为交流电压。每个太阳能电池组对蓄电池的充、放电，采用串联的由微处理器及配套元件组成的电路进行控制管理，此控制电路并配合配套的程序软件组成了&串联型太阳能电池充放电控制器&，不需要逆变器升压，就可以直接使用节能灯或者其它适应市电电压的电子电器设备，从而省掉常规逆变器转换升压环节所造成的浪费，并因此减小转换时低压端的电流，使太阳能发电和使用都变得稳定可靠。

A total of 14 book chapters and two appendices, a comprehensive introduction to the work of Protel 99 interface, the basic composition, a variety of commonly used editors and basic knowledge of common tools, and circuit design in accordance with the general process, starting from the user requirements, to the printout printed circuit board plate making plans until a detailed description of the circuit schematic design, netlist generation, single-sided and double-sided printed circuit board design method and the steps and so on.

本书共有14章和2个附录，全面介绍了Protel 99的工作界面、基本组成、各种常用编辑器和常用工具等基础知识，并按照电路设计的一般流程，从用户要求开始，到打印输出印制电路板制版图为止，详细地介绍了电路原理图的设计、网络表的生成、单面和双面印制电路板的设计方法及操作步骤等内容。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐