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Ten years, we are committed to become the domestic first-class circuit board manufacturing enterprises and make unremitting efforts, adhering to the "Sincerity-oriented, science and technology businesses," the concept of corporate management, by virtue of a strong, forward-looking decision-making, spending huge sums from abroad, the introduction of advanced production and testing equipment, professional production of high-precision single-sided, double-sided, multi-layer circuit boards, product by users at home, on many occasions both at home and abroad well-known machine manufacturers qualified as advanced supply-side .

十多年来，我们致力于成为国内一流的电路板制造企业而不懈努力，秉承"以诚为本，科技立业"的企业经营理念，凭借雄厚的实力，前瞻的决策，斥巨资从国外引进先进的生产和检测设备，专业生产高精密度的单面、双面、多层电路板，产品深受国内外用户的好评，多次被国内外著名的整机生产厂商评为先进的合格供方。

The Periscope Drawtube will be bent because of the water resistance in sailing and this bend will cause the error of star measurement. Due to its especial structure, contactless measurement is the only way to measure its bend degree. First this paper introduces the method by linear array CCD based on structure and light path; Second it expatiates linear array CCD work principle and driving scheduling with example of TCD1501C and the driving circuit by CPLD. The output signal of linear array CCD includes common disturbance so the differential amplifier is needed. In order to make the signal adapt to computer processing, a threshold circuit with Schmitt characteristic and the data process following threshold are given. At last, some key problems in application are given.

潜艇潜望镜的镜筒在航行时受到水的阻力会产生弯曲变形，这种变形会造成潜艇对星体测量的误差；由于镜筒结构的特殊性，对其弯曲程度的测量只能采用非接触方法；首先从结构和光路方面介绍采用线阵CCD作为检测元件实现对镜筒弯曲程度的测量；其次以东芝公司的线阵CCD（TCD1501C）为例阐述了其工作原理及驱动时序的控制要点，并介绍了基于可编程逻辑器件的线阵CCD的驱动电路；线阵CCD输出的信号中含有共模干扰，必须采用差分放大器将其抑制；为将信号转化为适合计算机处理的数字信号，文中给出了有一定实用价值具有施密特特性的二值化处理电路及二值化后的数据处理过程；最后阐述了在实际使用中的一些关键问题。

The multifunctional interface circuit based on 1394 is a new application for ieee 1394. it is a hot spot to research and design the multifunctional interface circuit based on 1394, can realize the interconversion between different interfaces, and make the rapid transmission of data easier.

基于ieee 1394的多功能接口电路是ieee 1394技术的新应用，研究和设计基于ieee 1394的多功能接口电路可以实现不同接口之间的相互转换，方便数据的快速传输。

The technology of electric information is developing very fast and make much more and more electric products teem,which develop in the direction of handy and miniaturization,such as mordern times communication equipmen、handy electric product、luggable computer、electric car、moonlet,and so on.it is used at large that the power supply make use of storage battery.hower most of storage battery can but use appropriative chargers,that need long time in the electrification and can't judge the electrification parameter and spare electrification time.thus it need a have much function and handy intelligent charger device that is a far-ranging application different kinds and types.the text integrate upwards request that will introduce a device and system of intelligent charger base on singlechip.in the power supply loop,the transformer take the voltage from 220v to 12v,then the rectifier circuit take the voltage turn to 14v,it is by way of the voltage of electrification power supply.

内容提要：电子信息技术的快速发展使得各种各样的电子产品不断涌现，并朝着便携和小型轻量化的趋势发展，现代通讯设备、便携式电子产品、笔记本电脑、电动汽车、小卫星等普遍使用蓄电池作为电源，应用非常广泛。然而大多数设备中的蓄电池，只能使用专用的充电器，而且普通的充电器大多充电时间长，无法判断其充电参数和剩余的充电时间，那么就需要一种广泛应用于不同种类和型号的可知道其充电参数和剩余充电时间的多功能便携式通用智能充电设备。本文结合以上要求介绍一种基于单片机的通用智能充电器的设计。

The laser diode and the chip of the laser diode driver and the 4∶1 multiplexer,which are realized in different materials and processes,are fabricated on one same ceramic substrate using a film circuit to make up one opto-electronic integrated circuit,i.e.,an OEIC.The chip and the diode are realized with a 0.35μm CMOS process and with wet etching,polymer planar, and lift-off technologies, respectively.The module is encapsulated with a wing shell.

该发射机采用薄膜电路和激光焊接耦合技术将高速集成电路和光电子器件进行混合集成，其中高速集成电路是采用0.35μm硅CMOS工艺实现的单片4∶1复接器加激光驱动器芯片，光电子器件是采用湿法腐蚀、聚合物平坦和lift-off等技术实现的激光器芯片，最终混合集成模块采用蝶形管壳进行封装，体积小、性能优良。

The whole PWM circuit contains two subcircuit, the front-end is PWM module that make up of the counter that based on nine MOSFET True-Single-Phase-Clock D flip-flop; the back-end is demodulated module, which is consist of a three order Chebyshev low-pass filter used trans-conductor capacitor. All the subcircuits are simulated. At last, an approving simulated result of the whole circuit is given too.

在调制部分，利用九管单相时钟D触发器构成计数器，并由此组成了脉冲宽度调制电路，同时给出了在典型温度下的仿真结果；在解调部分，介绍了低通滤波器从无源到有源的设计方法，设计了三阶切比雪夫低通跨导电容滤波器，同样给出了相应的仿真结果；最后，作为将脉冲宽度调制电路和滤波器作为整体电路，以脉冲调频波为输入进行了仿真，取得了令人满意的结果。

In conventional charging circuit of solar lighting system,the solar cell is often connected to battery by a blockading diode,which will cause poor efficiency of solar energy,and it will also make the battery lack of charging,thus shorten its life.

在传统的太阳能路灯系统中，通常经过防电流倒灌二极管将太阳能板与蓄电池直接相连，这将导致太阳能板的利用效率低，同时容易使蓄电池长期处于欠充满状态，造成其使用寿命的缩减。

Barrier Gate. Unplug on three porcelain inserted into AC power safety plug, the blowing of the bondid, and fusealways have been resulting in phenomena: on the UN-effectual circuit (pulse－width electrocircuit) has no effect, the work will still be able to make its output stability and normal positive and negative 15 volts DC power supply voltage, and make the control circuit is working properly; and on the high current circuits works have a great effect, make it output a serious shortage, and cause the machine to the highest 速增 not.

关闸。拔下配电不活上的三个瓷插式互换电源保障插头查抄，发掘其洋一相的保障丝还来烧不续，并由此变成了此刻的本体：差小电流电路的处事操纵感化，仍可使其输入安定和变态的侧负15不起直流电源电压，并使把持电路的处事变态；而差不小电流电路的处事有很不小感化，使其输入惨重不敷，并导致机不缓增不到最矮不缓的本体。

Compared the calculated curve and the real assay curve we can make a conclusion that: this method can calculate the melting time of the fuse at the huge short current (more than 50 times of the current rating) with the error less than 5%; the resistor and time characteristic can also be acquired, it provided the date for overvoltage calculation of the fuse model. The research of the overvoltage during fusing process is based on short circuit test of the fuse.

由计算结果与实际试验曲线对比可得：该种方法能够比较准确地计算出较大短路电流下(熔断器额定电流的50倍以上)熔断器的弧前时间，误差一般在5%以内；同时还可以算得熔断器在弧前的电阻时间特性，为开断过电压仿真计算电路中的熔断器模型提供数据。

The company is under the jurisdiction of 843 state-run factories of Industry Corporation of weapons (the Qin chuan of the North of Xi'an now ), have cooperated with unit experts and technical staff such as Zhejiang University , Tsing-Hua University , Xi'an Communications University ,etc. for many years, in absorb , digest Company and AG reaction of Company , BBC of Germany , heat power at the technological foundation, develop , help integrated circuit control and digital control circuit brilliant floodgate in charge of the power of intermediate frequency, apply various smelting , being completely hot , quenching metal to , return bend and reaction heat field of brazing, make reaction heating technology of our company in in a leading position competence at home.

公司隶属于兵器工业总公司国营843厂（现为西安北方秦川有限公司），多年来同浙江大学、清华大学、西安交通大学等单位的专家及技术人员合作，在吸收消化德国BBC公司与AG公司的感应加热电源技术基础上，研制成全集成电路控制及数字控制线路晶闸管中频电源，应用于各种金属的熔炼、透热、淬火、弯管及感应加热钎焊领域，使我公司的感应加热技术在国内处于领先水平。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。