查询词典 electric circuit

So it is important to research and practice the electronic technology in electric power field.The author is mainly to discuss the master and trigger circuit of three-phase bridge controlled rectifier circuit, and controlled circuit diagram.

近几年越来越多电力电子应用在国民工业中，一些技术先进的国家，经过电力电子技术处理的电能已得到总电能的一半以上。

By analyzing the pulse transformer and ideal drive electric current wave, we try to improve the rate of changing-over, discuss the damped oscillation, point out existing circuit design error, and working a new circuit design which can reduce the common circuit circulation and switch loss.

通过对脉冲变压器及理想激励电流波形的分析，如何提高转换速率，阻尼振荡予以讨论，指出目前存在的设计误区，做出减少共态导通与开关损耗的新设计。

With the electrical connections at the top and bottom side of the wafer-level IC packaging Lead-frame structure and composition of the surface-mount semiconductor package structure Multi-layer printed circuit board Antifuse and its formation method and with the anti-fuse non-volatile memory device unit cell Tandem electric signal processing circuit and electronic device Light-emitting diode packaging structure and encapsulation method Electronic Packaging Structure Flip-chip high-speed optoelectronic components and structure Pairs of piezoelectric friction side by side to promote the three-step device and scanning probe microscope Light-emitting diode and its manufacturing method, the production base of light-emitting diode method Three or four parallel advance of stepping piezoelectric device and scanning probe microscope lens body Silicon substrate and its manufacturing method Semiconductor device and voltage-divider A polysilicon layer and the microcrystalline silicon layer of the double-substrate active layer structure, methods and devices The edge of the thickness of silicon controlled Of a lateral semiconductor devices and high-voltage devices With a vertical-channel transistors semiconductor device Of a memory array and for the manufacture of a memory array method Read-only memory cell array structure Active-matrix substrate and display device High-voltage semiconductor integrated circuit devices, dielectric isolated type semiconductor device Image sensing devices Lens module and its manufacturing methods Solid-state imaging device and camera Injection angle for the trench isolation Organic Light-Emitting Display Device Organic light-emitting display device Bipolar transistor structure of the surface passivation Double-triggered silicon-controlled rectifier HFET Metal-oxide semiconductor transistors Self-aligned trench accumulation mode field effect transistor structure Thin-film transistors and Display Devices TFT Lead Diode Low-frequency, low noise, low-flashing diode Used for thin-film solar cells trap light structure Transparent sun solar cells Quaternary semiconductor heterojunction photovoltaic cells heat Si nano-pillar array heterojunction thin-film solar cells GaN-based micro-composite solar cells isotope Optical sensor Semiconductor by optical components Imaging Detector Transparent conductive oxide coating Silicon-based high-performance dual-junction solar cells Thin-film solar cells Alien LED Devices

非专业，不在行，求高手帮忙。谢谢！具有顶部及底部侧电连接的晶片级集成电路封装导线架结构及其构成的表面黏着型半导体封装结构多层印刷电路板反熔丝及其形成方法和具有该反熔丝的非易失性存储器件的单位单元串联用电式信号处理电路及电子装置发光二极管的封装结构及其封装方法电子封装结构高速光电组件及其芯片倒装结构双压电体并排推动的三摩擦力步进器与扫描探针显微镜发光二极管及其制作方法、发光二极管的底座的制作方法三或四压电体并行推进的步进器及其扫描探针显微镜镜体硅衬底及其制造方法半导体装置与分压电路具多晶硅层及微晶硅层的双底材主动层结构、方法及装置硅晶片的受控边缘厚度一种半导体横向器件和高压器件具有垂直沟道晶体管的半导体器件一种记忆体阵列及其用于制造一记忆体阵列的方法只读内存单元阵列结构有源矩阵基板和显示装置高耐压半导体集成电路装置、电介质分离型半导体装置图像感测装置透镜模块及其制造方法固态成像装置和照相机用于沟道隔离的斜角注入有机电致发光显示装置有机发光显示装置双极晶体管的表面钝化结构双触发型可控硅整流器异质结场效应晶体管金属氧化物半导体晶体管自对准沟槽累加模式场效应晶体管结构薄膜晶体管及显示器件薄膜晶体管无铅二极管低频、低噪音、低闪烁的二极管用于薄膜太阳电池的陷光结构透明遮阳太阳能电池片四元半导体的异质结热光伏电池硅基纳米柱阵列异质结薄膜太阳能电池氮化镓太阳能同位素复合型微电池光学传感器半导体受光元件成像探测器透明导电氧化物涂层硅基高效双结太阳能电池薄膜太阳能电池异形LED器件

E. the jointless track circuit and the electric traction track circuit with asymmetrical line parameters, the simulation modeling of track circuit interference from local line is also analyzed.

基于电化区段线路不对称轨道电路和无绝缘轨道电路同线干扰的特性分析，提出同线干扰分析数字仿真模型的建立方法。

In the present paper,the goal applies in the development in the mixed style battery cocurrent of motor driver design in the electrically operated bicycle,the use lead-acid battery and the LiFePO4 battery takes the main actuation power to originate,the iron phosphate lithium battery has the life to be long,the electric discharge power is big and the transformation power suits the high electric current product good the characteristic;The lead-acid battery is in a market condition the quite mature battery product has the high security in the thermostable characteristic,and designs a driving circuit to actuate the cocurrent to have brushes the motor to lead the bicycle advance,comes in the enfilade non-ascent road section use LiFePO4 battery as the actuation electric power to originate,in had the ascent road section use lead-acid battery to come as the actuation electric power to originate, has promoted bicycle's endurance and reduces accumulator cell's energy loss.

本论文中，目的在研制应用於混合式电池於电动自行车之直流马达驱动器设计，使用铅酸电池与磷酸铁锂电池来作为主要驱动动力来源，磷酸铁锂电池具有寿命长、放电功率大及转换功率佳适合高电流产品的特点；铅酸电池为一市面上相当成熟的电池产品具有高度的安全性於耐高温的特性，并设计一驱动电路来驱动直流有刷马达来带动自行车前进，於直路无斜度路段使用磷酸铁锂电池来作为驱动电力来源，於有斜度路段使用铅酸电池来作为驱动电力来源，提升了自行车的续航力和降低蓄电池的能量损耗。

We also introduced and analyzed the voltage feedback circuit,capacitance—resistance absorb circuit and electric motor energy consumption braking circuit in detail.

对设计中必需的电压反馈电路、阻容吸收回路及电动机能耗制动回路进行了详尽介绍和分析。

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。

Electromagnetics course mainly including basic phenomena and laws of electro- magnetics, electrostatic field in vacuum, in conductor and in electric medium, electric energy, stabilized current, stabilized magnetic field and its basic laws, electric and magnetic fields caused by a moving chager in lower speed, the transform of electric and magnetic fields between different systems of coordinates, inductive laws, eddy field, self inductance, mutual inductance and transient, molecule current and magnetic substance, ferromagnet, boundary conditions, magnetic circuit theorem, energy of magnetic field and density of magnetic energy, displacement current, Maxwell's equation, electromagnetic wave, Poynting vector.

电磁学课程的主要内容包括：静电的基本现象和基本定律，真空中的静电场，导体和电介质中的静电场，电场的能量与电场能量密度，稳恒电流，稳恒电流磁场的基本定律，运动电荷的电磁场，不同参照系之间电磁场的变换，电磁感应定律，涡旋电场，互感，自感，暂态过程，分子电流与磁介质，铁磁体，边界条件，磁路定理，磁场的能量和磁能密度，位移电流， Maxwell 方程组，电磁波和玻印廷矢量等。

On the base of practical transformer substation main connection, electric components and system circuit model are first formed in the paper; analyze vacuum arc characteristic and medium resume are analyzed, then, according to vacuum chamber physical process of switching AC arc, resume process are divided into three stages: sheath development, neutral particles diffusion and static characteristic, with that, calculating model of medium resume strength is erected and applied in the computing of vacuum circuit breaker interrupting transform overvoltage; In the paper, Saber software is used to simulate a whole switching process; As follows, overvoltage characteristic of vacuum circuit breaker switching no load and load transformers, kinds of influence factors are analyzed in detail; At last, vacuum circuit breaker switching capacitance group overvoltage formative causes and electrode refining for lessening reignition are discuss.

本文针对中低压变电站的实际主接线建立各电气元件及系统的电路模型；在真空电弧的特点及间隙的介质恢复特性上，依据真空断路器灭弧室分断电弧的物理过程，将真空电弧熄灭后的恢复过程分为鞘层发展、中性粒子扩散和静态特性三个阶段，建立了相应的介质恢复强度的计算模型，应用到切除变压器操作过电压的计算中；采用Saber仿真软件模拟计算真空断路器切除变压器操作过电压；并分别对真空断路器切除空载及负载变压器操作过电压的特点与影响操作过电压的各种因素做了详细的分析；最后简要分析了真空断路器开断电容器组过电压的形成原因及为减少重燃的电极老炼措施。

According to four electric motors designing that primary data ascertains the host circuit be chief axis electric motor , rocker arm electric motor , hydraulic pump electric motor and cooling pump electric motor every one platform; Rotating , rolling back and protecting a function for the starting, stop realizing a drill machine

根据设计原始材料确定主回路电动机四台，即主轴电动机、摇臂电动机、液压泵电动机和冷却泵电动机各一台；为了实现钻床的启动、停止、正转、反转及保护功能，设计了相应的控制回路；同时为了对应电动机的各个动作，对其作出指示，设计了指示电路；然后换照电气选型原则，对元器件进行了选择。

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。