磕求一段电气英语翻译，有加分

all the simple circuit elements that will be considered in the work that follows can be classified according to the relationship of the current through the element to the voltage across the element.For instance,if the voltage across the element is directly proportional to the current through it ,or u=ki,we shall call the element aresistor.other types of simple circuit elements have a terminal voltage which is proportional to the time derivative or the integral with respect to time of the current .

所有电路简单的元素将被视为在工作如下可分为根据的关系，目前通过元素的电压全国element.for例如，如果电压的元素是成正比的电流它，或U =安，我们会呼吁元素其它类型的简单的电路元件有一个端电压是成正比的时间导数或积分方面的时间，目前

There are also elements in which the voltage is completely independent of the current or the current is completely independent of the voltagethese are the independent sources.Furthermore,we shall need to define special kinds of sources in which the source voltage or current depends upon a current or voltage elsewhere inthe circuitsuch sources will be termde dependent sources or controlled sources.

也有一些元素在其中的电压是完全独立于目前或目前是完全独立的电压这些都是独立的sources.furthermore(这个真的不知道是啥) ，我们将需要界定特别种的来源，其中源的电压或电流取决于一电流或电压在其他地方电路这种来源将依赖来源或控制的来源。

Analog electronics pertains to those systems in which the electrical voltage and electrical current are analogous to physical quantities and vary continuously.Eleectronic circuits that reproduce music must have voltages and currents that are proportional to the sound .

模拟电子技术涉及到这些系统中，电器的电压和电流是类似于物理量和不同电路，重现音乐必须有电压和电流是成正比的声音。

A highfidelity amplifying system attempts to keep the analogy as true as possible.Analog electronic circuits are carefully designed to make the electrical voltages and currents follow the input signal .If an input signal doubles inamplitude ,the output voltage or current also should doublethis is possible because the ciucuit elements are made to operate within limits that preserve the linearity.

放大系统的企图保持这个比喻，作为真正的作为电子电路是经过精心设计，使电气电压和电流跟随输入信号，如果输入信号双打，输出电压或电流，也应加倍这是可能因为分子所作的经营范围内保存的线性关系。

Diodes in power electronic applications carry high currents,withstand high reverse voltages and should possess fast switching characteristics.These requirements render power diodes very different than the ordinary signal diodes.

二极管在电力电子应用进行高电流，承受高反向电压和应具备的快速切换，使功率二极管非常不同，比普通信号二极管。

It is also difficult to achieve all the above three characteristics in a single device .Hence,several types of power diodes are available suited for particular applications.

这亦是难以实现上述所有三个特点，在一个单一的装置。因此，几种类型的功率二极管，可适合，特别是应用。

The power diode is a high-current ,high-voltage diode with medium fast switching characteristics.The schottky Barrier diode uses a metal-semiconductor junction and has a lower on-state voltage than the p-i-n diodes.It has the high-current capability and fast switching characteristics but is is a low-voltage device and exhibits a much higher leakage current.

该功率二极管是一种高电流，高电压二极管中快速切换肖特基二极管采用了金属-半导体的交界处，并具有较低的对国家的电压比针有高电流的能力和快速开关特性，但是是一种低电压设备和展品高得多的漏电流。

These diodes are ideally suited for switch-mode power supplies.The on-state power losses,which are calculated bymutiplying the on-state voltage drop by the on-state current,determine the package size of all diodes.

这些二极管非常适合开关模式电源对国家电力损失，这是计算了对国家的压降由对国家当前，确定封装尺寸的所有二极管。

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