电子工程英语句子（十二)
<p>分享一些电子工程相关英语句子。</p><p>1.<span word="Consider">Consider</span> <span word="what">what</span> <span word="we">we</span> <span word="know">know</span> <span word="intuitively">intuitively</span> <span word="about">about</span> <span word="an">an</span> <span word="integrator">integrator</span>. <span word="If">If</span> <span word="you">you</span> <span word="apply">apply</span> <span word="a">a</span> <span word="DC">DC</span> <span word="signal">signal</span> <span word="at">at</span> <span word="the">the</span> <span word="input">input</span> (<span word="i">i</span>.<span word="e">e</span>. , <span word="zero">zero</span> <span word="frequency">frequency</span>), <span word="the">the</span> <span word="output">output</span> <span word="will">will</span> <span word="describe">describe</span> <span word="a">a</span> <span word="linear">linear</span> <span word="ramp">ramp</span> <span word="that">that</span> <span word="grows">grows</span> <span word="in">in</span> <span word="amplitude">amplitude</span> <span word="until">until</span> <span word="limited">limited</span> <span word="by">by</span> <span word="the">the</span> <span word="power">power</span> <span word="supplies">supplies</span>. <span word="Ignoring">Ignoring</span> <span word="that">that</span> <span word="limitation">limitation</span>, <span word="the">the</span> <span word="response">response</span> <span word="of">of</span> <span word="an">an</span> <span word="integrator">integrator</span> <span word="at">at</span> <span word="zero">zero</span> <span word="frequency">frequency</span> <span word="is">is</span> <span word="infinite">infinite</span>, <span word="which">which</span> <span word="means">means</span> <span word="that">that</span> <span word="it">it</span> <span word="has">has</span> <span word="a">a</span> <span word="pole">pole</span> <span word="at">at</span> <span word="zero">zero</span> <span word="frequency">frequency</span>. (<span word="A">A</span> <span word="pole">pole</span> <span word="exists">exists</span> <span word="at">at</span> <span word="any">any</span> <span word="frequency">frequency</span> <span word="for">for</span> <span word="which">which</span> <span word="the">the</span> <span word="transfer">transfer</span> <span word="function">function</span>’<span word="s">s</span> <span word="value">value</span> <span word="becomes">becomes</span> <span word="infinite">infinite</span>.)</p><p>1.我们怎么从直观上理解积分器呢?假设在输入端加上一个直流信号(频率为0)，那么在输出端将会出现一个线性斜坡信号,其幅度一直增至电源电压。如果不考虑电源电压对输出信号的限制，积分器在零频率上的响应将是无穷大，这意味着它在零频率点上存在一个极点(在任何使传递函数为无穷大值的频率点上都存在一个极点)。</p><p>2.<span word="While">While</span> <span word="the">the</span> <span word="complex">complex</span> <span word="frequency">frequency</span>’<span word="s">s</span> <span word="imaginary">imaginary</span> <span word="part">part</span> <span word="helps">helps</span> <span word="describe">describe</span> <span word="a">a</span> <span word="response">response</span> <span word="to">to</span> <span word="AC">AC</span> <span word="signals">signals</span>, <span word="the">the</span> <span word="real">real</span> <span word="part">part</span> <span word="helps">helps</span> <span word="describe">describe</span> <span word="a">a</span> <span word="circuit">circuit</span>’<span word="s">s</span> <span word="transient">transient</span> <span word="response">response</span>.</p><p>2.复频率的虚部有助于描述电路对交流信号的响应，而其实部有助于描述电路的瞬态响应。</p><p>3.<span word="The">The</span> <span word="low">low</span>-<span word="pass">pass</span> <span word="filter">filter</span>’<span word="s">s</span> <span word="transient">transient</span> <span word="response">response</span> <span word="is">is</span> <span word="more">more</span> <span word="stable">stable</span>, <span word="because">because</span> <span word="its">its</span> <span word="pole">pole</span> <span word="is">is</span> <span word="in">in</span> <span word="the">the</span> <span word="negative">negative</span>-<span word="real">real</span> <span word="half">half</span> <span word="of">of</span> <span word="the">the</span> <span word="complex">complex</span> <span word="plane">plane</span>.</p><p>3.低通滤波器的瞬态响应更加稳定，因为其极点位于复平面的左半部。</p>
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