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意大利阿托斯比例放大器E-ME-AD-05F的描述：

增(zeng)(zeng)加信(xin)(xin)號(hao)幅度或(huo)功(gong)率的(de)(de)(de)(de)裝置，它是(shi)自(zi)動(dong)(dong)(dong)化技術工具中處理(li)信(xin)(xin)號(hao)的(de)(de)(de)(de)重要(yao)元(yuan)件。放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)作用(yong)(yong)是(shi)用(yong)(yong)輸(shu)(shu)入型號(hao)控制能(neng)源(yuan)來實現(xian)(xian)的(de)(de)(de)(de)，放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)所(suo)需(xu)功(gong)耗(hao)由能(neng)源(yuan)提(ti)供(gong)。對于(yu)(yu)線(xian)性(xing)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)，輸(shu)(shu)出就是(shi)輸(shu)(shu)入信(xin)(xin)號(hao)的(de)(de)(de)(de)復現(xian)(xian)和(he)(he)增(zeng)(zeng)強。對于(yu)(yu)非線(xian)性(xing)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)，輸(shu)(shu)出則與輸(shu)(shu)入信(xin)(xin)號(hao)成一定(ding)函數(shu)(shu)關(guan)系(xi)。放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)按(an)所(suo)處理(li)信(xin)(xin)號(hao)物(wu)理(li)量(liang)分為機(ji)械放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)、機(ji)電放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)、電子放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)、液(ye)(ye)動(dong)(dong)(dong)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)氣動(dong)(dong)(dong)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)等，其中用(yong)(yong)得(de)廣(guang)泛的(de)(de)(de)(de)是(shi)電子放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)。隨著射流(liu)技術（見射流(liu)元(yuan)件）的(de)(de)(de)(de)推(tui)廣(guang)，液(ye)(ye)動(dong)(dong)(dong)或(huo)氣動(dong)(dong)(dong)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)應用(yong)(yong)也逐漸增(zeng)(zeng)多。電子放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)又按(an)所(suo)用(yong)(yong)有源(yuan)器(qi)(qi)(qi)(qi)(qi)(qi)件分為真空(kong)管(guan)(guan)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)、晶(jing)體管(guan)(guan)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)、固體放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)磁放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)，其中又以晶(jing)體管(guan)(guan)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)應用(yong)(yong)廣(guang)。在(zai)自(zi)動(dong)(dong)(dong)化儀表中晶(jing)體管(guan)(guan)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)常(chang)用(yong)(yong)于(yu)(yu)信(xin)(xin)號(hao)的(de)(de)(de)(de)電壓放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)和(he)(he)電流(liu)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)，主(zhu)要(yao)形(xing)式(shi)有丹瑞放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)和(he)(he)推(tui)挽放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)。此外，還(huan)常(chang)用(yong)(yong)于(yu)(yu)、隔離(li)、電流(liu)-電壓轉(zhuan)換、電荷-電壓轉(zhuan)換（如放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)）以及利用(yong)(yong)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)(qi)實現(xian)(xian)輸(shu)(shu)出與輸(shu)(shu)入之間的(de)(de)(de)(de)一定(ding)函數(shu)(shu)關(guan)系(xi)。

意大利阿托斯比例放大器E-ME-AD-05F的作用：

高頻功(gong)率(lv)(lv)放大器用于發射器的(de)末級，作用是將高頻已(yi)調波信(xin)(xin)號進行(xing)功(gong)率(lv)(lv)放大，以滿足發送功(gong)率(lv)(lv)的(de)要求，然后經過天線將其輻射到(dao)空間，保證在一定區域內(nei)的(de)接(jie)收機可以接(jie)收到(dao)滿意的(de)信(xin)(xin)號電平，并(bing)且不干擾(rao)相(xiang)鄰信(xin)(xin)道的(de)通信(xin)(xin)。

高(gao)(gao)(gao)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)是(shi)通(tong)(tong)信系(xi)統中發送裝置(zhi)的(de)(de)(de)(de)重(zhong)要組件(jian)。按其工(gong)(gong)作(zuo)頻(pin)帶的(de)(de)(de)(de)寬窄劃分為(wei)(wei)窄帶高(gao)(gao)(gao)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)和(he)寬帶高(gao)(gao)(gao)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)兩種，窄帶高(gao)(gao)(gao)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)通(tong)(tong)常以具有選頻(pin)濾波作(zuo)用(yong)的(de)(de)(de)(de)選頻(pin)電(dian)(dian)(dian)(dian)路(lu)(lu)作(zuo)為(wei)(wei)輸(shu)(shu)出(chu)(chu)(chu)回路(lu)(lu)，故又(you)稱為(wei)(wei)調諧(xie)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)或(huo)；寬帶高(gao)(gao)(gao)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)輸(shu)(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)(dian)路(lu)(lu)則是(shi)傳輸(shu)(shu)線變壓器(qi)(qi)(qi)(qi)或(huo)其他寬帶匹配(pei)電(dian)(dian)(dian)(dian)路(lu)(lu)，因此又(you)稱為(wei)(wei)非調諧(xie)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)。高(gao)(gao)(gao)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)是(shi)一種能量(liang)轉(zhuan)(zhuan)換，它將(jiang)電(dian)(dian)(dian)(dian)源供給的(de)(de)(de)(de)直流(liu)(liu)(liu)(liu)能量(liang)轉(zhuan)(zhuan)換成為(wei)(wei)高(gao)(gao)(gao)頻(pin)交流(liu)(liu)(liu)(liu)輸(shu)(shu)出(chu)(chu)(chu)在 課程(cheng)中已知，放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)可以按照導通(tong)(tong)角的(de)(de)(de)(de)不(bu)同，將(jiang)其分為(wei)(wei)甲、乙、丙(bing)(bing)(bing)三類(lei)工(gong)(gong)作(zuo)狀態(tai)。甲類(lei)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)流(liu)(liu)(liu)(liu)通(tong)(tong)角為(wei)(wei)360o，適用(yong)于(yu)小信號低(di)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)。乙類(lei)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)流(liu)(liu)(liu)(liu)通(tong)(tong)角約(yue)等于(yu) 180o；丙(bing)(bing)(bing)類(lei)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)流(liu)(liu)(liu)(liu)通(tong)(tong)角則小于(yu)180o。乙類(lei)和(he)丙(bing)(bing)(bing)類(lei)都適用(yong)于(yu)大(da)(da)(da)(da)功(gong)(gong)率(lv)(lv)(lv)工(gong)(gong)作(zuo)丙(bing)(bing)(bing)類(lei)工(gong)(gong)作(zuo)狀態(tai)的(de)(de)(de)(de)輸(shu)(shu)出(chu)(chu)(chu)功(gong)(gong)率(lv)(lv)(lv)和(he)效率(lv)(lv)(lv)是(shi)三種工(gong)(gong)作(zuo)狀態(tai)中者。高(gao)(gao)(gao)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)大(da)(da)(da)(da)多工(gong)(gong)作(zuo)于(yu)丙(bing)(bing)(bing)類(lei)。但丙(bing)(bing)(bing)類(lei)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)波形(xing)太大(da)(da)(da)(da)，因而不(bu)能用(yong)于(yu)低(di)頻(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)，只(zhi)能用(yong)于(yu)采用(yong)調諧(xie)回路(lu)(lu)作(zuo)為(wei)(wei)的(de)(de)(de)(de)諧(xie)振功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)。由于(yu)調諧(xie)回路(lu)(lu)具有濾波，回路(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)與仍然極近于(yu)正弦波形(xing)，失真很(hen)小。