什么是及其用途放大器是能把輸入訊號的電壓或功率放大的裝置，由電子管或晶體管、電源變壓器和其他電器元件組成。用在通訊、廣播、雷達、電視、自動控制等各種裝置中。
放大器用于發射機的末級，作用是將高頻已調波信號進行功率放大，以滿足發送功率的要求，然后經過天線將其輻射到空間，保證在一定區域內的接收機可以接收到滿意的信號電平，并且不干擾相鄰信道的通信。
高頻功率放大器是通信系統中發送裝置的重要組件。按其工作頻帶的寬窄劃分為窄帶高頻功率放大器和寬帶高頻功率放大器兩種，窄帶高頻功率放大器通常以具有選頻濾波作用的選頻電路作為輸出回路，故又稱為調諧功率放大器或諧振功率放大器；寬帶高頻功率放大器的輸出電路則是傳輸線變壓器或其他寬帶匹配電路，因此又稱為非調諧功率放大器。高頻功率放大器是一種能量轉換器件，它將電源供給的直流能量轉換成為高頻交流輸出在 “低頻電子線路”課程中已知，放大器可以按照電流導通角的不同，將其分為甲、乙、丙三類工作狀態。甲類放大器電流的流通角為360o，適用于小信號低功率放大。乙類放大器電流的流通角約等于 180o；丙類放大器電流的流通角則小于180o。乙類和丙類都適用于大功率工作丙類工作狀態的輸出功率和效率是三種工作狀態中高者。高頻功率放大器大多工作于丙類。但丙類放大器的電流波形失真太大，因而不能用于低頻功率放大，只能用于采用調諧回路作為負載的諧振功率放大。由于調諧回路具有濾波能力，回路電流與電壓仍然極近于正弦波形，失真很小。
什么是及其用途液壓放大器一般是配合電液比例閥和伺服閥使用。他的功能是將檢測、傳感等反饋的弱電信號轉化放大成為液壓閥控制電信號并與工控機聯鎖，對液壓閥進行功能動作控制。
放大器是能把輸入訊號的電壓或功率放大的裝置，由電子管或晶體管、電源變壓器和其他電器元件組成。用在通訊、廣播、雷達、電視、自動控制等各種裝置中。
原理：高頻功率放大器用于發射機的末級，作用是將高頻已調波信號進行功率放大，以滿足發送功率的要求，然后經過天線將其輻射到空間，保證在一定區域內的接收機可以接收到滿意的信號電平，并且不干擾相鄰信道的通信。
高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)是(shi)通(tong)(tong)(tong)信系統中(zhong)發送裝(zhuang)置的(de)(de)(de)(de)重要組件。按(an)其工(gong)(gong)作(zuo)頻(pin)(pin)帶(dai)(dai)的(de)(de)(de)(de)寬(kuan)(kuan)窄劃分為窄帶(dai)(dai)高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)和寬(kuan)(kuan)帶(dai)(dai)高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)兩種，窄帶(dai)(dai)高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)通(tong)(tong)(tong)常(chang)以具(ju)有(you)選頻(pin)(pin)濾(lv)波作(zuo)用的(de)(de)(de)(de)選頻(pin)(pin)電(dian)(dian)(dian)(dian)路(lu)(lu)作(zuo)為輸(shu)出(chu)回路(lu)(lu)，故(gu)又(you)稱為調(diao)諧(xie)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)或(huo)諧(xie)振功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)；寬(kuan)(kuan)帶(dai)(dai)高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)輸(shu)出(chu)電(dian)(dian)(dian)(dian)路(lu)(lu)則是(shi)傳輸(shu)線變壓器(qi)(qi)(qi)(qi)或(huo)其他寬(kuan)(kuan)帶(dai)(dai)匹(pi)配電(dian)(dian)(dian)(dian)路(lu)(lu)，因此(ci)又(you)稱為非調(diao)諧(xie)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)。高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)是(shi)一種能(neng)量(liang)轉換器(qi)(qi)(qi)(qi)件，它將電(dian)(dian)(dian)(dian)源供給的(de)(de)(de)(de)直流(liu)(liu)能(neng)量(liang)轉換成為高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)交流(liu)(liu)輸(shu)出(chu)在(zai) “低(di)頻(pin)(pin)電(dian)(dian)(dian)(dian)子線路(lu)(lu)”課程中(zhong)已知，放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)可以按(an)照電(dian)(dian)(dian)(dian)流(liu)(liu)導通(tong)(tong)(tong)角(jiao)的(de)(de)(de)(de)不同(tong)，將其分為甲(jia)、乙(yi)(yi)、丙三類(lei)(lei)(lei)工(gong)(gong)作(zuo)狀(zhuang)態(tai)。甲(jia)類(lei)(lei)(lei)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)流(liu)(liu)通(tong)(tong)(tong)角(jiao)為360o，適用于(yu)(yu)(yu)(yu)小(xiao)信號低(di)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)。乙(yi)(yi)類(lei)(lei)(lei)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)流(liu)(liu)通(tong)(tong)(tong)角(jiao)約等于(yu)(yu)(yu)(yu) 180o；丙類(lei)(lei)(lei)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)流(liu)(liu)通(tong)(tong)(tong)角(jiao)則小(xiao)于(yu)(yu)(yu)(yu)180o。乙(yi)(yi)類(lei)(lei)(lei)和丙類(lei)(lei)(lei)都(dou)適用于(yu)(yu)(yu)(yu)大(da)(da)(da)(da)(da)(da)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)工(gong)(gong)作(zuo)丙類(lei)(lei)(lei)工(gong)(gong)作(zuo)狀(zhuang)態(tai)的(de)(de)(de)(de)輸(shu)出(chu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)和效(xiao)率(lv)(lv)(lv)是(shi)三種工(gong)(gong)作(zuo)狀(zhuang)態(tai)中(zhong)高(gao)(gao)(gao)(gao)(gao)者。高(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)大(da)(da)(da)(da)(da)(da)多工(gong)(gong)作(zuo)于(yu)(yu)(yu)(yu)丙類(lei)(lei)(lei)。但(dan)丙類(lei)(lei)(lei)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)波形失(shi)真太大(da)(da)(da)(da)(da)(da)，因而不能(neng)用于(yu)(yu)(yu)(yu)低(di)頻(pin)(pin)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)，只(zhi)能(neng)用于(yu)(yu)(yu)(yu)采用調(diao)諧(xie)回路(lu)(lu)作(zuo)為負載的(de)(de)(de)(de)諧(xie)振功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)(fang)(fang)大(da)(da)(da)(da)(da)(da)。由于(yu)(yu)(yu)(yu)調(diao)諧(xie)回路(lu)(lu)具(ju)有(you)濾(lv)波能(neng)力(li)，回路(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)與(yu)電(dian)(dian)(dian)(dian)壓仍然(ran)極近(jin)于(yu)(yu)(yu)(yu)正弦波形，失(shi)真很(hen)小(xiao)。

什么是ATOS放大器及其用途