Rexroth放大器速度和精度是模擬電路兩個zui重要的性能指標,然而,這兩者的要求是互相制約、互為矛盾的。所以同時滿足這兩方面的要求是困難的。折疊共源共柵技術可以較成功地解決這一難題, 這種結構的運放具有較高的開環增益及很高的單位增益帶寬。全差分運放的缺點是它外部反饋環的共模環路增益很小, 輸出共模電平不能確定,因此,一般情況下需加共模反饋電路

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。
高頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)是通信(xin)系統中(zhong)發(fa)送裝置的(de)(de)(de)重要組(zu)件(jian)。按(an)其工(gong)作(zuo)(zuo)(zuo)頻(pin)(pin)帶(dai)的(de)(de)(de)寬(kuan)窄(zhai)劃分(fen)為(wei)(wei)窄(zhai)帶(dai)高頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)和(he)寬(kuan)帶(dai)高頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)兩種(zhong)，窄(zhai)帶(dai)高頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)通常(chang)以具有選(xuan)頻(pin)(pin)濾(lv)波(bo)作(zuo)(zuo)(zuo)用的(de)(de)(de)選(xuan)頻(pin)(pin)電(dian)(dian)(dian)路(lu)作(zuo)(zuo)(zuo)為(wei)(wei)輸出(chu)回(hui)(hui)路(lu)，故(gu)又稱為(wei)(wei)調諧(xie)(xie)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)或(huo)諧(xie)(xie)振(zhen)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)；寬(kuan)帶(dai)高頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)輸出(chu)電(dian)(dian)(dian)路(lu)則是傳(chuan)輸線(xian)變壓(ya)器(qi)(qi)(qi)(qi)(qi)或(huo)其他寬(kuan)帶(dai)匹(pi)配(pei)電(dian)(dian)(dian)路(lu)，因此又稱為(wei)(wei)非調諧(xie)(xie)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)。高頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)是一種(zhong)能(neng)量(liang)(liang)轉換(huan)器(qi)(qi)(qi)(qi)(qi)件(jian)，它將電(dian)(dian)(dian)源供給的(de)(de)(de)直流(liu)(liu)(liu)能(neng)量(liang)(liang)轉換(huan)成(cheng)為(wei)(wei)高頻(pin)(pin)交流(liu)(liu)(liu)輸出(chu)在 “低(di)頻(pin)(pin)電(dian)(dian)(dian)子線(xian)路(lu)"課程中(zhong)已知(zhi)，放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)可以按(an)照電(dian)(dian)(dian)流(liu)(liu)(liu)導通角(jiao)的(de)(de)(de)不(bu)同(tong)，將其分(fen)為(wei)(wei)甲、乙、丙三(san)類工(gong)作(zuo)(zuo)(zuo)狀(zhuang)態。甲類放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)流(liu)(liu)(liu)通角(jiao)為(wei)(wei)360o，適用于小信(xin)號低(di)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)。乙類放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)流(liu)(liu)(liu)通角(jiao)約等(deng)于180o；丙類放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)流(liu)(liu)(liu)通角(jiao)則小于180o。乙類和(he)丙類都適用于大(da)功(gong)(gong)率(lv)(lv)(lv)工(gong)作(zuo)(zuo)(zuo)丙類工(gong)作(zuo)(zuo)(zuo)狀(zhuang)態的(de)(de)(de)輸出(chu)功(gong)(gong)率(lv)(lv)(lv)和(he)效率(lv)(lv)(lv)是三(san)種(zhong)工(gong)作(zuo)(zuo)(zuo)狀(zhuang)態中(zhong)zui高者(zhe)。高頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)大(da)多工(gong)作(zuo)(zuo)(zuo)于丙類。但丙類放(fang)(fang)(fang)大(da)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)(liu)波(bo)形(xing)失真太大(da)，因而不(bu)能(neng)用于低(di)頻(pin)(pin)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)，只(zhi)能(neng)用于采(cai)用調諧(xie)(xie)回(hui)(hui)路(lu)作(zuo)(zuo)(zuo)為(wei)(wei)負載的(de)(de)(de)諧(xie)(xie)振(zhen)功(gong)(gong)率(lv)(lv)(lv)放(fang)(fang)(fang)大(da)。由于調諧(xie)(xie)回(hui)(hui)路(lu)具有濾(lv)波(bo)能(neng)力(li)，回(hui)(hui)路(lu)電(dian)(dian)(dian)流(liu)(liu)(liu)與電(dian)(dian)(dian)壓(ya)仍然(ran)極近于正弦波(bo)形(xing)，失真很(hen)小。

VT-VSPA2-50-10/T1
VT-VSPA2-50-10/T5
VT-VSPA2-50-1X/T1
VT-VSPA2-50-1X/T5
VT-HNC100-2-20/W-16-0-0
VT-HNC100-2-2X/W-16-0-0
VT5011/12-33R5E
VT-HNC100-1-22/W-08-I-0
VT-HNC100-1-22/W-08-I-0
VT SR7 13/1  VTSR713/1
VTHNC100220W1600
VTHACD113V01D0
VT-2000K42 VT2000K42
VT5007-17A  VT 5007-17A
VT2000K42  VT 2000K42 
VT-11029-1X  VT11029-1X