光伏模(mo)式的(de)優點是(shi)暗(an)電(dian)流(liu)(liu)的(de)減少。在普通(tong)二(er)極(ji)管中(zhong)，施(shi)加(jia)反(fan)向(xiang)偏置(zhi)電(dian)壓會增加(jia)反(fan)向(xiang)電(dian)流(liu)(liu)，因(yin)為反(fan)向(xiang)偏置(zhi)會降(jiang)低(di)擴散電(dian)流(liu)(liu)但(dan)不會降(jiang)低(di)漂(piao)移電(dian)流(liu)(liu)，而且還會因(yin)為泄漏。同(tong)樣(yang)的(de)事情(qing)發生(sheng)在光電(dian)二(er)極(ji)管中(zhong)，但(dan)反(fan)向(xiang)電(dian)流(liu)(liu)稱(cheng)為暗(an)電(dian)流(liu)(liu)。更高的(de)反(fan)向(xiang)偏置(zhi)電(dian)壓會導致(zhi)更多的(de)暗(an)電(dian)流(liu)(liu)，因(yin)此(ci)通(tong)過(guo)使(shi)用(yong)(yong)運算(suan)放大(da)器(qi)將(jiang)光電(dian)二(er)極(ji)管保(bao)持在大(da)約(yue)零(ling)偏置(zhi)，我(wo)們(men)實際上消除了(le)暗(an)電(dian)流(liu)(liu)。因(yin)此(ci)，光伏模(mo)式適(shi)用(yong)(yong)于需(xu)要化(hua)低(di)照度(du)性能的(de)應用(yong)(yong)。光電(dian)二(er)極(ji)管電(dian)路(lu)中(zhong)的(de)光電(dian)導模(mo)式要將(jiang)上述檢測器(qi)電(dian)路(lu)切換到(dao)光電(dian)導模(mo)式，我(wo)們(men)將(jiang)光電(dian)二(er)極(ji)管的(de)陽(yang)極(ji)連接(jie)到(dao)負電(dian)壓電(dian)源而不是(shi)接(jie)地。陰極(ji)仍為 0 V，但(dan)陽(yang)極(ji)電(dian)壓低(di)于 0 V；因(yin)此(ci)，光電(dian)二(er)極(ji)管是(shi)反(fan)向(xiang)偏置(zhi)的(de)。廣(guang)州跨阻光電(dian)生(sheng)產廠家推薦成都意科科技有限責(ze)任公司。西安低(di)噪聲光電(dian)計數

向(xiang)(xiang) pn 結(jie)(jie)施加(jia)反(fan)(fan)向(xiang)(xiang)偏(pian)置電(dian)(dian)(dian)(dian)壓(ya)會(hui)(hui)導(dao)致耗(hao)盡區變(bian)寬(kuan)(kuan)。這(zhe)在光電(dian)(dian)(dian)(dian)二(er)極管(guan)應用的(de)(de)(de)(de)背景下(xia)有兩(liang)個有益的(de)(de)(de)(de)影響。首先，如上(shang)一篇文章所述，較(jiao)寬(kuan)(kuan)的(de)(de)(de)(de)耗(hao)盡區會(hui)(hui)使(shi)光電(dian)(dian)(dian)(dian)二(er)極管(guan)更敏(min)感。因此，當(dang)您想要(yao)產生與照(zhao)度相關的(de)(de)(de)(de)更多(duo)輸出信號時，光電(dian)(dian)(dian)(dian)導(dao)模式是一個不(bu)錯的(de)(de)(de)(de)選擇(ze)(ze)。其次(ci)，較(jiao)寬(kuan)(kuan)的(de)(de)(de)(de)耗(hao)盡區會(hui)(hui)降低(di)光電(dian)(dian)(dian)(dian)二(er)極管(guan)的(de)(de)(de)(de)結(jie)(jie)電(dian)(dian)(dian)(dian)容(rong)。在上(shang)面所示的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)路中(zhong)，反(fan)(fan)饋電(dian)(dian)(dian)(dian)阻和結(jie)(jie)電(dian)(dian)(dian)(dian)容(rong)（以及其他電(dian)(dian)(dian)(dian)容(rong)源）的(de)(de)(de)(de)存(cun)在限制了(le)系統的(de)(de)(de)(de)閉環帶寬(kuan)(kuan)。與基本(ben)的(de)(de)(de)(de) RC 低(di)通濾(lv)波器(qi)一樣(yang)，減小電(dian)(dian)(dian)(dian)容(rong)會(hui)(hui)增加(jia)截(jie)止頻率。因此，光電(dian)(dian)(dian)(dian)導(dao)模式允許更寬(kuan)(kuan)的(de)(de)(de)(de)帶寬(kuan)(kuan)，并且當(dang)您需要(yao)化(hua)檢測器(qi)響應照(zhao)度快速變(bian)化(hua)的(de)(de)(de)(de)能力時更可(ke)取。反(fan)(fan)向(xiang)(xiang)偏(pian)壓(ya)還(huan)擴展(zhan)了(le)光電(dian)(dian)(dian)(dian)二(er)極管(guan)的(de)(de)(de)(de)線(xian)性工作范(fan)圍。如果您擔心在高照(zhao)度下(xia)保(bao)持測量(liang)，您可(ke)以使(shi)用光電(dian)(dian)(dian)(dian)導(dao)模式，然后根據您的(de)(de)(de)(de)系統要(yao)求(qiu)選擇(ze)(ze)反(fan)(fan)向(xiang)(xiang)偏(pian)置電(dian)(dian)(dian)(dian)壓(ya)。但(dan)請(qing)記住(zhu)，更多(duo)的(de)(de)(de)(de)反(fan)(fan)向(xiang)(xiang)偏(pian)壓(ya)也會(hui)(hui)增加(jia)暗電(dian)(dian)(dian)(dian)流。西(xi)安低(di)噪聲光電(dian)(dian)(dian)(dian)計數成都紅外(wai)光電(dian)(dian)(dian)(dian)生產廠(chang)家推薦成都意(yi)科科技有限責(ze)任公司。

近年(nian)來，光(guang)(guang)電(dian)(dian)(dian)(dian)二(er)(er)極管(guan)的(de)(de)小(xiao)型化已經取得(de)了的(de)(de)成(cheng)(cheng)就。隨著技術的(de)(de)進(jin)步，光(guang)(guang)電(dian)(dian)(dian)(dian)二(er)(er)極管(guan)變得(de)比以(yi)往任何時候(hou)都更(geng)小(xiao)、更(geng)緊湊、更(geng)節能(neng)(neng)(neng)。這種尺寸的(de)(de)減(jian)小(xiao)為(wei)(wei)將光(guang)(guang)電(dian)(dian)(dian)(dian)二(er)(er)極管(guan)集成(cheng)(cheng)到有限空間的(de)(de)設備(bei)(如可穿(chuan)戴設備(bei)、智(zhi)能(neng)(neng)(neng)手機和物聯網(IoT)設備(bei))中開(kai)辟了全(quan)新(xin)的(de)(de)可能(neng)(neng)(neng)性(xing)(xing)。將光(guang)(guang)學(xue)傳(chuan)(chuan)感(gan)(gan)功能(neng)(neng)(neng)集成(cheng)(cheng)到這些緊湊的(de)(de)設備(bei)中，為(wei)(wei)健康(kang)監測(ce)、手勢(shi)識別和環境光(guang)(guang)傳(chuan)(chuan)感(gan)(gan)等領域的(de)(de)創新(xin)應用鋪平(ping)了道路。材(cai)(cai)料(liao)科學(xue)在(zai)推進(jin)光(guang)(guang)電(dian)(dian)(dian)(dian)二(er)(er)極管(guan)技術方面發揮了至關重要(yao)的(de)(de)作用。有機半導體(ti)(ti)、鈣鈦礦和納米材(cai)(cai)料(liao)等新(xin)材(cai)(cai)料(liao)的(de)(de)集成(cheng)(cheng)，使光(guang)(guang)電(dian)(dian)(dian)(dian)二(er)(er)極管(guan)的(de)(de)性(xing)(xing)能(neng)(neng)(neng)得(de)到了提(ti)高。這些材(cai)(cai)料(liao)增(zeng)強了光(guang)(guang)吸收(shou)，改善了電(dian)(dian)(dian)(dian)荷傳(chuan)(chuan)輸特性(xing)(xing)，增(zeng)加了穩定(ding)性(xing)(xing)，從(cong)而提(ti)高了效率和更(geng)好的(de)(de)整體(ti)(ti)器件性(xing)(xing)能(neng)(neng)(neng)。這一進(jin)展為(wei)(wei)新(xin)的(de)(de)應用打開(kai)了大門(men)，包(bao)括太陽能(neng)(neng)(neng)電(dian)(dian)(dian)(dian)池(chi)板、成(cheng)(cheng)像傳(chuan)(chuan)感(gan)(gan)器和高速通信系統。

通過(guo)加(jia)載一個大約50歐(ou)姆左右的(de)(de)(de)(de)(de)阻(zu)值的(de)(de)(de)(de)(de)光(guang)(guang)電(dian)二(er)極管(guan)(guan)，你就可(ke)以從光(guang)(guang)敏模(mo)式(shi)中得到很(hen)多益(yi)處(chu)。如果二(er)極管(guan)(guan)電(dian)壓沒超(chao)過(guo)20 mV，就沒必(bi)要對二(er)極管(guan)(guan)進行正向偏置，同(tong)時響應也是(shi)是(shi)合理的(de)(de)(de)(de)(de)并且快速(su)的(de)(de)(de)(de)(de)。然而(er)靈敏度(du)會很(hen)低。雪(xue)崩式(shi)光(guang)(guang)電(dian)二(er)極管(guan)(guan)是(shi)特殊的(de)(de)(de)(de)(de)模(mo)式(shi)，需要對其提(ti)供接近(jin)于擊穿電(dian)壓的(de)(de)(de)(de)(de)反向偏置電(dian)壓。這就使(shi)得在低光(guang)(guang)強(qiang)的(de)(de)(de)(de)(de)情況(kuang)下，輸出電(dian)流可(ke)以被(bei)放(fang)大。選(xuan)擇光(guang)(guang)電(dian)二(er)極管(guan)(guan)的(de)(de)(de)(de)(de)時候會存在很(hen)多權衡，包括光(guang)(guang)電(dian)二(er)極管(guan)(guan)的(de)(de)(de)(de)(de)尺寸，電(dian)容，噪聲，暗電(dian)流以及封裝類型。一般來說，是(shi)選(xuan)用較(jiao)小(xiao)的(de)(de)(de)(de)(de)同(tong)時帶有(you)反射器或者透鏡可(ke)以聚集光(guang)(guang)源的(de)(de)(de)(de)(de)光(guang)(guang)電(dian)二(er)極管(guan)(guan)。德州(zhou)儀器沒有(you)生產單獨(du)的(de)(de)(de)(de)(de)光(guang)(guang)電(dian)二(er)極管(guan)(guan)，然而(er)對于很(hen)多基本的(de)(de)(de)(de)(de)應用，將光(guang)(guang)電(dian)二(er)極管(guan)(guan)和(he)跨阻(zu)放(fang)大器集成在一塊芯片上(shang)濱(bin)松光(guang)(guang)電(dian)生產廠家推(tui)薦成都意科科技有(you)限責任公司。

光(guang)(guang)(guang)(guang)電(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)模塊(kuai)是一(yi)種(zhong)光(guang)(guang)(guang)(guang)電(dian)傳感(gan)器(qi)，其主(zhu)要(yao)作(zuo)用(yong)(yong)是將光(guang)(guang)(guang)(guang)信號(hao)(hao)(hao)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)成(cheng)(cheng)電(dian)信號(hao)(hao)(hao)或將電(dian)信號(hao)(hao)(hao)轉(zhuan)(zhuan)(zhuan)(zhuan)化為光(guang)(guang)(guang)(guang)信號(hao)(hao)(hao)，它(ta)由光(guang)(guang)(guang)(guang)發射單元(yuan)和(he)光(guang)(guang)(guang)(guang)接(jie)收(shou)單元(yuan)兩部分組成(cheng)(cheng)，光(guang)(guang)(guang)(guang)發射單元(yuan)一(yi)般由發光(guang)(guang)(guang)(guang)二極(ji)管(guan)(guan)或半(ban)導體(ti)激(ji)光(guang)(guang)(guang)(guang)器(qi)構成(cheng)(cheng)，它(ta)能將電(dian)信號(hao)(hao)(hao)轉(zhuan)(zhuan)(zhuan)(zhuan)成(cheng)(cheng)光(guang)(guang)(guang)(guang)信號(hao)(hao)(hao)并(bing)傳輸(shu)到(dao)一(yi)定距離內的接(jie)收(shou)端(duan)，本(ben)文就來講解光(guang)(guang)(guang)(guang)電(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)模塊(kuai)的作(zuo)用(yong)(yong)以及(ji)原理(li)。光(guang)(guang)(guang)(guang)電(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)模塊(kuai)能夠將光(guang)(guang)(guang)(guang)信號(hao)(hao)(hao)轉(zhuan)(zhuan)(zhuan)(zhuan)化成(cheng)(cheng)電(dian)信號(hao)(hao)(hao)，或將電(dian)信號(hao)(hao)(hao)轉(zhuan)(zhuan)(zhuan)(zhuan)化成(cheng)(cheng)光(guang)(guang)(guang)(guang)信號(hao)(hao)(hao)，這是它(ta)基本(ben)的作(zuo)用(yong)(yong)，例如它(ta)可以將激(ji)光(guang)(guang)(guang)(guang)光(guang)(guang)(guang)(guang)束轉(zhuan)(zhuan)(zhuan)(zhuan)變為電(dian)信號(hao)(hao)(hao)，并(bing)通(tong)過電(dian)纜傳輸(shu)到(dao)接(jie)收(shou)器(qi)，再轉(zhuan)(zhuan)(zhuan)(zhuan)化為光(guang)(guang)(guang)(guang)信號(hao)(hao)(hao)，從而(er)實現(xian)光(guang)(guang)(guang)(guang)纖通(tong)信。在光(guang)(guang)(guang)(guang)電(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)模塊(kuai)中，光(guang)(guang)(guang)(guang)電(dian)二極(ji)管(guan)(guan)、光(guang)(guang)(guang)(guang)電(dian)倍(bei)增(zeng)管(guan)(guan)或Avalanche型(xing)光(guang)(guang)(guang)(guang)電(dian)二極(ji)管(guan)(guan)等(deng)接(jie)收(shou)器(qi)件的功(gong)率(lv)較小，不(bu)能滿足實際工程中的使用(yong)(yong)要(yao)求，因此需要(yao)經過信號(hao)(hao)(hao)放大器(qi)進行電(dian)路放大，從而(er)增(zeng)強信號(hao)(hao)(hao)強度和(he)靈敏度。廣州IV光(guang)(guang)(guang)(guang)電(dian)生(sheng)產廠家(jia)推薦成(cheng)(cheng)都意科科技有限責(ze)任公司。深圳跨阻光(guang)(guang)(guang)(guang)電(dian)生(sheng)產廠家(jia)

深圳低(di)噪(zao)(zao)聲(sheng)光電生產廠家(jia)推薦成都意科科技有限責任(ren)公司。西安低(di)噪(zao)(zao)聲(sheng)光電計數(shu)

光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)模(mo)(mo)塊(kuai)的工作原(yuan)理(li)光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)模(mo)(mo)塊(kuai)的工作原(yuan)理(li)基于(yu)(yu)光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)器(qi)(qi)的原(yuan)理(li)，結合相關的電(dian)(dian)(dian)(dian)子(zi)元件和(he)(he)電(dian)(dian)(dian)(dian)路(lu)設計。1、光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)器(qi)(qi)：光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)模(mo)(mo)塊(kuai)的部(bu)分(fen)是光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)器(qi)(qi)，它能(neng)(neng)夠(gou)將入射(she)光(guang)(guang)(guang)(guang)(guang)信(xin)號轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)為(wei)電(dian)(dian)(dian)(dian)信(xin)號。光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)器(qi)(qi)的工作原(yuan)理(li)已在前(qian)(qian)面的部(bu)分(fen)進行(xing)了解釋。2、前(qian)(qian)置放大(da)(da)器(qi)(qi)：光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)模(mo)(mo)塊(kuai)通常包(bao)含(han)一個前(qian)(qian)置放大(da)(da)器(qi)(qi)，用(yong)于(yu)(yu)放大(da)(da)光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)器(qi)(qi)輸(shu)出的弱電(dian)(dian)(dian)(dian)信(xin)號。前(qian)(qian)置放大(da)(da)器(qi)(qi)能(neng)(neng)夠(gou)提高(gao)信(xin)號的強(qiang)度(du)和(he)(he)質量(liang)，以(yi)便后續(xu)的信(xin)號處理(li)和(he)(he)分(fen)析。3、濾波器(qi)(qi)：光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)模(mo)(mo)塊(kuai)可(ke)能(neng)(neng)還(huan)包(bao)含(han)濾波器(qi)(qi)，用(yong)于(yu)(yu)選擇特(te)定波長(chang)或頻(pin)率范圍的光(guang)(guang)(guang)(guang)(guang)信(xin)號。濾波器(qi)(qi)可(ke)以(yi)幫(bang)助提高(gao)光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)模(mo)(mo)塊(kuai)對(dui)特(te)定光(guang)(guang)(guang)(guang)(guang)譜范圍的響應(ying)，并減少來自其他光(guang)(guang)(guang)(guang)(guang)源的干擾。4、信(xin)號處理(li)電(dian)(dian)(dian)(dian)路(lu)：光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)模(mo)(mo)塊(kuai)還(huan)包(bao)括(kuo)信(xin)號處理(li)電(dian)(dian)(dian)(dian)路(lu)，用(yong)于(yu)(yu)對(dui)光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)(huan)(huan)器(qi)(qi)輸(shu)出的電(dian)(dian)(dian)(dian)信(xin)號進行(xing)進一步的處理(li)和(he)(he)調節。信(xin)號處理(li)電(dian)(dian)(dian)(dian)路(lu)可(ke)以(yi)包(bao)括(kuo)放大(da)(da)、濾波、調制等功(gong)能(neng)(neng)，以(yi)滿足具體應(ying)用(yong)的需求。西(xi)安低噪聲光(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)計數

成都(dou)意科科技(ji)有(you)限責任公司是一家有(you)著(zhu)先進(jin)(jin)的(de)(de)(de)(de)發展(zhan)理念，先進(jin)(jin)的(de)(de)(de)(de)管理經(jing)驗，在(zai)發展(zhan)過(guo)程中不(bu)(bu)斷完善(shan)自(zi)(zi)己(ji)，要(yao)求自(zi)(zi)己(ji)，不(bu)(bu)斷創(chuang)(chuang)新(xin)，時(shi)刻準(zhun)備著(zhu)迎(ying)接更(geng)多(duo)挑戰(zhan)的(de)(de)(de)(de)活力(li)公司，在(zai)四川省等地區的(de)(de)(de)(de)電子元器(qi)件中匯聚了大(da)量的(de)(de)(de)(de)人脈(mo)以(yi)(yi)及**，在(zai)業(ye)界也收獲了很多(duo)良好的(de)(de)(de)(de)評價，這些都(dou)源自(zi)(zi)于(yu)自(zi)(zi)身(shen)的(de)(de)(de)(de)努(nu)力(li)和(he)大(da)家共同(tong)進(jin)(jin)步的(de)(de)(de)(de)結果，這些評價對(dui)我(wo)們(men)而言(yan)是比較好的(de)(de)(de)(de)前進(jin)(jin)動力(li)，也促使(shi)我(wo)們(men)在(zai)以(yi)(yi)后(hou)的(de)(de)(de)(de)道(dao)路(lu)上保持(chi)奮發圖強(qiang)、一往無前的(de)(de)(de)(de)進(jin)(jin)取創(chuang)(chuang)新(xin)精神，努(nu)力(li)把公司發展(zhan)戰(zhan)略(lve)推(tui)向一個(ge)新(xin)高(gao)度，在(zai)全(quan)體員工共同(tong)努(nu)力(li)之下(xia)，全(quan)力(li)拼(pin)搏將(jiang)共同(tong)成都(dou)意科科技(ji)供應和(he)您(nin)一起攜(xie)手走(zou)向更(geng)好的(de)(de)(de)(de)未來，創(chuang)(chuang)造更(geng)有(you)價值的(de)(de)(de)(de)產品，我(wo)們(men)將(jiang)以(yi)(yi)更(geng)好的(de)(de)(de)(de)狀態，更(geng)認(ren)真的(de)(de)(de)(de)態度，更(geng)飽滿的(de)(de)(de)(de)精力(li)去(qu)(qu)創(chuang)(chuang)造，去(qu)(qu)拼(pin)搏，去(qu)(qu)努(nu)力(li)，讓我(wo)們(men)一起更(geng)好更(geng)快的(de)(de)(de)(de)成長！

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