buffer n. 1.【機(jī)械工程】緩沖器,緩沖墊;阻尼器,減震器;消聲器。 2.【化學(xué)】緩沖,緩沖劑。 3.緩沖者;緩沖物;緩沖國(guó)(= buffer state〕。 4.〔計(jì)算機(jī)〕緩沖存儲(chǔ)裝置。 oil buffer【機(jī)械工程】油壓減震器。 vt. 1.【化學(xué)】用緩沖劑處理。 2.緩和;緩沖;保護(hù);使不利影響減少。 buffer economy by raising interest rates 以提高利率來(lái)保護(hù)經(jīng)濟(jì)。 The drug buffer-ed his pain. 這劑藥減輕了他的病痛。 buffer2 n. 1.【機(jī)械工程】拋(光)盤(pán),拋光輪,拋光棒。 2.拋光工人。 n. 1.〔英俚〕無(wú)能的人,老派人物。 2.家伙,人。 3.【航?!克諿掌帆]長(zhǎng)副手。 He was a bit of buffer. 他有點(diǎn)低能。 an old buffer 老家伙,老糊涂,老朽。
An output buffer amplifier used in detection circuit of micro sensor 用于微傳感器讀出電路的輸出緩沖放大器
Buffer amplifier section 緩沖放大部分
Every column in sensor array work in parallel and have their own cds noise reducing circuit . the signals after fpn reducing are output from the output buffer amplifiers 傳感陣列中各列感光單元的傳感信號(hào)并行輸出,分別由對(duì)應(yīng)的相關(guān)二次采樣電路進(jìn)行降噪處理,去除固定模式噪聲后的信號(hào)通過(guò)輸出緩沖放大電路進(jìn)行輸出。
If the node is at , or near to , ground then a grounded guard ring will be appropriate , if it is at some other potential it may be necessary to use a high input impedance buffer amplifier , with its input connected to the node , to force the guard ring to the node potential 如果被保護(hù)的節(jié)點(diǎn)的電位是(或接近)零電位,采用地線保護(hù)環(huán)最為合適;如果節(jié)點(diǎn)電位是其他值,那么可以用高輸入阻抗放大器組成緩沖器,輸入端連接該節(jié)點(diǎn),輸出端連接保護(hù)環(huán)。
Become a kind of new electronics circuit - current - mode circuit . it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components , they are stronger modified standard current - mode parts in fuctions on this foundation . mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ) , they are all function very strong standard current - mode parts , they all can provide some circuit functions of better than general operation amplifier , because they have the voltage importation and the current importation , therefore use it since can carry out the voltage - mode signal processing circuit expediently , can also carry out the current - mode signal processing circuit expediently , and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode , but have their advantages more according to the current - mode filter of the modified current conveyor , because it constitutes in brief , the filter wave function is stronger and they are better than in general use operation amplifier of many advantages , be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small , the impedance is different from etc . advantages , otherwise they have biggish dynamic range , and flexible circuit synthesize , so they are the best active parts 從第二代電流傳輸器ccii入手,重點(diǎn)研究了以下幾種改進(jìn)型的第二代電流傳輸器:改進(jìn)的差動(dòng)差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結(jié)構(gòu)及其模型。然后在此基礎(chǔ)上系統(tǒng)地研究了基于這幾種改進(jìn)型的第二代電流傳輸器的濾波器的設(shè)計(jì)方法,主要方法和結(jié)果如下:利用mddccii設(shè)計(jì)了差分式連續(xù)時(shí)間電流模式低通、帶通濾波器;電流模式跳耦結(jié)構(gòu)考爾低通濾波器;利用fbccii設(shè)計(jì)了帶通二階節(jié)濾波器及電流模式雙二階通用濾波器;設(shè)計(jì)了基于多輸出端ftfn的電流模式二階通用濾波器電路;通過(guò)數(shù)字化開(kāi)關(guān)選擇的基于fbftfn的電流模式通用濾波器;設(shè)計(jì)了基于最少個(gè)數(shù)電流緩沖放大器(兩個(gè)cdba )的多功能通用電流模式濾波器及其在非理想因素情況下分析。設(shè)計(jì)濾波器的主要方法是采用級(jí)聯(lián)設(shè)計(jì)、運(yùn)算模擬(信號(hào)流圖法)和反饋設(shè)計(jì)(跳耦法) 。
The correlated double sampling ( cds ) circuits structure is used to reduce the fixed pattern noise ( fpn ) of the cmos sensors , and improve the signal - noise ratio ( snr ) . the 256 photodiodes arrayed 4 quadrants sensor consists 16x16 active photodiodes array . correlated double sampling processing circuits , output buffer amplifiers and digital control part 針對(duì)cmos制造工藝中mos器件固定模式噪聲( fixedpatternnoise , fpn )較大的不足,研究中采用了相關(guān)二次采樣( correlateddoublesampling , cds )電路降低固定模式噪聲,從而提高了傳感器的信噪比( signalnoiseratio , snr ) 。
The resonance network is connected to the gate , then the output and input matching network is designed to satisfy the oscillation criteria . then harmonic balance method is used to analysize and optimize the output power and phase noise . to minimize the load pulling effect a buffer amplifier is designed to isolate the oscillator and the load 本文在場(chǎng)效應(yīng)管fet柵極上加上諧振網(wǎng)絡(luò)(諧振網(wǎng)絡(luò)是通過(guò)cst仿真得到的,它是串聯(lián)反饋回路,介質(zhì)工作在te01模,對(duì)于其后的fet ,它又相當(dāng)于一個(gè)帶阻濾波器) ,然后設(shè)計(jì)輸入輸出匹配電路,使電路結(jié)構(gòu)滿足起振條件,之后繼續(xù)用諧波平衡法仿真和優(yōu)化,使振蕩器輸出功率合適,相位噪聲很低。
The electro - chemical measurement system used to perform dpsv measurement is constructed with two parts , a low - current measurement system consists of low input bias current operational amplifier and a high resolution sar adc and a potentialstat consists of high resolution dac and high current buffer amplifier 對(duì)于微分脈沖伏安溶出測(cè)量,我們使用高精度高速saradc和低偏置電流運(yùn)放構(gòu)成微電流采樣系統(tǒng),使用高精度dac和高速大電流緩沖放大器設(shè)計(jì)了恒電位計(jì),并與微控制器共通組成電化學(xué)測(cè)量系統(tǒng)。