bias amplifier 中文意思是什麼
bias amplifier
解釋
偏磁放大器-
We apply the agrawal ' s theory model of soa, and study the temporal characteristics of the output pulse for input picosecond optical pulses with different sharpness edges passing through a semiconductor optical amplifier, and find that the peak power and the pulse width of the output pulse depend on the input pulse peak power, the sharpness degree of the input pulse edge and the bias current of soa
本文應用agrawal的關于soa理論模型，詳細研究了具有不同陡峭邊沿的皮秒超高斯光脈沖經soa后的時域特性的變化，發現輸出脈沖的峰值功率、脈沖寬度與輸入脈沖的峰值功率、輸入脈沖邊沿的陡峭程度以及soa的偏置電流密切相關。 -
3. a 5 - w millimeter - wave power - combining amplifier is implemented and fabricated. the compact bias circuits and power - protection circuits for mmics is designed
3 .研製了ka頻段5w功率合成放大器，設計了緊湊的偏置電路和mmics功率單片的電源保護電路。 -
The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier
本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。 -
And then, based on the above theories, the circuit design and simulation means have been concretely applied in the internal modules of voltage reference, bias circuit, oscillator, error amplifier and drive circuit of the chip and so on. the relevant design indexes are successfully achieved. at last, the whole circuit simulation and layout design are completed
在此理論基礎上對該電源晶元內部的各個模塊，如電壓基準源、偏置電路、振蕩器、誤差放大電路和驅動電路等模塊進行了具體的電路設計和分析模擬，且達到了相應地設計指標，最後，完成了整體電路模擬和版圖設計。 -
Subcircuit models are designed and simulated, which includes bias current source, voltage reference, error amplifier, pwm comparator, driver circuit, protection circuits for over - temperature, over - current. at last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement
並對集成電路內的各個模塊包括電流偏置電路、基準電壓電路、誤差放大電路、三角波振蕩發生電路、 pwm比較電路、驅動電路、過熱保護電路和過流保護等進行了具體的設計和模擬，並對整體應用電路進行了模擬，結果均達到了預先設定的指標。 -
Broadband matching is very difficult, but we can make it easier with negative feedback and balanced amplifier. so at first we should choose a project, then according to the requirement of the low noise amplifier to choose the transistor, bias and matching
寬帶匹配網路的設計是一個難點，可以採用負反饋、平衡電路等形式降低寬帶匹配的難度，所以寬帶電路的設計首先是方案設計。 -
The paper analyzes in detail the mechanics and optics theory. in the light of the characteristic of the intensity modulation optical fiber sensor, the reference - way is presented to compensate the error signals which are caused by the bias light, dark current of photoelectric detector, temperature drift of pre - amplifier
文中詳細分析了這種傳感器的力學和光學工作原理，並且針對所選用的強度調制型光纖傳感器的工作特點，提出採用參考通道補償由於背景光、光電探測器的暗電流、前置放大器溫漂等因素引起的誤差。 -
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
對于微分脈沖伏安溶出測量，我們使用高精度高速saradc和低偏置電流運放構成微電流采樣系統，使用高精度dac和高速大電流緩沖放大器設計了恆電位計，並與微控制器共通組成電化學測量系統。 -
Design of a rf high power amplifier bias circuit
一種射頻大功率放大器電源偏置電路設計方法 -
To reduce power dissipation of the amplifier, a kind of on / off technology is used in the circuit. with a little bias current circuit to control the main bipolar transistor operation, the transistor will be in a state of on / off
採用器件旁路小電流工作電路，實現對低噪聲放大器主要工作晶體管的控制，使該晶體管按需要分別處于工作或關斷狀態，保證了放大器的極低功耗。 -
5. design bias and assistant circuit, realize 5. 65ghz big power amplifier ' s hardware and performance ' s test
5 .設計偏置電路和輔助電路，完成整個5 . 65ghz大功率脈沖放大器系統的製作和調試。
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