dc bias 中文意思是什麼
dc bias
解釋
直流偏壓-
Device degradation behaviors of typical - sized n - type metal induced lateral crystallized polycrystalline silicon thin film transistors were investigated under two kinds of dc bias stresses : hot carrier stress and self - heating stress
本文主要研究了典型尺寸的n型金屬誘導橫向結晶多晶硅薄膜晶體管在兩種常見的直流應力偏置下的退化現象:熱載流子退化和自加熱退化。 -
In a ccp system, there is a discontiguous characteristic on tuned substrate self - bias. when the impedance between substrate and ground was made increasingly inductive, a large negative dc potential developed on the substrate
在ccp （ capacitivecouplingplasma ）中調諧基片偏壓具有不連續變化現象，當基片之間為漸增的感抗時，基片上會產生漸增的負偏壓。 -
The bias magnetic field of the bias coil driven by bias current and small signal test current, results in the induced signal of the control coil. the terminal voltage of the control coil is detected by the test circuit. then the signal containing the information of rotor displacement is obtained, from which we can get the dc voltage signal proportional to the rotor displacement through half - wave rectification circuit and low pass circuit. this dc signal is put into a pid controller to get the control signal of the rotor displacement
偏置測試電路向偏置線圈輸入偏置電流和小信號測試電流，兩者產生的偏置磁場在控制線圈產生感應信號，檢測電路檢測控制線圈端電壓並提取含有轉子位移信息的電壓信號，該信號經半波整流電路和低通濾波電路后得到與轉子位移成正比例的直流信號，再由pid控制器轉換為轉子位移的控制信號，最後控制信號輸入功放電路產生控制電流，實現閉環控制。 -
The thesis analyses the problems on the noise of apd photoelectric receiving system. author designs apd laser signal receiving system circuits, front amplify circuit, controlling time - series logic circuits, dc / dc transform circuits. and takes apd bias voltage fuzzy control
分析了apd光電接收系統的噪聲問題，並對apd激光信號接收系統電路、前置放大電路、控制時序邏輯電路、 dc / dc變換電路進行了設計，採取了apd偏壓模糊控制。 -
The low insertion loss is achieved by optimizing the transistor widths and bias voltages, by minimizing the substrate resistances, and by dc biasing the transmit and receive nodes, which decreases the capacitances while increasing the p1db
通過優化mosfet的柵寬及偏置電壓可以降低插入損耗。在版圖設計中通過增加襯底接觸降低襯底電阻，從而減小插入損耗。另外，為接收和發送端提供直流偏置可以降低p1db 。 -
Also, cathode bias circuits ( with bypass capacitors ) are not very successful, since for dc bias purposes, the cathode resistor presents a high dc resistance equivalent at the anode, and the quiescent point is not very stable
而且，陰極偏壓電路（帶旁路電容）也很難成功，因為直流偏壓的原因，陰極電阻在屏級上表現出很高的等效直流電阻，這樣靜態工作點很難得以穩定。 -
In the simulation work, one 1. 5kw and one 18kw induction motors ? control system were simulated and two simplified control scheme were proposed. when developing the program in tms320f240 dsp, this paper solved two practical problems : the finite - length effect and dc bias effect. finally, sensorless control system based on adaptive filter theory are tested on the platform of 1. 5kw induction motor, the results show that the scheme ? performance is good
在模擬過程中，針對1 . 5kw和18kw異步電機進行了模擬，並在此基礎上提出兩種簡化控制方式；在tms320f240的具體編程過程中，分別對自適應濾波器的有限字長效應、直流偏置效應等非理想因素進行了修正和補償；最後，在1 . 5kw微型異步電機上進行了轉矩閉環無速度傳感器實驗，實驗結果表明了演算法完全可以達到預期的目標。 -
A driving signal with a dc bias voltage and ac voltage is usually necessary for sensing very small capacitance. the reliable operation conditions of the capacitive sensor for foreign acceleration had been researched with the assumption of the parallel comb plates. but the comb plates are actually not parallel for the reason of the drie process
前人在研究外界加速度信號對傳感器的作用時，假定驅動信號產生的靜電力作用在平行梳齒電容極板上，但是，在用drie工藝對硅進行刻蝕時會產生側蝕效應，從而得到的梳齒電容有一定的傾斜角度。 -
( 4 ) the study of the optical band gap of cnx film by uv - vis spectrophotometer. ( 5 ) by using the microhardness tester, we study the hardness of cnx film on the ceremic substrate by dc magnetron reactive sputtering with the feed ar and n2 flow rate, film thickness, substrate temperature and substrate bias
（ 5 ）用直流磁控反應濺射法，以陶瓷作為襯底，對在ar和n2不同流量、不同膜厚、不同基片溫度和對基片施加不同偏壓下沉積的薄膜，用< wp = 4 >顯微硬度計研究測試了不同工藝參數下的相應硬度。 -
A tunability of 60 % and figure of merit of 133 have been achieved under 30v dc bias, demonstrating their usefulness for frequency - agile microwave devices at the liquid nitrogen temperature
在液氮溫區表現出很好的微波器件應用前景。 4 、採用pld方法制備了高凰100 ）取向的bao . ssr05五o創51卿si集成薄膜。 -
Greatly different from previous works, the matching circuits and dc bias networks are bent many times, for minimizing the lna
與以往同類工作有很大不同，為了實現lna小型化的目的，對匹配電路和直流偏置網路採用多次曲折線的形式。 -
Moreover, the microstrip - waveguide transition and the circuit for dc bias in the vco are analyzed, and the analysis is generally useful for design of millimeter - wave planar circuit
最終，在微帶線上製成了w頻段平面集成體效應管壓控振蕩器，並進行了測試。 -
Although it is possible to close multiple paths, this is practical only in dc testing, for example, to apply continuous bias voltage to a number of duts
盡管可能會閉合多條路徑，但實際應用中，只有在dc測試中才會用到，例如對多個dut施加連續的偏置電壓。
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