forward voltage 中文意思是什麼
forward voltage
解釋
導通電壓-
However, up to today with the development of social industrialization, especially the advance of building and building technology, the successive appearance of land three - dimensional usage such as high building, overhead railway, underground railway, air corridor, underground market, the wire of high voltage and last sewer etc., at the same time, many problems produced by the ownership and the usage of land space also have been put forward
土地所有權的行使及於土地的上下，土地所有權的效力「上達天宇，下及地心」 。然而，時至今日，隨著社會工業化的發展，特別是現代化土木、建築技術的進步，高樓大廈、高架鐵路、地下鐵道、空中走廊、地下商場、高壓電線、上下水道等土地立體化利用情形陸續出現，同時，因對土地空間所有和利用所產生的諸多問題也開始被提出。 -
Mems ( micro electromechanical system ) has become one of the most rapidly development technologies. along with the rapid development of mems techniques, capacitive sensor is used widely whose capacitance changes small, which has put forward the new request to the measurement technique. the common measure for capacitance measurement is that convert capacitance to voltage, electric current or frequency. the area of polar plate of the capacitor becomes smaller and smaller, and the total capacitance of micro capacitive sensor is usually several pico farad only. as a result, its change amount is smaller
Mems （ microelectromechanicalsystem ）近年來發展最快的技術之一，隨著mems技術的快速發展，電容式加速度計的電容變化變化量越來越小，對檢測技術提出了新的要求。在電容式傳感器中，常用電容檢測電路是將其轉換為電壓、電流或者頻率信號。目前的微型電容傳感器的極板面積變得越來越小，電容總量只有幾個pf ，變化量就更小。 -
Brings forward the basic network cell model of symmetrical blast vault and asymmetric blast vault. then studies and analyses airflow in vault of main voltage switchyard hall of xiluodu hydropower station which is far cry and large numbers of airflow conflux, brings forward concept of “ virtual embranchment ” and corresponding basic network cell model, regresses calculate expressions of flux uniformity coefficient and impedance of “ virtual embranchment ” of vault of main voltage switchyard hall of xiluodu hydropower station
而後又採用cfd數值模擬的方法對溪洛渡水電站主變洞排風拱頂這種多股氣流匯流的長距離通道內的氣流流動進行了分析，提出了「虛擬分支」的概念和相應的網路基元模型，並回歸得到了溪洛渡水電站主變洞排風拱頂各個排風「虛擬分支」風量均勻系數以及阻抗的計算公式。 -
A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later
每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲，由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成，前級採用電壓型pwm前饋控制技術，后級採用三態dpm電流滯環控制技術。 -
Abstract : in fourier transform profilometry, because of the nonlinear relationship between the irradiant incident upon a ccd dete ctor andthe voltage it outputs, it will cause phase evaluation errors. here, we ex plain the errorsource by theoretical deducing, then make a simulation. at last, a method to decrease thiserror is put forward
文摘:在傅里葉變換輪廓術中，由於ccd探測器光電響應的非線性，將在測量中引入高次項，從而對相位的求解造成較大誤差，通過理論的推導定性地解釋了誤差的來由，並用計算機進行了模擬計算，最後提出了減小誤差的方法。 -
To comply with the low - power - consumption application, low - voltage design is taken into account by using some special circuit structures. besides there are many nonideal effects in pll which degrade the loop performance badly, some efficient solutions have been put forward to suppress the undesired ones
此外論文還討論了若干制約環路性能的非理想效應，並在借鑒國外相關理論成果的基礎上，成功設計了克服這類效應的一些改進電路。 -
The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward
介紹了限制寬帶放大器頻帶寬度的因素，通過分析mosfet的本徵參數、寄生參數對頻率特性的影響，提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法；分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響，根據應用於雙極晶體管電路的跨導線性原理，提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器，獲得了良好的頻率響應。 -
Unfortunately, though the lifetime control technology reduces the stored charge, it increases the forward voltage drop ( vr ) and the reverse leakage current ( i, ). therefore, si pin diode cannot realize a good trade - off in qs - vf - i, -. the appearance of sige material and sige / si hetero - junction technology has changed this situation
但少子壽命控制技術在減少存貯電賀q _ s的同時，也增大了正向通態壓降v _ f ，和反向漏電流i _ r ，因此很難實現qs - v _ f - i _ r三者良好的折衷關系。 -
The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level
本論文作者通過模擬測試，驗證了課題研究的理論設想，並設計製作了具有低陽極發射效率結構的高壓功率frd ，利用局域鉑摻雜和電子輻照相結合的壽命控制方式，實現器件反向恢復時間的極大減小，並且反向漏電流、軟度因子、正向壓降等關鍵參數也較理想，且具有極佳的漏電溫度特性，達到器件綜合性能的優良折衷，達到國際先進水平。 -
Specific issues examined are : compensation for the variation of the stator resistance, the offset error of the dc bus voltage, the voltage error generated by the forward voltage drop the dead time of the switches, improvement of the steady state performance, and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis
定子電阻變化，直流母線電壓漂移，開關器件反向相電壓降、逆變器死區時間引起的電壓誤差的補償，提高系統穩態運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制演算法的一個卓越的性能。 -
Maximum peak forward voltage
最大正向峰壓 -
The forward voltage drop in the on - state is only a few volts ( typically 1 to 3 v depending on the device blocking voltage rating )
在導通狀態的正向壓降很小（取決于阻斷電壓的值，一般為1 ~ 3伏） 。 -
Note : 1. the forward voltage data did not including +. 01v testing tolerance
注意: 1 .正向電壓得數據不要包括0 . 1v的測試數據 -
With forward voltage of white led lower and lower, the efficiency of traditional charge pump driver is lower and lower, too. the new auto - adjustable charge pump can keep the charge pump working in high efficient 1x mode as long as possible
根據負載led的正向壓降和輸入電壓選擇工作模式，可以讓驅動器最大限度地工作在高效率的1x模式下，有效地提高了驅動器的led效率。 -
Forward voltage drop
正向電壓降 -
Peak forward voltage
正向峰值電壓 -
For the pin diode, its major transient behaviors are forward voltage recovery and reverse current recovery. this dissertation describes these performances by lumped - charge approach, and then developed an improved lumped - charge model for pin diode and a corresponding parameter extraction approach, which can reduce parameter measurement and enhance parameter accuracy
Pin二極體中主要的瞬態現象是正向電壓恢復和反向電流恢復，本文採用集總電荷的方法描述了它的動、靜態特性，提出了改進的集總電荷的pin二極體高頻模型，同時提出了改進的曲線擬合模型參數抽取方法，減少了所需的參數測量實驗並提高了參數抽取的精度。 -
In the application of driving white led, an auto - adjustable charge pump which adjust work mode according to the forward voltage of load led and input voltage is presented. the conventional charge pump changes work mode at fixed input voltage value
在電荷泵驅動白光led的應用中，本論文研究設計了一種根據負載led正向導通壓降和輸入電壓來選擇電荷泵工作模式的電荷泵型led驅動器。 -
Applied forward voltage
正向外加電壓 -
Due to characteristics of white led such as large forward voltage and high temperature sensitivity, and necessity of uniform brightness requirement of the portable application, specially designed power management ic is needed
由於便攜式應用對白光led亮度均勻性的要求，以及白光led自身的正向導通電壓大、電學參數離散性大、容易受溫度影響等特點，需要設計專門的電源管理晶元來驅動白光led 。
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