major loop 中文意思是什麼
major loop
解釋
大迴路-
The feedback of the output voltage is the major control loop. to achieve better frequency response and disturbance rejection of the input voltage, a input voltage feed - forward system is introduced in control loop. the duty - cycle of pwm applied at the gate of power mosfet is modulated by both input and output voltage
該晶元採用的控制方式為電壓型pwm （脈沖寬度調制， pulsewidthmodulation ）控制方式，以輸出電壓反饋作為主要控制參量，同時為了提高晶元對輸入電壓擾動的響應速度，採用了輸入電壓前饋方法，將輸入電壓因素引入了反饋控制環中，通過對輸入輸出電壓的檢測，控制加在功率mos管柵極電壓上矩形脈沖的占空比，進而調節輸出電壓。 -
In the body of the dissertation, different performance indexes are defined and analyzed based on the analysis of different types of fwl errors in digital controller, and different fwl digital controller design and realization problems are considered and solved. the major contributions of this dissertation are as follows : considering the fwl errors of controller coefficients, define and analyze the closed - loop transfer function sensitivity measure with respect to the controller coefficients, obtain the optimal controller realizations via minimizing the transfer function sensitivity measure
本論文首先對數字系統，特別是數字控制器設計與實現中的有限字長問題和非脆弱控制器設計的背景、歷史發展情況等作了簡單介紹，然後通過分析數字控制器中不同來源的有限字長誤差，定義不同的性能指標，較系統地分析並討論不同的有限字長數字控制器設計和實現問題。 -
The realization of major loop will be given after ipm module is introduced. the absorption circuit of the module is selected according to the actual conditions
在主迴路部分中通過對igbt的介紹給出了實現方案，並根據實際情況選擇模塊的吸收電路。 -
The major work is as following : based on the analysis of signal receiving problems when navigation receiver is in high dynamic circumstance, some typical algorithms such as maximum likelihood estimator ( mle ), extended kalman filter ( ekf ), frequency lock loop ( fll ), digital phase lock loop ( pll ) and frequency extended kalman filter ( fekf ) are deduced
高動態下面臨著多普勒頻率、多普勒頻率變化率較大的問題，給載波跟蹤帶來了很大困難。本章分析了目前高動態接收機中普遍採用的幾種載波跟蹤演算法，對演算法的性能進行了比較。 -
A major advantage of our scheme is that our scheme can handle seal imprints under much fewer constrains. this shape of seals can be a square, an ellipse, a circle, or any close loop
其優點在於對印鑒的結束條件很少，印章的形狀可以是方形、圓形、橢圓形或其它形狀，且印鑒的邊界允許斷裂。
分享友人