scaling circuit 中文意思是什麼
scaling circuit
解釋
【電學】定標電路。-
We analyzed the dependence of equivalent circuit parameters of mesfet switch on material and device structure. for modeling, we designed and fabricated six set of mesfet switches with different gate width, then measured their performance and extracted switch model parameters. mesfet switch database corresponding to the mmic product line is then established, and using the dependence of switch model parameters on gate peripheral we can attain the mesfet switch performance with any gate width through parameters scaling
移相器電路採用gaasmesfet開關作為控制元件，研究了mesfet開關等效電路參數與材料和器件結構參數的關系，設計製作了不同柵寬的六組mesfet開關，並進行參數測試和模型參數提取，建立了相應于mmic工藝線的mesfet開關模型庫；根據開關模型參數隨柵寬的變化規律，可以實現任意柵寬mesfet開關的參數定標工作。 -
Secondly, the main stuctures of the software and hardware parts of the control system are introduced. principles and realization of the main functional blocks of these two parts are illuminated. on the hardware of the system, parts of control circuit and the design and debugging of peripheral circuits are discussed thoroughly. based on the hardware circuit, the software is programmed with assembly language. dual close loop vector control weth feedback of speed and current are realized. the flow charts of main programme and pwm interrupt service routines are given. the important control strategies of vector control pmsm such as current sensint and scaling, speed sensing and scaling, bector co - ordinate transformation, generation of sine and cosine, pi regulators, svpwm vector modulation and so on are all accomplished in the pwm interrupt sevice routines. in order to unite all the variables in the programme, scaling is used
硬體方面主要論述了控制電路各部分及外圍輔助電路的設計和調試。在硬體的基礎上，軟體採用匯編語言編程，實現了轉速和電流雙閉環矢量控制。給出了系統主程序和pwm下溢中斷處理程序流程圖， pmsm矢量控制的主要控制策略如電流采樣與定標、速度采樣與定標、矢量坐標變換、 sin和cos值生成、 pi調節、 svpwm波形生成等都是在pwm下溢中斷服務子程序中完成的。 -
As manufacture technology scaling down, power dissipation has become a critical issue of vlsi circuit design, in which dynamic power dissipation estimation and optimization are traditionally included
隨著製造工藝的發展，功耗成為集成電路設計中的一個十分關鍵的問題，傳統的低功耗設計主要圍繞動態功耗的估計和優化展開。
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