circuit-switching function 中文意思是什麼
circuit-switching function
解釋
電路交換功能-
The thesis discussed a parameter extraction program for the mosfet level1 model. in the analysis and design of circuit, at first, the thesis described the system function of the new dc - dc switching converter. then several sub - circuits of converter ic such as oscillator, over - temperature shutdown circuit, auto - restart counter circuit and control circuit were completely discussed
在電路設計中，本文首先分析了開關電源電路的基本拓撲結構和psm調制模式，接著對開關電源變換器進行了系統的原理分析並設計了總體框圖，然後詳細設計了振蕩器電路，熱保護電路，自動重啟計數器電路和主控門邏輯等子電路並進行了功能模擬。 -
There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。 -
Low - voltage switchgear and controlgear. part 5 - 5 : control circuit devices and switching elements. electrical emergency stop device with mechanical latching function
低壓開關設備和控制裝置.第5 - 5部分:控制電路器件和開關元件.有機械鎖定功能的電動緊急停止裝置 -
Consequently, an integrate switch mode power supply with high efficiency and good reliability can be realized by the controller with very few external parts. the fundamental principle of monolithic voltage - mode switching regulator is firstly introduced in this thesis, which is followed by a comparison between voltage - mode and current - mode converters where the pros and cons of both converters are discussed in detail ; next, the global system architecture is proposed upon the design requirements and sub - block circuits are also introduced that focuses on several essential sub - blocks such as amp, wave, pwm control, psc, osc and vref. finally, all sub - circuits and the whole chip circuit are simulated by hspice whose results indicate that the circuit function and performance have perfectly satisfied the design requirements
在論文中，首先闡述了電壓控制模式pwm開關電源的基本原理，對比了電流控制模式和電壓控制模式，分析了各自的優缺點;隨后根據設計要求進行了電路的總體設計，完成了各個子電路的原理分析，電路設計和模擬驗證，重點闡述了誤差放大電路、三角波發生電路、 pwm控制電路、節能控制電路、振蕩電路和基準源電路的分析、設計和驗證過程;最後，利用eda軟體hspice對整體電路進行了功能模擬驗證，模擬結果表明，本文完成了設計工作，達到設計要求。 -
Specification for low - voltage switchgear and controlgear - control circuit devices and switching elements - electrical emergency stop devices with mechanical latching function
低壓開關設備和控制設備規范.控制線路設備和開關元件.具有機械鎖定功能的應急停電裝置 -
Low - voltage switchgear and controlgear - part 5 - 5 : control circuit devices and switching elements - electrical emergency stop device with mechanical latching function
低壓開關設備和控制設備.第5 - 5部分:控制電路器件和切換元件.具有機械鎖扣功能的電氣緊急故障中斷器件 -
Amendment 1 - low - voltage switchgear and controlgear - part 5 - 5 : control circuit devices and switching elements - electrical emergency stop device with mechanical latching function
修改件1 .低壓開關設備和控制設備.第5 - 5部分:控制電路器件和切換元件.具有機械鎖扣功能的電氣緊急故障中斷器件
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