load circuit efficiency 中文意思是什麼

load circuit efficiency 解釋
負載電路效率
  • load : n 1 裝載，擔子；負擔；工作（負荷）量。2 （車船等的）裝載量；一馱，一車，一飛機。3 【電、機】（機...
  • circuit : n 1 （某一范圍的）周邊一圈；巡迴，周遊；巡迴路線[區域]；迂路。2 巡迴審判（區）；巡迴律師會。3 【...
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  1. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  2. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
  3. This paper studies the variable - voltage energy saving theory and its implementation for asynchronous motor with light load, compares several kinds of scheme of improving efficiency in detail and confirms the variable - voltage energy saving method, that is adjusting the input voltage by detecting the iron loss and copper loss of motor directly. in addition, the directness *, simpleness and availability of the method are verified by the emulational experimental results with simulink of the matlab. the circuit of the general inverter based on the tms320f240 dsp was used in this paper, and the practicable program was compiled

    本文分析了異步電動機輕載時降壓節能運行的原理，對幾種提高效率的方案進行了比較，確定了通過直接檢測電動機鐵損和銅損來實時調節輸入電壓以達到高效節能目的的控制方法，應用matlab軟體對系統進行模擬，在基於tms320f240dsp的通用型變頻器上編制了實用化的程序，形成了完整的樣機，對其進行了測試，並給出了試驗結果。
  4. The circuit was simulated via hspice based on csmc 0. 5um process whose results indicates the all modules have meet the requirements and the efficiency can go up to 95 % under pwm mode and stay above 90 % under pfm mode when the load resistance

    晶元內設過熱保護和欠壓保護，以實現電路的可靠性操作。最後設計電路基於0 . 5 mcomsn阱工藝，用hspice模擬，每個模塊性能都滿足電路要求。
  5. The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over - load and short - circuit ability, and strong function with different nature load and three - phase unbalanced load

    試驗結果表明，該變流器具有體積重量小、變換效率高、靜態精度高、動態響應快、輸入電壓變化范圍寬、輸出波形質量高、過載與短路能力強、帶不同性質負載和帶三相不平衡負載的能力強等優良的綜合性能。
  6. Full bridge phase - shifted zero - voltage - switched converter ( fbps - zvs converter ) is a successful implementation for soft - switching and is easy for usage in dc / dc converter. the core technique to reach digitalization is dsp technique. in order to reach both high frequency and digitalization of converter, a fbps - zvs converter based on dsp control is proposed in this paper the converter worked on the high frequency of 150k. periphery hardware circuit is simple and its bulk is small. the converter realizes soft - switching over half load and get a high efficiency. it achieves the aim of digital control and error protect

    實現數字化的核心是dsp技術。本文立足於將開關電源的高頻化與數字化相結合，具體研究內容為一種基於dsp控制的移相全橋軟開關zvs變換器，該變換器工作于較高的開關頻率（ 150k ） ，外圍硬體電路結構簡單、器件少、體積小；在半載以上實現了開關管的zvs開關，取得了較高的變換效率；實現數字化控制與故障保護，變換器取得了較好的性能效果。
  7. The switch power will operate at ccm condition when circuit is set to pwm mode. when pfm mode is selected for the operation mode, the switch power will still operate at pwm condition with the high load, the system will cancel the pwm mode and enter the pfm mode only when the load is drop to a certain threshold to boost the operation efficiency at light load, make the ic has high efficiency within wide load range

    選擇pwm模式，開關電源將工作在ccm模式下;選擇pfm模式，在負載較高的情況下，開關電源仍然工作于pwm模式，只有當負載降低到一定程度時，開關電源才退出pwm模式，而按照pfm工作模式操作，跨過一部分時鐘周期，降低頻率相關功耗，以提高輕負載時低效率的問題，使得開關電源在很寬的負載范圍內都具有高效率。
  8. Further, the characteristics such as the response speed, the efficiency and the relationship between load and the modulation factor are counted and analyzed. during the stage of circuit design, the whole chip and the sub - block circuits are well - designed, respectively

    基於此模型，計算並分析了離散脈沖頻率調制下升壓型dc / dc變換器的響應速度、效率和負載與調制度的關系等特性。
  9. At present, the key technology of edm power supply is how to design a power supply with simple circuit, finish maching, high heat availability, high efficiency and wasting less energy, so a current source lcc resonant converter is selected for the edm power supply in this paper, the prototype of current source and load adaptability are used to get the performance of simple circuit, finish maching, high efficiency and wasting less energy. at first, the status quo of edm power supply is introduced in this paper, the design of an edm power supply is comfirmed after the characteristics of current edm power sypply has been summarized. secondly, the principles of the lcc resonant converter are analyzed in detail

    本文首先介紹了edm電源的研究現狀，在總結當前edm電源特點的基礎上，確定了採用電流型lcc串並聯諧振變換器作為主電路拓撲的設計方案，其次，對拓撲進行了詳細的原理分析，由於電流型lcc串並聯諧振變換器眾多參數是相互影響的，在對edm電源系統進行分析與模擬基礎上，對參數設計進行了優化設計，再次，對拓撲及edm電源進行了建模與模擬分析，確保了該edm電源設計的可行性，最後研製了輸出峰值電流為20a的電流型edm電源樣機，並通過對原理樣機的實驗，驗證了參數優化設計的正確性及電流型lcc串並聯諧振變換器的edm電源的優越性。
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