low-converter 中文意思是什麼

low-converter 解釋
下變頻器
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • converter : n. 1. 使轉變[改變信仰]的人。2. 改裝者，改裝品。3. 【冶金】煉鋼爐，吹風轉爐；【電，無】換流器，變壓器；變頻器；【自動化】變換器；密碼翻譯[編制]機。
  1. Compared with primary second sampling a / d converter, it realizes digital feedback by digital circuit and does n ' t adopt high accuracy d / a converter with complex technology and high price. it has many excellent qualities, such as high - integration, high - accuracy, widely used, low - price. it can be widely used in test and measure system, scientific instrument, iatric instrument, automatic test system etc. so popularizing this new type a / d converter has very significant meaning

    與原有的兩次采樣a / d轉換器相比，用數字電路實現數字反饋可不用技術復雜、價格昂貴的高準確度d / a轉換器，具有集成度高、準確度高、適用性強、價格低等優點，可廣泛應用於測量測試系統、科學儀器、醫療儀器、稱重儀器、自動測試系統等。
  2. A 3rd generation converter samples the signal 44, 100 times per second - with a frequency of 44. 1 khz kilohertz. this time resolution exceedingly determines the sound, which we finally perceive : a low resolution sampling or sample rate results in a more muffled sound because quickly oscillating sound waves i. e. high tone are not acquired correctly

    讀取頻率，也就是聲音的采樣頻率，的高低直接影響到我們最後所聽到的聲音，如果采樣頻率不夠高，聽到的聲音會感覺有點糊糊的暗暗的，因為沒有辦法讀取到某些振蕩頻率較高的聲波，也就是高音的部分。
  3. Driven by the requirements of an analog - to - digital converter ( adc ) with excellent performances, adcs have been made a rapid progress towards high speed, high resolution and low power dissipation

    為了適應各個應用領域對模數（ a / d ）轉換器越來越高的要求， a / d轉換器朝著高解析度、高速和低功耗等方向快速發展。
  4. Low noise block down - converter ln

    低雜訊塊下變頻器
  5. The result of study shows the sr - qsw - buck converter adopted interleaving and magnetic integrated techniques achieves high efficiency, low volume, fast transient response, and satisfies severe performance requirements of vrm

    研究結果表明：採用磁集成技術的交錯並聯sr - qsw - buck拓撲具有效率高、體積小、瞬態響應速度快的特點，可以滿足vrm的嚴格性能指標要求。
  6. The application analysis on smelting medium carbon and low carbon ferromanganese with converter practice

    轉爐吹煉中低碳錳鐵的應用分析
  7. High - frequency link power converters are receiving increasing attention. when the input frequency of ac - ac converter is quite high, such as 20khz or above, in order to make sure the converter switching action is restricted to the zero crossing point of the link voltage, the switching cycle becomes discrete pulse spectrums, however, the conventional pwm converters are ruled out because they would fail either to the efficiency or the low - distortion criteria

    當交-交變頻器的輸入頻率非常高，通常為20khz時，為了在零電壓條件下實現逆變器開關管的通斷，變換器的開關時刻必須選擇在高頻交流電壓脈沖為零時，這意味著變換器開關時刻在時間軸上成為不連續的點，而常規的硬開關pwm變換器是將開關時刻選擇在任意時刻。
  8. Chaotic switching modulations introduce low - frequency harmonic spectrum of output voltage as random switching modulation. in some case, low - frequency noise ripple offset the effect chaotic switching modulations reduce the level of emi. it indicates that the ccfmfd integrates the advantages of spreading harmonic power at the multiples of the switching frequency and not introducing significant noise ripple at low - frequency range. among all chaotic switching modulations, the ccfmfd is considered as the best choice in applying to dc / dc converter

    與隨機調制模式相同，混沌開關調制模式也引入輸出低頻噪聲紋波，有些情況下低頻噪聲紋波可能抵消混沌開關調制降低emi水平的效果。分析表明： ccfmfd模式具有較好的降低emi水平和引入較小低頻紋波的優點，可以作為混沌調制模式較佳的選擇。
  9. Application of high - low - high frequency converter in the induced fan of boiler

    高低高變頻器在鍋爐引風機上的應用
  10. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  11. Pwm converter has low efficiency at light loads and high amplitude harmonic. on the other hand, the control circuit and filter for pfm are much complex

    Pwm調制模式的spic在輕載下效率較低，控制脈沖諧波峰值較大; pfm控制電路較為復雜，后續濾波器設計困難。
  12. The system is based on the inner pid regulate function of frequency converter to regulate the living water stress with low constant stress, and the stress signal is sensed by the stress translator as feedback signal and the construction is sent by the computer as the given signal. the water stress is regulated to high constant stress when the fire happens

    本論文基於變頻器內置pid調節系統，以管網的壓力變送器壓力信號作為反饋信號，由上位機發出的當前狀態作為給定輸出，調節生活供水壓力使其保持低恆壓狀態；當火災發生時，調節系統管網壓力為高恆壓狀態。
  13. In this paper, microwave t / r front - end for short distance wireless communication is realized in miniature based on low cost mcm - l technology. the main jobs are as follows : 1. the performances of i / q modulation and direct converter receiver are analyzed to set down the system scheme

    主要工作包括以下幾個方面: 1 .基於目前流行的數字中頻接收技術，分析了i / q調制和直接變頻接收機的性能，提出超外差變頻的總體系統方案。
  14. It was found that there are lower pressure drop and better distribution in the radically variable cell diameter converter and the inlet loss of catalytic converter may be neglected when the velocity in cell passage is low

    結果發現，三效催化器微元通道孔徑沿徑向的不同組合可以達到既不增加壓降、流速分佈又均勻的效果，而且在所計算的軸對稱三效催化器結構中，在通常的流量范圍內其進口損失可以忽略。
  15. This thesis also proves how to use d / a converter with low number of bits to realize high grade application and discusses the scenario in detail. here theoretically proves the possibility of this scenario

    本文還證明如何用低位數的d a實現高位數d a功能的問題，並詳細的討論了實現方案，從理論上證明了此方案的可行性。
  16. The conventional converter has two power transfer levels. the first one is to obtain high frequency, and the second one is to obtain low frequency ac voltage

    傳統的電路結構中一般使用兩次逆變器，一次是為了獲得高頻，以便利用高頻變壓器進行變壓和隔離，第二次是為了獲得工頻正弦交流電壓。
  17. Proper selection of control algorithms and capacitor voltages helps synthesize controllable and waveforms almost sinusoidal three - phases ac voltage with minimum low - order harmonics at both sides of the converter

    選擇適當的控制演算法和電容電壓，能在變換器的兩側合成低次諧波含量小且波形近似於正弦的可控輸入/輸出電壓。
  18. The multi - level ( ml ) converter has the advantages such as low voltage stress for power devices, smaller output filters and reduced harmonic content of the output voltage, it is very suitable for high voltage and high power conversion applications

    多電平變換器具有電壓應力低、輸出濾波器小及輸出電壓諧波含量小等優點，特別適合於高電壓大功率的應用場合，近年來正受到越來越多的關注。
  19. The converter had the virtues of high integration level, high efficiency, high reliability and low cost. it can be formed high efficiency power supply by using a few external components

    開關電源系統由於其具有高效率、高可靠性、體積小和抗干擾能力強等優點，使得開關電源變換器電路成為國內外廣泛研究的對象。
  20. Some of the important problems, such as low - power detecting and watch - dog circuit, daul - wire converter, communication between microcontroller and pc are described in detail

    針對其中幾個重要部分，如系統低電位檢測及看門狗電路、雙線制電流變送器的設計、單片機與上位pc機的通信等進行了較為詳細的論述。
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