constant current source 中文意思是什麼

constant current source 解釋
恆鏈
  • constant : adj 1 恆定不變的，固定的，穩定的，恆久的；繼續不斷的。2 不屈不撓的，堅韌的。3 忠實的，有節操的。n...
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  1. There is a nasty disadvantage to any constant current source load

    所有的恆流源負載都有一個很討厭的缺點。
  2. Since a pentode presents a fairly constant current sink, trying to power it from a constant current source will be fairly unsuccessful, sort of like the unstoppable object hitting the immovable object

    因為五級管本身就表現得類似恆流陷阱（意思是消耗恆定的電流） ，試圖用恆流源驅動五級管只會是個失敗，就好像試圖用一個停不下來的物體去打擊一個不可移動的物體。
  3. The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization

    其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。
  4. Five different structures are described : standard transformer coupling, parafeed, resistively loaded stage capacitively coupled to the output transformer, tube ( valve ) based constant current source load capacitively coupled to the output transformer, and solid state ( mos fet ) constant current source load capacitively coupled to the output transformer

    我們將討論五種不同的方式：標準變壓器耦合；旁饋耦合；電阻性負載電容性耦合至輸出變壓器；膽恆流源負載電容性耦合至輸出變壓器；以及晶體管恆流源負載電容性耦合至輸出變壓器。
  5. The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )

    硬體電路設計包括：工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路（恆流源電路、時基信號處理電路、被測信號處理電路）設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括：主程序流程圖、系統開機自檢程序流程圖、手動靜態測試程序流程圖、半自動靜態測試程序流程圖、自動靜態測試程序流程圖、動態測試程序流程圖、暫態測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦波信號和階躍信號，並對三種不同測試狀態（靜態、動態、暫態）下大量程脈沖變換電路輸出脈沖信號的頻率進行精確測量。
  6. The current source plays an important part in the performance of the oscillator. with the help of the voltage reference, we design a constant current source which does not vary with the temperature 、 the voltage source and the process

    由於充放電電流對弛張振蕩器的性能有很大的影響，因此本文把基準電壓源結合在一起設計出一個受溫度、電源電壓、工藝條件影響很小的基準電流參考源。
  7. Study of constant - current source for measuring dcr of large electric power equipment

    電力設備直流電阻測量用恆流源研究
  8. In the schematic above, i used the transistor constant current source example

    在下列電路圖中，我使用了一個晶體管恆流源負載的例子。
  9. It avoids the disturbance of the constant current source by improved constant current source method, with high precision and nice resolving power. the circuit has wide application with simple structure, low cost, low power dissipation and small. it can be used in the precise temperature measurement and control systems, such as laser diode

    用改進的恆流源法測量熱敏電阻的阻值，有效地克服了恆流源的干擾，測量精度高，測量解析度可達0 . 01 ，測溫準確度可達0 . 5 ;並且該電路結構簡單，成本低、功耗小、體積小、具有很高的實用價值，可用於需要精密測溫與控溫系統中，如激光二極體的溫度控制中。
  10. The hardware system includes power supply circuit, clock reset circuit, jtag model building circuit, decoding circuit, memory interface circuit, man - machine interface circuit and numeric control constant - current source interface circuit

    硬體系統主要包括電源電路、時鐘復位電路、 jtag模擬介面電路，譯碼電路、存儲器介面電路、人機介面電路、 adc轉換電路和數控恆流源介面等。
  11. Plane diffraction grating, logarithmic amplifier and stable constant - current source are used in the system, thus the performance of the instrument is enhanced significantly and the cost is reduced

    系統採用了平面衍射光柵、專用陣列探測器、對數放大器以及高穩定恆流源，有效地提高了儀器的整體性能，同時降低了生化分析儀的成本。
  12. On structure design aspect, a closed magnetic route around the gmm is formed, so magnetic symmetry and intension of gmm are improving ; on analysis of electricmagetic characteristics aspect, ansys software is applied to analyze the gma to optimize its structure ; on ampliflcatory power system aspect, based on the characteristic of driving power of gma and the principle of constant current source, a power amplifier using power mosfet is designed ; on testing equipments aspect, measure bracket is designed including transom, stand beam, screw, pedestal ; on cooling system aspect, a constant temperature cooling system is designed theorily

    本文根據稀土超磁致伸縮材料的特點及其在工業元件、系統中的應用要求，在以往微位移致動器的基礎上，克服他們的不足，經過各方面的完善，設計出一種精確的、適合於主動控制的稀土超磁致伸縮位移致動器，主要在稀土超磁致伸縮致動器結構設計、電磁特性分析、功放系統以及最後的實驗測試系統方面進行了設計，同時對溫度冷卻系統也做了一些理論設計。
  13. For the driving form, this system designs high - stability bipolar constant current source which can continuously be adjusted by voltage. this constant current source can offer drive magnetic field for the actuator

    對于驅動形式，本文採用了恆流源驅動，設計了高穩定度的壓控連續可調型雙向恆流源作為驅動器的輸入來提供驅動磁場。
  14. Based on the characteristics of the giant magnetostrictive material, this article designs giant magnetostrictive micro - displacement actuator, and primary research contents are as follows : establishing drive magnetic field structure, designing closed loop control system, constant current source, temperature control system, magnetic field perceptual system and doing experiment testing

    本文根據其工作特性設計了一種基於超磁致伸縮材料的微位移驅動器，主要研究內容包括:建立閉環控制系統、設計驅動磁場結構、恆流源驅動電路、溫控系統和磁場感知系統以及系統性能的實驗測試。
  15. Abstract : a design method of using gal to make a constant current source is introduced ， proving a new method of current stabilization by means of driving regulated transformer by a controlling device. experimental results are given to demonstrate effectiveness of the method

    文摘:主要介紹以可編程門陣列器件構成恆流源核心控制電路的設計思路，通過機電自控裝置驅動可調變壓器實現新的穩流方法，實驗證明這一方法是可行的。
  16. Otherwise, an active integral chaotic measuring circuit is suggested based on the analysis of the present nonlinear circuits in this paper, which gets rid of nonlinear distortion of map function in constant - voltage mode and defect of constant - current source operating on - off state. using a general operational amplifier, high precision can also be obtained. a nth - order chaotic measuring system can be composed of its interconnection

    另外，本文在分析原有非線性電路的基礎上提出一種有源積分式混沌測量電路，它克服了恆壓式測量電路映射函數存在非線性失真、恆流式測量電路不宜工作在開關狀態的不足，利用普通的運放也獲得較好的測量精度。
  17. Constant current source

    恆流電源
  18. Co - operated with the controllable current limiter or constant current source, not only can it be made high quality and low price independent charger, but also in - machine charger

    與可控限流源或恆流源配合，不僅可以製成質優價廉的獨立充電器，還能夠作為機內充電器。
  19. The paper describes a cw, non - cooling, digital all - solid - stated ld pumped nd : yvo4 driver which adopts microprocessor control, stability power of laser feedback and laser output power about 10mw. the system is composed of constant current source, soft diagram, protection, pulse schematic and laser power feedback loop. by combining appropriate hardware and software, we achieved, in our driver, a variety of protection features including the ability to suppress transients and reduce noise, relay soft and hardware over - current protection and overvoltage shut - off, we have obtained a continuously adjustable laser power output with high accuracy and stability

    介紹一種採用單片機控制的連續運轉無製冷、數字式光反饋穩功率全固態激光器驅動電源，其輸出激光功率在10mw左右，系統包括恆流源、保護電路、脈沖驅動控制、光反饋穩功率控制等部分，結合硬體及軟體實現了激光二極體的可靠保護以及光功率穩定、準確輸出及在穩光輸出情況下，實現激光器的內外調制，並取得了一些有價值的研究成果。
  20. The mixed control chip sg3525a combined with hardware pi controller generates the high - frequency pwm pulse for the first inverter. the digital control block tms320lf2407a mainly provides current preset for constant - current source through the outer filter, pwm pulse for the second inverter and drive signal for the high - frequency pulse power supply

    其中變極性電源的一次逆變pwm信號由pwm發生晶元sg3525a ，配以外部硬體電路pi調節器產生;一次逆變閉環控制迴路的電流給定（配以外部濾波） 、二次逆變pwm驅動以及高頻脈沖電源的控制則由tms320lf2407a數字控制器實現。
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