digital comparator 中文意思是什麼

digital comparator 解釋
數位比較器
  • digital : adj. 1. 手指的；指狀的。2. 數字的，數據的。n. 1. （鋼琴等的）琴鍵。2. 手指。
  • comparator : n. 【機械工程】比測器，比較儀，比長儀；【化學】比色計；比…器；【無線電】比較器；比較電路。
  1. This converter includes not only analog parts such as the bandgap voltage reference, voltage pump, sample / hold unit, one bit comparator of high precision, multiply - by - two and difference unit, but also digital parts such as register and multiplexer. so the design of this type of converter is mixed signal design

    模數轉換器的內部電路包括基準源、降壓模塊、抽樣保持電路單元、高精度的1bit比較器、倍乘作差單元等模擬電路模塊，以及寄存器組、選擇器等數字電路模塊，屬于數模混合電路。
  2. The chip can be widely used in mp3 player, pda, digital camera, cells phone and portable products etc. this thesis first introduces the basic theory of switching power supply. the operating theory of this circuit has been demonstrated. the operating principle and simulation analysis about band gap reference, self - biased current source, one shot circuit, hysteresis comparator, and current - limit circuit have been particularly expounded in this thesis

    本文首先闡述了開關電源的工作原理，詳細介紹了本電路的整體工作原理，最後重點介紹了自偏置電流源電路、基準源電路、單穩態觸發器電路、峰值電流限制及低電池電壓遲滯比較器的工作原理，並利用eda工具larker ? ams 、 hspice對電路進行了完整的設計和模擬模擬，給出了合理的電路數據，各子模塊電路的電特性參數均達到或優于設計所需指標。
  3. Move with the x axis micrometric movement the sharp shadow, till the digital comparator red light is on the zero right position

    微調移動x軸接近「十」字比較尺，直到數字比較器的指示燈在零點右邊變亮。
  4. You have to do the measurings only when both the digital comparator and the axis in measure focus bar are perfectly steady and exactly in the same points

    你不得不做測量，當數字比較器和軸的聚焦條在同一點是確定的、穩定的。
  5. In this position do sharp microrotations clockwise and counterclockwise. the focus bar has always to remain at most, while the digital comparator red reference does very small swings

    在這個位置對主軸做一下順時針和逆時針移動。聚焦條總是存在，當數字比較器的顯示紅色，存在一些小的震動時。
  6. With the focus bar at most, go on the most left point of the digital comparator and now stop the spindle rotation ; the focus bar has to be completely lightened and has not to switch on or off segments

    當聚焦條出現了絕大部分時，繼續向左移動數字比較器顯示值停止，停止主軸的旋轉；聚焦條完全的點亮並顯示在屏幕，並且中間沒有分割點。
  7. Advanced fpga technology is introduced to improve the integration of digital circuits, and all digital circuits in the original module are integrated in the fpga chips, which could not only reduce the cost, but also improve the reliability and measurement precision of the circuits. high speed digital signal processor ( dsp ) is selected as the coprocessor instead of scm ; it can receive all kinds of commands sent from vxi, analyze and execute the commands, harmonize each section of the module and process the data. higher - conversion - speed comparator chip is adopted to convert the input signals being measured into square waveform signals which could be identified by fpga chip ; it can expand the measurement range of frequency dramatically

    本文在原有vxi總線四通道計數器模塊的設計基礎上，通過對原模塊缺陷的分析，採用一些新的技術和新的電子器件來重新設計該計數器模塊:採用最新的fpga技術來提高數字電路的集成度，將原模塊中的所有數字電路全部集成在fpga晶元中，這樣不僅能節約成本，還能提高電路的可靠性和測量精度;採用高速的數字信號處理器（ dsp ）取代原有的單片機作為協處理器，來接收vxi發來的各種命令，分析命令、執行命令、協調模塊各部分的工作以及對數據的處理;採用轉換速率更高的比較器晶元將輸入的被測信號轉換為fpga晶元能夠識別的方波信號，能極大提高測量頻率的范圍;採用d / a轉換晶元和隔離運算放大器得到隔離通道所需的比較電平，該比較電平值能夠根據實際需求進行設置，能增強模塊的使用靈活性。
  8. Results from hspice simulation and foundation show that the band - gap voltage reference of ic is 3. 126v, has a psrr of 65db, an accuracy of 23ppm / in [ 0, 70 ], and the band - pass filter has an gain of 73db, whose band - pass frequency is 0. 1hz ~ 10hz. comparator ’ s window is 700mv. time sequence and functions of digital circuits are normal

    Hspice和foundation軟體模擬的結果顯示，帶隙基準電壓源為3 . 126v ，電源電壓抑制比為65db ，溫度系數為23ppm / ;帶通濾波放大部分增益為73db ，帶通頻率為0 . 1hz ~ 10hz ;雙限電壓比較器窗口為700mv ，功能良好，數字電路時序正確，功能正常。
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