直流電放大器 的英文怎麼說

中文拼音 [zhíliúdiànfàngdàqì]
直流電放大器 英文
amplifier direct-current
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 放 : releaseset freelet go
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  • 放大器 : amplifier; pantograph; lawnmower; enlarger; magnifier
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  1. The design of voltage amplifier for dc ac standard supply

    交直流標準源電壓放大器的研製
  2. All dms force transducers are connectable, that can be runned by dc voltage

    此款放大器能和所有直流電源驅動的dms力傳感器連接。
  3. Second, the results of theory analysis and simulation research show that the output of one cycle controlled bridge switching power amplifier have dc offset because of the nonideal characteristic of reset signal. the magnitude of output dc offset voltage is proportional to width of reset pulse. a voltage compensation technique is used to solve this question, and the computation formula of compensation voltage is gived. the circuit compensated and not are researched through simulation and experiment, which results show that compensated circuit solve the output dc offset effectively

    其次，理論分析和模擬研究結果表明，由於復位脈沖的非理想特性，單周控制的全橋開關功率放大器輸出端存在直流偏置問題，其大小與復位脈沖的寬度成正比。針對輸出直流偏置問題，提出了電壓補償的改進方案，給出了補償電壓的具體計算公式。對補償前和補償后的方案進行了對比模擬研究和實驗研究。
  4. At last, control circuit of one cycle controlled bridge switching power amplifier is improved with the basic idea of one cycle control. the simulation results show that the amplifier of improved control circuit not only solve the question of output dc offset, but also keep the voltage gain lowered by voltage compensation technique

    最後，根據單周控制的基本思路，改進了單周控制的全橋開關功率放大器的控制電路。模擬結果表明，改進控制電路后的系統不但解決了輸出直流偏置問題，而且解決了電壓補償方法所造成的放大器增益下降問題。
  5. According to negative temperature coefficient of vbe and positive temperature coefficient of vt, a framework of band - gap voltage reference is investigated. the reference offer a source of pir, distributed three voltage, one as upper - threshold voltage of dual - threshold comparator, the other as lower - threshold voltage of comparator, the other as direct current voltage for second band - pass filter amplifier

    同時利用pnp晶體管發射結電壓的負溫度特性和發射結差值電壓的正溫度特性設計了一個帶隙基準電壓源。此帶隙基準電壓源本身作為熱釋電紅外傳感器的電源電壓，同時分壓提供雙限電壓比較器的上限電平和下限電平以及第二級帶通濾波放大器的直流電平。
  6. Our item choiced msp430f149, a sort of singlechip as controller, designed our hardware electrocircuit to get the pulse wave singnal, and used msp430f149 to continuously search and calculate the peak - peak value of the pulse wave, and compute oxygen saturaction. in our study, in order to hurdle the dirft of baseline caused by the physiological difference of human bodies. we designed one circuit which can automatically regulate of the baseline of signal

    本文以msp430f149晶元為控制器，設計硬體電路提取脈搏波信號，連續檢測脈搏波峰?峰值，計算氧飽合度。本課題採用了基線自動調節電路，以克服不同人體生理差異引起的基線漂移；設計了直流截取電路和可控積分放大電路，以滿足臨床連續監測的特殊需要，解決信號飽和問題。
  7. The current in the dac ’ s output can drive the load, and the structure can save a buffer consisted of operational amplifier, so the structure can achieve high speed with no close - loop and feedback in this circuit

    該10位分段式電流舵型數模轉換器的輸出端可直接用電流輸出來驅動負載阻抗，省去運算放大器構成的輸出緩沖，整個電路中沒有形成閉環和反饋，因此這種電路結構可以達到很高的速度。
  8. The amplitude discrimination circuit, the filter circuit and the amplifying circuit are designed to transform ac analog signal that the eddy current sensor output to dc analog signal, thus, the dc analog signal can be received by ad converter

    傳感器輸出的測量信號是中頻的交流模擬信號，在下位機系統設計了鑒幅、濾波、放大電路將測量信號轉化為模數轉換器可以接受的直流信號。
  9. Control circuit devices and switching elements proximity sensors, d. c. interface for proximity sensors and switching amplifiers

    鄰近傳感器和開關放大器介面用直流控制電路裝置和開關元件鄰近直流傳感器
  10. Then with regard to emc, reliability and control flexibility of pwm power amplifier, the following contents are studied. to improve the control flexibility of pwm power amplifier and realize all kinds of pwm control mode, a pwm controller is designed based on cpld by using vhdl, which has the features of low cost, high reliability and integration

    然後在圍繞pwm功率放大器的電磁兼容性、可靠性及靈活控制等方面進行了以下工作：為增加pwm功率放大器控制的靈活性，能夠方便實現各種直流pwm控制模式，利用可編程邏輯器件的可重復編程和在線下載特性、用vhdl語言設計了基於可編程邏輯器件的pwm控制器。
  11. First and second band - gap filters amplify small signals and shift direct current voltage, which filter interference and noise by frequency. then, comparator restrains noise and interference through 700mv voltage window

    兩級帶通濾波放大器對熱釋電紅外傳感器採集人體的微弱小信號進行交流放大和直流電平的轉換，並根據頻率對噪聲和干擾進行過濾。
  12. Through the design the dc feed network, input matching network for the ne900175 gaas fet and analysis the stabilization, power gain, bandwidth of the power amplifier we get the power amplifier is stability, the power gain is 11. 967db and the bandwidth is 300mhz. microstrip antenna has a narrow bandwidth, in this design antenna ' s bandwidth is 100mhz. antenna is the not only the load of the power amplifier, but also as the filter connecting to the output of the power amplifier

    E類功放的pae相對a類、 b類、 ab類的功率放大器類型而言比較高，在50 ? 70 。分析了e類功放的工作過程后，以ne900175的gaas場效應管作為e類功放電路的開關，進行了外圍電路的設計，包括直流偏置電路、輸入匹配網路的設計，功放的穩定性、帶寬、增益的分析。該功放增益最大達到11 . 4db ，帶寬為320mhz 。
  13. Namur low - voltage switchgear and controlgear - part 5 - 6 : control circuit devices and switching elements - dc interface for proximity sensors and switching amplifiers

    低壓開關設備和控制設備.第5 - 6部分:控制電路設備和開關元件.近接傳感器和開關放大器用直流介面
  14. Namur specification for low - voltage switchgear and controlgear - control circuit devices and switching elements - dc interface for proximity sensors and switching amplifiers - dc interface for proximity sensors and switching amplifiers

    低壓開關設備和控制設備規范.控制電路器件和開關元件.近接傳感器和開關放大器用直流介面
  15. The complementary high impedance iutputs are suitable for driving transmission lines directly or connecting a omp to bring low impedance outputs

    互補的高阻抗電流輸出適合直接驅動傳輸線或帶一個外部運算放大器以產生低阻抗輸出電壓。
  16. We utilize the mutual inductor to take a sample to the three - phase current, and sample which is enlarged, rectified, filtered, is send into pic single chip microcomputer to deal with. the size of three - phase current on the line is calculated out, which offer the accurate value for the change of controls the equipment state

    利用互感器對三相電流取樣，然後通過放大、整流、濾波，實現交直流轉換，送入pic單片機處理，計算出溫室輸電線上三相電流大小，為控制設備狀態的改變提供精確數值依據。
  17. Abstract : the multifunctional inverter power sourcethe handy inverter welding, plating & charging manchine, developed with advanced inverter and micro - electronics control techniques, adopts “ half - bridge power expansion supply midpoint voltage autocontrol setting ”, and technically and effectively having solved inverter subvision of inverter power expansion circuit for leaning magnetism, reliability of high - power inverter setting, achives combination of constantcurrent and constantvoltage export, and realizes low - voltage dc and high - voltage ac double power supply

    文摘:運用先進的高頻逆變技術和微電子控制技術設計研製的逆變式多功能電源便攜式逆變焊鍍充電多用機，採用「半橋式功放級供電中點電壓自動控制調節裝置」 ，在技術上解決了逆變功放電路因偏磁而造成的逆變顛覆，有效地解決了大功率逆變器的可靠性問題；進行多種外特性的綜合設定，實現了恆流與恆壓輸出的合一；與傳統焊機相比，實現了開環和閉環狀態下都互不影響的低壓直流電瓶和高壓交流雙供電
  18. The emc of dc pwm power amplifier is analyzed and several measures to restrain the disturbances of pwm power amplifier are put forward. based on the pwm power amplifier in existence, the rcd snubber circuit experiment is carried out and the result shows that the rcd snubber circuit can restrain the voltage surge and the disturbances of dv / dt, di / dt

    對直流pwm功率放大器的電磁兼容性進行了分析，提出了抑制pwm功率放大器干擾的幾種措施；在現有的pwm功率放大器上做了rcd吸收電路實驗，實驗結果表明， rcd吸收電路能有效抑制電機兩端電壓浪涌和dv dt ， di dt引起的電磁干擾。
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