dc amplifier 中文意思是什麼

dc amplifier 解釋
直僚大器
  • dc : ＝1 direct current 直流電：a DC generator 直流發電機。2 District of Columbia 哥倫比亞特區〈美國首...
  • amplifier : n. 1. 【電學】擴大器；擴音器。2. 放大鏡；放大器。
  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. 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。
  3. 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。
  4. The use of balanced transmission lines can help but if the signal bandwidth extends to dc there will be a need for a very high performance instrumentation amplifier at the receiving end to restore a ground referenced signal

    採用平衡傳輸線有助於改善信號完整性，但是對于帶寬延伸到dc的信號，接收端要靠超高性能的儀表放大器來還原參考電平。
  5. This digital inverter amplifier ' s dc power is supplied by an ac / dc with pfc circuit controlled by 3854

    前級直流電壓由3854晶元控制pfc后的ac dc提供。
  6. In the passive circuit part, according to the theories of microstrip line and coupled microstripwe, the characteristic of microstrip and coupled microstrip was analyzed, the x band filter and dc block circuit of amplifier have been designed by hp - ads software

    為毫米波設備提供本振源。在無源電路部分，我們首先對微帶線、耦合線等基本理論作了簡單的介紹。
  7. The power amplifier is energy switching equipment, which can transform the energy from the dc to ac

    摘要功率放大器是一種把直流能量輪換為交流能量的能量交換裝置。
  8. In high precision dc servo system, the pwm power amplifier based on power electronic devices is mainly used

    在高精度伺服控制系統中，大多採用基於電力電子器件的脈寬調制型功率放大器，簡稱pwm功率放大器。
  9. Established in 1980, we manufacturer electronic products such as universal remote control, 100baset lan filter, dc dc converter. we spcially professional in ic design for universal remote control for tv vcr cd ld vcd dvd amplifier satellite receiver cable tv converter and air - conditioner

    我們特別專業于萬能遙控器的ic設計，供各種品牌的電視機錄放影機cd ld vcd dvd擴大器衛星接收機選臺器及空調機使用。
  10. Because of signal proportional valves with the ratio between the need to install dc amplifier, a corresponding increase in investment costs

    由於在輸入信號與比例閥之間需設置直流比例放大器，相應增加了投資費用。
  11. Chapter two focuses on the architecture and circuit design of asna2001. three parts are included : power supplier, ad dc amplifier and stepping - motor driver. circuit diagrams, design thoughtway and some calculation are provided

    第二章說明了asna2001標量網路分析儀的工作原理與電路設計，這主要包括了三個方面：電源電路、 ad da放大電路和步進電機驅動電路。
  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. Usually the low power operational amplifier is designed with rail to rail output stage, whose signal dynamirange is small, its output driving force is not strong, here it is designed with voltage displacement stage, and the strong driving force and the low power consumption in this circuit are achieved. with 5v single power, this amplifier consumes only several a, 100khz unity - gain frequency, achieves 80db dc open gain and 55 phase margin for a 100pf load capacitance and a 1m load resistance and other advantages

    通常設計的低功耗軌對軌輸出運算放大器中，由於信號的動態范圍比較小，它的輸出驅動能力不強，這里設計的是採用電平位移電路同時實現了電路的強驅動能力與低功耗，它具有在單電源電壓5v的條件下，靜態工作電流只有幾微安，單位增益帶寬達100k ，開環增益能達80db以上，相位裕度也能達55度，輸出源沉電流達500微安以上等優點。
  14. 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。
  15. The dc characterization and ft characterization are modeled. 6. cmos distributed amplifier is researched for the first time in the dome

    6nmnmos晶體管做了直流特性和ft特性的模擬研究。
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