dc bridge 中文意思是什麼
dc bridge
解釋
直流電橋-
A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later
每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲，由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成，前級採用電壓型pwm前饋控制技術，后級採用三態dpm電流滯環控制技術。 -
This paper selects dc double - arm bridge, uses the four - port connection to remove the contact and connection resistances and reduce the electromagnetism interfere. grounding grid conductors fault levels are established during a lot of emulational computations, simulative experiments
使用直流雙臂電橋，採用四端鈕連接法，可大大降低現場中電磁干擾及引線電阻和接觸電阻的誤差影響。 -
A novel phase - shifted zero - voltage and zero - current switching pwm dc / dc full - bridge converter is presented in this thesis, which is based on the groundwork of summarization of the development of power electronics in recent years and lucubration in theoretical basis of modern high frequency soft switching power convert technique and analysis of operation principle, characteristic of the circuit and inherent drawbacks of the traditional phase - shifted zero - voltage switching pwm dc / dc full - bridge converter
本文在對近年來電力電子學科的發展高度綜述和對現代高頻軟開關功率變換技術理論基礎深入研究的基礎上，對傳統的移相控制zvspwmdc dc全橋變換器的工作原理、電路特性、存在的缺點進行了分析，在此基礎上提出了一種改進型的移相控制zvzcspwmdc dc全橋變換器。 -
Arthur m. sackler gallery, smithsonian institution, washington, dc, usa bridge : the " t " shaped beams and yixing style teapot
美國首都史密森尼博物館沙可樂美術館大橋t形樑柱一組 -
The thesis includes two parties : research on 2kw multi - function ac excitation power and study on high voltage high power ( hh ) dc / dc full - bridge converter
論文包括兩個部分： 2kw多功能交流勵磁電源研製和高壓大功率dc dc全橋變換器研究。 -
This thesis focuses on the development of the dc / dc stage, which adopted the phase - shifted zero - voltage - switching ( zvs ) pwm full - bridge converter with two clamping diodes
本文主要研究單相靜止變流器的dc / dc級，它採用加箝位二極體的移相控制zvspwm全橋直流變換器。 -
Dc / dc full - bridge converters is widely used under the situation which needs middle and high power supplies, so the investigation into its soft - switching technologies is very significant
Dc dc全橋變換器廣泛應用於中大功率場合，因此研究其軟開關技術具有十分重要的意義。 -
Verification regulation of dc comparator bridge
直流比較儀式電橋檢定規程 -
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。 -
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。 -
Di - on electric one of the beijing hi - new - tech enterprise develop and manufacture lots of equipment like sf6 dewpoint meter dp100, cable fault location system cfl6000 and more. di - on electric supply the most advanced technology and equipment on such as gis surge arrestor on line monitoring, resistance measuring, ac dc metrology, thermal - temperature bridge, power transformer diagnostic and testing, cable diagnostic and fault location, sf6and oil moisture measuring, oil treatment and testing, optic fiber temperature monitoring, circuit breaker testing, relay testing and more
迪揚電氣在gis和避雷器的帶電測試與故障診斷分析，電力電纜的故障定位與局放檢測，變壓器電抗器的各種測試診斷與溫度監測， sf6的水分測量與回收，絕緣油的測試分析與濾油處理，紅外測溫與光纖在線測溫，以及各種電阻測試與計量，溫度計量與電能計量等方面擁有世界一流的技術與成熟的儀器設備。 -
( 4 ) the experiment of asymmetrical half bridge converter design and the result of it base of the above analysis, the dc / dc converter is designed, it is proved that asymmetrical half bridge can realize zero voltage switching when it satisfies the condition of load current and deadtime by the experiment
（ 4 ）不對稱半橋的實驗電路設計及實驗結果基於前面的分析，設計了一個不對稱半橋dc dc變換器的實驗電路，進行了實驗研究，實驗結果證實了在滿足死區和負載電流兩個條件時，不對稱半橋可以實現零電壓開關。 -
At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder
硬體方面，採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。 -
First : before hardware supply aspect, sacd is already and first one - step to walk to the dvd - audio, as early as two year agos, sony company there will be an after style cause a sensation the commerce s scd - 1 the flagship to publish, closely upon heels and since then of scd - 777 ses, scd - 555s, scd - xb940, even dvp - s9000es, manantz that permit the company s sa - 1, sharp the company s dx - sx1, vanguard the company s dxax100 ; the sacd1000 of the philip s company, still there is the hi - fi exquisite article gold throat of the japanese dp - 100 dc - 101 cent machine, other is such as the japanese and peaceful bridge, love, the first stereo set etc., too numerous to enumerate. and dvd - audio the appearance so far also only there are pine next, victory, day the dragon wait a little amount species of a few companies should municipal. however and recently dvd - audio too at put on the pace to chase
首先：在硬體供應方面， sacd已先一步走到dvd - audio之前，早在兩年前， sony公司就有一款轟動業界的scd - 1旗艦問世，之後接踵而來的scd - 777se scd - 555 scd - xb940 ，甚至影音兼容的dvp - s9000es manantz公司的sa - 1 sharp公司的dx - sx1先鋒公司的dxax100飛利浦公司的sacd1000 ，還有日本著名的hi - fi精品金嗓子dp - 100 dc - 101分體機，其它如日本安橋愛華第一音響等等，不勝枚舉。而dvd - audio陣容到目前為止也僅有松下勝利天等幾家公司的少量品種應市。不過近來dvd - audio也在加快步伐追趕。 -
Dc high resistance bridge
直流高阻電橋 -
Full - bridge pwm motor drive a3952 is introduced in this paper, and an example is given for single phase dc brushless torque motor control
摘要介紹了一種全橋脈寬調制晶元a3952的特點和功能及其在單相無刷直流力矩電機控制中的應用。 -
Based on comparison of several motor candidates, doubly salient permanent magnet ( dspm ) motor is a good choice for it ’ s outstanding performance. similar to conventional drive system, dspm brushless dc motor ( dspm - bldcm ) is composed of dspm motor and it ’ s controller. the controller is made up of three - phase full - bridge inverter, driver, dsp control unit and etc. for high power system, every switch of three - phase inverter is actually made up of four mosfets in parallel
在充分考慮國內外不同的液壓泵電動機的基礎上，本文選用了雙凸極永磁電機作為整個系統的電機本體，並配以電動機控制器（控制器包括三相橋式功率變換器、驅動電路、 dsp主控單元、電流采樣及預處理和位置采樣及預處理等主要部分）組成整個液壓泵電動機系統。 -
The result shows that, when the full - bridge power converter is joined with boost / buck dc chopper in parallel, it can serve a dc voltage of over 340v and a power of 800w, meanwhile, as output voltage of the fuel cells changes due to loadings, the sliding - mode controller can cause more rapid responses and robustness to the dc bus voltage source
實驗結果顯示，本論文之全橋式功率轉換器與升壓/降壓直流截波器並聯供電時，輸出電壓可達340v以上，輸出功率約為800w ，同時，當燃料電池之輸出電壓因負載而改變時，本論文所提出之滑動模式控制器能使直流鏈電壓具有較快速的響應及強健性。 -
The dc draining electromagnet zdt series is the main accessory for the household full - auto washers and acts as openingclosing the drainage valve when working after being rectified with a diode bridge rectifier
直流排水電磁鐵zdt系列是家用全自動洗衣機主要配件，經二級管橋式整流后工作，主要起打開關閉排水閥作用。 -
The portable dc bridge is a device for measuring resistance that be applied widely to field - testing of electric power system
摘要攜帶式直流電橋是一種電隊測量儀器，在電力系統現場測試中應用極廣。
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