橋接電流 的英文怎麼說
中文拼音 [qiáojiēdiànliú]
橋接電流
英文
bridge circuit- 橋 : 名詞1. (橋梁) bridge 2. (姓氏) a surname
- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 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...
- 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...
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
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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。After expounding the power supply and current collection modes of the rolling stock in shanghai umt pearl line in terms of technology and economy, the author argues that two current collection modes shall be adopted for shanghai umt pearl line, i. e. a third rail collector be on skybridge while the overhead contact line on the ground
摘要闡述了城市軌道交通車輛供電受流方式的特點,並從技術和經濟兩方面對上海明珠線車輛供電受流方式進行了探討,提出了明珠線車輛應採用雙受流方式,即高架橋上採用接觸軌受流器受電,地面採用架空接觸網受電弓受電。Ceramic welding backups are used for one - sided welding of steel and aluminum alloy with any thickness, instead of two sided welding in shipbuilding industry, marine industry, and heavy mechanical industry. the products are stuitable for the most kinds of welding process such as gmaw, saw, fcaw and seg even with high electric current to produce a satisfactory back bead formation
陶瓷焊接墊是用作鋼鐵或鋁合金單面焊雙面成型的支撐件,可替代效率低下的雙面焊工藝,被廣泛應用於造船,橋梁和重型機械等工業領域的各種焊接( gmaw , saw , fcaw和seg )甚至高電流場合This system consists of a full bridge pwm ( pulse width modulation ) regenerative rectifier or so - called vsc ( voltage source converter ) that connected to pcc ( point of common connection ) at the power utility grid through a passive interface circuitry
這種系統包括一個pwm全橋可逆整流器或者所謂的電壓源變換器,通過無源電路介面與電網的pcc點(公共連接點)相連。The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下:在人工氣候室內,根據不同覆冰絕緣子正、負極性下的閃絡試驗結果,得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓;正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應;覆冰較少時,合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法,對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明,直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低,且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。It will effect the system in safety and running economy directly > test of tradition past the method is an usage to give or get an electric shock the bridge method or direct current to press to decline the method to proceed to measure, and the electric current for producing of is only in the ma class which ca n ' t broke through the oxidize surface
高壓斷路器是電力系統中最重要的控制和保護設備之一,它對系統的安全、經濟運行有著直接的影響。以前傳統的測試方法是使用電橋法或直流壓降法進行測量,所產生的電流僅在ma級,不能擊穿觸頭氧化膜。Its main advantages are soft - switching while operating at constant switching frequency and a simple control. in order to be applied under more high voltage, the fb converter can also be converted to tl topology. using the basic tl topology derivation method, fb tl converter can be deduced
應用三電平拓撲變換的基本方法,直接得到了全橋三電平直流變換器的拓撲結構,使其開關管的電壓應力降到輸入電壓的一半,進一步拓寬了全橋直流變換器的應用范圍。Discuss the dc adjust voltage and timing system simulator process and way of the container crane, which containing the dc motor drive and drivers " select, drivers connection and control
?集裝箱裝卸橋直流調壓調速系統模擬過程及方法,其中包括直流電機傳動及驅動器選擇、驅動器接線與控制。For the convenience of test, varied circuit chip defects caused by the production process are abstracted as all kinds of models. at present the commonly used fault models mainly consist of stuck - at fault, stuck - open fault, bridge fault, store fault, delay fault, etc. testing methods based on voltage testing mainly aim at stuck - at fault model and have also obtained satisfactory result in research for many years. bridge fault is tested easily by quiescent power supply current ( iddq ) testing method. in regard to stuck - open fault that is difficult to testd by quiescent power supply current ( iddq ) and voltage testing, it can is tested by the dynamic current ( iddt ) testing
為了便於測試,我們將生產過程中集成電路出現的多種多樣的缺陷抽象為各種模型。目前常用的故障模型主要有:固定故障,開路故障,橋接故障,存儲故障,時滯故障等。電壓測試主要針對固定型故障模型,多年的研究也取得了令人滿意的結果; cmos電路中的橋接故障則宜用穩態電流測試方法( iddq )測試;對于電壓和穩態電流難以測試的開路故障,可以使用瞬態電流測試( iddt )的方法進行測試。The feasibility and effectiveness of the iddt testing are both validated by experiments. at last, transistor bridging faults are simulated based on iddq testing and gate bridging faults and stuck - at faults based on voltage testing through detaching a pattern pair into two independent patterns
最後,把一個輸入向量對看成兩個獨立的向量,分別採用穩態電流測試方法和電壓測試方法模擬橋接故障的晶體管級故障和橋接故障的門級故障及固定故障。The zero - voltage - switching ( zvs ) pwm hybrid full - bridge three - level ( h - fb tl ) converter can operate in both three - level mode and two - level mode, the output rectified voltage is close to the output voltage over the entire input voltage range, thus the output filter can be reduced significantly, leading to high power density and fast dynamic response. so the zvs pwm h - fb tl converter is very attractive for the applications such as fuel cells, photovoltaic cells, and telecom power supplies, where the voltage varies in a wide range
零電壓開關復合式全橋三電平( zero - voltage - switchingpwmhybridfull - bridgethree - level , zvspwmh - fbtl )變換器可以工作在三電平模式和兩電平模式,在很寬的輸入電壓范圍內,輸出整流電壓都接近輸出電壓,從而可以減小輸出濾波器,因此可以提高變換器的功率密度和改善動態性能。Discuss the ac frequency conversion timing system simulator process and way of the container crane, containing the ac frequency conversion motor drive and drivers " select, drivers " connection and control
?集裝箱裝卸橋交流變頻調速系統模擬過程及方法,其中包括交流變頻電機傳動及驅動器選擇、驅動器接線與控制。Slave cpu receives the spwm data and output the spwm wave by query the spwm table. the dead time is generated by hardware to prevent the h bridge arm from short directly. the power out module is protected for over current, over voltage and over heat
逆變器採用雙cpu結構,使用spi進行連接,主cpu完成輸入、輸出和spwm波形數據的計算,從cpu接收到spwm數據后使用查表方法輸出spwm波形,使用硬體電路生成死區時間防止橋臂直通,對輸出功率模塊進行了過流、短路、過壓、過熱保護。分享友人