reverse voltage 中文意思是什麼
reverse voltage
解釋
反向電壓-
Semiconductor discrete device. detail specification for npn silicon low - power hiht - reverse - voltage transistor for type 3dg182gp gt and gct classes
半導體分立器件gp gt和gct級3dg182型npn硅小功率高反壓晶體管.詳細規范 -
In order to eliminate the voltage oscillation caused by the reverse recovery of the rectifier diodes, a resonant inductance and two clamping diodes can be introduced to the primary side
為了消除輸出整流管的電壓尖峰，可以在原邊加入一個諧振電感和兩個箝位二極體。 -
Measured at applied forward current of 10ma, reverse current 1. 0ma, reverse voltage of 6. 0 voltage and rl = 100 ohms
測試條件:提供10毫安順向電? ， 6伏等逆向偏壓與100歐姆負載電阻，並於逆向電?回覆至1毫時?得的時間 -
Unfortunately, though the lifetime control technology reduces the stored charge, it increases the forward voltage drop ( vr ) and the reverse leakage current ( i, ). therefore, si pin diode cannot realize a good trade - off in qs - vf - i, -. the appearance of sige material and sige / si hetero - junction technology has changed this situation
但少子壽命控制技術在減少存貯電賀q _ s的同時，也增大了正向通態壓降v _ f ，和反向漏電流i _ r ，因此很難實現qs - v _ f - i _ r三者良好的折衷關系。 -
The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level
本論文作者通過模擬測試，驗證了課題研究的理論設想，並設計製作了具有低陽極發射效率結構的高壓功率frd ，利用局域鉑摻雜和電子輻照相結合的壽命控制方式，實現器件反向恢復時間的極大減小，並且反向漏電流、軟度因子、正向壓降等關鍵參數也較理想，且具有極佳的漏電溫度特性，達到器件綜合性能的優良折衷，達到國際先進水平。 -
High leakage currents and soft reverse current - voltage characteristics are some of the detrimental effects produced by the metal atoms dissolved in the silicon matrix. gettering procedures can reduce metal contamination
由於金屬雜質原子擴散並沉積在器件的有源區，會造成諸如：反向漏電流較大，反向擊穿電壓是軟擊穿等有害的影響。 -
Aimed at some problems such as short spraying distance, electricity - leaking and reverse ionization among electrostatic nozzles existing in the country, a induction charging and pneumatic energy electrostatic nozzle was designed. the basic designing theories, structure and working process of this nozzles were theoretically specified in the paper. and then the atomization quality and charge performances of this nozzle and its affecting factors were studied by carrying out performance experiment and statistic analysis. result of the studies indicate : ( 1 ) some progress were made in solving the problems list above ; ( 2 ) from this nozzle, droplet were minute and uniform, and higher charge - mass ratio can be obtained under lower electrostatic voltage, thus the atomization quality and charge performance of this nozzle were both better ; ( 3 ) within the experiment extend, air pressure at 0. 2mpa, electrostatic voltage at 2400v were the most suitable parameters for the nozzle ; ( 4 ) the regression equations for describing droplet size, intensity of spray current and charge - mass ratio of this nozzle obtained from the experiment data had higher forecast precision ; ( 5 ) cross - effect of all factors were not significant, the atomization quality and charge performance were relative dependency affected by the factors
諸試驗因素中，充電電壓和噴孔直徑對霧滴荷質比均有極顯著的影響；氣體壓力和液體流量對霧滴荷質比的影響均不顯著；影響霧滴荷質比的主要因素依次為充電電壓和噴孔直徑; （ 8 ）在300v 、 600v 、 1200y 、 1800y 、 2400v 、 3000v六種充電電壓t ，霧滴荷質比先隨充電電壓的增加而增大， 2400v后荷質比減小，推測:對于所研製的噴頭可能存在一個最佳充電電壓; （ 9 ）由充電電壓和噴孔直徑的不同搭配所得霧滴荷質比不同這一結果，可看出，較大充電電壓需配備較大噴孔直徑以增強霧滴荷電效果; （ 10 ） td3 . 6和td3 . 4兩噴頭的霧滴荷質比曲線趨于重合，說明噴孔直徑大於滬3 -
Abstract : the system composed of intelligent control modules for three - phase induction motors is introduced in this paper. this module can conduct starting, reverse braking, and reverse conrtol with current limiting resistance. besides, it can also detect low voltage, overload, and open circuit of 1 or 2 phases, and do protection according to the detection. it especially fits to the controlling of motors which often do starting, braking and reversing
文摘:介紹了一種智能三相電機控制模塊組成的系統，能在串電阻（電抗）起動、反接制動和換向控制的基礎上進行欠壓檢測、過載檢測、斷相檢測及電機故障保護.尤其適用於起動、制動和換向控制頻繁的電機控制場合 -
Jdy - 280 electromagnetic lock with led product characteristic : easily installed, low noise and durable ; strong magnetic force, no magnet left when power off with led and network signal output built - in reverse wave protection function usage range : be used with intercoms and access control systems can be installed onto wooden door, metal door, glass door, fireproof door function : working voltage : 12vdc, 24vdc working current : 12vdc 0. 53a, 24vdc 0. 27a working condition : 40 50 working mode : cut off power to open wires are insulated, dc500v absolutely insulated in 1 minute. dimension of the magnet board : : 184 x 36 x 11mm dimension : 235 x 45 x 30mm weight : 1980g yiwu qimingxing computer company copy right
Jdy - 280磁力鎖帶指示燈產品特性:安裝方便噪音低壽命長吸力強無剩磁內置反向突波保護功能適用於90開門，有門偵測信號帶鎖狀態指示燈及聯網信號輸出適用於樓宇對講門禁系統配套使用適用門型：木門金屬門玻璃門防火門電氣性能：工作電壓： 12vdc 24vdc工作電流： 12vdc 0 . 53a 24vdc 0 . 27a工作環境： 40 50工作方式：斷電開鎖鎖狀態有指示燈指示：鎖門時綠燈指示燈亮開門時，紅色指示燈亮絕緣電阻測試： dc500v 1分鐘無擊穿鐵板尺寸： 184 x 36 x 11mm外形尺寸： 235 x 45 x 30mm重量： 1980g -
1 ) the transformer leakage inductance will cause surge voltage across the switches. two clamp circuits are combined to solve this problem : lcd clamp circuit, in which the voltage across clamp capacitor is no reverse ; flyback clamp circuit, which consists of an additional flyback winding coupled with the boost inductor and a diode connected to the output terminal
本文綜合了兩種箝位電路: 1 ） lcd箝位電路，箝位電容上電壓不反向; 2 ）通過增加一個與升壓電感耦合的反激線圈和一個連接到輸出電容的整流二極體，構成反激箝位電路。 -
The contributions done are as follows : according to the mathematical model of doubly fed motor and the theory of vector control, a unit power factor of rotor control scheme is proposed. in the doubly fed adjustment system, in order to control magnetic torque of motor this scheme is designed by controlling the reverse direction between rotor voltage and current to keep the vertical direction between rotor current and flux. it is known from theoretical analysis that for partly decoupling this scheme is only effective under sub - synchronization speed, but not control the system and obtain steady state since speed adjustment system ca n ' t adjust the magnitude of rotor flux under sup - synchronization
而傳統的無速度傳感器雙饋調速矢量控制系統，由於採用磁鏈定向方法，在同步速附近存在較大的工作死區，針對上述問題，本文做了如下的研究工作：本文從雙饋電機的數學模型出發，根據矢量控制的基本原理，提出了一種轉子側功率因數為1的雙饋電機矢量控制方案的設想，即在雙饋調速時採用轉子電流定向的方法，並控制外加轉子電壓與轉子電流始終反相，以保持了轉子電流與轉子磁鏈矢量垂直，通過控制轉子電流的大小來達到控制電機電磁轉矩的要求。 -
For the first time, the energy band configuration of p - si / n - bn heterojunctions were studied and drawn up. the study of the current - voltage ( i - v ) characteristics showed significant rectifying behavior with reverse saturation current of 3. 7 x 10 ~ 7a, breakdown voltage of 30v and turn on voltage of 14v. the capacity - voltage ( c - v ) characteristics are studied too
研究了p - si / n - bn異質結的-特性，測試表明異質結具有明顯的整流特性，反向飽和電流3 . 7x10 「 』 a ，擊穿電壓高達30v導通電壓為14v ，應用p七en異質結能帶圖對其卜v特性做出了定性解釋。 -
Solid tantalum capacitors are polar capacitor. reverse voltage is not permissible
3固體鉭電容器為極性電容器，不適宜在加反向電壓條件下使用。 -
Recurring to rnathematic figure and examples and aiming at such questions as unbalanced current and induced voltage and high frequency interference, this paper has not only researched anti - jamming ability and measuring process of both three - electrode method and four - electrode method which are combined with reverse phase method, but also summarized actual measuring experiences
通過數學推導和實例，圍繞消除地網不平衡電流、電壓極電流極引線問互感電壓、高頻干擾等問題，分析了三極法、四極法結合倒相法測量接地電阻的抗干擾能力和測量過程，並總結了實際測試經驗。 -
To reduce the emi, reverse reset of the diode are studied, and design way about spike - killers and saturable inductors witch can suppress voltage and current spikes are showed. in this thesis, a transformer clamping full - bridge dc / dc converter is presented to salve the high input voltage. in this chapter, the operating principle is analyzed and experimental results have been showed on the 2kw converter
在處理高壓問題上，本文又提出了變壓器箝位高壓大功率dc dc全橋變換器拓撲方案，文中對其工作原理進行了分析，文中以一臺2kw的原理樣機對其工作原理進行了驗證，很好地解決了輸入電壓高的問題。 -
The purpose of introducing ferroelectric polymeric pvdf material was to make use of the remanent polarization of ferroelectric materials and to study the effect of the internal field formed in the device during the device worked. the diodes were driven at constant voltage and were also kept under short - circuit or reverse - bias conditions
本文將具有特殊極化性能的鐵電高分子材料pvdf引入器件，目的在於利用其電場下其殘余極化特性，研究此種器件工作時形成的內電場情況及其對器件穩定性的影響。 -
Breakdown reverse voltage
反向擊穿電壓 -
For improving the temperature stability, a voltage reference circuit that adopts high - order compensations technology with the exponential relationship between diode reverse current and temperature is presented in this thesis
但此電路受工藝影響較大，需在以後的工作中進行改進。在bcd工藝基礎上，論文通過cadence軟體設計了部分子模塊的版圖，並在 -
A current - doubler - rectifier ( cdr ) zvs pwm h - fb tl converter is proposed in this paper, the proposed converter can achieve zvs for all the switches in a wide load range with the use of the energy stored in the output filter inductance, in the meanwhile, the voltage oscillation and voltage spike across the rectifier diodes resulted by the reverse recovery are eliminated
為了消除輸出整流二極體反向恢復造成的的電壓尖峰和振蕩，同時使所有開關管在很寬的負載范圍內實現zvs ，本文提出了倍流整流方式的zvspwmh - fbtl變換器。 -
It analyzes the factors such as the partition of all the same layer, net power flow and distribution level to optimized routing adjustment of reactive power and voltage regulation of all power plants and substations, including local and globe. it makes power flow available and meet the need of the reactive power balancing and the reverse voltage regulation by combining the reactive power balancing principle of voltage - grading & district - dividing and local reactive power compensation with feasible power flow regulation, the reverse voltage regulation of central point voltage
該方法將無功的分層分區平衡與就地補償原則以及中樞點電壓的逆調壓原則引入到潮流的可行解調整策略之中，通過全網同層區的劃分及其網路潮流和負荷水平的計算分析，來實施對各發電廠和變電站的電壓與無功的全局或者局部的試探調整，以保證潮流的可行，並盡可能滿足無功的合理平衡與電壓的逆調壓要求。
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