An experiment circuit to simulate primary voltage of HF switching transformer is put forward.
还提出了模拟高频开关变压器初级电压的实验电路。
Secondly, the EMC predict of the switching transformer of the computer switching mode power supply is discussed.
其次，对微机开关电源的关键器件开关变压器进行电磁兼容预测。
The design of flyback switching transformer and feedback control loop and the improvement of the circuit for considering electromagnetic compatibility are the critical technologies.
反激式开关变压器和反馈控制回路设计，以及考虑电磁兼容性对电路的改进，是其关键技术。
Through deduction and analysis, the conclusion can be made: low reactance at the neutral point of transformer has little effect on the switching over-voltage in power systems.
通过计算和分析表明：变压器中性点接入小电抗对系统的操作过电压基本不会产生影响。
In common hard switching circuit, high voltage spike usually could be produced during switch transition process because of the effect of transformer leakage inductance and parasitic capacitor.
在常规的硬开关电路中，由于变压器漏感及寄生电容的影响，常常在开关转换瞬间会产生很高的电压尖峰。
How to design the switching supply transformer which operate reliably is very important for design of switching supply.
开关电源设计中，如何设计出性能稳定可靠的开关电源变压器是关键。
As for the main part of switching power, in particular, more detail in the transformer design, PWM controller selection, and working theory.
对于开关补偿电源的主电路部分，特别是变压器设计、PWM控制芯片选择、以及工作原理进行了详细的阐述。
Many new technologies, including soft switching technology, Al substrate, SMT, planar transformer and noise suppressors are applied.
样机运用了软开关技术、铝基板、表面贴装技术、平面变压器和尖峰抑制器等新技术。
Full bridge topology was used in the main circuit, IGBT was used as power switching device, and micro-crystal core was used in mid-frequency transformer.
其主电路采用全桥式拓扑结构，以IGBT管为功率开关器件，中频变压器使用微晶磁心。
At the same time, the restraint of actual switching times of the capacitor and transformer is considered.
算法应用过程中考虑了变压器和电容器的实际操作次数约束。
Each of the converter circuit branches may contain a power switching transistor, a diode or a winding of an isolated transformer in addition to general circuit components.
这种电路的每一支路中的元件，除一般电路元件外，还可能包括功率开关晶体管、二极管或隔离变压器的一个绕组。
High frequency and soft switching of converter can reduce the size and weight of transformer and filter, improve electric performance, increase efficiency and reliability.
变换器高频软开关工作可减小变压器和滤波元件的尺寸和重量，改善电气性能，提高效率和可靠性。
In the main circuit, the inverse parallel couple SCRs (silicon-controlled rectifier) are used as a electric switch, switching the transformer of resistance spot welding.
主电路以反并联的晶闸管作为控制开关，控制焊接用的电阻点焊变压器通电与否。
Finally, the application results of the switching mode power supply with the transformer are presented.
最后给出了利用该变压器设计制作的开关电源的测试结果。
Remember the presence of the switching power supply, which works totally differently from the conventional transformer-rectifier-filter setup found in nearly all audio gear.
记住开关式电源的存在。那是同设立在几乎所有音频齿轮上的传统的变压器—整流器—过滤器设备完全不同的。
It is approved that the novel high frequency power transformer can be applied on 50kva soft-switching submerged arc welding inverter successfully.
实践表明，该新型结构的功率变压器可以成功的在50kva软开关埋弧焊逆变器中应用。
In the midpoint voltage of leading leg transition, its soft switching is easily realized because of the primary current of transformer keeping the maximum.
领先桥臂中点电压变换期间，变压器初级电流基本保持最大值，使得领先桥臂容易实现软开关；
By using an active clamp circuit, the power transformer core is symmetrically reset. Zero voltage switching conditions are achieved over a broad input voltage and output current range.
利用有源钳位电路实现主变压器铁心对称复位，功率开关在宽输入电压和宽负载电流范围内零电压开关。
Interrupting no load transformer is the most serious case in vacuum circuit breaker switching overvoltage.
切除空载变压器是真空断路器操作过电压问题最严重的情况。
This paper describes a method for calculating the voltage distribution in EHV transformer windings during switching impulse withstand test.
本文阐述了一个计算超高压变压器在操作波耐压试验条件下线圈中电压分布的方法。
We study the calculating method and program the calculating software to simulate the exciter flow current on the no-load switching-in of transformer.
对涌流瞬态过程进行了分析，研究计算办法并编制了计算软件，可以对变压器空载合闸时的励磁涌流进行计算模拟。
This paper introduced the new IEC60076 -4 test guidance of lightning surge and switching surge for power transformer and reactor, which is the new edition of IEC722 (1982).
介绍了新的IEC60076—4电力变压器和电抗器雷电冲击和操作冲击试验导则，它是IEC722（1982）的新版，比原导则增加与完善了新的内容。
In addition, equivalent series reactance of excitation transformer worsens the condition of the thyristor operation, and it can bring transient over-voltage at the moment of switching thyristor.
励磁变压器的串联电抗恶化了晶闸管的换相工作条件，并在晶闸管元件导通与关断瞬间引起危及到转子励磁绕组安全运行的过电压。
In the process of developing submarine cable laying installation for Shengli Oil Field, a certain problem has occurred with overcurrent tripping during switching on of step up transformer.
在为胜利油田研制海底电缆铺设装置过程中，曾发生升压变压器合闸时过电流跳闸问题。
The switching-operation ticket expert system for power network used rules to describe operation ticket of transformer substation for generating knowledge and knowledge base.
电力网倒闸操作票专家系统，用规则描述变电站操作票生成知识构成知识库。
Phase - shifted converter realizes zero - voltage - switching with the use of leakage inductor of the main transformer, however, the realization of ZVS for lagging bridge leg is difficult.
移相控制全桥变换器能够实现开关管的零电压开关，但滞后桥臂难度很大。
Phase shifted converter realizes zero voltage switching (ZVS) with the use of leakage inductance of the main transformer, however, the realization of ZVS for lagging bridge leg is difficult.
移相控制全桥变换器能够实现开关管的零电压开关，但滞后桥臂难度很大。
An electronics transformer rectifier unit(TRU)with the output of 28.5V/100A DC is developed by using a novel phase shifted zero voltage and zero current switching PWM converter topology.
采用一种新型移相控制零电压零电流开关PWM全桥变换器拓扑，研制成2 8.5V/10 0A的航空电子变压整流器。
The control strategy is based on nine-zone diagram and combined with artificial neural network, which makes a decision about the change of transformer taps and capacitor switching.
该系统控制策略以九区图为基础，并且在容易引起频繁动作的边界上采用人工神经网络预测变压器分接头调节和电容器投切后的电压无功，以决定采用何种控制方式。
The control strategy is based on nine-zone diagram and combined with artificial neural network, which makes a decision about the change of transformer taps and capacitor switching.
该系统控制策略以九区图为基础，并且在容易引起频繁动作的边界上采用人工神经网络预测变压器分接头调节和电容器投切后的电压无功，以决定采用何种控制方式。
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