在设计中，以TL 494作为PWM产生电路输出控制信号，控制开关管的导通状况，在半桥反激式输出的基础上实现了电源的多路输出。
In the design, to produce circuit TL494 as a PWM output control signals, control of the on-switch situation, the half-bridge flyback output on the basis of the power of multi-output.
在我们的情况下，晶体管的关闭和变压器模式工作在反激。
In our case the transistor turns off and the transformer operates in flyback mode.
其结果表明，管跨的同向涡激振动一般不会对管线系统的正常运行构成威胁，而管跨的横向共振则必须予以消除。
The results show that in line vibration can not bring serious danger to submarine pipeline system in most cases, while cross flow vibration must be eliminated.
在分支管路中，当分支管中的流量大于某一值时，自激振动就不会产生。
Whenthe discharge is higher than a certain value in a branch pipe, on self - excited vibration will produce.
该模型的计算结果表明，立管的模态振型、模态频率与涡激振动响应高度耦合，并且对于低质量比的情况尤为明显。
It shows that the modal shape and mode frequency are highly coupled with the VIV response of a Marine riser with low mass ratio.
在无外加强制作用下实现里克管脉动工况数值模拟，与里克管作为自激热声装置的实际情况一致。
Numerical simulation results of Rijke tubes, pulsating without forced triggering, agree with actual conditions of Rijke tubes acting as self-excited thermal-sonic devices.
海底管跨的涡激振动是引发管跨共振失效的主要因素。
Vortex induced vibration of submarine pipeline span is the major factor of resonance invalidation of pipeline.
从管跨的可靠性分析中看出，由海浪和海流引起的涡激振动是破坏管跨的主要因素之一。
From the reliability analysis of span, vortex-induced vibration resulting from ocean wave and current is one of primary destroy factors.
传统交错并联双管正激组合变换器应用于高电压输出场合时存在变换器次级电压偏高、高频整流二极管电压应力大的问题。
The traditional interleaved two transistor forward converter exists high voltage stress of freewheeling diode when applied in high output voltage condition.
控制器驱动外部NPN晶体管的射极，并与变压器串联构成反激式拓扑，系统通过变压器和光耦实现离线式的要求。
It drives the emitter of an external NPN transistor, and series with transformer to consist a flyback topology. The system is offline through the use of transformers and optocoupler transistor.
管跨结构的涡激振动分析是海底管线疲劳分析和安全评价的重要环节。
Vortex induced vibration of submarine pipeline span is the major factor of resonance invalidation of pipeline.
在有源箝位正激电路中，为了使主开关管和辅助开关管能较容易地实现零电压开通条件，提出了一种改进型有源箝位正激拓扑方案。
To briefly introduce the operating mechanism for the soft switch of the active clamping and forward and flyback combination of ZVS-PWM with the single-end circuit topology.
研究结果表明：管的壁厚越小，自激振动的减阻率越大；
Results show that the thinner the thickness of the flexible tube, the bigger the decrease rate of the friction coefficient;
回旋管是一类基于电子回旋谐振受激辐射机理的快波器件，工作频率范围宽，特别是在毫米和亚毫米波段，能产生高脉冲峰值功率与连续波功率。
The fast wave device gyrotron is base on the radiation theory which is excitated by electrons cyclotron resonance. Its frequency is very high especially at the millimeter and sub-millimeter wave band.
文中介绍了NCP1205的工作原理和主要特点，并将其应用于交错并联反激电路中，大大减小了开关管的开通损耗，减小了输出电压纹波，提高了电路效率。
NCP1205 is applied to the interleaving paralleled backward circuit to reduce the switch tube power loss and output voltage ripple, to enhense the circuit efficiency.
文中介绍了NCP1205的工作原理和主要特点，并将其应用于交错并联反激电路中，大大减小了开关管的开通损耗，减小了输出电压纹波，提高了电路效率。
NCP1205 is applied to the interleaving paralleled backward circuit to reduce the switch tube power loss and output voltage ripple, to enhense the circuit efficiency.
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