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This paper introduces the basic theory of fly-back topography and current mode PWM firstly. Then the total structure of the single-chip controller is present according to the function requirement and the working theory and the working principle are showed based on its actual application.

文中首先分析了反激变换的拓扑结构及电流反馈模式PWM控制的工作原理，然后根据设计要求完成了AC/DC电源管理集成电路整体结构的设计，同时结合实际应用电路阐述了其工作原理。

The applications of LTCC technology in power module and transformer fields are briefly reviewed, then a case of LTCC mix-integrated power module is mentioned and its design and process technology are researched. In this paper, we firstly design a 25W fly-back circuit topology, and debug the circuit in PCB layout independently.

论文从LTCC技术的应用出发，介绍了LTCC技术在模块电源和变压器制造上的应用现状之后，提出了一个基于LTCC技术混合集成电源的方案，并展开对这个方案的设计和工艺研究。

A single-end fly-back IGBT driving converter based on current-mode PWM controller is presented in this paper.

利用电流型PWM控制器UC3844设计单端反激式IGBT驱动电源。

In this paper, I firstly analyzed, foresighted and looked back the development of automation technology in recent years.

本文首先对近些年来工业控制方面的发展作以简单的分析、回顾和展望，接着针对热电厂电气监测监控系统的设计开发进行了论述。

This paper had looked back the theory for pricing credit derivatives with different aspects, and we also try to forecast how the theory will develop in the fut...

通过信息完全性方面不同的视角系统的梳理和回顾了近几十年来的主流信用衍生品定价理论，并对未来该理论的发展趋势进行评述与总结。

Audience posture. Back in 1885, Sir Francis Galton wrote a paper in 1885 called "The Measurement of Fidget."

身体姿势。高尔顿先生于1885年写了一篇名为《不安衡量方法》的文章。

In the present paper we looked back the history of glaucomatous surgical treatment and reviewed its developing way,which might revolutionize our underst...

然而，回顾一下青光眼手术治疗的历史和发展过程，对青光眼的进一步研究可能带来启发和思考。

The art of paper-cuts in china goer far back into history.

中国剪纸有着悠久的历史。

The next morning, Andrew tore the red piece of paper from the chain and Edgar counted,"One, two, three.""Right again, Edgar," said Grandaddy."Your Mommy and Daddy will be back in three more days - not long at all."

第二天早上，安德鲁撕下了纸链上的红色纸环，埃德加数了数，一，二，三，"你又数对了，埃德加，"外婆高兴地说，"你们爸妈三天之后就回来了，就快要回来啦。"

The methods of Spaceborne SAR simulation for the back signal of the natural ground and sea scene are investigated in the paper.

中文摘要：本文对星载SAR地面场景和海面场景的回波仿真进行了研究，综合了现有的比较好的方法，给出了星载SAR地面场景和海面场景的回波生成的系统步骤和实现方法。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。