First , on the base of theory analysis and computer simulation , this paper uses interleaved two - transistor forward circuit to realize the main circuit of boost dc - dc converter , and also presents the structure , the principle and the design . the method is proved to be effective by simulation 首先，在理论分析和计算机仿真的基础上，本文选择交错并联双管正激变换拓扑作为升压型直直变换器的主电路，对它进行了电路原理分析和具体的设计，仿真结果验证了该设计方法的可行性与有效性。
In this paper , according as the technical parameters of autonomous power supply in full digital gun , the boost dc - dc converter and digital control of the full digital dc power supply is described , and the soft switching is also discussed . some key technology is mentioned , and a series of effective solutions are also gived 本论文针对数字化火炮自主供电系统的性能、特点，主要对其驱动直流电源进行了探索和研究，重点论述了升压型直流?直流变换、数字化控制以及软开关等关键技术，给出了一系列有效的解决方案。
We took the high frequency flyback converter design as an example and made a calculation model of the total loss of the high frequency flyback transformer . on basis of the caculation model combined with the systemic method of designing dc - dc converter , and the method which is base on the current shape , is presented to achieve the appropriate parameters of the flyback transformer , an optimized approach to design high frequency dc - dc converter is given in this paper . the appropriate parameters were achieved by genetic algorithm . through this method , a practical high frequency flyback 2 .在理论分析的基础上,以优化高频变压器的磁芯损耗和绕组损耗为目标,以单端反激式变压器为例建立了高频变压器的总损耗计算模型,在该损耗计算模型的基础上结合从系统角度设计dc - dc变换器的方法和考虑电感电流波形对变换器设计的影响,采用一种基于遗传算法的高频dc - dc变换器的优化设计方法,该优化方法实现是通过遗传算法计算得到设计参数的最优取值。
The switch power possesses the advantages of compact size and high efficiency compared with conventional linear power which makes its wide application in the field of communication , computer , etc . in recently year , there is a rapid increasing market demanding for battery - powered portable equipments ( such as pdas , mobiles , etc ) , which requires the dc - dc converter with high efficiency to boost the battery supply capability and good large signal property to satisfy the special demand of the cpu , dsp and flash memory 相对于线性电源,开关电源具有体积小、效率高等优点,使其在通讯、计算机等领域得到广泛应用。近年来,电池供电便携式设备(如pda 、手机、 mp3播放器等)的需求越来越大,对dc - dc开关电源ic的需求也日益增大,同时对其性能要求是越来越高。要求dc - dc转换器具有高转换效率,以延长电池供电时间;并具有良好大信号特性,以满足cpu 、 dsp和闪存等模块要求。
The demand to optimization objects is lower , and it is applied extensively in engineering applications and science researches . due to the prominent ability of optimization , we can consider naturally to take the advantage of genetic algorithm to optimize the parameters of fuzzy controller . this paper brings forward a kind of fuzzy controller optimized by genetic algorithm to control dc - dc converter , and makes some improvement to the traditional genetic algorithm to improve the ability of optimization 遗传算法是模拟自然界生物进化“优胜劣汰”原理的一种参数寻优算法，它具有隐含并行性和全局最优化的能力，并且对寻优对象的要求比较低，在工程应用和科学研究中，得到了广泛的应用，由于遗传算法的卓越的寻优能力，我们很自然地想到用遗传算法来优化模糊控制器的参数，本文就提出一种用遗传算法优化的模糊控制器来控制dc - dc变换器，并且对传统的遗传算法进行了改进，使之优化能力更好，经过仿真试验证明经过改进的遗传算法优化的模糊控制器对dc - dc变换器的控制效果更好。
At present , most majority of control projects are still based on state - space averaging model or linear small signal model , as a result , it solved the analytical problem of steady state and dynamic state low frequency signals . because of the strong non - linear of the system , the application scope of this simple model is limited greatly . to gain new breakthrough on the control of the dc - dc converter , we must establish a new , more precise and applied large signal discrete model , and we must develop unconventional sampling control theories 目前绝大多数控制方案仍然基于状态空间平均模型或线性化小信号模型，这较好地解决了pwm型dc - dc变换器的稳态和动态低频小信号的分析问题，但是又由于系统的强非线性，这种简单模型的适用范围受到了很大的限制， dc - dc变换器控制上要获得新的突破，必须建立一个新的、更精确和实用的大信号离散模型，还需要发展非传统的采样控制理论。
This structure is kind of outer - coalescent . it adopts neural network ' s clustering function to classify the system output , then link a fuzzy controller in form of series which rules are made through the classified result . the design process and the experiment shows the well control effort to the full - bridge series type resonant dc - dc converter , at the same time the whole process avoids not only the modulating parameter process of the traditional method , but also the complexity of the traditional fnn design 然后本文又对全桥式串联共振型dc - dc变换器的主电路的状态方程进行了理论上的推导，从而确定了这种全桥式dc - dc变换器的各种工作模式；然后通过分别对模糊控制和神经网络进行介绍，提出了一种新型的模糊神经网络控制器模型，该控制器模型是一种外接式结合? ?串联式结合方式，它利用了神经网络的聚类功能，采用了一种再生式神经网络，即elman网络来对系统输出进行分类，然后根据分类结果设计模糊控制器，这样就简化了整个模糊神经网络控制器的设计过程。
