| 1. | Numerical study of two - parameter bifurcations for the discontinuous current - programmed buck - boost converters 变换器二参数分岔的数值研究 |
| 2. | This paper focuses on the research of the characteristics of the buck - boost basic circuit applied in the ac voltage system 本文着重研究了buck - boost电路在交流应用中的一些特性。 |
| 3. | Besides , the design procedure and power loss analysis were given for a buck - boost converter of 540kw 27 - 270vdc / 28vdc 接着,本文给出了540w27 - 270vdc / 28vdc变换器的设计过程,并进行了损耗分析。 |
| 4. | Theoretical analysis and simulation are presented . finally , the proposed buck - boost type circuit was implemented and tested 对于buck - boost型电路做出电路板进行了实验测试,测试结果也一并给出。 |
| 5. | Texas instruments incorporated , “ understanding buck - boost power stages in switchmode power supplies ” , march 1999 宋自恒、林庆仁”功率因数修正电路之原理与常用元件规格” ,新电子科技杂志第217期, 2004年4月号。 |
| 6. | Through comparison of characteristics for different dc / dc topologies , buck - boost converter was selected as main topology of the power system 在充分考虑不同dc / dc变换器拓扑特点的基础上,本文选用了buck - boost作为系统的主电路拓扑。 |
| 7. | How to vary the two variable quantity of the buck - boost basic circuit on the high frequency switching and whether or not their varying laws are fit for their theoretical conclusion 高频开关下的buck - boost电路中各个变量的动态变化如何,其变化规律是否与理论上的推导一致。 |
| 8. | At last , this paper also design a small capacity buck - boost type chopper system , pointing out the problems and difficultes of the ac modulation voltage system in the future 最后,对小容量斩波控制buck - boost电路调压系统作了初步的设计,指出了本课题研究调压系统有待解决的一些问题。 |
| 9. | According to the equalization techniques introduced first , the thesis chooses the bidirectional buck - boost converter as the main equalization circuit , with the introduction of equalization strategy followed 首先,通过对均衡技术的研究,选用了基于双向升降压变换器作为均衡主电路,并对均衡控制策略进行了探讨。 |
| 10. | Two circuits , characterized by high power factor and low output voltage , are proposed . one is originated from the concept of charge pump , and the other functions in the same principle with so - called buck - boost circuits 最后提出了两种功率因数校正的电路拓扑:一种是由电荷泵原理引出的;另一种是基于buck - boost原理工作的电路。 |