基于开放式探究教学模式在电子教学中的应用

Application of open teaching mode in the teaching of electronics

"探究教学"在是以教师为引导,学生参与合作为主体的教学方式。文章主要是在以引导学生在实践中的调研分析的基础上,结合自身专业的特点和生产生活实际情况设计了一款输出电压精度高、纹波率小,总体性能优良,基于单端反激式拓扑结构的25W、48V转+5V、+15V、-15V三路输出反激式开关电源。Saber2007对所设计电路的部分关键模块进行的仿真实验的结果显示:本三路输出反激式开关电源电路简单、有效输入电流范围宽、电源的动态响应速度快、控制精度高的开关电源,尤其适合在对电源精度要求较高或负载条件较差的情况下使用。在教师的引导下,通过实际的项目创造个性化学习。

'Inquiry Teaching' is the teaching mode to take teacher as guidance,students participation and cooperation as the main body.This paper is mainly based on the analysis to guide the students to practice in the upper,to design a high precision of output voltage ripple rate combined with their own professional characteristics and the production and living conditions,the overall performance is excellent,based on single-ended flyback topology 25W,48V to +5V,+15V,-15V three output flyback switching power supply.The results of Saber2007 simulation of some key module circuit design is carried out show that: the three road output flyback switching power supply circuit is simple,effective and range of power supply input is wide,dynamic response is fast,high precision control of switching power supply,particularly suitable for use in power source with high precision or load conditions case.Under the guidance of teachers,through the actual project to create personalized learning.