集成运放差动输入电路的设计思路

详细分析了集成运放的差动输入电路形成过程.一方面给出该电路完整的形成过程,化解了这个模拟电路教学中的难点;另一方面,更从理解设计思想、培养创新精神的角度出发,让学习者不仅学会了一个具体的解决方案,更理解了一个方案从何而来的问题.任何设计方案都有其来源,采用递进累加的方法讲解某种现有方案的形成,有助于学习者领悟创新思想的来源,摆脱简单的照搬照抄,真正实现从模仿者向创新者的转变.实际上绝大多数的创新设计,都是已有知识的组合运用,虽然以差动电路的设计为例,但这种讲述方法是通用的,有效地利用这种方法,有助于在学习中培养创新设计的能力.

Deduction process of differential input circuit of integrated operational amplifier

Any design can only come from functional requirements. By analyzing the formation process of the differential input circuit of Integrated Operational Amplifier, a complete formation process of the circuit is given resolving the difficulty in teaching analog circuit on one hand~ on the other hand, from the perspective of understanding design ideas and cultivating innovation spirit, let the learners not only learned a specific solution, but also a better understanding of where a solution come from. Any design has its sources, using the method of progressive accumulation on the formation of an existing solution, help learners to understand the source of innovation, to get rid of simple copying, to really achieve the transition from imitators to irmovators. In fact, the vast majority of innovative design is the combination of existing knowledge application. In this paper, although the design of differential circuit as an example, the narrative method is a general, effective use of this method that contributes to the cultivation of innovative design ability in learning.