在进行简单的电路实验时,一般不超过四五只晶体管的电路,这时采用“刀刻法”制作印制电路最为方便。下面我们以带短路保护的稳压电源为例,介绍刀刻印制电路板的设计方法和制作过程。图1(a)为带短路保护的稳压电源电路原理图。设计时,要以原理图中的晶体管为核心,以各晶体管和所 In a simple circuit experiment, generally not more than four or five transistor circuits, then use the “knife” method of making the most convenient printed circuit. Below we take the power supply with short circuit protection as an example to introduce the design and manufacturing process of the printed circuit board. Figure 1 (a) for the power supply circuit with short circuit protection schematic. Design, the schematic to the transistor as the core, to the transistor and the