现在,电子爱好者都热衷于自己制作、装配音响设备,可功能切换却是一个小小的难题。通常采用的机械切换方式由于引线较多,弄不好会影响整机效果的发挥。现介绍一种电子功能切换电路,结构简单、容易制作,便于加设遥控功能。电路原理如图所示,IC_2、IC_3是CMOS 4×1双向模拟开关,用它接成1 Now, electronic enthusiasts are keen on their own production, assembly audio equipment, but functional switching is a small problem. The commonly used mechanical switching method due to more leads, get it will affect the machine’s effect. Now introduce an electronic function switching circuit, simple structure, easy to make, easy to add remote control function. The circuit principle as shown, IC_2, IC_3 CMOS 4 × 1 bi-directional analog switch, use it as 1