What are the role of electronic components?

1. Resistance: Its function is to limit voltage and current passing; capacitance: play the function of cross -linging, filtering, intervals and adjustment and tuning;

2. Understanding: DC, high frequency low -frequency or filtering, that is, the frequency signal will encounter resistance when passing through the inductor coil, and the resistance presented when the low -frequency signal passes , The resistance of the inductor coil to DC is almost zero;

3. Diodes: play the role of rectification, detection and stabilization;

4. The triode: It plays the role of amplifying communication and pulse current and impedance transformation;

5. Integrated circuit: It plays the role of concentrating the above functions.