Basic Circuits Bypass Capacitors1 Basic Circuits - Bypass Capacitors This time in Basic Circuits, I would like to discuss bypass capacitors. This article will explain the function of a bypass capacitor, when its appropriate to use them, and what values you should consider using. The Function The definition of a bypass capacitor can be found in the dictionary of electronics. Bypass capacitor: A capacitor employed to conduct an alternating current around a component or group of components. Often the AC is removed from an AC/DC mixture, the DC being free to pass through the bypassed component. In practice, most digital circuits such as microcontroller circuits are designed as direct current (DC) circuits. It turns out that variations in the voltages of these circuits can cause problems……