The article explains how to use capacitors in electronic circuit by analyzing their appropriate functions depending on the application need of a given circuit stage
If you are new to electronics and eager to grasp the subject fast, then perhaps you will first have to get familiar with the various components used in electronic circuits.
How Does a Capacitor Function?
According to its working principle, when a voltage (DC) is applied to its pair of conducting plates, an electric field is generated across them.
C = Q/V.
Where C = Capacitance, Q = Charge and V = Voltage.
So it can be clearly understood from the above formula that the potential drop or the voltage across the plates of a capacitor is proportional to the instantaneous charge Q stored in the capacitor. The unit of measurement of capacitance is Farad.
What is a capacitor used for?
The following illustrations will clearly make you understand what is a capacitor used for? In electronic circuits, capacitors are commonly used for the following purposes:
A power supply circuit may be rendered useless without a filter capacitor. Even after full wave rectification, the voltage of a power supply may be full of ripples. A filter capacitor smoothes down these ripples and fills up the voltage” notches” or gaps by discharging its internal stored energy. Thus the circuit connected to it is able to receive a clean DC supply voltage.
To Block DC:
In general you must have now understood what is a capacitor? But there are still numerous different complicated ways through which a capacitor may be configured. Hopefully you will get to read them in my forth coming articles.