Voltage Regulator Circuit

Description

A voltage regulator is a circuit that creates and maintains a fixed output voltage, irrespective of changes to the input voltage or load conditions. Voltage regulators (VRs) keep the voltages from a power supply within a range that is compatible with the other electrical components.

This voltage regulator device may get damaged if there is any deviation from the fixed rate. The unregulated (variable) power supply gets converted into constant DC by this circuit. With the help of a voltage regulator DC, the unregulated output will be fixed to a constant voltage. The circuit is made up of linear voltage regulator 7805 along with capacitors. IC 7805 is a DC-regulated IC of 5V.

This voltage regulator circuit IC is very flexible and is widely employed in all types of circuits like a voltage regulator. It is a three-terminal device and is mainly called input, output, and ground. Pin diagram of the IC 7805 is shown in the diagram. In the circuit diagram, C1 is the filter capacitor while C2 is the bypass capacitor. The electrolytic polarized capacitors are employed for this purpose. For the purpose of filter capacitors normally 10mfd value of the capacitor is used.