Electronic Circuits and Diagram-Electronics Projects and Design

• Share
• Tweet

• Tweet

The regulator may be constructed through any of the three or a combination of any of the three given below.

• Zener diode Voltage Regulator
• Discrete transistor Voltage Regulator
• Integrated circuits Voltage Regulator

All voltage regulators must have a stable voltage reference source which is provided by a special type of diode operated in reverse breakdown called, a breakdown diode, or Zener diode.

The primary function of a voltage regulator is to maintain a constant dc output volt­age. However, it also rejects ac ripple voltage that is not removed by the filter. The regulator may also include protective functions such as short-circuit protection, current limiting, thermal shutdown, or over-voltage protection.