Circuit Diagram Of Zener Diode As Voltage Regulator. Zener diodes have voltage values from less than 2 volts to several hundred volts and they can dissipate power ranging from 0 25 to 50 watts or more. The zener diode produces a stable reference voltage across the load which fulfills the criteria of regulator requirement.
And b the simplest equivalent circuit. Let s take a zener diode of 6 8v then the output voltage v out v z v be 6 8v 0 7 6 1v. Zener diode voltage regulator circuit.
A voltage regulator circuit should keep the load voltage constant in spite of changes in its input voltage or load current and temperature.
A typical zener diode for general electronic circuits is the 500mw bzx55 series or the larger. Figure 4 a a zener diode voltage regulator circuit diagram. As long as the supply voltage v is constant the current in thner current drops to zero and we is resistor is constant and is shared between the zener and the load. The op amp voltage regulator circuit consists of a non inverting amplifier with a fixed reference voltage at the non inverting input.
