Contents
What is transistor shunt regulator?
A transistor shunt regulator circuit is formed by connecting a resistor in series with the input and a transistor whose base and collector are connected by a Zener diode that regulates, both in parallel with the load. The figure below shows the circuit diagram of a transistor shunt regulator.
How does a power regulator work?
A voltage regulator generates a fixed output voltage of a preset magnitude that remains constant regardless of changes to its input voltage or load conditions. It compares the output voltage with a precise reference voltage and adjusts the pass device to maintain a constant output voltage.
How does a shunt regulator work?
The shunt regulator works by providing a path from the supply voltage to ground through a variable resistance (the main transistor is in the “bottom half” of the voltage divider).
What is the difference between shunt and series regulator?
Following are main difference between shunt voltages regulator and series voltages regulator Shunt voltage regulator has good voltage regulation even at high load currents. Series voltage regulator has not so good voltage regulation at high load currents. In the shunt voltage regulator the output DC voltage is constant.
What purpose does a voltage regulator serve?
A voltage regulator is an electrical device whose sole purpose is to maintain a constant output voltage. It provides the desired output voltage regardless of any change in the input voltage or load conditions. Electronic circuits are dependent on voltage regulators since they require a stable voltage supply to avoid damage. How does it work?
What is a negative voltage regulator?
Negative Voltage Regulators A voltage regulator keeps a voltage at a defined stable value. Just like a voltage regulator for positive voltages, a negative voltage regulator can hold a negative voltage. Other information on voltage regulation available.