Linear Voltage Regulator Block Diagram. The control element shunts a part of the current that is produced as a result of the input unregulated voltage that is given to the load. The block diagram of a discrete transistor shunt voltage regulator is given below.
The comparator circuit will compare sample voltage with a reference one. When the pass transistor is operated only at cutoff or at saturation the circuit is referred to as a switching regulator. Source line regulation in the block diagram the input line voltage has a nominal value of 230 volts but in practice here are considerable variations in ac supply mains voltage.
This is the most widely used format for a linear voltage regulator.
Lm 2577 switching voltage regulator circuit diagram is given below. The block diagram of a discrete transistor shunt voltage regulator is given below. A voltage regulator in the regulated power supply is essential for keeping a steady dc output voltage by supplying load regulation as well as line regulation. Source line regulation in the block diagram the input line voltage has a nominal value of 230 volts but in practice here are considerable variations in ac supply mains voltage.
