Linear Voltage Regulator Diagram. The input voltage should be atleast more than 2v from the rated value like for lm7805 we should atleast provide 7v. The basic linear regulator a linear regulator operates by using a voltage controlled current source to force a fixed voltage to appear at the regulator output terminal see figure 1.
The control circuitry must monitor sense the output voltage and adjust the current source as required by the load to hold the output voltage at the desired. Drawbacks of voltage linear regulators. Linear voltage regulators also called ldos or low dropout linear regulators use a transistor controlled by a negative feedback circuit to produce a specified output voltage that remains stable despite variations in load current and input voltage.
The input can be upto 40 volts and it s output can be adjusted from 2 volts to 37 volts.
Positive linear voltage regulator circuit we have designed a positive linear voltage regulator circuit using 7805 ic. The control circuitry must monitor sense the output voltage and adjust the current source as required by the load to hold the output voltage at the desired. Linear voltage regulators also called ldos or low dropout linear regulators use a transistor controlled by a negative feedback circuit to produce a specified output voltage that remains stable despite variations in load current and input voltage. Practical example for regulator circuits.
