7805 And 7905 Voltage Regulator Circuit. Lm78xx series are from national semiconductor. 78xx series are design for positive and 79xx series are for negative voltage regulator.
A voltage regulator ic maintains the output voltage at a constant value. The output current of this ic can go up to 1 5a but the ic suffers from heavy heat loss hence a heat sink is recommended for projects that consume more current. In our case the 7805 ic is an iconic regulator ic that finds its application in most of the projects.
Vr1 for adjustable volt output vr2 for adjustable volt output.
7805 7812 7905 etc. 7805 7812 7905 etc. The output current of this ic can go up to 1 5a but the ic suffers from heavy heat loss hence a heat sink is recommended for projects that consume more current. To regulating low voltage most used device is one single ic.