Hello friends, I hope you all are doing great. Today, I am going to share the new Voltage Regulator Library for Proteus . Almost every circuit needs a steady supply voltage, and for decades the simplest way to get one has been a three-legged linear regulator : feed it 9 V or 12 V and it gives a clean 5 V or 3.3 V. The LM7805 and the LM317 are the two most famous, found on Arduino boards, in power supplies and in nearly every student's first project. They are easy to use, but they hide one trap that catches beginners again and again: the heat. Updates Voltage Regulator Library for Proteus Latest version: V1.0 (November 2026, this tutorial) Other component libraries: C945 Transistor · PC817 Optocoupler · Relay Module · Resistor · 5 mm LED · Designer Colour LED · Push Button · Active Buzzer · ...