Simple Regulated Power Supply Circuit Diagram

12v dc power supply schematics.
Simple regulated power supply circuit diagram. Regulated power supply is an electronic circuit that is designed to provide a constant dc voltage of predetermined value across load terminals irrespective of ac mains fluctuations or load variations. Making a fixed 12v regulator circuit. Regulated power supply block diagram. In case you wanted to achieve a fixed 12v regulated power supply the same configuration could be applied for getting the required results as shown below.
First power supply circuit is built with bd139 one zener diode and a few passive components. This regulated power supply included a transformer t1 a bridge d1 d4 and the 38v dc filtering voltage regulator circuits which consists of c1 c2 r1 r2 r3 q1 and q2. We use the simple zener diode voltage regulator as main ideas and two transistors to increase current to the load at 1a 2a. Simply said it is a power supply that can adjust the output voltage or current.
Adjustable power supply circuit. Each of the schematic is very simple to construct and will function without problems if you respect the maximum power supply ratings. 18v dc power supply using 7818. In the above diagram we can see how an ordinary 7805 regulator ic could be used for creating a fixed 5v regulated output.
What is a variable power supply. 12v bd139 power supply circuit. 5 volts low dc regulator circuits. I want to base the power supply circuit around the lm7805 voltage regulator because it s an easy to find chip that is simple to use.
Designing the power supply.