We use the simple zener diode voltage regulator as main ideas and two transistors to increase current to the load at 1a 2a.
Simple regulated power supply circuit diagram.
5 volts low dc regulator circuits.
It will keep a stable voltage when it.
Each of the schematic is very simple to construct and will function without problems if you respect the maximum power supply ratings.
Designing the power supply.
18v dc power supply using 7818.
Regulated power supply block diagram.
This component will give a stable output voltage of 5v up to 1 5 a.
12v bd139 power supply circuit.
Adjustable power supply circuit.
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.
Simply said it is a power supply that can adjust the output voltage or current.
12v dc power supply schematics.
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.
What is a variable power supply.
First power supply circuit is built with bd139 one zener diode and a few passive components.
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.
In the above diagram we can see how an ordinary 7805 regulator ic could be used for creating a fixed 5v regulated output.