Showing posts with label supply. Show all posts
Showing posts with label supply. Show all posts

Tuesday, 14 March 2017

Make a Simple 12 Volt 1Amp Power Supply with transformer

Today we are going to make a 12 volt power supply that can supply maximum 1 amp with a simple transformer.
When we require a regulated 12V and 1Amp power supply it is little expensive when you buy it. But it is cheap & easy if you know the right recipe.

Items required:

Things that you require to make this awesome simple power supply are mentioned below:

(1)1N4001 diodes
(2)LM7812
(3)Regulator Transformer  having output of 14v - 35v AC with an output current between 100mA to 1A, depending on how much power you need.
(4)1000uF - 4700uF capacitor
(5)1uF capacitor
(6)Two 100nF capacitors
(7)Jumper wires (You can use simple plain wire as jumper wires)
(8)Heatsink (optional)

Circuit Diagram:


If you want a 5 volt power supply, just simply replace the LM7812 to a LM7805 regulator.

You can check the datasheet of the IC for ready reference.

For 1Amp we require heatsink for the regulator, otherwise it will generate too much heat and possibly will burn out.
However, if you require few hundred milliamps (lower than 500mA) then we don't need heatsink for the regulator. Although it will become slight warm.
Dear friends, simply build this amazing power supply and enjoy.

If you have any further questions please feel free to ask them in comment section,  I will try to answer them all.

Wednesday, 28 May 2014

Make a 12Volt 10Amp, 20Amp, 30Amp, 40Amp variable transformerless electronic SMPS power supply

How to make a 12v 10Amp to 40Amp (ie 10A, 20A, 30A, 40A) transformerless electronic power supply SMPS based at home at very cheap price and compact.



Today we are going to make a 12volt 5volt 10Amp, 20Amp, 30Amp & 40Amp all in one transformerless electronic power supply which is SMPS (switched mode power supply) which can output tremendous amounts of power in a small form factor. They have overload protection as well built right in, and even a 500W model can be made at reasonably priced with high efficiency. The voltage is incredibly stable. Giving nice, clean DC current even at high loads.

For making this such amazing circuit you dont need to be from electrical background or either too many tools as weel even you don't have to invest huge money or you dont need to be very smart one.

Today we are going to simply convert a personal computer power supply to a highly stable , efficient, compact and beautiful electronic transformerless power supply SMPS based.



Actually we can buy a computers power supply at very cheap price or even use a old computer power supply ( you might have one in your backyard.) for this project.

Why we are converting a Computer's power supply to a normal general purpose transformerless electronic power supply because
for the same power supply from market you have to pay a 10 times more than the budget we are going to make and also the high wattage power supply you got from market may dont have overload protection and such high efficiency. Thats why we are making it because it saves our huge money as well we got variousbenifits like stable & clean DC, overload protection, high efficiency.