Design of transformerless DC power supply 12V 5A.

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Chetan_Jadhav

Joined Mar 2, 2017
52
hello,
I want to make a DC power supply with output 12V and 5A.
i have made power supplies before using big bulky transformer ,78xx regulator etc.but now i want to a transformer less power supply. I have observed and read that ballast can be used to increase the output power hence current. but i dont know how to use it. also I am very curious to know that how values of different components are calculated so any type of help will be very useful. Thanks!!!
 

bertus

Joined Apr 5, 2008
20,227
Hello,

Did you read the User Agreement ?

In there the following is given:

Restricted topics
. The following topics are regularly raised however are considered "off-topic" at all times and will result in Your thread being closed without question:

Any kind of over-unity devices and system
Devices designed to electrocute or shock another person
LEDs to mains
Any kind of jammers (ie - Phone jammers)
Rail guns and high-energy projectile devices
Transformer-less power supplies

If You come across a thread or post discussing any of the above topics please report the thread so We can close, and if necessary remove, the offending thread/posts.

Bertus
 
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