Power supply

anand.usic

New Member

• Aug 29, 2009

• #1

Hi,
my request is very simple i want to fabricate a POWER SUPPLY of my own and want to keep it for my own purpose for checking simple circutis. i need +12 , -12, +5, -5 DC outputs. can anyone suggest me a simple circuit.

 

E

Electronworks

New Member

• Aug 29, 2009

• #2

Please read these articles. They will help:

**broken link removed**

 

MrDEB

Well-Known Member

• Aug 29, 2009

• #3

simple, look at the 78xx 79xx voltage regulators

the 7812 and 7805 for the positive supplies and the 7912 and 7905 for negative supply
then you need a transformer big enough. each regulator is good for 1 amp with lots of heat sinking
can't get much simpler

 

anand.usic

New Member

• Aug 30, 2009

• #4

thanks for the reply guys....
i'll try to construct.

 

K

KMoffett

Well-Known Member

• Aug 30, 2009

• #5

There a lot of articles on converting computer ATX power supplies to bench supplies for +/-12V and +/-5V.
Google: ATX bench supply

ken