You need a dual (plus and minus) supply if you want plus and minus outputs using simple linear regulators such as the 7805 and 7905. That's readily generated by a center-tapped transformer output winding and a single bridge rectifier.Thanks for the reply. The input supply would be taken from a rectified power supply. But that would be flexible. I can modify the transformer turns to get required voltage for the regulator. Basically i am looking at a single +ve supply as the supply.
Now you added some new info. The latter switching regulator. Does this have a single voltage output or a dual voltage output (like +/- voltage). And also do you need 2 ampere on both output. Or can you settle for less current on the negative supply. It is quite common that the current needed from the negative supply is less than the positive supply.Hi thanks for the replies,
I would like to stick with the switching regulator.
Could someone give some references regarding this?
You still have not said what the input voltage is.I need +5 -5 V as mentioned before. 2 A required at both supplies.
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by Jake Hertz