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.
The 780X and 790X are not 2A rated devices. Try the LT1085 series devices.
Unless you incorporate series pass transistors...The 780X and 790X are not 2A rated devices. Try the LT1085 series devices.
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?
True, but that's such a bad idea I always forget about that. The pass transitors then have no current limit protection. Power supplies that don't have current limit protection are fuses.....Unless you incorporate series pass transistors...
You still have not said what the input voltage is.I need +5 -5 V as mentioned before. 2 A required at both supplies.
|Thread starter||Similar threads||Forum||Replies||Date|
|C||Dual polarity regulated power supply... problem||Power Electronics||19|
|AC Power Supply - Regulated||Power Electronics||6|
|E||AC - DC regulated power supply with TRIAC.||Power Electronics||19|
|H||Dual power supply 30 0 30 volt||Power Electronics||3|
|Designing linear power supply with regulated current and voltage||Power Electronics||64|
by Jake Hertz
by Jake Hertz
by Aaron Carman