designing a variable single output DC to DC

[BelAir]

Hi,

I am a new here. I have a few enquiries regards designing a variable single output DC to DC convereter, please:

- is there any way to generate a single output can be swing/ variable  from -5  to + 5 vdc base on the load requirements, input voltage +/-15 or +/-10 doesn't matter here as i can choose any! Also the maximum current must be 500mA.

- i have found plenty of schematics for dual outputs -/+ve but doesn't come as a single output.

- I have also used dual  inverteing and no inverting op amp and linked the output to POT to provide me a single output from -5 to +5 but with low current 10mA!!.

Your help and efforts are really appreciate.

Cheers,
BelAir

[nctnico]

Look for a class-D amplifier. You'll need some filtering at the output though.

[BelAir]

Thanks indeed  nctnico ..

[matseng]

I have also used dual  inverteing and no inverting op amp and linked the output to POT to provide me a single output from -5 to +5 but with low current 10mA!!.

Have you seen the OPA541 and its siblings?

The OPA541 is a power operational amplifier capable of operation from power supplies up to ±40V and delivering continuous output currents up to 5A. Internal current limit circuitry can be user-programmed with a single external resistor, protecting the amplifier and load from fault conditions.

That might be an easy solution for your requirements. The 541 is a little bit too beefy for you but there are lower powered versions of it.