Voltage Regulators in Parallel...

[Anthony William Sloman]

On Monday, May 8, 2023 at 2:47:03 AM UTC+10, Cursitor Doom wrote:

On Sun, 07 May 2023 11:21:28, Wanderer<do...@emailme.com> wrote:



Just switch them on one at a time. For example. Two regulators; one\'s on, one\'s off. Each sees a 50% duty-cycle. Expand as needed. Overlapping the on cycles might improve the switching noise
Novel idea.

But not a good one. If you want a switching regulator design a proper one.

--
Bill Sloman, Sydney

 

[piglet]

On 07/05/2023 11:21, Wanderer wrote:
> Just switch them on one at a time. For example. Two regulators; one\'s on, one\'s off. Each sees a 50% duty-cycle. Expand as needed. Overlapping the on cycles might improve the switching noise.

Sounds like you re-invented the multi-phase buck converter. Oft used for
high end cpus in servers and desktops.

piglet

 

[John Larkin]

On Sun, 07 May 2023 17:46:55 +0100, Cursitor Doom <cd@notformail.com>
wrote:

On Sun, 07 May 2023 11:21:28, Wanderer<dont@emailme.com> wrote:



Just switch them on one at a time. For example. Two regulators; one\'s on, one\'s off. Each sees a 50% duty-cycle. Expand as needed. Overlapping the on cycles might improve the switching noise

Novel idea.

Not if they current limit, or share a heat sink.

Realistically, when a 3t reg is insufficient, design something better.
Or split the loads.