Power supply design question

[infinia]

SMPS is an opportunity for mess things up.

In my culture we have a saying "nothing ventured, nothing gained"
luckily we can change things around or return to very old school in electronics

my 1st switcher was a DC/DC push-pull to adapt a chip amp NE540 +/- 30V supply to 12V inputs, yes it worked sort of. but I went on to build many more esp. off line designs. Now you can buy them assembled and tested for a couple of bucks.

 

[Pafi]

In my culture we have a saying "nothing ventured, nothing gained"
luckily we can change things around or return to very old school in electronics

my 1st switcher was a DC/DC push-pull to adapt a chip amp NE540 +/- 30V supply to 12V inputs, yes it worked sort of. but I went on to build many more esp. off line designs. Now you can buy them assembled and tested for a couple of bucks.

What gain do you see here? Spending money and time to save 100 g of aluminium? In best case.

Me as an engineer start design from requirements. No requirement stated by the topic starter indicates the neccessity of an SMPS. What he has is perfectly enough, so whatever venture gives no gain. But the effort and cost is unavoidable.

I designed and built many dozens of ClassD designs, amplifiers and PSUs from 1W to 3kW, but I don't think it is the best solution for every situation.