"David Looser" wrote in
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"Arny Krueger" wrote in message
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"Anton Gÿsen" wrote in message

Anton Gÿsen wrote:

The power input on the DAC requires 1.5 amps AC.

Forgot to mention, it's 12 volts.

Designing power supplies is a cookbook process.

The transformer you linked to is vast overkill, but also
inadequate. You don't need a 6 amp transformer for a
DAC. Even 1.0 amp might be overkill. If you want to build a power supply
that puts out 12
volts, you will probably need a power transformer that
puts out more than 12 volts. The extra voltage will be
taken up by losses, particularly in the regulator.
You must have missed the "AC" in the OPs post.


No.

The good news is that a full-wave rectifier will turn 12 VAC into about 17
volts DC, but the bad news is that the voltage drop across the regulator
plus a reasonable allowance for low line voltages will pretty well eat up
the 5 volt advantage.