24VAC Application
Posted by: Paul S
on
I have the following power supply requirements:
24VAC input power (20 to 27 VAC)
Output #1: 5VDC @ 500mA
Output #2: 20VDC @ 150mA
The design requires isolation of the ground from primary to secondary. (The 24VAC input has one lead at earth ground and the output circuit also has the low side connected to earth ground. Therefore, if the grounds are connected the full wave retifier is defeated.)
Further, I do not want a seperate winding for the regulator.
Could you recommend a design that would meet these requirements?
Comments
Hello,
Just found this thread from two years ago. Wondering if there are any new chips that can handle this?
Thanks,
Scott
20 VAC min means < 28V minimum input.
Sorry, there are no PI devices recommended for <36 Vdc input.