We have designed a dual rail (1.2V and 3.3V) power module for our device with a following specifications DC IN 12-24VDC, DC OUT 1.2V/15A and 3.3V/20A.
PCB is 2 layer design. Design done in Protel/Altium.
We do not have much experience with SMPS, so results are somewhat below expectations.. Power module is making kind of "hissing" noise ...
Skills: electrical engineering, integrated circuit, digital, electronics, circuit design