AC/DC Power Supply, Switch Mode, 1 Output, 36 W, 18 V, 2 A

hey guys what's up eddie oh here with kissanalog.com well today what i want to do is i want to show what a switch mode power supply for an ac to dc power supply would look like okay i have two evaluation cards here that i'm going to use to demonstrate this and it's gonna be pretty cool i think so we're gonna just get in this video pretty quick i want a lot of the video is gonna be testing and showing signals and showing what these boards do so let me just kind of explain why we might want to have a switchboard power supply we've been looking at this class d power supply right and pretty cool but it has a big old transformer bunch of capacitors there and so you got all this efficiency of the class d amp but then you have a linear power supply and what's you know what's the problem with that well it's a big old transformer for one the other thing is power factor uh the transformer has to