300W AT/PS2 Switching Power Supply

I did a review and teardown of that switch-mode power supply from Pavano Pavano however you want to call it a few days ago and there were quite a few comments about switch mode power supplies versus linear power supplies so for anybody who is unfamiliar with the difference between them I thought today we talked a little bit about that and then we'll take a look at each type on the scope so switch mode power supplies and linear power supplies let's first hit the theory a switching power supply converts your AC line voltage to DC without using a transformer don't worry there's a transformer coming but first it just converts it the high frequency DC is then sent to the regulation circuit okay so first it takes AC line voltage and uses discrete components or n IC to convert it to a very high frequency DC which is then regulated and then it's output now your linear power supply on the other