Brandon Braun
New member
i was wanting to build a pretty simple SMPS power supply for my amp, but i need the power to be taken directly from the wall and not from a beefy power transformer.....also this would be for cost and size reasons as seeing how expenisve and large a 400-500 watt transformer can be. i've been doing some research behind all the different topologies of the SMPS supplies and initially i was drawn to a push pull configuration because of the ability to get any output voltage i wanted at whatever polarity i desired, plus the fact that usually these designs are implemented in medium power applications, like what i need. the only problem is, i don't know where i can get an IC that will switch each mosfet for the circuit on and off 180 degrees out of phase, but with a dead time between each switch....everything i've seen so far you have to order like 1000 of the IC's in order to get any....so that's what threw a push pull configuration out the window for me...instead i decided to go with a typical buck boost converter that inverts the polarity at the output....i plan on plugging this thing into the wall, with the appropriate safety measures of course
...i know that if i select my components correctly, the typical buck boost topology can handle plenty of power, but will it take the rectified wall voltage ok?
...i know that if i select my components correctly, the typical buck boost topology can handle plenty of power, but will it take the rectified wall voltage ok?