• Recent Forum Posts

    rahulrahulll

    smps +- 22 v from atx pc supply

    sir-i have basic idea electronics--i have made amplifier, linear regulated ps, audio crossover,subwoofer filter, active crossover etc-----BUT----i just

    rahulrahulll Today, 04:38 AM Go to last post
    Silvio

    smps +- 22 v from atx pc supply

    Hello rahul, welcome to diysmps.

    You need to read the safety information before attempting to build an smps. There safety precautions to

    Silvio Yesterday, 11:14 AM Go to last post
    Silvio

    Car SMPS Project

    What can I say? well you need 4 fets for full bridge and 4 gate drives more complicated as it seems. If you are willing then try it see what happens.

    Silvio Yesterday, 10:50 AM Go to last post
    rahulrahulll

    smps +- 22 v from atx pc supply

    i have a transformer core from atx pc power supply-toroid core from pc power supply-----

    i need a schematic for smps +-22 v dc from 240

    rahulrahulll Yesterday, 07:15 AM Go to last post
    badboy_6120

    Car SMPS Project

    the 500W is before the transformer saturation and is that situation all mosfets heat normal

    Full brige does not suffer from staircase saturation

    badboy_6120 Yesterday, 05:16 AM Go to last post
    Silvio

    Car SMPS Project

    The reason for all this has to be found. Start tracing the signal where is it stopping. if its from the IC then try to change it, decouple the supply

    Silvio Yesterday, 03:51 AM Go to last post
    badboy_6120

    Car SMPS Project

    the last video I uploaded was from the gates of mosfets at the same time
    when I connect the load one side of primary's mosfets gate voltage drops

    badboy_6120 06-20-2018, 09:01 PM Go to last post
    Silvio

    Car SMPS Project

    @Badboy

    What you did not post is with the probes at the gates with the inverter on load. If you have a disturbed gate drive on load you

    Silvio 06-20-2018, 08:45 PM Go to last post
    badboy_6120

    Car SMPS Project

    Sorry about the previous video, there was a ground issue in the measurements
    here's the right one :



    Turn's out that the

    badboy_6120 06-20-2018, 06:51 AM Go to last post
    badboy_6120

    Car SMPS Project

    Here's the PCB that I'm using for this project:

    badboy_6120 06-20-2018, 05:21 AM Go to last post
  • diysmps

    by Published on 03-28-2013 10:22 PM

    Quote Originally Posted by lavindoo View Post
    Mr ... how to know ir2117 work well ... I am building a class H amp volt dc step-up using ir2117 ... on the negative rail
    ...