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  1. Replies
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    hello everyone i am building the below amp based...

    hello everyone
    i am building the below amp based on this thread , but i will put two daughter boards, one for the protection board and the other for the amp ucd drive.

    i will change the...
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    smd version

    hello all, the smd version of this amp with protection . the eagle file is for eagle 9 onward. old eagle will not open the pcb project , have fun all

    the files have refused to upload . but you can...
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    hi all ,can i use irf6218 with irf540n , instead...

    hi all ,can i use irf6218 with irf540n , instead of irf9540n ?
    irf6218 seeems to have better parameters .
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    hello microsim . i have updated schematic as per...

    hello microsim . i have updated schematic as per the recomendation , is all o.k ?72517252
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    thanks for the replies silvio and microsim . the...

    thanks for the replies silvio and microsim . the smps i drew it from my existing smps which has worked well , i just added the pfc side and adjusted the gate drive to be like the above 2k smps with...
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    hi all i have finished drawing my version of smps...

    hi all i have finished drawing my version of smps with pfc. based on the above pfc , it will be about 1,200 wts , i will use irfp 460 fets .
    your views and comments are highly welcomed and...
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    thanks silivio , i have seen it

    thanks silivio , i have seen it
  8. Thread: SMPS with PFC

    by stewin
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    hi andrew . did you manage to make your smps work...

    hi andrew . did you manage to make your smps work succesful with the pfc? please post photos and your experience on its power.
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    hi silivio , in the video ,wayuk used a black...

    hi silivio , in the video ,wayuk used a black core for input inductor, my email is stevekamala@gmail.com
  10. Replies
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    hi all . below is the original schematic of this...

    hi all . below is the original schematic of this project i managed to translate it . have fun all :cool: :D:

    72377238
  11. hi silvio , how many turns did you use and can...

    hi silvio ,
    how many turns did you use and can ee16 be used in trifiliar winding with those type of insulated wire , as a halfbridge gdt ?
  12. hi all , who has developed further this amp?

    hi all , who has developed further this amp?
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    like which colour and size of core sir?

    like which colour and size of core sir?
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    hello there norazmi , long time man welcome back....

    hello there norazmi , long time man welcome back. i am trying to in-cooperate pfc with my smps , because i dont use regulated smps , at times when mains voltage is at 210vac the output voltage is...
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    hi Silvio thanks for the reply . Will a irfp...

    hi Silvio thanks for the reply .

    Will a irfp 460 lc work it has 20amps ?
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    what is the value of q4 and q3 in the pfc stage?

    what is the value of q4 and q3 in the pfc stage?
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    thanks all for this topic it was helpfull

    thanks all for this topic it was helpfull
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    hi silvio . meaning that the fan runs slow but at...

    hi silvio . meaning that the fan runs slow but at hotter temperatures the fan runs very fast?
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    thanks silivio , now i am thinking to in...

    thanks silivio , now i am thinking to in cooperate it into the smps instead of the amp.
    but is it possible to use a fet like irf540 or tip41 instead of the darlington transistor?
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    hi silivo ,thanks for the reply . which is better...

    hi silivo ,thanks for the reply . which is better between the 2 circuits .
    i wanted to use ntc 10k but the 12volts i wanted to use +/-45vlts from the amps power supply .
    do you have or please...
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    smd version

    hi all , just finished the fully smd version . please check if there are any errors .

    also i have added a relay for on delay and dcp also over current protect is on .
    where should I add the over...
  22. apex has an interesting class td amplifier too ...

    apex has an interesting class td amplifier too

    714471457146714771487149715071517152

    have fun all:D:D
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    hi all crew , i saw apex td/hd 1800 and wanted to...

    hi all crew , i saw apex td/hd 1800 and wanted to go the td/hd way, until the output graph measures were posted :ambivalence:::SD
    i remembered stability issues i faced with hi voltage class d amps...
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    use this schematic below by jlester 7091

    use this schematic below by jlester

    7091
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    Sticky: very lovely and nice layout , after assembling it...

    very lovely and nice layout , after assembling it please post pictures and results.
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