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Thread: Audio smps 700w (IR2153)

  1. #131
    PFC should be set at 380VDC as minimum as going lower than that requires redesign of the loop.

    And the most important thing to remember is to test at 100VAC as this is the point that shows if your PFC is working or not.

    Also, the point when you go from no load to full load is very critical as it will confirm your entire design success.

    Hope that helps
    www.diysmps.com & www.Micro-Audio.com

  2. #132
    diysmps Senior Member
    Join Date
    Dec 2010
    Location
    Kenya
    Posts
    492
    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 pfc .below the schematic of my previous smps which i have been using

    gtG smps lp small bottom.bmpgtG smps lp small pcb artwork.pdfgtG smps lp small components full.pdfgtG smps lp small pcb full.jpggtG smps lp small schematic.jpggtG smps lp small schematic.pdf
    Attached Images Attached Images
    Last edited by stewin; 04-23-2020 at 12:19 PM.

  3. #133
    diysmps Senior Member
    Join Date
    Dec 2010
    Location
    Kenya
    Posts
    492
    Quote Originally Posted by MicrosiM View Post
    PFC should be set at 380VDC as minimum as going lower than that requires redesign of the loop.

    And the most important thing to remember is to test at 100VAC as this is the point that shows if your PFC is working or not.

    Also, the point when you go from no load to full load is very critical as it will confirm your entire design success.

    Hope that helps
    hello microsim . i have updated schematic as per the recomendation , is all o.k ?gtG lp smps fb ver 1 dip drive schematic.pdfgtG lp smps fb ver 1 dip drive schematic.gif

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