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  1. Replies
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    Powersoft is the worst company in the world when...

    Powersoft is the worst company in the world when it comes to technical support and service.

    I have 5 (T7) amplifiers setting here, becasue that stupid company refuses to support.

    Good luck
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    I think repairing this amplifier will require you...

    I think repairing this amplifier will require you to do the below

    1- Determine where is the problem exactly, in the power supply section? in the amplifier section? in both?
    2- Either way you have...
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    Lets start with some high quality pictures of the...

    Lets start with some high quality pictures of the internals of the amplifier
  4. I also would suggest that you start building your...

    I also would suggest that you start building your prototype, because simulations are tricky sometimes.
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    Any updates on this?

    Any updates on this?
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    Did you try to go down to RFmin = 10Khz

    Did you try to go down to RFmin = 10Khz
  7. Hello SSL certificate installed, moved to a...

    Hello

    SSL certificate installed, moved to a better hosting.

    Please advice if you notice any difference
  8. The most direct question comes to mind is going...

    The most direct question comes to mind is going regulated or unregulated SMPS, Then you will figure out witch topology is needed.

    However, a SMPS with those many outputs is not going to be simple...
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    @Res That means your SMPS is not running...

    @Res

    That means your SMPS is not running properly, and I believe that you still have a lot of work to do.

    Good luck
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    Yes, that makes sense, but optimal point where Fs...

    Yes, that makes sense, but optimal point where Fs = Fr, thats my own opinion.

    Thanks
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    @ Res I am not sure if thats the reason for...

    @ Res

    I am not sure if thats the reason for the semi sinusoidal waveform, in my case I have almost perfect sinusoidal wave form at the Cr without connecting any resistors to it (when the SMPS is...
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    @Res Very good results. Could you please...

    @Res


    Very good results.

    Could you please confirm the below points, because I am little confused?

    In one of your videos, I saw that you have almost a sine wave shown on your oscilloscope....
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    @ xuantunt...

    @ xuantunt

    Turning a DIY product into a commercial product without permission?

    Your account is disabled now, you wont be able to join again.

    Thanks Silvio
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    You need to pay attention to those Ebay chips. ...

    You need to pay attention to those Ebay chips.

    But also you have to be aware that L6599A will NOT work if its not fully assembled, Trying to power it up from external power supply will be waste of...
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    I think that the design tip talking about two...

    I think that the design tip talking about two different ICs, L6599 & L6699 not L6599A or L6599

    and that makes huge sense when you are using different chip.

    Hope that helps.
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    Nice work as usual Silvio

    Nice work as usual Silvio
  17. Hello You can post your questions without any...

    Hello

    You can post your questions without any issues.

    You are welcomed.
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    @Res_SMPS I would appreciate your help if...

    @Res_SMPS


    I would appreciate your help if you can give me transformer turns ratio for +-22VDC output & the TL431 regulator resistors values, I am facing some challenges


    Thanks
  19. I had a 1200W version as attached, but its out of...

    I had a 1200W version as attached, but its out of production at the moment as I am very busy developing other projects.

    I dont recommend the chines option at all, the connex is your best choice...
  20. Sticky: Well done Silvio, Great work as usual Really...

    Well done Silvio, Great work as usual

    Really appreciated
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    Welcome back! long time..

    Welcome back! long time..
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    Generating that number of output voltages with...

    Generating that number of output voltages with that PCB is a huge challenge.

    I also don't understand your idea behind the variable output voltages, i don't see a regulator.

    I think more work is...
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    Nice work indeed

    Nice work indeed
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    Thats one very good reason why you get 50-55C in...

    Thats one very good reason why you get 50-55C in idle.
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    @ Yoosef 10 Years ago with my first attempt to...

    @ Yoosef

    10 Years ago with my first attempt to build a SMPS, I built that circuit, and it worked fine, it was my first regulated SMPS.

    But I never completed a regulated SMPS, at least in the...
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