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  1. #21
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    Re: 1.5kw DC to DC Boost Converter Circuit

    on previous picture you can see the noise line running through the signals when voltage feedback is implemented
    May be. Control algorithm and gate signal generation wasn't yet described or addressed at all in this thread. How can we know if it's implemented appropriately?



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  2. #22
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    Re: 1.5kw DC to DC Boost Converter Circuit

    The top signal is HO and Bottom is LO.
    The input voltage to sg3525 and ir2113 ic are 12 volt.
    I can't measure the vgs but clearly on the signals shown you can see the difference.
    What do you mean by voltage offset?

    - - - Updated - - -

    My circuit design is based on Tahmids circuits which he shows on his thread which I posted on the beginning of this thread..
    Sg3525 driving 2x ir2113.



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  3. #23
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    Re: 1.5kw DC to DC Boost Converter Circuit

    Hi,

    For me it's difficult to find out what you mean.
    * you still mix HO and V_gs of high side. These are not the same. .. as already explained in the application note and in the previous posts. If you mean HO, then please write HO.
    * you write "input voltage" this can be logic signals or power supply. If you mean supply, then please write supply

    I can't measure the vgs but clearly on the signals shown you can see the difference.
    We know the difference and we still explained it. The application notes do, too. So what else do you need? Exactly.

    What do you mean by voltage offset?
    Where is the "zero volts line" for each channel in your scope picture?

    Klaus
    Please don´t contact me via PM, because there is no time to respond to them. No friend requests. Thank you.



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