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  1. #1
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    H bridge with IR2110

    hi, i try to design h bridge with ir2110 driver, but when i measure the voltage/current load , i found transient waveform plus there is phase hift between them and i don't know the reason of this . also i need help to how i fix deadtime of ir2110 in ltspice?

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  2. #2
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    Re: H bridge with IR2110

    Hi,

    I don't understand what is shown on the scope and what signals these are on the schematic..

    But one thing I can say:
    Your analog circuit makes no sense.
    Buffering a signal .... then dividing it by 10.000 .... then multiplying it with a factor of 1.000 ....
    Just causes to degrade signal quality and increase noise, drift and other errors.

    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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  3. #3
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    Re: H bridge with IR2110

    There are self oscillating half/full bridge inverters with builtin dead time and can vary frequency with simple components including a potentiometer.

    https://www.mouser.com/ProductDetail...uxs6IVXg%3D%3D

    https://www.mouser.com/ProductDetail...kmrzv%2Ffi0%3D



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  4. #4
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    Re: H bridge with IR2110

    Your schematic has at least one inductor in the current path. An inductor tends to generate current during dead time. It could affect V-versus-A phasing.

    Abrupt shut-off of an inductor often creates spikes which might damage components. A free-wheeling diode might help.



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