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H bridge with IR2110

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maimahmoud93

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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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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
 

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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