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H bridge with IR2110

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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KlausST

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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
 

BradtheRad

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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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