Hbridge using IR2110 not working at 220V DC

[suri007]

Hi,

we are implementing a DC motor speed controller using Full H bridge and IR2110 drivers.

The circuit works good for 12V , but if we wish to control a 220V DC load the circuit is not working.

The high side drivers (S1 and S3) of 2 IR2110's are always ON, eventhough we give inputs to S1 and S4 (forward direction).

Gate resistor used is 10ohm and boot strap capacitor of 1uf/10uf is used.

Please help me solve the issue, why at higher DC voltage the circuit is not working

Regards,
Suresh

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One more point to add, the same circuit if tested in half bridge configuration works fine at 220V DC .

I am not able to figure out the problem, please hlep

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I am using a PWM frequency of 16kHZ

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I am attaching the circuit please check and let me know what wrong did i do, and whthe circuit is not working for 220V DC

 

[u7karsh]

have a look at this link if it helps..
https://www.vsholding.com/datasheets/7147 H-driver All voltage.pdf