H-Bridge output fails with capacitive load.HELP!!!!!

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mossses

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hi everyone!!! i just built a modified smps inverter rated 600watts.the problem am facing now is that when i plug in rechargeable led flash light,my ir2110 get damage but work with appliance with transformer.Am using sg3525 to control two ir2110 at d H-bridge side with irfp460 mosfet.i didnt apply any filter at the final output.switching frequency(dc to ac side)50HZ
 
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Show the schematic diagram of circuit.
 

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