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Old 27th November 2007, 07:41 AM   #41
Eva is offline Eva  Spain
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Very long dead time produces a characteristic type of distortion. You can make this very obvious by playing a pure tone in the low or midrange area and increasing the volume slowly from 0.
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Old 27th November 2007, 03:24 PM   #42
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Crossover distortion.
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Old 27th November 2007, 05:28 PM   #43
zox2003 is offline zox2003  United States
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I am currently thinking about inverter circuit for IR2011...What would be prefered circuit...Drive it with:

1.LT1016 directly
2.Use LM311 and CD4069
3.Use LM311 and Transistor inverter

Thanks
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Old 27th November 2007, 06:32 PM   #44
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LT1016 and a deadtime circuit to prevent/eliminate shoot through, usually an RCD circuit.
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Old 27th November 2007, 06:37 PM   #45
zox2003 is offline zox2003  United States
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Can you point to example of dead-time circuit.Thanks
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Old 27th November 2007, 06:51 PM   #46
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Search! Itīs all over the class d forum.
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Old 27th November 2007, 07:15 PM   #47
zox2003 is offline zox2003  United States
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Don't you think that I have enuff deadtime internally in IR2011.
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Old 27th November 2007, 07:40 PM   #48
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I havent read the datasheet but i donīt think it has amny internal deadtime what so ever.
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Old 27th November 2007, 07:53 PM   #49
zox2003 is offline zox2003  United States
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IR original design does not have deadtime circuit incorporated in their design at all using IR2011S.

Is it really necessary?
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Old 27th November 2007, 08:01 PM   #50
luka is offline luka  Slovenia
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Hi

It depends on how good are your fets... if they are fast + fast diode then you don't need it, but if you use fets like I did, then you will need it
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