calculation of dead band

Discussion in 'Homework Help' started by sudharshan.panduranga, Oct 28, 2009.

  1. sudharshan.panduranga

    Thread Starter Active Member

    Apr 10, 2008
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    Hi.....
    Can anyone help to calculate the dead band in sg3525 ic. In need 300ns dead band.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
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  3. sudharshan.panduranga

    Thread Starter Active Member

    Apr 10, 2008
    61
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    is discharge time equivalent to dead band between two PWM pulses??
    is this formula correct? Tdescharge=3RDCt
     
  4. SgtWookie

    Expert

    Jul 17, 2007
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    It doesn't seem to quite work out as 3RdCt.
    Even if Rd=0 Ohms and Ct=1nF, discharge time is still 500nS.

    As long as Ct is discharging, the clock output is high, blanking the outputs.

    See page 7 of the Applications Note I linked to, above, under Oscillator.
     
  5. sudharshan.panduranga

    Thread Starter Active Member

    Apr 10, 2008
    61
    1
    Thanks for reply..,
     
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