About MATLAB Embedded Coder EPWM BLOCK
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Hi Everyone ,
I’m trying to understand deadband structere of Epwm block . I could not understand a basic and simple point deadband time .(I have used Matlab2019b and F28379D Launchapd -200MHz- TBCLK:5ns)
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You can see following figure ,( this is a ‘Modeling Voltage Controller for the DC/DC Buck Converter’
In dead band value were entered as 20.
What is the exact mean of 20 ? I mean This is a counter value of TBCLK according to the following help informations, isn’t it ?
*Actually what is the value of 20 in seconds?
Manythanks
Burak
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Venkatesh Chilapur
2020-9-7
1 个投票
Hi,
It is the count in-terms of TBCLK. In this case you mentioned TBLCK cycle is 5ns.
Hence the deadband time would be 20 * 5ns = 100ns.
That is the amount of time the ePWM-HI and ePWM-LO singals would be offset w.r.t each during the switching action.
HTH,
Regards,
Venkatesh C
2 个评论
Burak Caykenari
2020-9-9
Pablo Acuna
2020-11-6
is the TBCLK 5n (200M) or 20n (50M)?
I understand the launchpad has a X4 preescaler.
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