What does Periodic Steady state mean with regard to a Buck Converter ? Does it mean the normal operation ?
Also, From what I read, the net change in the capacitor voltage in the buck converter is 0. Why is it so ? Is it because it becomes constant ?
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asked May 8, 2015 at 15:08
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\$\begingroup\$ Where did you read the statements? \$\endgroup\$– Andy akaCommented May 8, 2015 at 15:21
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\$\begingroup\$ On a course online. \$\endgroup\$– Dallas CarterCommented May 9, 2015 at 6:33
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1 Answer
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Periodic steady state does mean normal operation (which obviously isn't a constant output voltage). The idea is that the dynamics of the converter have settled and all startup transients have settled.
The net change in the capacitor voltage in a buck converter must be zero or else the output voltage would be moving around, which means the circuit wouldn't be working as a DC-DC converter. So yes, I would say it is because the output DC voltage settles to be a constant (with some ripple).
