Digital buck-boost conversion circuit and method of operating the same
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jul 4, 2013
app pub date -
Sep 11, 2012
filing date -
Dec 29, 2011
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Abstract
A digital buck-boost conversion circuit includes an analog-to-digital converter configured to convert an output voltage signal into a digital signal, a pulse period control block configured to output a pulse period control signal based on degrees of scattering at different frequencies of the digital signal, a pulse generation block configured to output a pulse based on the pulse period control signal, and a buck-boost converter configured to convert the pulse into the output voltage signal.
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