Voltage regulator error detection and correction
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United States of America Patent
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Jan 12, 2021
Grant Date -
May 14, 2020
app pub date -
Oct 3, 2019
filing date -
Nov 8, 2018
priority date (Note) -
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Abstract
The disclosure relates to voltage regulators and more specially voltage regulators including error detection and correction mechanisms. Example embodiments include a voltage regulator comprising: an input arranged to receive a trim signal used to specify a target voltage at an output of the regulator; a comparator arranged to compare a voltage derived from the trim signal to the voltage at the output of the regulator; a filter arranged to filter an output of the comparator; a checksum module comprising first and second portions arranged to calculate first and second checksums respectively from a plurality of states associated with the voltage regulator and to provide an error signal equal to the difference between the first and second checksums; and an adjustment module arranged to receive the error signal and adjust one or more of the plurality of states if the error signal is non-zero.
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