Auto-tuning power supply

Auto-tuning power supply

An apparatus for and method of automatically tuning a voltage regulation control loop for a digitally controlled switch mode power supply is provided. The method includes determining a frequency response of the power stage and calculating an open loop transfer function from the frequency response. A...

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Hauptverfasser: HAGEN MARK DAVID, DAVOUDI ALI
Format: Patent
Sprache:eng
Schlagworte:
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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creator HAGEN MARK DAVID
DAVOUDI ALI
description An apparatus for and method of automatically tuning a voltage regulation control loop for a digitally controlled switch mode power supply is provided. The method includes determining a frequency response of the power stage and calculating an open loop transfer function from the frequency response. A correlated metric is defined based at least in part on the open loop transfer function, wherein the correlated metric is correlated to an expected disturbance in regulated output voltage from the digitally controlled switch mode power supply due to a change in load. New values for the open loop transfer function are calculated for a range of controller compensation parameters to minimize the correlated metric. These values are then applied to the digital controller for use in controlling the power supply.
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subjects CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
title Auto-tuning power supply
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