Method and apparatus for calculating an average value of an inaccessible current from an accessible current

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United States of America Patent

PATENT NO 9980330
SERIAL NO

15183535

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Abstract

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In a power converter, a circuit determines an average value of an inaccessible current from an average value of an accessible current and a value of the operating duty cycle of the converter. A method of measuring an average value of an inaccessible current from a measured value of a current in a power converter by a duty cycle of a pulse width modulation (PWM) signal representing a duty cycle of the power converter. Coupling a voltage representing the measured value to an input of a low pass filter during a time period (D) and coupling the input of the low pass filter to a reference voltage during a time period (1−D).

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Patent Owner(s)

Patent OwnerAddress
TEXAS INSTRUMENTS INCORPORATEDDALLAS TX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cohen, Isaac Dix Hills, US 179 3018

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