Texas Instruments Corporation

Brian Allen

Bertan Bakkaloglu

John Houldsworth

Gary Lee Stirk

Umar Jameer Lyles

Brian Lum-Shue-Chan

Systems and methods are provided for monitoring a voltage. A level shifter is configured to generate a current proportional to the voltage of the battery cell. A delta-sigma modulator is configured to convert the current into a first density modulated bitstream representing the voltage of the battery cell. A first reference source is configured to provide a second density modulated bitstream representing a first threshold voltage. A first comparator is configured to compare the first density modulated bitstream and the second density modulated bitstream.

Voltage monitoring using bitstream signal processing

A low power communication encoding method is provided. A first piece of encoded information and a second piece of encoded information are generated based on a comparison of a current transmission record and a previous transmission record. Then transmission data is selected based on which of the first and second pieces of encoded information will result in transmitting a fewer number of logical lows. Ultimately, the transmission data is transmitted on an open drain data line.

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Grant, FL, United States of America

Brian Allen