Methods and apparatus for managing a battery system
AssigneeSemiconductor Components Industries, LLC
InventorHideo KONDO
Life of this patent
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Abstract
Various embodiments of the present technology may provide methods and apparatus for managing a battery system. The apparatus may provide a power line to connect a battery to a signal converter and a fuel gauge circuit to measure a voltage of the power line, detect noise on the power line, and control operation of a sensor and/or the fuel gauge circuit in response to the detected noise.
Claims20
An apparatus capable of connecting to a battery and a signal converter, wherein the battery and signal converter are connected with a power line and the signal converter generates data according to a sensor, comprising:
- a fuel gauge circuit configured to connect to the power line and receive data from the signal converter, wherein the fuel gauge circuit comprises:
- a memory configured to store a voltage threshold;
- a voltage sensor configured to measure a voltage of the power line;
- a noise detection circuit in communication with the memory and the voltage sensor, wherein the noise detection circuit is configured to:
- compute a change in voltage based on the measured voltage;
- and
- determine a level of noise on the power line based on the computed change in voltage;
- and
- a data processor responsive to the noise detection circuit and configured to:
- process the data based on the level of noise on the power line;
- and
- control at least one of:
- operation of the sensor and the data, based on the level of noise on the power line.
A method for operating a battery system having a power line that connects a battery to a signal converter, wherein the signal converter generates data according to a sensor, comprising:
- detecting noise on the power line comprising:
- detecting a change in voltage on the power line;
- detecting a change in current on the power line;
- comparing the change in voltage to a first noise threshold and a second noise threshold;
- and
- comparing the change in current to a third noise threshold and a fourth noise threshold;
- reporting detected noise on the power line comprising:
- generating a first notification signal if the change in voltage is greater than the first and second noise thresholds;
- and
- generating a second notification signal if the change in current is greater than the third and fourth noise thresholds;
- and
- controlling at least one of the sensor and the data in response to at least one of the first notification signal and second notification signal.
A system, comprising:
- a battery;
- a power line connecting the battery to a signal converter, wherein the signal converter generates data according to a sensor;
- and
- a fuel gauge circuit connected to the power line and configured to:
- receive data from the signal converter;
- measure a voltage of the power line;
- compute a change in voltage based on the measured voltage;
- compute a change in current of the power line based on the measured voltage;
- determine a level of noise on the power line based on the computed change in current and the computed change in current voltage;
- report detected noise on the power line;
- and
- control at least one of the sensor and the data in response to the reported noise.
Dependencies are inferred from the claim text.