Phase error compensation in battery cell voltage measurement systems
AssigneeRenesas Electronics America Inc.
InventorAnthony John ALLEN
Life of this patent
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Abstract
Systems and methods for compensating phase errors in battery cell voltage measurement systems is generally described. The method can include identifying a plurality of time constants corresponding to a plurality of filter circuits connected to a plurality of battery cells. The method can further include determining, based on the plurality of time constants, a plurality of sampling times for the plurality of filter circuits. The method can further include sampling voltages from the plurality of battery cells according to the plurality of sampling times to compensate phase errors among the voltages being sampled from the plurality of battery cells.
Claims20
A method comprising:
- identifying a plurality of time constants corresponding to a plurality of filter circuits connected to a plurality of battery cells;
- determining, based on the plurality of time constants, a plurality of sampling times for the plurality of filter circuits;
- and
- sampling voltages from the plurality of battery cells according to the plurality of sampling times to compensate phase errors among the voltages being sampled from the plurality of battery cells.
A semiconductor device comprising:
- a controller configured to:
- identify a plurality of time constants corresponding to a plurality of filter circuits connected to a plurality of battery cells;
- determine, based on the plurality of time constants, a plurality of sampling times for the plurality of filter circuits;
- and
- a circuit configured to:
- sample voltages from the plurality of battery cells according to the plurality of sampling times to compensate phase errors among the voltages being sampled from the plurality of battery cells.
A system comprising:
- at least one battery cell;
- a controller configured to:
- identify a plurality of time constants corresponding to a plurality of filter circuits connected to the at least one battery cell;
- determine, based on the plurality of time constants, a plurality of sampling times for the plurality of filter circuits;
- and
- a circuit configured to:
- sample voltages from the at least one battery cell according to the plurality of sampling times to compensate phase errors among the voltages being sampled from the at least one battery cell.
Dependencies are inferred from the claim text.