Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1995-06-07
1996-12-31
Nappi, Robert
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 32, H02J 704, H01M 1044
Patent
active
055897576
ABSTRACT:
Apparatus and method for charging a battery, wherein a charging voltage is applied to a battery. The charging voltage depends on a base charging voltage which is continually adjusted in the direction that provides a more optimal level of charge acceptance. The direction of a more optimal charge acceptance is determined by adjusting the charging voltage in steps of predetermined magnitudes such that the steps provide an upper pair and a lower pair of spaced-apart charging levels. The current at each stepped voltage is measured, and used to calculate first and second current differentials corresponding to the upper and lower pairs. The base charging level is incremented or decremented to adjust the base charging level in the direction that provided the smaller differential. As the process is repeated, the charging level continually moves closer to a charging voltage level that minimizes the differential thereby providing a more optimal charge acceptance.
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GNB Battery Technologies Inc.
Law Patrick B.
Nappi Robert
LandOfFree
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