H - Electricity – 02 – J
Patent
H - Electricity
02
J
H02J 7/04 (2006.01) H02J 7/00 (2006.01)
Patent
CA 2144332
A battery charger is provided which automatically controls the charging process independent of individual battery con struction or temperature. Control of the charging process is achieved by periodically interrupting the charging current, determin- ing resistance-free voltage of the battery in fixed intervals after interruptions of current, and comparing the resistance-free voltage with a reference voltage. Reference voltage is automatically determined for each recharging subject by analyzing the change in re- sistance-free voltage with respect to time during an initial, constant current period to locate certain characteristic points indicative of the onset of overcharge. The charging current is reduced as necessary, so that the resistance free voltage does not exceed the reference voltage and significant overcharge is avoided.
Charles Douglas
Ettel Victor Alexander
Hohercak Jan
Nor Jiri K.
Soltys Joseph V.
Edison Source
Inco Limited
Smart & Biggar
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