|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||320/153 ; 320/144 ; 324/430|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 32 인용 특허 : 4|
A charging technique (200) charges a battery pack (102) by taking into account the additional internal circuit impedance of the battery pack. An optimum pack voltage value for the battery pack is calculated (208) based on the rated internal cell voltage as well as the charge current and the internal battery pack circuitry impedance. The battery pack can now be charged such that the internal battery cell voltage is maintained at the rated voltage throughout the charging process. The optimum pack voltage is also updated (220) to account for variations in t...
[ What is claimed is:] [1.] A method for charging a battery pack having internal battery cells characterized by a rated cell voltage, rated charge current, and the battery pack also having battery pack circuitry, including the steps of:determining an impedance value of the battery pack circuitry; andcalculating an optimum pack voltage for the battery pack based on the determined impedance value of the battery pack circuitry, the rated charge current, and the rated cell voltage; andcharging the battery pack with the rated charge current until the optimum ...