Patent ReferencesElectric regeneration apparatus and method for driving a load Battery charger for charging a plurality of batteries Electronic battery charger device and method Battery charger for a portable wireless telephone set having means for tricklingly charging the battery with an increased current during a stand-by period of the telephone set Charger for batteries of different type Unique computer power system with backup power High-speed battery charging device and a control circuit therefor Fault detector for a plurality of batteries in battery backup systems NiCd/NiMH battery charger Patent #: 5523668 InventorsAssigneeApplicationNo. 734072 filed on 10/21/1996US Classes:320/124, SEQUENTIAL CHARGING OR DISCHARGING OF BATTERIES OR CELLS320/104, Vehicle battery charging320/108, Charger inductively coupled to cell or battery320/119, With individual charging of plural batteries or cells320/155Time controlExaminersPrimary: Tso, Edward H.Attorney, Agent or FirmForeign Patent References
International ClassH01M 010/46Foreign Application Priority Data1995-10-19 JPAbstractA battery charging unit is provided with a charge controlling unit which is designed to perform at least one of rest mode operating function which causes to rest charging for respective battery, groups and discharge mode operating function which causes to discharge electric power from the respective battery groups in addition to charge mode operating function for the respective battery groups, the battery charging unit controls charging for the respective battery groups through the charge controlling unit while repeating at least two modes including the charging mode among the charging mode, rest mode and discharge mode in a predetermined time cycle and further performs a mutual control between the respective battery groups so that at least one battery group is placed in the rest mode in a predetermined sequence during the operation thereof, thereby, drawbacks of a conventional pulse like charging and burp charging, which are suitable for a quick charging but requires a large instantaneous charging current which causes the size increse of the charging unit and the electric circuit concerned, are eliminated. | |