Battery charge apparatus controlled by detecting charge current with constant charge voltage
Patent 5028860 Issued on July 2, 1991. Estimated Expiration Date: 
January 10, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 10, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCondition responsive battery charging circuit Automatic dual mode battery charger Method of charging batteries and apparatus therefor Battery charger termination circuit Patent #: 4629965 InventorAssigneeApplicationNo. 463127 filed on 01/10/1990US Classes:320/164Detection of current and voltage amplitudeExaminersPrimary: Stephan, Steven L.Assistant: Peckman, Kristine Attorney, Agent or FirmForeign Patent References
International ClassH02J 007/04Foreign Application Priority Data1989-01-20 JPAbstractA nonaqueous secondary battery is charged by a constant voltage. The charging current decreases with time, and, when it becomes smaller than a predetermined reference value, the charging is controlled either by terminating the charging current or by setting it at a very low value. | |
