Electrical power supply having a variable output
Patent 4814631 Issued on March 21, 1989. Estimated Expiration Date: 
March 21, 2006. 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.
March 21, 2006. 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 References 3207966 3249836 3339079 3387194 3459957 3740678 3809978 3875478 Optimum battery reconnect for a field controlled electric vehicle D.C. controller for battery powered electric motor InventorApplicationNo. 06/290773 filed on 08/06/1981US Classes:307/53, Load current division307/71, Series-parallel connection of sources307/81, Predetermined sequence318/139BATTERY-FED MOTOR SYSTEMSExaminersPrimary: Pellinen, A. D.Assistant: DeBoer, Todd E. Attorney, Agent or FirmInternational ClassesB60L 15/04 (20060101)B60L 15/00 (20060101) Foreign Application Priority Data1980-08-06 AUAbstractAn electrical power supply having a variable output, the power supply comprising one pair of sources of e.m.f., these sources being interconnected in parallel, each portion of the parallel circuit comprising the source being connected in series with a diode, a switch interconnecting junction between each source and the diode and a controller sensitive to the requirements of the load connected to the power supply and being adapted to operate switch such that on the switch being open the sources are connected in parallel and on the switch being closed the sources are connected in series. | |
