Autonomous battery equalization circuit
May 27, 2019. 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 ReferencesCharging system and method for multicell storage batteries Current balancing for battery strings Multiple voltage battery charge balancing and load protecting device Battery equalization circuit for a dual voltage charging system Battery charger for charging a plurality of batteries Non-dissipative battery charger equalizer Battery voltage equalizer circuit Switched capacitor system for automatic battery equalization Power supply and method of protecting batteries therein Method and device for charge exchange between a plurality of energy stores or converters connected in series Patent #: 5821729 InventorApplicationNo. 320689 filed on 05/27/1999US Classes:320/118, With discharge of cells or batteries320/103, ONE CELL OR BATTERY CHARGES ANOTHER320/128With chargingExaminersPrimary: Tso, Edward H.Assistant: Toatley, Gregory J. Jr. International ClassH02J 007/00AbstractA battery equalization circuit for equalizing charge between at least first and second series connected batteries includes a switching circuit and a resonant circuit. Each battery has a positive end and a negative end, where the positive end of the second battery is coupled to the negative end of the first battery at a common node. The switching circuit is connectable to (i) the positive end of the first battery at a positive node, and (ii) the negative end of the second battery at a negative node; and the resonant circuit is connectable between the switching circuit and the common node of the batteries, wherein the switching circuit is adapted to alternately couple the resonant circuit in parallel with the first and second batteries such that a DC current component flows between the first and second batteries through the resonant circuit as a function of a charge imbalance therebetween.Other References
| |
