发明授权
- 专利标题： Apparatus and method for dual source, single inductor magnetic battery charger
- 专利标题（中）： 双电源单电感充电器的设备和方法
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申请号： US11240954申请日： 2005-09-30
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公开(公告)号： US07560898B1公开(公告)日： 2009-07-14
- 发明人: Bruno Kranzen , Luan Vu , Jonathan R. Knight , Larry Bradley
- 申请人： Bruno Kranzen , Luan Vu , Jonathan R. Knight , Larry Bradley
- 申请人地址： US CA Santa Clara
- 专利权人： National Semiconductor Corporation
- 当前专利权人： National Semiconductor Corporation
- 当前专利权人地址： US CA Santa Clara
- 代理机构： Darby & Darby P.C.
- 代理商 Matthew M. Gaffney
- 主分类号： H01J7/00
- IPC分类号： H01J7/00 ; G05F1/00
摘要：
A voltage regulation and battery charging system is provided. The system may include a switching regulator selection control circuit, two switching regulator controller circuits, two power transistors, a common synchronous transistor, and a common LC circuit. The two switching regulator controller circuits may synchronously switch the two power transistors and the one common synchronous transistor. One of the switching regulator controller circuits may receive a voltage from an AC adapter and the other may receive a voltage from a USB port. Further, the switching regulation selection control circuit selects which of the two switching regulator controller circuits controls the regulation of the system output voltage employing the common LC filter.
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