发明授权
US07498769B1 Apparatus and method for dual mode battery charger with linear and switched control modes based on operating conditions
有权
基于操作条件的线性和开关控制模式的双模式电池充电器的装置和方法
- 专利标题： Apparatus and method for dual mode battery charger with linear and switched control modes based on operating conditions
- 专利标题（中）： 基于操作条件的线性和开关控制模式的双模式电池充电器的装置和方法
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申请号： US11073135申请日： 2005-03-04
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公开(公告)号： US07498769B1公开(公告)日： 2009-03-03
- 发明人: Vladislav Potanin , Elena Potanina
- 申请人： Vladislav Potanin , Elena Potanina
- 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： H02J7/00
- IPC分类号： H02J7/00 ; H02J7/04
摘要：
A circuit for battery charging is provided. The circuit provides a charge current to a battery, and regulates the charge current with either linear regulation or switching regulation, based on operating conditions. In one embodiment, if the input voltage minus the battery voltage is less than a threshold (e.g. 100 mV), linear regulation is employed, and if the input voltage minus the battery voltage is greater than the threshold (e.g. 100 mV), switching regulation is employed. The threshold may be fixed, or the threshold may be adjustable based on die temperature or charge current.
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