BATTERY CHARGEDISCHARGE PROTECTION CIRCUIT

专利名称：BATTERY CHARGE/DISCHARGE

PROTECTION CIRCUIT

发明人：Zutao LIU申请号：US12851688申请日：20100806

公开号：US20110287283A1公开日：20111124

专利附图：

摘要：The present invention relates to a battery charge/discharge protection circuitthat protects an associated battery from charge/discharge damage. The

charge/discharge protection circuit includes a first terminal, a second terminal, a charge

over-current detection circuit, a discharge over-current detection circuit, a short circuitdetection circuit, and a PMOS transistor. A drain electrode and a gate electrode of thePMOS transistor are connected to the first terminal and the second terminal respectively.A source electrode of the PMOS transistor is connected to the charge over-currentdetection circuit, the discharge over-current detection circuit and the short circuitdetection circuit, such that when a voltage above an overvoltage threshold is supportedby the charger, the voltage of the source electrode of the PMOS transistor is maintainedabove a negative threshold voltage and the elements in these circuits do not receive sucha voltage output by the charger.

申请人：Zutao LIU

地址：Shanghai CN

国籍：CN

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