Importance

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Abstract

An automatic charging and power management device includes a charging control unit and at least one power switching control unit. The charging control unit is connected to a rechargeable battery and an input power source to control the charging operation to the rechargeable battery. The input power source can be a USB-interfaced power source or a rectification transformer based power source. The power switching control unit connects the input power source and is provided with at least one power input terminal, a charging control terminal, a charging voltage terminal, a system actuation switch, a system actuation terminal, a power type terminal, and at least one power output terminal. The charging control terminal and the charging voltage terminal are connected to the charging control unit. The system actuation terminal is actuated on/off by the system actuation switch to generate a system actuation signal. The power type terminal generates an identification signal based on the type of the input power source. The charging control unit is automatically switched between charging the rechargeable battery and supplying an output power through the power output terminal in response to the status of the power input terminal, the system actuation terminal, the power type terminal, and the charging voltage terminal.

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First Claim