Mobile phone battery pack with a power-saving function
AssigneeHouston Audio Manufacturing Company Limited
InventorsRaico Hing Wah Huen, Shu Kai Lee
Life of this patent
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Abstract
A mobile phone battery pack has a body housing a plurality of rechargeable battery cells and an energy storage device for electrical connection to said mobile phone. A switch connects the energy storage device to the battery cells. A microprocessor-based controller periodically closes the switch to enable charging of the energy storage device by the battery cells and opens the switch to disconnect the battery cells and to enable discharging of the energy storage device to power the mobile phone in a standby mode.
Claims12
A battery pack for a mobile phone, which battery pack comprises a body, a plurality of rechargeable battery cells and an energy storage device provided within the body for electrical connection to said mobile phone, a switch connecting the energy storage device to the battery cells, a microprocessor-based controller for operating the switch in a first state to enable charging of the energy storage device by the battery cells and in a second state to enable discharging of the energy storage device to power said mobile phone, and a sensor provided for the controller to monitor the charging condition of the energy storage device and, in response, to maintain the charging condition of the energy storage device by operating the switch relatively longer or more frequently in the first state than in the second state.
A battery pack for a mobile phone, which battery pack comprises a body, a plurality of rechargeable battery cells and an energy storage device provided within the body for electrical connection to said mobile phone, a switch connecting the energy storage device to the battery cells, and a microprocessor-based controller for operating the switch in a first state to enable charging of the energy storage device by the battery cells and in a second state to enable discharging of the energy storage device to power said mobile phone, wherein the battery cells are arranged to be connected to said mobile phone by a first path comprising the switch and by a second path comprising a second switch which is also to be operated by the controller, said first path being provided for the battery cells to supply power to the energy storage device and said mobile phone for operation in a standby mode, said second path being provided for the battery cells to supply power to only said mobile phone for operation in a busy mode.
Dependencies are inferred from the claim text.