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US 7,734,317 B2Granted
Battery management
AssigneeQUALCOMM Incorporated
InventorsJagrut V. Patel, Vyungchon Choe
Life of this patent
Estimating the term…
Abstract
Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve an efficient power source for prolonged battery life. The power source may include first and second batteries, and a power management module configured to operate each of the first and second batteries in a pulse current discharge mode while supplying continuous current to a load.
Claims22
A power source, comprising:
- first and second batteries;
- means for determining a current required by a load;
- means for determining, based on the required current, whether to operate each of the first and second batteries in a pulse current discharge mode or to continuously couple the first and second batteries to the load;
- means for operating each of the first and second batteries in the pulse current discharge mode while supplying continuous current to the load when no voltage differential exists between the first and second batteries and when the current required by the load exceeds a threshold;
- and
- means for continuously coupling the first and second batteries to the load when no voltage differential exists between the first and second batteries and when the current required by the load is below the threshold.
3 more elements
A wireless communications device, comprising:
- a processor configured to support wireless communications, the processor being further configured to operate in a traffic state or an idle state;
- first and second batteries;
- and
- a power management module configured to determine whether the processor is operating in the traffic state or the idle state, and, based on the operating state of the processor, the power management module being further configured to determine whether to operate each of the first and second batteries in a pulse current discharge mode or to continuously couple the first and second batteries to the processor,
- wherein the power management module is further configured to operate each of the first and second batteries in the pulse current discharge mode while supplying continuous current to the processor when no voltage differential exists between the first and second batteries and when the wireless communications device is in the traffic state, and
- wherein the power management module is further configured to continuously couple the first and second batteries to the processor when no voltage differential exists between the first and second batteries and when the wireless communications device is in the idle state.
3 more elements
A power source, comprising:
- first and second batteries;
- and
- a power management module configured to determine a current required by a load, and, based on the required current, the power management module being further configured to determine whether to operate each of the first and second batteries in a pulse current discharge mode or to continuously couple the first and second batteries to the load,
- wherein the power management module is further configured to operate each of the first and second batteries in the pulse current discharge mode while supplying continuous current to the load when no voltage differential exists between the first and second batteries and when the current required by the load exceeds a threshold, and
- wherein the power management module is further configured to continuously couple the first and second batteries to the load when no voltage differential exists between the first and second batteries and when the current required by the load is below the threshold.
2 more elements
Dependencies are inferred from the claim text.