Power distribution circuit for use in a portable telecommunications device
AssigneeNokia Corporation
InventorBarry Rowland
Life of this patent
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Abstract
A power distribution circuit for use in a personal telecommunications device comprises a switched mode power supply configured to convert an input voltage and current from an energy source into an output voltage and current, a plurality of series-connected charge storage components arranged to be charged by the output voltage and a charge balancing circuit configured to substantially equalise voltages across each of the charge storage components, wherein the charge balancing circuit comprises a charge pump.
Claims16
A power distribution circuit for use in a portable telecommunications device comprising:
- a switched mode power supply configured to convert an input voltage and current from an energy source into an output voltage and current;
- a plurality of series-connected charge storage components arranged to be charged by the output voltage;
- a charge balancing circuit comprising a charge pump configured to substantially equalise voltages across each of the charge storage components.
A portable telecommunications device including a battery and a power distribution circuit comprising:
- a switched mode power supply configured to convert an input voltage and current from the battery into an output voltage and current;
- a plurality of series-connected charge storage components arranged to be charged by the output voltage;
- a charge balancing circuit comprising a charge pump configured to substantially equalise voltages across each of the charge storage components.
A method of distributing power in a portable telecommunications device comprising:
- converting an input voltage and current from an energy source into an output voltage and current using a switched mode power supply;
- charging a plurality of series-connected charge storage devices by the output voltage;
- substantially equalising voltages across each of the charge storage devices, using a charge pump to redistribute charge between the charge storage devices.
Dependencies are inferred from the claim text.