Method for charging a power device of a portable device using a current-adaptive process
AssigneeSimplo Technology Co., Ltd.
InventorsTai-Hung Chen, Shih-Chou Chen
Life of this patent
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Abstract
In the charging process of a power device of a portable device, a control unit or firmware of the power device dynamically acquires the status of the charging current and the charging voltage, and by incrementing the charging current, the power device correctly obtains maximum charging current affordable by a charger without overly drawing the current from the charger that causes overly low charging voltage. Such current-adaptive charging process optimizes the charging process.
Claims10
A method for charging a power device of a portable device using a current-adaptive process, wherein the power device is charged by a charger and the method comprises steps:
- as the charger is charging the power device, detecting a charging voltage and a charging current of the power device and determining whether the charging voltage is above a predetermined voltage value;
- if the charging voltage is above the predetermined voltage value and the charging current is yet to reach a maximum current value, increasing the charging current an increment amount;
- if the charging voltage is below the predetermined voltage value, decreasing the charging current the increment amount and charging the power device with the updated charging current;
- and
- if the charging voltage is above the predetermined voltage value and the charging current reaches the maximum current value, charging the power device with the charging current.
A power device, comprising:
- a charging end for being connected to a charger;
- a power storage unit for storing power when the charging end is connected to the charger;
- and
- a control unit, connected between the charging end and the power storage unit, the control unit utilized for detecting a charging voltage and a charging current, for increasing the charging current an increment amount when the charging voltage is above a predetermined voltage value and the charging current is yet to reach a maximum current value, for decreasing the charging current the increment amount and charging the storage unit with the updated charging current when the charging voltage is below the predetermined voltage value, and for charging the power storage unit with the charging current when the charging voltage is above the predetermined voltage value and the charging current reaches the maximum current value.
Dependencies are inferred from the claim text.