Digital device with rechargeable battery and recharging method thereof
First Claim
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1. A digital device capable of recharging a rechargeable battery comprising:
- a consuming current detect unit for detecting a consuming current input to the digital device;
a control unit for generating a control signal based on the consuming current and a battery recharging current;
a recharging current detect unit for detecting the battery recharging current as the battery is recharged; and
a recharging control unit for regulating the current to the rechargeable battery in proportion to the control signal output from the control unit and the battery recharging current detected by the recharging current detect unit.
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Abstract
A digital device capable of recharging a rechargeable battery, comprising a consuming current detect unit for detecting a consuming current input to the digital device through an adapter, a control unit, a recharging current detect control unit for detecting the battery recharging current as the battery is recharged, and a recharging control unit for regulating the consuming current to the rechargeable battery in proportion to a pulse width modulation control signal output from the control unit and the battery recharging current detected by the recharging current detect control unit.
17 Citations
34 Claims
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1. A digital device capable of recharging a rechargeable battery comprising:
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a consuming current detect unit for detecting a consuming current input to the digital device; a control unit for generating a control signal based on the consuming current and a battery recharging current; a recharging current detect unit for detecting the battery recharging current as the battery is recharged; and a recharging control unit for regulating the current to the rechargeable battery in proportion to the control signal output from the control unit and the battery recharging current detected by the recharging current detect unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for controlling recharging current of a rechargeable battery used in a digital device comprising:
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detecting a consuming current input to the digital device; detecting a battery recharging current as the battery is recharged; generating a control signal based on said detected consuming current and said detected battery recharging current; and regulating the recharging current to the rechargeable battery in proportion to the control signal and the detected battery recharging current. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 34)
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20. A method for recharging a rechargeable battery in a digital device comprising:
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determining whether a voltage of the rechargeable battery is greater than 5 volts, and if so, determining that the battery is partially discharged and performing a recharge operation according to a state of the digital device being used; wherein performing a recharge operation according to the state of the digital device being used comprises; determining a consuming current; outputting a pulse width modulation control signal according to a magnitude of the consuming current; and supplying a recharging current according to the pulse width modulation control signal to the rechargeable battery for recharging. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification