CHARGING DEVICE AND CONTROL METHOD THEREOF
First Claim
1. A charging device, electrically connected to an external power supply and a rechargeable battery pack, so as to perform a charging procedure of the rechargeable battery pack, wherein the rechargeable battery pack includes at least one battery unit, the charging device comprising:
- a detecting module, used for detecting both the state of charge of the rechargeable battery pack during the charging procedure and a polarization voltage corresponding to the internal resistance of the rechargeable battery pack at different states of charge;
a processing module, electrically connected to the detecting module and generating a current adjusting parameter according to the polarization voltage and the state of charge; and
a charging module, electrically connected among the external power supply, the rechargeable battery pack and the processing module, the charging module receiving the external power supply and adjusting the charging current outputted to the rechargeable battery pack according to the state of charge and the current adjusting parameter, so that the waveform of the polarization voltage conforms to a preset waveform.
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Abstract
The present invention discloses a charging device electrically connected to an external power supply and a rechargeable battery pack, so as to perform a charging procedure of the rechargeable battery pack. The charging device includes a detecting module, a processing module and a charging module, wherein the processing module is electrically connected to the detecting module and the charging module. The detecting module is used for detecting both the state of charge of the rechargeable battery pack during the charging procedure and a polarization voltage corresponding to the internal resistance of the rechargeable battery pack at different states of charge. The processing module generates a current adjusting parameter according to the polarization voltage and the state of charge. The charging module receives the external power supply and adjusts the charging current outputted to the rechargeable battery pack according to the state of charge and the current adjusting parameter.
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Citations
12 Claims
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1. A charging device, electrically connected to an external power supply and a rechargeable battery pack, so as to perform a charging procedure of the rechargeable battery pack, wherein the rechargeable battery pack includes at least one battery unit, the charging device comprising:
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a detecting module, used for detecting both the state of charge of the rechargeable battery pack during the charging procedure and a polarization voltage corresponding to the internal resistance of the rechargeable battery pack at different states of charge; a processing module, electrically connected to the detecting module and generating a current adjusting parameter according to the polarization voltage and the state of charge; and a charging module, electrically connected among the external power supply, the rechargeable battery pack and the processing module, the charging module receiving the external power supply and adjusting the charging current outputted to the rechargeable battery pack according to the state of charge and the current adjusting parameter, so that the waveform of the polarization voltage conforms to a preset waveform. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A control method of a charging device, including:
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detecting the state of charge of the rechargeable battery pack during a charging procedure and the polarization voltages corresponding to the internal resistance of the rechargeable battery pack at different states of charge, wherein the rechargeable battery pack includes at least one battery unit; generating a current adjusting parameter according to the polarization voltage and the state of charge; and adjusting a charging current outputted to the rechargeable battery pack according to the state of charge and the current adjusting parameter, so that the waveform of the polarization voltage conforms to a preset waveform. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification