MOBILE TERMINAL, DC-CHARGING POWER SOURCE ADAPTOR, AND CHARGING METHOD
First Claim
1. A method for charging a mobile terminal, the method comprising:
- determining, by the mobile terminal, whether two differential data pins of a USB interface thereof are shorted, upon detecting an external device being inserted into the USB interface;
in response to that the two differential data pins are shorted, detecting, by the mobile terminal, whether the inserted external device is a DC-charging power source adaptor, and in response to that the inserted external device is the DC-charging power source adaptor, detecting, by the mobile terminal, voltage of a battery core of the mobile terminal; and
if the voltage of the battery core lies in a range [S1, S2] delimited by preset DC-charging thresholds, controlling, by the mobile terminal, according to the current voltage of the battery core, the DC-charging power source adaptor to output charging voltage corresponding to the current voltage of the battery core to DC-charging the battery.
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Accused Products
Abstract
The disclosure discloses a mobile terminal, a DC-charging power source adaptor, and a charging method, where the mobile terminal detects whether two communication pins of a USB interface thereof are shorted, and if an inserted external device is a power source adaptor, then the mobile terminal communicates with the power source adaptor, so that the mobile terminal identifies automatically the type of the externally connected charging device. Also a specialized rapid charging mode is designed for a DC-charging power adaptor, so that a battery being charged routinely is DC-charged at large current using charging voltage output by the DC-charging power source adaptor, and a volt value of the charging voltage is adjusted dynamically to the varying voltage of the battery core.
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Citations
18 Claims
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1. A method for charging a mobile terminal, the method comprising:
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determining, by the mobile terminal, whether two differential data pins of a USB interface thereof are shorted, upon detecting an external device being inserted into the USB interface; in response to that the two differential data pins are shorted, detecting, by the mobile terminal, whether the inserted external device is a DC-charging power source adaptor, and in response to that the inserted external device is the DC-charging power source adaptor, detecting, by the mobile terminal, voltage of a battery core of the mobile terminal; and if the voltage of the battery core lies in a range [S1, S2] delimited by preset DC-charging thresholds, controlling, by the mobile terminal, according to the current voltage of the battery core, the DC-charging power source adaptor to output charging voltage corresponding to the current voltage of the battery core to DC-charging the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile terminal, comprising:
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a battery configured to store electrical energy; a USB interface configured to be engaged with an external device; and a microprocessor configured to determine whether two differential data pins of the USB interface are shorted, upon detecting an external device being inserted into the USB interface; and
in response to that the two differential data pins are shorted, to detect whether the inserted external device is a DC-charging power source adaptor;
in response to that the inserted external device is the DC-charging power source adaptor, to detect voltage of the battery core, and if the voltage of the battery core lies in a range [S1, S2] delimited by preset DC-charging thresholds, then to control, according to the current voltage of the battery core, the DC-charging power source adaptor to output charging voltage corresponding to the current voltage of the battery core to DC-charging the battery. - View Dependent Claims (12)
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13. A method for charging a mobile terminal, the method comprising:
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switching, by a DC-charging power source adaptor, two communication pins in a charging interface of the DC-charging power source adaptor from being shorted by default to being disconnected under a condition that the charging interface of the DC-charging power source adaptor is inserted into a mobile terminal; receiving, by the DC-charging power source adaptor, controlling information for indicating to perform charging through the communication pins; and determining, by the DC-charging power source adaptor, a value of charging voltage to be output to the mobile terminal, and DC-charging a battery of the mobile terminal based on the value of the charging voltage; wherein the value of the charging voltage corresponds to the voltage of the battery core of the mobile terminal, and the battery core lies in a range [S1, S2] delimited by preset DC-charging thresholds when determining, by the DC-charging power source adaptor, the value of charging voltage to be output to the mobile terminal. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification