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US 10,256,647 B2Granted
Method for charging a mobile device, mobile device, and charging system
AssigneeHuawei Device (Dongguan) Co., Ltd.
InventorGang Song
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention relate to a charging method, a mobile device, and a charging device. The mobile device includes a battery and a connector, where the connector includes a charging pin and a ground pin. When the charging pin establishes a connection to an output pin of the charging device by using a charging cable or a battery charging stand, the charging pin receives a first current signal transmitted by the output pin of the charging device, and transmits the first current signal to an anode pin of a battery, so as to charge the battery.
Claims23
A system comprising:
- a mobile device comprising an analog switch, a battery, a first charging circuit, a USB port, and a connector, wherein the connector comprises a charging pin and a ground pin;
- a charging device comprising a second charging circuit and an output pin;
- when the mobile device is in connection with the charging device, the charging device is configured to supply a first current signal to the output pin by using the second charging circuit, the charging pin is configured to receive the first current signal transmitted by the output pin of the charging device, the analog switch is configured to connect an anode pin of the battery to the charging pin, and the charging pin is configured to transmit the first current signal to the anode pin of the battery, so as to charge the battery, wherein the charging pin is configured to transmit the first current signal to the anode pin of the battery without using the first charging circuit of the mobile device;
- and
- when the mobile device is disconnected from the charging device and is in connection with a USB device to perform USB charging, the analog switch is configured to disconnect the anode pin of the battery from the charging pin, the analog switch and the first charging circuit are configured to connect the USB port to the anode pin of the battery, an input pin of the first charging circuit is configured to receive a second current signal transmitted by the USB port, wherein the second current signal is smaller than the first current signal, and wherein the mobile device is configured to transmit the second current signal to the first charging circuit, so as to charge the battery through the anode pin of the battery that is coupled to the first charging circuit.
2 more elements
A mobile device comprising:
- an analog switch, a battery, a first charging circuit, a USB port, and a connector, the connector comprises a charging pin and a ground pin;
- when the mobile device is in connection with a charging device, the charging pin is configured to receive a first current signal transmitted by an output pin of the charging device, the analog switch is configured to connect an anode pin of the battery to the charging pin, and the charging pin is configured to transmit the first current signal to the anode pin of the battery, so as to charge the battery, wherein the first current signal is received from a second charging circuit of the charging device, wherein the mobile device is configured to transmit the first current signal at the charging pin to the anode pin of the battery without using the first charging circuit of the mobile device;
- and
- when the mobile device is disconnected from the charging device and is in connection with a USB device to perform USB charging, the analog switch is configured to disconnect the anode pin of the battery from the charging pin, wherein the analog switch and the first charging circuit are configured to connect the USB port to the anode pin of the battery,
- wherein an input pin of the first charging circuit is configured to receive a second current signal transmitted by the USB port, wherein the second current signal is smaller than the first current signal, and
- wherein the input pin of the first charging circuit is coupled to the anode pin of the battery, wherein the mobile device is configured to transmit the second current signal to the first charging circuit, so as to charge the battery through the anode pin of the battery that is coupled to the first charging circuit.
3 more elements
A method for charging a mobile device, the method comprises:
- when the mobile device is in connection with a charging device:
- receiving, by a charging pin of the mobile device, a first current signal transmitted by an output pin of the charging device, wherein the charging device supplies the first current signal by using a second charging circuit;
- connecting an anode pin of a battery to the charging pin;
- and
- transmitting, by the charging pin, the first current signal to the anode pin so as to charge the battery, wherein the charging pin transmits the first current signal to the anode pin of the battery without using a first charging circuit of the mobile device;
- when the mobile device is disconnected from the charging device and is in connection with a USB device:
- disconnecting the anode pin of the battery from the charging pin;
- connecting a USB port of the mobile device to the anode pin;
- receiving, by an input pin of the first charging circuit, a second current signal transmitted by the USB port, wherein the second current signal is smaller than the first current signal;
- and
- transmitting the second current signal, to the first charging circuit, so as to charge the battery through the anode pin of the battery that is coupled to the first charging circuit.
8 more elements
A mobile device comprising:
- a battery comprising an anode pin, the battery configured to be charged through the anode pin;
- a USB port configured to receive a first current signal;
- a charging circuit comprising an input coupled to the USB port and an output configured to output a power received at the USB port at a first current;
- a connector comprising a charging pin and a ground pin, the connector configured to receive a second current signal higher than the first current signal;
- and
- an analog switch configured to couple the anode pin of the battery to the output of the charging circuit or the charging pin of the connector, wherein the analog switch is configured to connect the anode pin of the battery to the charging pin without using the charging circuit when the charging pin receives the first current signal from a charging device external to the mobile device, and wherein the analog switch is configured to connect the anode pin of the battery to the charging circuit when the charging pin is not in connection with the charging device.
3 more elements
Dependencies are inferred from the claim text.