Mobile terminal and device and method for Charging same
AssigneeZte Corporation
InventorsZhengwei Han, Nirong Wang
Life of this patent
Estimating the term…
Abstract
A mobile terminal, and a device and method for charging the same are provided. A power input of a Voltage Bus (VBUS) of a Universal Serial Bus (USB) interface in the mobile terminal is connected to a switch capable of switching off and switching on the power input of the VBUS. During charging, the mobile terminal controls the switch to control an input current to generate a specific current waveform; and a charging device is internally provided with a circuit for detecting the specific current waveform. If the circuit detects the specific current waveform generated by the mobile terminal, an output voltage of the charging device is increased to charge the mobile terminal. The charging device increases the charging power of the USB interface.
Claims17
A method for charging a mobile terminal, wherein a power input switch is connected to a power input of a Voltage Bus (VBUS) of a Universal Serial Bus (USB) interface in the mobile terminal and is adaptive for turning on or off the VBUS, and a charging device for charging the mobile terminal comprises a circuit capable of detecting an output current waveform of the charging device, the method comprising:
- during charging, controlling, by the mobile terminal, the switch to control an input current to generate a specific current waveform;
- and
- when the circuit detects the specific current waveform generated by the mobile terminal, increasing an output voltage of the charging device to charge the mobile terminal.
A mobile terminal, comprising:
- a control switch, a charging management circuit and a battery, wherein
- the control switch is configured to turn on or off a current input of a Voltage Bus (VBUS) to generate a specific current waveform;
- and
- the charging management circuit is configured to receive the VBUS current passing through the control switch to charge the battery.
A device for charging a mobile terminal, configured to charge the mobile terminal, wherein the device comprises an Alternating Current (AC)/Direct Current (DC) converter and a current waveform detection circuit, wherein an output voltage of the AC/DC converter is adjustable, and the current waveform detection circuit is configured to generate a logic level according to a specific waveform of an output current, to control the output voltage of the AC/DC converter.
Dependencies are inferred from the claim text.