Charging system and charging method for terminal and terminal
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorsChen TIAN, Jialiang ZHANG
Life of this patent
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Abstract
A charging system for a terminal, a charge method, and a terminal are provided. The charging system includes a power adapter and the terminal. The terminal includes a battery, a fast charging circuit, a voltameter and a comparator circuit. The fast charging circuit applies the voltage with a pulsating waveform to the battery and acquires a battery voltage threshold value. The voltameter adjusts a reference voltage based on the battery voltage threshold value. The comparator circuit outputs a reverse signal to the fast charging circuit when a battery voltage reaches the reference voltage. The fast charging module adjusts a charging state through the power adapter.
Claims23
A charging system for a terminal, comprising:
- a power adapter, configured to convert an input alternating current (AC) power to an output voltage with a pulsating waveform and provide the output voltage with the pulsating waveform to the terminal;
- the terminal comprising:
- a battery;
- a fast charging circuit, configured to apply the voltage with the pulsating waveform to the battery and acquire a battery voltage threshold value, adjust a reference voltage based on the acquired battery voltage threshold value and configured to send the adjusted reference voltage to a comparator circuit;
- and
- the comparator circuit, configured to output a reverse signal when a battery voltage reaches the adjusted reference voltage outputted from the fast charging circuit, and configured to send the reverse signal to the fast charging circuit,
- wherein the fast charging circuit adjusts a charging state through the power adapter by way of communicating with the power adapter.
8-10. (canceled)
A terminal, comprising:
- a battery;
- a fast charging circuit, configured to apply voltage with a pulsating waveform outputted by a power adapter to the battery, configured to acquire a battery voltage threshold value, and configured to adjust a reference voltage based on the acquired battery voltage threshold value, wherein the power adapter is configured to convert an input alternating current (AC) power into the voltage with the pulsating waveform and provide the voltage with the pulsating waveform to the terminal;
- and
- a comparator circuit, configured to output a reverse signal when a battery voltage reaches the adjusted reference voltage outputted from the fast charging circuit, and configured to send the reverse signal to the fast charging circuit, wherein the fast charging circuit adjusts a charging state through the power adapter by way of communicating with the power adapter.
18-20. (canceled)
A charging method for a terminal, the terminal comprising a battery,
- a fast charging circuit, and a comparator circuit, the method comprising:
- the power adapter converting an input AC power to output voltage with a pulsating waveform and providing the voltage with the pulsating waveform to the terminal;
- the fast charging circuit applying the voltage with the pulsating waveform to the battery and acquiring a battery voltage threshold value, and adjusting a reference voltage output to the comparator circuit based on the battery voltage threshold value;
- the comparator circuit outputting a reverse signal when a battery voltage reaches the adjusted reference voltage output from the fast charging circuit, and sending the reverse signal to the fast charging circuit;
- and
- the fast charging circuit adjusting a charging state through the power adapter by way of communicating with the power adapter.
27-29. (canceled)
Dependencies are inferred from the claim text.