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US 11,056,896 B2Granted
Terminal and device
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorsJialiang Zhang, Shiming Wan, Jiada Li, Jun Zhang, Chen Tian, Shebiao Chen
Life of this patent
Estimating the term…
Abstract
A terminal and a device are provided. The terminal includes a charging interface and a first charging circuit. The first charging circuit is coupled with the charging interface, and is configured to receive an output voltage from the adapter via the charging interface and apply the output voltage to both ends of multiple cells connected in series in the terminal to charge the multiple cells.
Claims16
A terminal, comprising:
- a charging interface;
- a first charging circuit, coupled with the charging interface, and configured to receive an output voltage from an adapter and apply the output voltage directly to both ends of multiple cells connected in series in the terminal to charge the multiple cells without voltage converting;
- a second charging circuit comprising a step-up circuit, the step-up circuit having a first end coupled with the charging interface and a second end coupled with the multiple cells,
- wherein the step-up circuit is configured to receive the output voltage of the adapter via the charging interface, step up the output voltage of the adapter to a second voltage, and apply the second voltage to both ends of the multiple cells for charging;
- wherein the output voltage of the adapter is received by the second charging circuit being less than an overall voltage of the multiple cells, the second voltage being greater than the overall voltage of the multiple cells;
- and
- wherein the first charging circuit is operable in a quick charging mode, the second charging circuit is operable in a normal charging mode, and a charging speed of the terminal in the quick, charging mode is higher than the charging speed of the terminal in the normal charging mode;
- an equalization circuit coupled with the multiple cells, the equalization circuit is configured to equalize voltages among each cell of the multiple cells, wherein the multiple cells comprises a main cell and at least one secondary cell, the equalization circuit comprises at least one load each connected at both ends of each of at least one secondary cell to consume the power of the secondary cell, such that the power of the secondary cell is consistent with the main cell;
- and
- a control unit configured to:
- perform two-way communication with the adapter to determine a charging mode;
- and
- switch between the first charging circuit to charge the multiple cells through the first charging circuit upon determining that the terminal will be charged with the quick charging mode and the second charging circuit to charge the multiple cells through the second charging circuit upon determining that terminal will be charged with the normal charging mode.
10 more elements
A device, comprising:
- a charging interface;
- a cell unit comprising multiple cells connected in series;
- a first charging circuit, coupled with the charging interface and configured to receive an output voltage from a charging device and apply the output voltage directly to both ends of the cell unit for charging the multiple cells;
- a second charging circuit, coupled in parallel with the first charging circuit and configured to receive the output voltage from the charging device via the charging interface, step up the received output voltage, and apply a step-up output voltage to the both ends of the cell unit for charging the multiple cells, wherein the first charging circuit is capable of being operated in a quick charging mode, the second charging circuit is capable of being operated in a normal charging mode, and a charging speed of the device in the quick charging mode is greater than the charging speed of the device in the normal charging mode;
- an equalization circuit, coupled with the multiple cells and configured to equalize voltages among each cell of the multiple cells, wherein the multiple cells comprises a main cell and at least one secondary cell, the equalization circuit comprises at least one load each connected at both ends of each of at least one secondary cell to consume the power of the secondary cell, such that the power of the secondary cell is consistent with the main cell;
- and
- a control unit, configured to perform two-way communication with the adapter to determine a charging mode, and switch between the first charging circuit to charge the multiple cells through the first charging circuit upon determining that the terminal will be charged with the quick charging mode and the second charging circuit to charge the multiple cells through the second charging circuit upon determining that terminal will be charged with the normal charging mode.
4 more elements
Dependencies are inferred from the claim text.