Method for charging wireless headset,charging circuit and charging case
AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorsXuede LV, Jie FAN
Life of this patent
Estimating the term…
Abstract
A charging circuit is provided. The charging circuit includes a protection circuit and a charging control switch connected in series, and a transfer switch. The transfer switch is configured to switch to a first charging circuit by connecting to the protection circuit, and switch to a second charging circuit by connecting to the charging control switch. A maximum charging voltage of the first charging circuit is lower than a maximum charging voltage of the second charging circuit.
Claims20
A charging circuit, comprising:
- a protection circuit and a charging control switch connected in series;
- and
- a transfer switch, configured to switch to a first charging circuit by connecting to the protection circuit and configured to switch to a second charging circuit by connecting to the charging control switch, wherein a maximum charging voltage of the first charging circuit is lower than a maximum charging voltage of the second charging circuit.
A charging case, comprising:
- a charging interface, configured to connect the charging case to a power supply;
- a charging base, configured to place a wireless headset;
- and
- a charging circuit, comprising a protection circuit and a charging control switch connected in series, and a transfer switch;
- wherein the transfer switch is configured to switch to a first charging circuit by connecting to the protection circuit and configured to switch to a second charging circuit by connecting to the charging control switch;
- wherein a maximum charging voltage of the first charging circuit is lower than a maximum charging voltage of the second charging circuit.
A method for charging a wireless headset with a charging case, comprising:
- in response to determining that the wireless headset is placed in the charging case, switching to a first charging circuit by controlling a transfer switch to be connected to a protection circuit, and charging the wireless headset by the first charging circuit, wherein the charging case comprises the protection circuit and a charging control switch connected in series, and the transfer switch;
- and
- in response to detecting that a voltage difference between an output voltage of a power supply and a charging voltage of the wireless headset is greater than a second difference threshold, switching to a second charging circuit by controlling the transfer switch to be connected to the charging control switch, and charging the wireless headset by the second charging circuit;
- wherein a maximum charging voltage of the first charging circuit is lower than a maximum charging voltage of the second charging circuit.
Dependencies are inferred from the claim text.