Charging circuit, terminal and charging method
A charging circuit and circuit technology, applied in battery circuit devices, charging/discharging current/voltage regulation, secondary battery charging/discharging, etc., can solve problems such as slow charging speed, poor user experience, and high cost of charging lines
Active Publication Date: 2020-10-30
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Among them, the low-voltage charging circuit can provide a small charging current, resulting in slow charging speed and poor user experience
The high-voltage charging circuit can provide a large charging current. Although the charging speed can be increased, the larger the charging current, the thicker the charging line is required, resulting in higher cost of the charging line.
Method used
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[0029] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0030] figure 1 It is a structural block diagram showing a charging circuit according to an exemplary embodiment. The charging circuit can be applied to a terminal, such as figure 1 As shown, the charging circuit includes: a control circuit 110, and a step-down circuit 120 connected to the control circuit 110;
[0031] The control circuit 110 is configured to obtain a feedback signal for indicatin...
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The disclosure relates to a charging circuit, a terminal and a charging method, and belongs to the technical field of electronic circuits. The charging circuit includes: a control circuit, a step-down circuit connected to the control circuit; the control circuit is configured to obtain a feedback signal indicating the generation frequency of the control signal, generate a control signal according to the feedback signal, and send the control signal to the step-down circuit. A voltage circuit; a step-down circuit configured to obtain an input voltage and a control signal, step down the input voltage according to the control signal, and output the obtained output voltage to the battery, and the output current corresponding to the output voltage is greater than the input current corresponding to the input voltage , and the output voltage is used to determine the generation frequency. The present disclosure can increase the output current, so that the input current is smaller and the output current is larger, so that the charging efficiency of the battery can be improved through a larger output current, and the charging line can be made thinner when the input current is small, thereby reducing the cost of the charging cable.
Description
Technical field [0001] The present disclosure relates to the technical field of electronic circuits, in particular to a charging circuit, a terminal and a charging method. Background technique [0002] The charging circuit in the terminal is used to cooperate with the charger to efficiently charge the battery in the terminal. [0003] The charging circuit in the related art may be a low-voltage charging circuit or a high-voltage charging circuit. Among them, the charging current that the low-voltage charging circuit can provide is relatively small, resulting in a slower charging speed and poor user experience. The charging current that the high-voltage charging circuit can provide is relatively large. Although the charging speed can be increased, the larger the charging current, the thicker the charging line is required, which leads to higher cost of the charging line. Summary of the invention [0004] In order to solve the problems in the related art, the present disclosure provi...
Claims
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IPC IPC(8): H02J7/00H01M10/44H02J1/02
CPCH01M10/44H02J1/02H02J7/0036H02J7/007H02J7/00304H02J7/0029H02J7/00308H02M3/07H02M1/15H02M1/32H02J2207/20H02J7/00302Y02E60/10H02M1/007H02M3/072G05F1/10H02J7/02H02J7/00
Inventor 范杰李志武
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD