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Charging circuit, terminal and charging method

A charging circuit and charging method technology, applied in battery circuit devices, charging/discharging current/voltage regulation, secondary battery charging/discharging, etc., can solve the problems of slow charging speed, poor user experience, and high cost of charging lines, achieving The effect of increasing output current, reducing cost, and improving charging efficiency

Active Publication Date: 2018-12-11
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • 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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  • Charging circuit, terminal and charging method
  • Charging circuit, terminal and charging method
  • Charging circuit, terminal and charging method

Examples

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Embodiment Construction

[0029] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0030] figure 1 is a structural block diagram of a charging circuit shown according to an exemplary embodiment, and the charging circuit can be applied to a terminal, such as figure 1 As shown, the charging circuit includes: a control circuit 110, a step-down circuit 120 connected to the control circuit 110;

[0031] The control circuit 110 is configured to obtain a feedback signal f...

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Abstract

The invention relates to a charging circuit, a terminal and a charging method, belonging to the technical field of electronic circuits. The charging circuit comprises a control circuit and a step-downcircuit connected with the control circuit. A control circuit configured to acquire a feedback signal indicative of a generation frequency of the control signal, generate a control signal based on the feedback signal, and transmit the control signal to the step-down circuit; The step-down circuit is configured to obtain an input voltage and a control signal, perform step-down processing on the input voltage according to the control signal, output the obtained output voltage to the battery, the output current corresponding to the output voltage is larger than the input current corresponding tothe input voltage, and the output voltage is used for determining the generation frequency. The present disclosure can increase the output current such that the input current is small and the outputcurrent is large, so that the charging efficiency of the battery can be improved by a large output current, and the charging line can be made smaller when the input current is small, thereby reducingthe cost of the charging line.

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 small, resulting in a 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 wire is required, resulting in higher cost of the charging wire. Contents of the invention [0004] In order to solve the problems in related technologies, the present disclosure provides a charging circu...

Claims

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Application Information

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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
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