Title:
CHARGING CIRCUIT, TERMINAL AND CHARGING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/019447
Kind Code:
A1
Abstract:
The present disclosure relates to a charging circuit, a terminal and a charging method, wherein same fall within the technical field of electronic circuits. The charging circuit comprises: a control circuit, and a step-down circuit connected to the control circuit, wherein the control circuit is configured to acquire a feedback signal for indicating a generation frequency of a control signal, generate the control signal according to the feedback signal and send the control signal to the step-down circuit; and the step-down circuit is configured to acquire an input voltage and the control signal, carry out step-down processing on the input voltage according to the control signal and output an obtained output voltage to a battery, wherein an output current corresponding to the output voltage is greater than an input current corresponding to the input voltage, and the output voltage is used for determining the generation frequency. The present disclosure can increase an output current, so that an input current is smaller while the output current is larger. In this way, the charging efficiency of a battery can be improved by means of the larger output current, and a charging line can be thinner where the input current is smaller, thereby reducing the cost of the charging line.
Inventors:
FAN JIE (CN)
LI ZHIWU (CN)
LI ZHIWU (CN)
Application Number:
PCT/CN2018/106199
Publication Date:
January 30, 2020
Filing Date:
September 18, 2018
Export Citation:
Assignee:
BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)
International Classes:
H02J7/00; H01M10/44; H02J1/02
Foreign References:
| CN207518328U | 2018-06-19 | |||
| CN102684481A | 2012-09-19 | |||
| US9866113B1 | 2018-01-09 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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