Equipment to be charged, charging method and device of equipment to be charged, electronic equipment and charging system

A charging method and a technology to be charged, which are applied in charging/discharging current/voltage regulation, battery circuit devices, circuit devices, etc., can solve the problems that the charging capacity of the charger cannot be fully utilized, and achieve the effect of fast charging

Active Publication Date: 2015-03-25
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the device to be charged is charged with a fixed charging current regardless of the charging cur

Method used

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  • Equipment to be charged, charging method and device of equipment to be charged, electronic equipment and charging system
  • Equipment to be charged, charging method and device of equipment to be charged, electronic equipment and charging system
  • Equipment to be charged, charging method and device of equipment to be charged, electronic equipment and charging system

Examples

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Example Embodiment

[0050] In the prior art, when a USB charger is used to charge a device to be charged, the device to be charged is charged according to a preset fixed charging current value. However, in practical applications, if the output current of the charger is large, for example, the output current is 1800mA, and the preset charging current of the device to be charged is 600mA, that is, the rated output current value of the charger is greater than the default charging current of the device to be charged At this time, the charging device is still charging at the default charging current, which cannot make full use of the charger’s rated output current capability, and the charging efficiency is low.

[0051] In the embodiment of the present invention, the device to be charged adjusts the charging current by obtaining the current rated output current value of the charger, instead of only charging with a fixed preset charging current value. When the corresponding charging current value is great...

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PUM

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Abstract

The invention discloses equipment to be charged, a charging method and device of the equipment to be charged, electronic equipment and a charging system. The method includes the steps that when a signal, representing a current rated output current value, transmitted by a charger is received, the current rated output current value of the charger is obtained; according to the current rated output current value of the charger, a preset charging current value of the equipment to be charged is adjusted, and charging is performed at an adjusted charging current value. By the adoption of the equipment to be charged, the charging method and device of the equipment to be charged, the electronic equipment and the charging system, under the condition that the output current of the charger is large, the charging capacity of the charger can be sufficiently utilized for achieving rapid charging.

Description

technical field [0001] The invention relates to the field of charging, in particular to a device to be charged, its charging method, device, electronic device and charging system. Background technique [0002] In the existing national standard chargers, the output voltage of the charger is 5V, and the output current varies according to the nominal value of the charger, generally between 300mA and 1800mA. [0003] Existing USB national standard chargers generally include four ports: a VBUS port, a DP port, a DM port and a GND port, wherein the VBUS port is the output port of the charger, and the DP port and the DM port are two signal ports of the USB interface. When the charger is used to charge the device to be charged, such as a mobile terminal such as a mobile phone, the device to be charged judges whether the current charger is a national standard charger by detecting whether the DM and DP ports of the charger are short-circuited. When it is determined that the current c...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/441H02J7/007Y02E60/10
Inventor 陈良金
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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