Charging method, device, charger, device to be charged, and charging system

一种充电方法、充电器的技术，应用在充电维护充电/放电、充电/放电电流/电压调节、电路装置等方向，能够解决无法充分利用充电器充电能力等问题

Active Publication Date: 2017-08-08
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 output voltage regardless of the output voltage of the charger in the above solution, in some cases, the charging capacity of the charger cannot be fully utilized

Method used

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  • Charging method, device, charger, device to be charged, and charging system
  • Charging method, device, charger, device to be charged, and charging system
  • Charging method, device, charger, device to be charged, and charging system

Examples

Experimental program
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Embodiment Construction

[0083] Existing USB national standard charger generally includes four pins: VBUS pin, DP pin, DM pin and GND pin, wherein, VBUS pin is the output pin of charger, DP pin and DM pin These are the two signal pins 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 charger is a national standard charger, the device to be charged is charged according to a preset fixed output voltage. However, since in the above solution, the device to be charged is charged with a fixed output voltage regardless of the output voltage of the charger, in some cases, the charging capability of the charger cannot be fully utilized.

[0084] In the embodiment of the present invention, the device to be charged sends a con...

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Abstract

A charging method, a charging apparatus, a charger, a chargeable device, and a charging system are provided. The charging method includes: acquiring a control current wave from a chargeable device, wherein the control current wave is a positive current pulse, a negative current pulse, or a current having a current value equal to a reference current value; if the control current wave is the positive current pulse, adjusting an output voltage of a charger to be greater than a present output voltage; if the control current wave is the negative current pulse, adjusting the output voltage of the charger to be less than the present output voltage; and if the control current is the current having the current value equal to the reference current value, maintaining the output voltage unchanged. Accordingly, an output capability of the charger is fully used, thus achieving fast charging.

Description

technical field [0001] The invention relates to the field of charging, in particular to a charging method, device, charger, equipment to be charged and a 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 charger generally includes four pins: VBUS pin, DP pin, DM pin and GND pin, wherein, VBUS pin is the output pin of charger, DP pin and DM pin These are the two signal pins 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 charger is a national standard charg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/04H01M10/44
CPCH01M10/44H02J7/00H02J7/007H02J7/0071H02J7/00711H02J7/0069H02J7/00718H02J2207/20Y02E60/10
Inventor 陈良金
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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