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

A charging method and technology of a charger, which are applied in charging/discharging, charging/discharging current/voltage regulation, circuit devices, etc. for charging maintenance, and can solve problems such as inability to make full use of the charging capacity of a charger

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

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

Examples

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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

The invention discloses a charging method and device, a charger, equipment to be charged and a charging system. The charging method includes the steps that control current waves of the equipment to be charged are obtained, wherein the control current waves comprise positive current pulses, negative current pulses and current of which the value is equal to a reference current value; when the control current waves are the positive current pulses, the output voltage value of the charger is adjusted to be larger than the current output voltage value of the charger; when the control current waves are the negative current pulses, the output voltage value of the charger is adjusted to be smaller than the current output voltage value of the charger; when the control current waves are the current of which the value is equal to the reference current value, the output voltage value of the charger is kept unchanged. By the adoption of the method, the device, the charger, the equipment to be charged and the charging system, the output 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 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 Applications(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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