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Charging method and device integrating quick-charging rules and USB charging rules

A technology of a charging device and a charging method, applied to battery circuit devices, circuit devices, secondary battery charging/discharging, etc.

Inactive Publication Date: 2014-09-10
QINGDAO GOERTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Qualcomm Quick Charge is a closed standard. Currently, there is no separate charging management circuit on the market that can be used in charging devices. It is compatible with Qualcomm Quick Charge and the existing USB charging management specification USB Battery Charging (USB charging).

Method used

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  • Charging method and device integrating quick-charging rules and USB charging rules
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  • Charging method and device integrating quick-charging rules and USB charging rules

Examples

Experimental program
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Effect test

Embodiment approach

[0072] Such as Figure 7 Shown is a specific implementation of the current detection circuit U5 of the charging device compatible with the fast charging and USB charging specifications of the present invention, including:

[0073] A current detection chip, the model of the current detection chip is IN212, and its V+ pin is connected to the system voltage VDD; the GND pin of the current detection chip is grounded; the REF pin of the current detection chip is connected to the resistor R113 and then connected to the resistor Rshunt The input terminal of the current detection chip is grounded after connecting the resistor R114; the IN+ and IN- pins of the current detection chip are respectively connected to the input terminal and the output terminal of the resistance Rshunt; the OUT pin of the current detection chip outputs the flow current size of Rshunt.

[0074] Such as Figure 8 As shown, the charging management circuit U2 of the charging device compatible with the fast charg...

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Abstract

The invention provides a charging method and device integrating quick-charging rules and USB charging rules, and relates to the technical field of charging. The method includes the steps that when the charging device is connected with an external power supply and detects that a portable device is connected, the charging device identifies the category of the power supply and charges the portable device according to Qualcomm Quick Charge or USB Battery Charging rules, and when it is detected that circulating currents between the charging device and the portable device are small, namely the portable device has been charged, the external power supply charges a built-in battery of the charging device according to the Qualcomm Quick Charge or USB Battery Charging rules; when the charging device is connected with the external power supply and it is not detected that the portable device is connected, the external power supply is controlled to charge the built-in battery in the charging device according to the Qualcomm Quick Charge or USB Battery Charging rules; when the charging device is not connected with the external power supply and it is detected that the portable device is connected, the built-in battery in the charging device charges the portable device according to the USB Battery Charging rules.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to a charging method and device compatible with fast charging and USB charging specifications. Background technique [0002] Portable devices are favored by consumers because of their small size and easy portability. With the popularization of portable devices such as portable devices, their functions are constantly improving. The more functions users use, the more power consumption of portable devices. Increase, users will often encounter the problem of insufficient battery power during use, so more and more people need to conveniently charge portable devices such as portable devices anytime and anywhere. The conventional charging method is slow and the charging method Limited to the conventional 5V / 1.5A charging limit, it cannot meet the needs of users to a large extent. [0003] Qualcomm Quick Charge (Qualcomm Quick Charge) is an emerging charging method for portable devices su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/44H02J7/00Y02E60/10
Inventor 刘向候于亚男
Owner QINGDAO GOERTEK
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