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Two-in-one charging circuit compatible with mtk and qc2.0 charging solutions

A charging scheme and charging circuit technology, which is applied to battery circuit devices, circuit devices, current collectors, etc., can solve problems such as difficulties, chargers that cannot be shared in daily life, and mobile phone chargers that cannot be shared, and achieve the effect of strong versatility

Active Publication Date: 2017-09-05
HON KWANG ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are mainly two fast charging schemes for mobile phones, one is the MTK charging scheme of MediaTek Co., Ltd., and the other is the QC2.0 charging scheme of Qualcomm. Different voltage requirements require different charging circuits, so mobile phone chargers using two charging schemes cannot be shared. Under the current situation of popularization of smart phones, the inability to share chargers has brought certain difficulties to daily life.

Method used

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  • Two-in-one charging circuit compatible with mtk and qc2.0 charging solutions
  • Two-in-one charging circuit compatible with mtk and qc2.0 charging solutions
  • Two-in-one charging circuit compatible with mtk and qc2.0 charging solutions

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Embodiment 1

[0023] Such as figure 1 As shown, the two-in-one charging circuit compatible with MTK and QC2.0 charging schemes includes an EMI processing and rectification and filtering module connected to the mains input, the output of the EMI processing and rectification and filtering module is connected to the input of the high-frequency transformer Electrically connected, the output end of the high-frequency transformer is electrically connected to an output rectification filter module, and the output end of the output rectification filter module is connected to a USB port module;

[0024] A QC2.0 charging scheme identification and detection module is connected between the USB port module and the output rectification and filtering module, and the QC2.0 charging scheme identification and detection module includes a USB charging port D+\ that is electrically connected to the USB port module D-signal combination detection module, the output terminal of the USB charging port D+\D-signal com...

Embodiment 2

[0036] This embodiment is basically the same as Embodiment 1, the difference is: as Image 6 As shown, the two-in-one charging circuit compatible with MTK and QC2.0 charging schemes includes an EMI processing and rectification and filtering module connected to the mains input, the output of the EMI processing and rectification and filtering module is connected to the input of the high-frequency transformer Electrically connected, the output end of the high-frequency transformer is electrically connected to an output rectification filter module, and the output end of the output rectification filter module is connected to a USB port module;

[0037] A QC2.0 charging scheme identification and detection module is connected between the USB port module and the output rectification and filtering module, and the output rectification and filtering module is also connected with an MTK charging scheme identification and detection module, and the QC2.0 charging scheme identification and de...

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Abstract

The invention discloses a two-in-one charging circuit compatible with MTK and QC2.0 charging schemes, which includes an EMI processing and rectification and filtering module, a high-frequency transformer, an output rectification and filtering module, and a USB port module that are electrically connected in sequence; the USB port module is connected with The QC2.0 charging scheme identification and detection module, the feedback winding of the high-frequency transformer is connected to the MTK charging scheme identification and detection module, the output of the QC2.0 charging scheme identification and detection module and the MTK charging scheme identification and detection module is connected to the charging output control module, charging The output control module is electrically connected with the high-frequency transformer; the charging scheme of the mobile phone is detected through the corresponding detection module, and the detection result is fed back to the charging output control module, and the voltage output of the high-frequency transformer is controlled by the charging output control module, so that a suitable voltage is obtained in the USB port module. The charging voltage of the charging scheme; the present invention can automatically adapt to two charging schemes, and has strong versatility.

Description

technical field [0001] The invention relates to the technical field of fast charging, in particular to a fast charging circuit for mobile phones compatible with MTK and QC2.0 charging schemes. Background technique [0002] In the prior art, there are mainly two fast charging schemes for mobile phones, one is the MTK charging scheme of MediaTek Co., Ltd., and the other is the QC2.0 charging scheme of Qualcomm. Different voltage requirements require different charging circuits, so mobile phone chargers using the two charging schemes cannot be shared. With the popularity of smartphones, the inability to share chargers has brought certain difficulties to daily life. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a two-in-one charging circuit with strong versatility and compatible with MTK and QC2.0 charging schemes suitable for USB charging. [0004] In order to solve the above technical problems, the technical sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/04
Inventor 卓彦宏毛燦豪王令彬
Owner HON KWANG ELECTRIC SHENZHEN