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Charger, charging identification circuit and method

A charger and circuit technology, applied in battery circuit devices, current collectors, circuit devices, etc., can solve problems such as misjudgment and inaccurate voltage, and achieve the effect of solving inaccurate voltage and improving conversion efficiency.

Inactive Publication Date: 2016-11-09
SHENZHEN TINNO WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a charger, a charging identification circuit and a method, which can effectively solve the problem of inaccurate voltage misjudgment caused by the impedance of the USB transmission line, and improve the conversion efficiency of the mobile terminal charging chip

Method used

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  • Charger, charging identification circuit and method
  • Charger, charging identification circuit and method
  • Charger, charging identification circuit and method

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] figure 1 is a schematic structural diagram of the charging identification circuit of the first embodiment of the present invention. Such as figure 1 As shown, the charging identification circuit 10 includes: a signal transmitting terminal 11 and a charger 12 . The signal transmitting end 11 is used for transmitting a phase-variable identification signal. The charger 12 is connected to the signal transmitting end 11 for obtaining the p...

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Abstract

The invention discloses a charger, a charging identification circuit and a method. The circuit includes: a signal transmitter, used to transmit a phase-variable identification signal; a charger, connected to the signal transmitter, used to obtain the phase of the identification signal; the charger is also used to adjust the voltage control output corresponding to the phase of the identification signal value to charge the battery. Through the above method, the present invention can effectively solve the problem of inaccurate voltage misjudgment caused by the impedance of the USB transmission line, and improve the conversion efficiency of the charging chip of the mobile terminal.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to a charger, a charging identification circuit and a method. Background technique [0002] With the popularization of smart phones and the increasing demand of users for the battery life of mobile phones, the rapid charging technology of smart phone batteries has been rapidly popularized under the condition that lithium battery technology cannot make a breakthrough and increase the energy density. There are roughly three fast charging technologies, namely Qualcomm’s Quick Charge version, such as QC2.0, QC3.0, MediaTek.Inc, MTK’s Pump Express and Pump Express plus, OPPO’s VOOC Flash charging technology; these three fast charging technologies need to match the corresponding fast charger, and identify the special charger through the voltage, current signal or the communication between the mobile phone and the Microcontroller Unit (MCU) at the charger end and finally determine the cha...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0077
Inventor 李新倪漫利王晨
Owner SHENZHEN TINNO WIRELESS TECH