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A system that realizes dual functions of otg and charging based on intelligent modules

An intelligent module, dual-function technology, applied in the direction of collectors, electric vehicles, electrical components, etc., can solve the problem of not supporting charging, not supporting and so on

Active Publication Date: 2020-04-10
QUECTEL WIRELESS SOLUTIONS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defect that the intelligent terminal does not support charging when using the OTG slave device in the prior art, or does not support the defect of the OTG slave device when charging, and provides a dual function of OTG and charging based on an intelligent module. system

Method used

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  • A system that realizes dual functions of otg and charging based on intelligent modules
  • A system that realizes dual functions of otg and charging based on intelligent modules

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Embodiment Construction

[0020] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.

[0021] Such as Figure 1-2 As shown, the system for realizing OTG and charging dual functions based on the intelligent module involved in this embodiment includes an intelligent module 1, a switching circuit 2, an adapter input terminal 3 and a USB port 4, and the intelligent module 1 includes a USB functional unit 11, a charging Management unit 12, GPIO pins, the USB function unit 11 includes a USB power supply pin USB_VBUS, a USB data positive pin USB_DP, a USB data negative pin USB_DN, and a USB ID pin USB_ID, and the charging management unit 12 includes Power supply pin VBAT, the switching circuit 2 includes a first port 21, a second port 22, a third port 23 and a control port 24, the USB port 4 is used to connect an OTG slave device, and the adapter input terminal 3 is used for Connecting the adapter, the power supply pi...

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Abstract

The invention discloses an intelligent module-based OTG and charging double-function realization system. The system comprises an intelligent module, a switching circuit, an adapter input end and a USBport, wherein the intelligent module comprises a USB function unit, a charging management unit and a GPIO pin; and the intelligent module obtains a connected device type according to USB standards, namely, when it is detected that a low level of a USB power supply pin is changed to a high level and a high level of a USB ID pin is changed to a low level, it is indicated that an adapter and an OTGslave device are coexistent, at the moment, the intelligent module sets the GPIO pin to be in the high level for controlling the switching circuit to take the adapter as a power supply of the intelligent module, perform charging and supply the power supply of the intelligent module to the OTG slave device, thereby realizing OTG and charging double functions. The adapter is separated from power supply hardware of the OTG slave device through the switching circuit, and the switching circuit is controlled by using a software process to realize complete separation for realizing the OTG and charging double functions.

Description

technical field [0001] The invention relates to the field of intelligent equipment, in particular to a system for realizing dual functions of OTG and charging based on an intelligent module. Background technique [0002] The existing smart terminal is using OTG (On the Go, mainly used for connection between various devices or mobile devices for data exchange) slave device, the smart terminal is the host (master device), and when charging, the smart terminal As a device (slave device), the smart terminal does not support charging when using the OTG slave device, or does not support the OTG slave device when charging, but more and more customers need to be able to charge when the smart terminal device is used as a host. In order to ensure that the device will not be shut down due to battery depletion during continuous use. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defect that the intelligent terminal do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40H02J7/00
Inventor 高玉全杨希望孙延明
Owner QUECTEL WIRELESS SOLUTIONS
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