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Single-battery-based multi-port fast charging circuit, control method, device and charging equipment

A technology for charging equipment and single batteries, applied in battery circuit devices, circuit devices, charging/discharging current/voltage regulation, etc., can solve the problem that multiple interfaces cannot be quickly charged, and achieve the effect of reducing production costs

Active Publication Date: 2021-05-25
SHENZHEN INJOINIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a multi-port fast charging circuit based on a single battery, aiming to solve the problem that multiple ports cannot be fast charged

Method used

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  • Single-battery-based multi-port fast charging circuit, control method, device and charging equipment
  • Single-battery-based multi-port fast charging circuit, control method, device and charging equipment
  • Single-battery-based multi-port fast charging circuit, control method, device and charging equipment

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] In some alternative examples, please refer to image 3 , image 3 It is a schematic diagram of the module structure of an embodiment of a multi-port fast charging circuit based on a single battery in the present application.

[0046] Such as image 3 As shown, an embodiment of the present application is based on a single battery multi-port fast charging circuit, including a USB interface module 1 , a battery management module 2 and a fast charging switching module 3 .

[0047] USB interface module 1 comprises at least two USB interfaces, and USB interface comprises voltage input end; Batt...

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Abstract

The invention is applicable to the technical field of electronic circuits, and provides a single-battery-based multi-port fast charging circuit, a control method, a device and a charging device. The structure includes: a USB interface module, including at least two USB interfaces, and the USB interface includes a voltage input terminal; the battery management module is connected to the single battery and includes the voltage output terminal corresponding to the voltage input terminal; the fast charging switching module is arranged on the line between the voltage input terminal and the voltage output terminal, and the control input terminal of the fast charging switching module It is connected with the battery management module and used to switch the charging mode of the USB interface under the control of the battery management module, wherein the charging module includes a normal charging module and a fast charging mode. In the embodiment of the present application, by disposing a fast charging switching module between the battery management module and the USB interface, only one set of fast charging switching module can make multiple USB interfaces switch from the ordinary charging module to the fast charging mode, so as to realize simultaneous multi-interface charging. The fast charging function can effectively reduce production costs.

Description

technical field [0001] The invention belongs to the technical field of electronic circuits, and in particular relates to a multi-port fast charging circuit based on a single battery, a control method, a device and a charging device. Background technique [0002] At present, there are more and more fast charging devices with multiple USB output ports on the market. Generally, only one main power supply and one fast charging circuit are used inside to save costs. When multiple devices are plugged in, they can be charged at the same time, but at this time there is only 5V Charging, cannot perform fast charging at the same time. Such as figure 1 As shown, the charging device includes a USBA1 interface and a USBA2 interface, and U1 is a DCDC circuit that controls the output of VOUT1 and VOUT2. When plugging and unplugging detects that only one port is plugged into the load, this port can apply for fast charging; when the other port is plugged into the load, the fast charging po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/00H02J7/007H02J2207/30
Inventor 丁家平
Owner SHENZHEN INJOINIC TECH
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