Charging switching control circuit and control method thereof

A technology of control circuit and control method, which is applied to battery circuit devices, circuit devices, indicating/monitoring circuits, etc., can solve problems such as poor adaptability, slow speed, and insufficient battery power, and achieve IC area saving and high stability , cost reduction effect

Pending Publication Date: 2018-09-14
SHENZHEN INJOINIC TECH
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  • Abstract
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Problems solved by technology

[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 meth

Method used

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  • Charging switching control circuit and control method thereof
  • Charging switching control circuit and control method thereof
  • Charging switching control circuit and control method thereof

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the 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, and are not limited to the present invention.

[0027] Embodiment of charging switching control circuit:

[0028] see figure 1 , a charging switching control circuit of the present invention includes a voltage input terminal 10, a first voltage output terminal 20, a second voltage output terminal 30, a first USB interface 1 and a second USB interface 2, and the signal input of the first USB interface 1 end is connected to the first voltage output end 20, the second end of the first USB interface 1 is grounded, the signal input end of the second USB interface 2 is connected to the second voltage output end 30, the second end of the second USB ...

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Abstract

The present invention discloses a charging switching control circuit and a control method thereof. The control circuit comprises a voltage input end, at least two voltage output ends and at least twoUSB interfaces, one signal input end of one USB interface is connected with one voltage output end, one switching circuit and one detection circuit are connected between the voltage input end and oneUSB interface, each detection circuit comprises one drive circuit, one voltage generation circuit and one voltage detection circuit, each voltage detection circuit detects the port voltage of one voltage output end, each drive circuit outputs drive signals to one switching circuit, and each voltage generation circuit is configured to generate detection voltage signals. The control method is applied to the charging switching control circuit. The rapid charging circuit is employed to achieve single-power and multi-port output IC, any one USB interface can support a rapid charging function, the IC area can be saved, and the cost is reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of charging, in particular to a charging switching control circuit and a control method for the circuit. 【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] At present, there are more and more fast charging devices with multiple USB output ports on the market. The USB f...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/00H02J7/0013H02J7/0021
Inventor 戴加良郑文杰黄洪伟白瑞林江力赵帅
Owner SHENZHEN INJOINIC TECH
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