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System and method for dynamically adjusting output voltage and output current of USB charger through VBUS signal

A technology of output voltage and dynamic adjustment, applied in the direction of current collectors, transportation and packaging, battery circuit devices, etc., can solve the problems that chargers cannot meet the charging needs of various mobile terminals, are not conducive to user organization and storage, and waste, etc., to achieve The structure is simple, the cost is low, and the effect of meeting the charging demand

Active Publication Date: 2014-09-24
湖州帷幄知识产权运营有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual use, different mobile terminals have different charging or power consumption requirements, and a single charger cannot meet the charging requirements of various mobile terminals.
Configuring a charger for each mobile terminal not only causes unnecessary waste, but also is not conducive to the user's organization and storage

Method used

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  • System and method for dynamically adjusting output voltage and output current of USB charger through VBUS signal
  • System and method for dynamically adjusting output voltage and output current of USB charger through VBUS signal
  • System and method for dynamically adjusting output voltage and output current of USB charger through VBUS signal

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Embodiment Construction

[0042] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0043] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual impleme...

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Abstract

The invention provides a system and method for dynamically adjusting output voltage and output current of a USB charger through a VBUS signal. The system comprises the USB charger and a mobile terminal, wherein a USB interface comprises a VBUS pin; the USB charger is connected with the mobile terminal through the USB interface; the USB charger comprises a first control module, a charging module and a first PWM signal receiving and transmitting module; the mobile terminal comprises a second control module and a second PWM signal receiving and transmitting module. The output voltage and the output current of the USB charger can be dynamically adjusted by the system and method for dynamically adjusting output voltage and output current of the USB charger through the VBUS signal, the charging requirements of different mobile terminals can be met, and the system and method are high in applicability; the system is simple in structure, low in cost and easy to obtain.

Description

technical field [0001] The invention relates to a method for adjusting the output voltage and current of a charger, in particular to a system and method for dynamically adjusting the output voltage and current of a USB charger by using a VBUS signal. Background technique [0002] In daily life, the application of mobile terminals such as mobile phones, tablet computers, and PDAs is becoming more and more popular. As the screen of a mobile terminal becomes larger, more and more modules are integrated thereon. This leads to faster and faster power consumption of the mobile terminal. Therefore, it becomes more and more important to realize fast charging of mobile terminals. [0003] Currently, most mobile terminals on the market use USB charging interfaces, such as mini USB interfaces and microUSB interfaces. The USB charging interface provides 5V charging power, which can support the plug-and-play charging of the mobile terminal battery. Usually, the charger is composed of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 左成兵陈文煜
Owner 湖州帷幄知识产权运营有限公司
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