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A charging device and charging method

A charging device and charging circuit technology, applied in circuit devices, battery circuit devices, output power conversion devices, etc., can solve the problems of increased charging time, low charging efficiency, slow trickle charging process, etc., to improve charging efficiency. , Improve the user experience and shorten the charging time

Active Publication Date: 2018-05-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the trickle current is too small, the trickle charging process is very slow, which increases the charging time and the charging efficiency is very low.

Method used

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  • A charging device and charging method
  • A charging device and charging method
  • A charging device and charging method

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Experimental program
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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] figure 2 It is a schematic diagram of the composition and structure of the charging device of the present invention, such as figure 2 As shown, the device includes a charging circuit 21, an energy storage circuit 22 and a control switch 23; wherein,

[0044] The charging circuit 21 is used to charge the object to be charged;

[0045] The energy storage circuit 22 is configured to store energy when the charging circuit 21 charges the object to be charged, and to charge the object to be charged when the charging circuit 21 is in a disconnected state;

[0046] The control switch 23 is used to alternately turn on and off the charging circuit 21 according to periodically received control instructions, and turn off the energy storage circuit 22 when the charging circuit 21 is turned on, and turn off the energy storage circuit 22 ...

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PUM

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Abstract

The invention discloses a charging device, comprising: a charging circuit, an energy storage circuit and a control switch; the charging circuit is used for charging an object to be charged; the energy storage circuit is used for charging the charging object in the charging circuit storing energy when the object to be charged is charged, and charging the object to be charged when the charging circuit is in a disconnected state; the control switch is used to alternately turn on, The charging circuit is disconnected, the energy storage circuit is disconnected when the charging circuit is turned on, and the energy storage circuit is turned on when the charging circuit is turned off. The invention also discloses a charging method for the aforementioned charging device at the same time. By adopting the technical solution of the present invention, charging efficiency can be improved, and user experience can also be improved.

Description

technical field [0001] The invention relates to the charging technology of electronic equipment, in particular to a charging device and a charging method. Background technique [0002] A universal serial bus (USB, Universal Serial Bus) charging function refers to a function of charging a terminal through a USB port of a personal computer (PC, Personal Computer) or a notebook computer. At present, many handheld devices such as MP3 players and mobile phones are equipped with USB chargers. The data cable is used as a power cable, and when it is inserted into the USB port of a PC or notebook computer, it will automatically start charging, which greatly facilitates people's life. The charging process needs to go through three charging stages: constant voltage charging, constant current charging and trickle charging. [0003] The output voltage of the USB port of the PC or notebook computer is generally 5V, which is more accurate; but the output current of the USB port is small, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02M3/155
CPCH02M3/155H02J7/345Y02B40/00H02J7/04H02J7/007182H02J7/025H02J7/00
Inventor 刘可靖
Owner ZTE CORP