A charging control method and device, terminal equipment

A technology of current control and signal control, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problems of large charging current and voltage drop, and achieve the effect of fast charging and avoiding voltage drop

Active Publication Date: 2021-01-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the charging current is large, there will be a voltage drop problem. On the other hand, the rapid adjustment of the charging current will also cause a voltage drop problem.

Method used

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  • A charging control method and device, terminal equipment
  • A charging control method and device, terminal equipment
  • A charging control method and device, terminal equipment

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Embodiment Construction

[0032] As a consumer electronics accessory, wireless charging devices have successfully gained consumers' favor, however, a large number of wireless charging devices in the market still do not meet the expected charging performance. One of the main reasons for this situation is wireless charging efficiency. Low, slow charging. Up to now, the main certification bodies of wireless charging can only carry out the certification of less than 5W, and in order to pass the certification and ensure the stability of charging, all interrupt manufacturers often set the charging current very low, generally only a few hundred milliamperes . But for most terminal products, with the increase of battery capacity, the charging current of hundreds of milliamps cannot meet the needs of users at all. For a 3000mAH battery, it takes 5 hours to fully charge it once, which seriously affects the user experience.

[0033] In order to solve this problem and accelerate the development of wireless chargi...

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Abstract

A charging control method and apparatus, and a terminal device. The method comprises: generating an alternating current electromagnetic induction signal, and converting the alternating current electromagnetic induction signal into a direct current signal, the current corresponding to the direct current signal being used for charging a battery (401); and obtaining a first control signal during a data packet transmission interval, and controlling the current increase of the direct current signal on the basis of the first control signal (402).

Description

technical field [0001] The present application relates to wireless charging technology, and in particular to a charging control method and device, and a terminal device. Background technique [0002] In order to accelerate the development of wireless charging technology, the Wireless Power Consortium (WPC, Wireless Power Consortium) has formulated a new medium-power wireless charging standard, which can support larger charging power and charging current. [0003] For medium power wireless charging, the charging current is increased to support fast charging. However, if the charging current is large, there will be a voltage drop problem. On the other hand, the rapid adjustment of the charging current will also cause a voltage drop problem. How to solve the voltage drop problem when wireless charging outputs a large current, and the voltage drop problem during the dynamic and rapid adjustment of the charging current, so that wireless charging can perform high-current charging...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H02J7/00
CPCH02J7/04H02J7/00
Inventor陈涛
OwnerZTE CORP