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Method and device for adaptive input current control in electronic equipment

A technology of input current and electronic equipment, applied in the field of adaptive input current control, can solve problems such as collapse, unstable system power, limited power output capability, etc., and achieve the effect of preventing voltage collapse

Active Publication Date: 2019-07-02
MEDIATEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the conventional portable device suffers from limited power-outputting capability during initialization
Also, since this conventional charge control circuit adjusts the input current setting of the conventional regulator from low to high, the input voltage of the conventional regulator decreases and temporarily becomes lower than the power collapse level before the optimal current level is reached , therefore, the conventional external power supply may collapse during the operation of the conventional portable electronic device, which may cause unstable system power of the conventional portable electronic device

Method used

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  • Method and device for adaptive input current control in electronic equipment
  • Method and device for adaptive input current control in electronic equipment
  • Method and device for adaptive input current control in electronic equipment

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Embodiment Construction

[0013] The following description is a preferred embodiment of the present invention. The following examples are only used to illustrate the technical characteristics of the present invention, but not to limit the scope of the present invention. Certain terms are used throughout the specification and claims to refer to particular elements. It should be understood by those skilled in the art that manufacturers may refer to the same element by different terms. The present specification and claims do not use the difference in name as a way of distinguishing elements, but use the difference in function of the elements as a basis for differentiation. The terms "element," "system," and "apparatus" as used in the present invention can be a computer-related entity, wherein the computer can be hardware, software, or a combination of hardware and software. The terms "comprising" and "including" mentioned in the following description and claims are open-ended terms and should be interpr...

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Abstract

The present invention provides a method and device for adaptive input current control in electronic equipment, wherein the method may include the step of: before limiting the input current of the regulator of the electronic equipment to a target current value, monitoring the regulator and, reducing the reference current so that the reference current begins to vary from one of a plurality of predetermined reference current values, wherein the input current is obtained from a power source; and At the point in time when the reference current becomes smaller than the input current, the input current of the regulator is limited to a target current value, wherein the latest reference current value of the reference current is regarded as the target current value. With the present invention, the input current can be directly adjusted to a target current value, thereby preventing voltage collapse during operation of electronic equipment.

Description

technical field [0001] The present invention relates to regulation control (eg, charging control) in portable electronic devices, and more particularly, to a method and apparatus for adaptive input current control in electronic devices. Background technique [0002] According to the related art, conventional regulation control circuits in conventional portable electronic devices can be designed to prevent problems such as those caused by insufficient power of conventional external power sources such as alternating current (AC) to direct current (DC) adapters system crashes. However, further problems may arise, such as some side effects. For example, conventional regulators of conventional portable electronic devices may be used to regulate voltage and current obtained from conventional external power sources, and, during initialization (eg, when the conventional external power supply has just been connected to the conventional portable electronic device), conventional The ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/36H02M1/32H02M7/217G06F1/28
CPCH02J7/027H02J7/04H02M1/36G06F1/28H02M1/0016H02M1/0025H02M1/32H02M7/217
Inventor 龚能辉罗国彰林家祥
Owner MEDIATEK INC