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A battery charging circuit, its control circuit and control method

A battery charging and control circuit technology, which is applied to battery circuit devices, different battery charging, charging/discharging current/voltage regulation, etc., can solve problems such as power increase, and achieve the effect of ensuring stability and fast response speed

Active Publication Date: 2019-06-18
CHENGDU MONOLITHIC POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power required by the central processing unit increases significantly when the operating performance is improved. Therefore, it is necessary to reasonably design the battery charging circuit to meet the instantaneous high power demand and ensure the stability of the computer system.

Method used

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  • A battery charging circuit, its control circuit and control method
  • A battery charging circuit, its control circuit and control method
  • A battery charging circuit, its control circuit and control method

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known circuits, materials or methods have not been described in detail in order to avoid obscuring the present invention.

[0019] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in on...

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Abstract

Disclosed are a battery charging circuit, a control circuit and a control method thereof. The control circuit includes a system voltage control loop, a charging current control loop, and an inductor current control loop. The control circuit limits the amplitude of the compensation signal output by the charging current control loop according to the maximum input current reference value, and will The compensation signal is used as the reference signal of the inductor current, so it has a faster response speed and ensures the stability of the system.

Description

technical field [0001] Embodiments of the present invention relate to an electronic circuit, and more specifically, to a battery charging circuit, a control circuit and a control method thereof. Background technique [0002] With the development of electronic technology, computer systems have been more and more widely used in people's daily life, ranging from small handheld electronic devices such as smart phones, tablet computers, e-books, digital cameras, to large ones for specific occasions Advanced electronic equipment, such as servers, base stations, and other consumer electronics, such as notebook computers, desktop computers, netbooks, etc., all require computer systems. In a computer system, a central processing unit (CPU) is used to interpret computer instructions and process data in computer software, and a voltage regulator is used to provide a power supply voltage for the CPU. When there is no external power supply, a battery is required to provide power, so bat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0071H02J7/0047H02J7/0068H02M3/1584H02M3/1582H02J7/00036H02J7/00047H02J7/007H02M3/157H02J7/00
Inventor 欧阳茜
Owner CHENGDU MONOLITHIC POWER SYST