Charging protection circuit and charging device

A charging protection and overcurrent protection circuit technology, which is applied to battery circuit devices, circuit devices, safety/protection circuits, etc., and can solve problems such as multi-channel charging devices that cannot be protected

Pending Publication Date: 2022-05-06
DYNAX SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a charging protection circuit and a charging device to improve the problems that the existing multi-channel charging device cannot independently protect each charging branch.

Method used

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  • Charging protection circuit and charging device
  • Charging protection circuit and charging device
  • Charging protection circuit and charging device

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0041] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides a charging protection circuit and a charging device, and relates to the technical field of charging protection, and the charging protection circuit comprises a power conversion protection module and a detection processing module. The power conversion protection module comprises at least two output branches, and each output branch is correspondingly connected with one battery unit; the detection processing module is connected with each battery unit and is also connected with the power conversion protection module, the detection processing module is used for detecting charging parameters of the battery units, when the charging parameters meet preset conditions, a protection signal is output to the power conversion protection module, and the power conversion protection module protects the corresponding output branch according to the protection signal. According to the scheme provided by the invention, the charging parameters of each charging branch are detected, whether protection needs to be carried out or not is judged according to the charging parameters, and the branch is protected under the condition that the charging parameters meet conditions, so that normal charging of other branches is not influenced.

Description

technical field [0001] The invention relates to the technical field of charging protection, in particular to a charging protection circuit and a charging device. Background technique [0002] The battery system of traditional electrical equipment usually has only one battery, which is quickly charged by high-voltage fast charging or high-current fast charging. High-current fast charging has high quality requirements for the connection wires and interfaces between the charger and the battery. Higher, high-voltage fast charging requires an additional step-down converter, which affects efficiency and increases heat generation. Electric equipment using a combined battery structure, such as unmanned vehicles, electric vehicles, etc., its internal battery is composed of multiple battery modules with different voltages connected in parallel, adopts a multi-channel power supply strategy, and has high-voltage fast charging and high-current fast charging. Advantages of charging. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/00304H02J7/0013H02J7/00712
Inventor 朱永生张乃千裴轶
Owner DYNAX SEMICON
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