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Battery protection controller and battery charge and discharge protection circuit

A technology for protecting controllers and protecting circuits, applied in battery disconnect circuits, battery circuit devices, safety/protection circuits, etc., can solve problems such as large size and cost, and achieve the effect of reducing the number of pins, volume and cost

Active Publication Date: 2020-12-08
SHENZHEN LINGQI SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a battery protection controller and a battery charge and discharge protection circuit in view of the defects in the prior art that the battery protection controller has many pins, large volume and high cost

Method used

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  • Battery protection controller and battery charge and discharge protection circuit
  • Battery protection controller and battery charge and discharge protection circuit
  • Battery protection controller and battery charge and discharge protection circuit

Examples

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] The specific implementations / examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. limit. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. The replacement and modified technical solutions are all within the protection scope of the present invention.

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0031] combine figure 2 and image 3 , in Embodiment ...

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Abstract

The invention relates to a battery protection controller and a battery charge and discharge protection circuit. The battery protection controller includes a battery protection controller including a first charging drive module and a first load short-circuit monitoring module, and also includes a first diode and a setting The multiplexing pins on the outer frame, the multiplexing pins are respectively connected to the first charging drive module, the second charging driving module and the second load short-circuit monitoring module, and the multiplexing pins are also connected to the first diode The anode of the tube, the cathode of the first diode is connected to the first load short-circuit monitoring module. Implementing the technical solution of the present invention, the multiplexing pin of the battery protection controller has the functions of the two pins of the charging drive pin and the load short-circuit monitoring pin in the prior art, which can reduce the number of pins packaged by the battery protection controller , thereby reducing size and cost.

Description

technical field [0001] The invention relates to the field of battery protection control, in particular to a battery protection controller and a battery charging and discharging protection circuit. Background technique [0002] Nowadays, due to the lower cost and smaller size of lithium batteries, more and more portable devices use lithium batteries for power supply. Based on the safety requirements of lithium batteries, lithium battery protection controllers are widely used, but how to protect the controller in lithium batteries? On the basis of improving the protection function, further reducing the cost of the lithium battery protection controller and reducing the volume of the lithium battery protection controller are issues that need to be studied and considered. [0003] like figure 1 As shown in the figure, in addition to the power supply pin 1 and the reference ground pin 2, the outer frame of the traditional lithium battery protection controller also includes other ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02H7/18
CPCH02J7/0031H02H7/18H02J7/00
Inventor 李友玲
Owner SHENZHEN LINGQI SEMICON CO LTD