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Battery output short-circuit protection circuit

A technology for outputting short circuits and protecting circuits, applied in emergency protection circuit devices, electrical components, etc., can solve the problems of energy loss, high temperature, high cost, etc., and achieve the effect of lower power consumption rate and less power consumption

Inactive Publication Date: 2013-04-10
ALL WIN GREEN POWER TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invent describes an improved system where batteries are protected by lower cost resistive elements without requiring too much power compared to traditional methods like fuse circuits or other protectants. This allows for flexibility when selecting which parts of the battery can handle higher currents than previous designs.

Problems solved by technology

Layer's technical problem addressed by this patented technology relates to improving the performance and reliability of Lithium ion battery safety devices (LIBS) during overcharge/discharges without causing damage or even burning them down. Current solutions involve adding more expensive components like resistors and capacitors to improve their ability to prevent these issues.

Method used

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  • Battery output short-circuit protection circuit
  • Battery output short-circuit protection circuit
  • Battery output short-circuit protection circuit

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Embodiment Construction

[0039] see figure 2 and image 3 , The battery output short-circuit protection circuit of the present invention includes: a switch component 1 , a voltage comparator 2 , a reference voltage 3 , a state voltage generating circuit 4 and a short-circuit sensing component 5 . The switch assembly 1 has a gate terminal 11, a first terminal 12 and a second terminal 13, the first terminal 12 is electrically connected to a battery 100, and the second terminal 13 is electrically connected to a first load terminal 61 ; The voltage comparator 2 has an output terminal 21, a first input terminal 22 and a second input terminal 23, the output terminal 21 is electrically connected to the gate terminal 11 of the switch assembly 1; the reference voltage 3 is electrically connected to the voltage The first input terminal 22 of the comparator 2; the state voltage generating circuit 4 has a voltage output terminal 43 electrically connected to the second input terminal 23 of the voltage comparator...

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Abstract

Provided is a battery output short-circuit protection circuit. Whether an output load end of a loop is short-circuited is detected through a short circuit sensing assembly so as to achieve the aim of protecting a battery. When normal power supply is performed, the output load end is connected with a load, the short circuit sensing assembly is open-circuited, a state voltage generating circuit immediately outputs a voltage value higher than reference voltage to enable a voltage comparator to output a low level signal, and the low level signal enables the whole loop to be in an initiating state through a switch assembly. When the output load end is short-circuited, the short circuit sensing assembly is immediately connected to enable the state voltage generating circuit to immediately output a voltage value lower than reference voltage so as to enable a voltage comparator to output a high level signal, and the high level signal enables the whole loop to be in a dead state through the switch assembly.

Description

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Claims

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Application Information

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Owner ALL WIN GREEN POWER TECH CORP
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