Battery management chip

Abstract

The invention provides a battery management chip, belonging to the field of monitoring integrated circuits. The battery management chip is capable of simultaneously detecting multiple cascade monomer batteries, has a battery voltage data collection function, a battery temperature data collection function, a battery balance function, an A / D (analog to digital) conversion function, a battery open-circuit fault detection function and a chip temperature detection function, and can perform information interaction with a microprocessor in a wireless communication mode. The chip integrates multiple functional modules, thereby saving space and cost; the chip supports simultaneous work of multiple chips; for minimizing power consumption, the chip has detection and standby modes to be selected by a user; and at the same time, the chip has the characteristic of high electromagnetic interference resistance.

Description

technical field [0001] The invention belongs to the technical field of battery state monitoring, and in particular relates to a monitoring and management chip for battery temperature and voltage state. Background technique [0002] Today, the energy crisis is becoming more and more serious, and batteries have become one of the most promising alternative energy sources for hybrid vehicles and electric vehicles, but how to use and handle them to work with the entire vehicle has become one of the current research hotspots. At present, the battery management system is widely used, it is easy to manage and control and control and process the internal data state of the battery. As the "brain" of the system management system, the chip is particularly important. Its performance directly determines the size, type, current and voltage of the tested battery, and plays a decisive role in the test results and accuracy. [0003] Among the existing patented inventions, for example, the pu...

AI Technical Summary

Problems solved by technology

[0005] One: There is a lack of internal protection for the battery monitoring, and overheating and overvoltage will cause different degrees of loss to the chip, so having a chip internal protection module is of great significance for battery monitoring

[0006] Two: When the battery pack is jointly powered, the overall consistency is not thoughtful enough, and no effective measures are taken to adjust the voltage value of each single battery

[0007] 3. For the communication between the integrated chip and the main controller, wireless communication is rarely used, which introduces electromagnetic interference and affects the work of the circuit.

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