GXSC high-performance BMS AFE creates a one-stop high-voltage monitoring solution for energy storage battery packs

BMS AFE is a key component in battery management systems, mainly responsible for precise measurement and monitoring of battery parameters. Energy storage battery packs typically operate at high voltages, and the voltage of battery packs in electric vehicles can reach several hundred volts. Accurate high-voltage monitoring can promptly detect abnormal situations such as overvoltage and undervoltage in batteries, prevent dangerous situations such as thermal runaway and short circuits, and ensure the safety of users and the integrity of equipment. By accurately monitoring high voltage, we can better understand the charging and discharging status of the battery, optimize the charging and discharging strategy of the battery, extend the service life of the battery, and improve the overall performance and efficiency of the energy storage system.

GXSC high-performance BMS AFE 120V@18S The vehicle safety product series provides independently innovated high-voltage resistant technology and industry-leading precision measurement technology, which has been fully applied in the new energy vehicle power battery BMS, energy storage/grid side large storage, industrial and commercial storage, and mid to high end household storage BMS markets. The BMS AFE high-voltage monitoring solution can support the collection of total voltage and total current of battery packs, insulation inspection and other functions, meeting the high-performance requirements of current electric vehicle/energy storage systems for high-voltage monitoring:

1. Current monitoring accuracy within 0.5%, updated once every 1-10ms;

2. Bus voltage monitoring function: accuracy requirement: ± 0.5%;

3. Support relay adhesion diagnosis function;

4. Support insulation detection function;

5. Support the temperature detection function of the splitter;

Advantages of GXSC BMS AFE series products:

1. Industry‘s highest withstand voltage value of 120V: supports 6-18 series battery packs, with a maximum withstand voltage of 120V

2. Fully parallel&true synchronous: 18 channel ADC true synchronous sampling architecture, achieving a sampling time of less than 2mS for all battery cells in 800V/220 series

3. Ultra low sampling total error: Under full error conditions (temperature, humidity, welding, and long-term drift), the voltage sampling accuracy can reach: ± 1.5mV (1.5~5V) @ 25 ° C ± 2.0mV (1.5~5V) @ -20 ° C~65 ° C ± 3.0mV (1.5~5V) @ -40 ° C~125 ° C

4. Built in ultra-low temperature drift high stability Zener architecture benchmark, temperature drift as low as 3ppm/℃

5. Up to 11 external temperature measurement channels, 0.1% ADC accuracy supports temperature measurement at ± 1 ° C @ -20 ° C~65 ° C

6. Passive balancing: A typical ultra-low balancing impedance of 1.2 Ω can support up to 300mA of internal balancing current

7. Isolation communication: 1Mbps bidirectional daisy chain can support up to 40 AFE cascades, supporting capacitor or transformer isolation; High robustness design ensures that daisy chain communication passes the most rigorous BCI communication level and accuracy tests.