Backup power supply
A backup power supply and circuit technology, applied in current collectors, electric vehicles, electrical components, etc., can solve problems such as mixed insertion, failure of battery management system protection functions, damage to sampling protection modules, etc., to prevent protection failures and reduce installation and maintenance. difficulty and cost, and the effect of preventing abnormal charging or discharging
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[0054] This example will specifically describe the backup power supply, such as image 3 As shown, it includes a power battery module 2 and a battery management system 100;
[0055] like Figure 5 , Image 6 As shown, the power battery module 2 includes several battery packs 21 connected in series, and the battery pack 21 includes several single cells connected in series;
[0056] The two ends of the single battery in the power battery module 2 are provided with sampling lines, and the output terminals of several sampling lines are integrated into a sampling output terminal 22;
[0057] Among them, such as image 3 As shown, the battery management system 100 includes a sampling protection module 3, a charging and discharging control module 1 and an anti-mixing module 4;
[0058] The sampling protection module 3 is used to receive the sampling signal of the sampling output terminal 22 in the power battery module 2, and send a primary control signal to the anti-mixing module...
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