Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-02-26 Hits: Popular:AG11 battery
Multi-channel voltage acquisition circuit for electric vehicle battery management system
This article introduces a novel multi-channel voltage acquisition circuit in the battery management system. This circuit is used to collect the voltage of a large number of battery cells. It can significantly reduce the area of the circuit board and reduce the cost, while affecting the measurement accuracy. Not big.
In view of some problems that occur in software simulation and practical application of circuits, this article analyzes their causes and improves them.
The battery is the main power source of electric vehicles. In order to ensure the normal and safe driving of electric vehicles, the battery management system must monitor the voltage data of the electric vehicle battery in real time. The voltage data is obtained through the voltage acquisition circuit and A/D conversion. In order to avoid safety problems caused by local overcharge/overdischarge caused by battery imbalance, the monitoring system is required to accurately measure the voltage of each cell or several cells. If the traditional multi-channel voltage collection method is used, when the number of battery cells is large, the design and implementation of the entire management system will have shortcomings such as high cost and poor consistency. This paper designs a novel multi-channel voltage acquisition circuit based on lead-acid batteries for electric vehicles.
Hardware structure of voltage inspection in battery monitoring system
Generally, electric vehicles are equipped with 10 to 30 batteries, and the single (module) voltage range is 3 to 20V. When the batteries are used in series, the battery terminal voltage will reach more than 200V.
This article proposes a design idea as shown in Figure 1. The design uses a shift switch circuit to sequentially select the circuit under test, and collects single-channel data through A/D to complete data collection. This design approach has the following advantages:
1. The circuit is simple. Simplify the PCB board making and wiring process.
2. Fewer devices are used and the cost is low. The main cost in the acquisition circuit comes from the ADC, and this circuit only requires one ADC.
3. It can solve the problem of poor consistency caused by uneven parameters of chips such as operational amplifiers.
Read recommendations:
Influencing factors of cycle life
The main function of lithium battery protection board
Last article:LR03 battery.Technical content of battery separator paper
Next article:button cell battery cr1620.What are the required characteristics of battery separator technology?
Popular recommendation
lithium ion battery 18650 price
2023-03-2214500 battery manufacture
2023-03-2214500 battery manufacture
2023-03-22home energy storage lithium battery manufacturer
2023-05-10energy storage battery for solar system Processing
2023-05-10703048 1100MAH 3.7V
2023-06-10Coin Battery LR 521
2022-10-15801752 720mAh 3.7V
2022-08-19L1022 10A
2022-10-09601248 300mAh 3.7V
2022-07-01Lithium Battery LQ-1236
2022-08-193.2V 280Ah
2022-10-12Plastic pet muzzle
2022-09-22Alkaline 9V Battery LR61
2022-11-11LR03
2022-08-19NiMH battery pack
2023-06-2518650 lithium ion battery cell
2023-06-25button battery cr2032
2023-06-25li ion 18650 battery pack
2023-06-25AAA Ni-MH batteries
2023-06-25Several precautions to extend the capacity and lifespan of lithium batteries
2024-04-25What are the safety characteristics of lithium-ion batteries and nickel hydrogen batteries respectiv
2024-09-12What is the custom process of 18650 lithium batteries?48v 100ah lifepo4 battery pack
2023-03-28What are the effects of temperature changes on the charging and discharging of lithium batteries
2024-01-31Working principle of supercapacitors
2024-05-28LR921 battery.Advantages of lithium battery UPS power solution
2023-10-14National standard for lithium batteries.18650 lithium battery 2600mah
2023-07-10Lithium titanate battery life and advantages and disadvantages.portable energy storage battery power
2023-04-08Reminder of lithium battery maintenance
2023-06-0218650 battery 3500mah lithium.Which is better, polymer lithium battery or 18650 lithium battery?
2023-10-13