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:
Consideration of input and output power of polymer battery chargers.CR2032 button cell battery
Master the three major characteristics of lithium iron phosphate battery.48v solar power energy stor
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
18650 battery pack company
2023-05-093.2v 20ah lifepo4 battery
2023-03-22200ah lifepo4 battery pack 24v
2023-05-0914500 battery sales
2023-03-2218650 3.7v battery
2023-03-22Coin Cell BR 1220
2022-10-15401030 90mAh 3.7V
2022-08-19LR20
2022-11-1612V 23A
2022-10-09Ni-MH AA700mAh 1.2V
2022-07-01601525 170MAH 3.7V
2023-06-12801538 480MAH 3.7V
2023-06-10LR14
2022-08-19Coin Battery CR 2450
2022-09-27R03P
2022-08-19CR2032 battery
2023-06-2518650 battery cell
2023-06-256F22 carbon battery
2023-06-2518650 battery pack Product
2023-06-25Carbon battery
2023-06-25Charging precautions for forklifts.6LR61 battery
2024-05-29Do you know the three major characteristics of lithium iron phosphate batteries.102450 polymer batte
2023-08-18Characteristics and applications of lithium-ion batteries.18650 lithium ion battery 3.7v
2023-09-203.2v 25ah lifepo4 battery cell.About 18650 cylindrical lithium battery
2023-11-13Lithium Battery Detection Methods
2024-11-14Method of electric vehicle high Lithium battery pack.CR2016 battery
2023-06-17What are the main materials of lithium batteries analyzed?CR1616 battery
2023-06-21Why are imported cells more expensive than domestic cells?1.2V NiMH batteries
2023-08-02Prediction of five battery technologies in the future
2022-11-14Analysis of Lithium iron phosphate industry technology and product status.lithium polymer battery
2023-07-24