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What Do you Need to Know about Battery management systems (BMS) PCB?

Battery management system (BMS) includes different concepts, and today, we cannot afford to not educate ourselves about them.

The BMS refers to a special mechanism that completely handles the battery cells present in an electrical arrangement so that they can tackle large amounts of voltage and current in a set period of time, especially under unfavorable and stressful conditions. 

How does BMS board Battery Protection Board work?

Battery management systems BMS basically vary in each project or execution. The reason is that you cannot follow a particular set of guidelines for this purpose. There are some prominent factors that make them vary all the time! Let’s see them below!

  • How complex the battery pack you are using makes the battery management system different.
  • Is it affordable or expensive? The pricing is also an important factor here!
  • Is the battery you are using easy for your projects and applications? 
  • Are there any safety concerns or application risks that you need to look for in this particular battery pack?
  • Sometimes the authority guidelines and industry standards can also affect battery management systems. BMS varies in different applications. 

We cannot ignore the two highly important features of the battery management system BMS at this point. There have been cases when PCB producers were unable to consider these two aspects for serving positive results from their projects.

So one of the crucial aspects is battery pack protection management, and the other is battery pack capacity management. To further study battery pack protection management, we need to understand that battery pack protection management includes two important areas to consider.

One is the electrical protection which is for securing the battery from risks and damages through SOA. The other is thermal protection for complete and flawless regulation of the temperature of the battery to protect it from overheating. 

Contrasts between BMS & PCM

Bms board
Bms board

We are going to see how BMS and PCM differ from each other so that you dont have to struggle with their features and specific applications in the future. For the battery management system BMS, we need to divide them into two sub-groups. One group is the protection circuit module, aka PCM, while the other is a battery management system. Both these factors are important for the entire protection and well-being of a lithium battery. 

Characteristics of the PCM

In this section, we are going to decipher PCM and its features in detail. Basically, the purpose of a PCM is to make the charging and discharging of batteries like lithium batteries flawless. PCM includes different components that come together to make its role feasible and impeccable.

The PCM is also responsible for balancing the voltage between the battery cells when we have sufficiently charged the battery. The battery voltage needs to be fixed, or else there are possible chances of electrical failures and short circuits. Sometimes abrupt battery voltage fluctuations can also cause overheating that leads a battery towards complete failure. 

Characteristics of Battery Management Systems (BMS)

BMS is actually the entity that manages the function of a battery. Whether it’s charging or discharging, BMS handles it all. However, there is no doubt that in some areas, it functions similarly to PCM, but due to its efficient and advanced nature, it has been given more edge over PCM by the experts. BMS is undoubtedly more beneficial in terms of battery protection and handling than PCM.

 It can easily transmit data and regulate the battery’s functions, unlike PCM. There are some important parts present in a BMS that make this all happen. These are an MS communication module which is wireless, a control module, and collection and display modules are also associated with BMS. When we talk about minor batteries, we will see that, in most cases, PCM and PCB are present in them. Therefore their common applications are power tool batteries and mobile phone batteries. BMS, on the other hand, has much bigger applications than PCM. It is important for drones where battery monitoring and data transmission are expected.

Electric Vehicle BMS board Battery Protection Board

Not to forget that EVs cannot work without BMS on all counts. The credit goes to their features that make keeping the EVs intact in terms of their performance in the long run for the users. The BMS provides real-time data for the following factors: 

  • It monitors and regulates the voltage
  • Besides, it controls the temperature and provides protection from thermal damage
  • It monitors the Current and copes with real-time current fluctuations
  • State-of-charge (SoC) is also a factor that BMS is supportive to 

There is no doubt that system like BMS are inevitable for the well-being of small to big batteries. For monitoring and controlling the charging of the battery and protecting it from other risks and concerns. BMS is also helpful in terms of preventing voltage and power losses. 

Following are the different ways that a BMS functions: 

  • It deeply regulates each cell so that it gets sufficient voltage and also saves it from overcharging. 
  • Besides, it regulates and monitors the individual cell temperature to protect it from overheating and thermal risks. 
  • It is also responsible for lowering the current fluctuations and current surges that can be fatal on all counts. 
  • BMS is also good for optimizing the parameters for charging per different devices. 
  • This system can even turn off the battery if it points out any anomaly and also when the battery behaves in a peculiar manner to ensure complete safety and protection. 

After reading about the functions and benefits of a BMS, you will come to know that there is no better system than a BMS to ensure more durability and longevity of the battery.

Plus, this system can easily protect the battery from possible thermal damage and current spikes. Experts believe that with the passage of time, upgrades in the BMS will prove to be handier for the producers and the users.

Different techs like AI and ML can also instill some attributes to BMS to make it more of an efficient system that meets the futuristic quality standards on all counts. 

Lithium BMS board Battery Protection Board

Battery Protection Board
Battery Protection Board

The battery protection board BMS is a special mechanism that ensures battery protection. There are different circuits that come into action to make its performance possible. The role of a BMS is to not only regulate the current and voltage of the battery but also monitor the charging and discharging to avoid mishaps.

It also makes charging and discharging possible under a certain fixed temperature to protect the battery from thermal fluctuations. Lithium battery BMS protection board is different in terms of its components. MOS switches, resistors, and ICs are present in such boards. These boards use MOS switches to automatically turn on and off the battery when something unusual happens during its function. 

Functions of the lithium BMS board Battery Protection Board

As the name suggests, BMS is for complete protection of the lithium battery. Below we are going to see the four major functions of this system in detail. 

1) Overcharge protection process:

The first role of this BMS is to prevent overcharging to completely protect the battery. It happens when we have sufficiently charged the battery, and there is no need to charge it further. A special MOS switch makes this happen and provides the battery with an overcharge protection function by turning the battery off on complete charging. 

2) Over-discharge protection process:

Sometimes battery problems occur due to extreme discharging. Therefore there must be a system that prevents this from happening because it makes the battery weak. A special MOS tube is there in the BMS to make it stop. It is the reverse action of the BMS to the overcharge protection. 

3) Overcurrent protection procedure:

A battery needs to work with a sufficient amount of current, and in case of extra current supply to the battery, it can be irreversibly damaged. Therefore BMS’s other important role is to stop it from happening and ensure battery protection. When BMS points out overcurrent, it will divert the battery towards normal functioning by isolating it from its load. In this case, we can easily continue charging the battery multiple times.

Role of a BMS Board Battery Protection Board

The BMS is important for the protection, current-voltage regulation, and monitoring of a battery. From preventing current and voltage surges to automatic switching ON/OFF the battery, a BMS is crucial for the sustenance of all types of batteries. With BMS, overcharging, over-discharging, and extra current supply can be prevented successfully. 

Why do lithium-ion batteries require a BMS board Battery Protection Board?

The lithium-ion batteries are an important component of different electronics today. Therefore BMS has become more important for them than ever. For increasing the longevity and efficiency of these batteries, BMS will prove to be a great option. Since lithium-ion batteries are mostly used in vehicles, this special mechanism can protect the overall vehicle from damage as well as the single battery. For short circuit prevention, protection against current surges, and overcharging, lithium-ion batteries cannot survive without a BMS. 

Why do automobiles require a BMS board Battery Protection Board?

Vehicles are sturdy, and therefore, they need to perform efficiently in the long run. A battery can make this possible for them. But due to frequent usage over the years, our vehicles and their batteries can undergo damage. Sometimes small problems that we ignore regarding batteries grow into huge blockades later. Due to this reason, a BMS is important for the health of a battery to detect problems in time so that you can solve them for the sake of your vehicle as well. 




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