The difference between battery BMS power management system and battery protection board

The battery protection board and the BMS power management system are not easily distinguished due to their overlapping functions. In fact, there are obvious differences between the battery protection board and the BMS management system. Although both seem to be a'circuit board', in fact, the two There are obvious differences in performance between them. BMS power management systems are usually used in power batteries, and battery protection boards are mostly used in digital products. Battery protection boards usually have a single performance, and overdischarge, overcharge, and overcurrent. Provide disconnect protection. The BMS power management system is based on the function of the battery protection board, adding more accurate and more battery management functions; the battery protection board needs to have regular functions. Balance during charging: When charging, when the voltage of any battery is higher than all When the voltage is averaged, the protection board starts the equalization protection. Voltage fixed-point equalization: The lithium-ion battery protection board is set to start the equalization at a voltage point, which is only performed at the end of the battery charging, and the equalization time is short. Static automatic balance: During the process of charging or discharging, even if the battery is in a static state, when the voltage is inconsistent, the lithium-ion battery protection board will start the balance protection until the voltage remains the same. The transfer type is to transfer a large-capacity battery to a small-capacity battery by means of energy storage, and to check the capacity of the battery for balance, which is divided into capacity constant balance and capacity fixed-point balance. Battery Management System Battery Management System (Battery Management System) is abbreviated as BMS, which has the function of measuring battery voltage, and also includes battery protection function, battery equalization function, battery reserve function, energy calculation function, network communication function, etc. The battery management system can prevent the battery from being over-discharged, over-charged, over-temperature and other abnormal conditions. Because lithium-ion batteries may damage battery performance and even explode under severe overcharge and overdischarge conditions, the battery management system exists to monitor, protect, and manage lithium-ion batteries in a balanced manner, thereby improving the work of lithium-ion batteries effectiveness. The difference between battery BMS power management system and battery protection board Li-ion battery protection board and battery management system both protect lithium-ion batteries. The differences between them are: 1. The lithium-ion battery protection board is composed of IC, MOS tube, resistor and capacitor components, and is an important component of lithium-ion battery. The battery management system can be edited and has its own battery management software, which is relatively smarter, equivalent to the brain of a lithium-ion battery, for control purposes. 2. The lithium-ion battery protection board has important uses in the field of 3C lithium-ion batteries and power lithium batteries, and the battery management system is applied in the field of power lithium batteries. 3. The battery management system works better with respect to the battery protection board, but its performance at low temperatures is unstable. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: Understanding the manufacturing process of lithium-ion battery pack PACK in one article