Views: 0 Author: Site Editor Publish Time: 2023-11-01 Origin: Site
Li-ion battery charger are designed to charge Li-ion batteries and allow them to be reused. Li-ion chargers can monitor the current, voltage, and temperature to regulate the charging process. Li-ion battery charger have multiple charging phases, including:
Trickle charge:This stage is typically used when the battery voltage (VBATT) is low, such as when the battery is deeply discharged or disconnected. During trickle charge, the charger sources a small current to charge the battery pack’s capacitance.
Pre-charge:In this stage, the charger begins to slowly charge the battery so that VBATT slowly rises at a safe speed.
Constant-current (CC) charge:CC charge, also called fast charging, is when the battery can safely handle larger currents. This stage continues until VBATT reaches its full or floating voltage.
Constant-voltage (CV) charge:This stage guarantees safe operation. The charger IC monitors VBATT during CC charging, then switches to CV charging once VBATT exceeds the battery cell voltage in the pack.
Charge termination: Charge termination denotes when charging is complete, and VBATT begins to decay.
NASN Li-ion charger and other Li-related chargers can often incorporate protection features such as over-voltage protection (OVP), short-circuit protection (SCP), and battery voltage protections. In addition, they allso have configurable protection thresholds, limits, and values, which allow them to accommodate a wide array of BMS applications.