A Novel Lead-Acid Battery Equalization Circuit Based on Multiple Planar Transformers

Due to the defects in the producing procedure, series storage battery inevitably presents inconsistency. When being charged, high voltage battery of battery pack is easy to be overcharged; when being discharged, low voltage battery of battery pack is easy to be excessively operated. As the charge-discharge cycle of storage battery pack continuously increases, the inconsistency is also increased, which would greatly shorten the battery lifetime. In this work, a novel battery equalization circuit was realized to dynamically adjust the battery energy. This circuit could significantly reduce the inconsistency of a battery pack.