METHOD TO REUSE THE PULSE DISCHARGE ENERGY DURING LI-ION FAST CHARGING FOR BETTER POWER FLOW EFFICIENCY

摘要

A battery charger for charging a battery with voltage from an input supply and method for using are disclosed. In one embodiment, the battery charger comprises a power path to drive the battery during a pulse charging sequence in a first mode and to reverse power flow from the battery when operating in a boost mode during the pulse charging sequence and an energy storage component coupled to the power path to capture pulse discharge energy during the pulse charging sequence when the circuit stage is operating in the boost mode.