Patent ID: 9478995
Filing Date: 2016-10-25
CPC Classification: B60L,H01M,H02J,Y02E,Y02T

Claim Text:
1. A battery system comprising: a battery comprising a plurality of secondary battery cells connected together in series; a battery monitor unit for monitoring the secondary battery cells; and a cell-balancing circuit for controlling cell balancing of the battery, wherein the cell-balancing circuit includes: wherein the battery monitor unit specifies which of the secondary battery cells to charge, and outputs respective operation control signals to the voltage converters, wherein the voltage converters are operated based on the operation control signal to charge the secondary battery cells, wherein the pulse generating circuit comprises a plurality of transformers, each transformer corresponding to one of the voltage converters, wherein the pulse generating circuit is constructed to transmit pulse signals generated from the second power supply voltage to the corresponding voltage converter via the transformers, and wherein each voltage converter comprises a magnetic amplifier type converter including a saturable inductor and is configured such that the saturable inductor regulates current flow to the respective secondary battery cell based on a voltage of the respective secondary battery cell.