VARIABLENESS CHARGE CURRENT CONTROL APPARATUS AND METHOD FOR LI-ION BATTERY

摘要

The present invention lithium-relates to a variable charge current control apparatus and method for ion battery, conventionally, lithium - when the cell capacity of the ion battery has been upgraded, to increase the charging current to redesign the charger for fast charging or there is a problem in that it takes a longer time for charging. Accordingly, the invention is a lithium-ion battery by detecting the charge state of the battery pack having a first micro-controller for outputting a format for the communication protocol, the SMBUS proper charge current and the charge current in accordance with the current thereto; The second to the first to receive the appropriate charging current and charging current from the current input to the microcontroller compares the proper charge current and the charge current output to the current duty ratio is variable pulse width modulated signal of the charge control signal in response thereto in the battery pack including a micro-controller includes a charging section for outputting control signals generated by the constant current according to the charge control signal of the second micro-controller, to convert the direct current voltage of a predetermined level to the appropriate level of DC voltage to the charging voltage of the battery pack By configuration, all the lithium-charging can be carried out at the same time with respect to the ion battery, which causes an effect that can be shared use a lithium ion battery charger