CURRENT COMPENSATION MODULE, CHARGING APPARATUS, AND CHARGING APPARATUS CONTROLLING METHOD

摘要

A current compensation module, a charging apparatus, and a charging apparatus controlling method are disclosed. The current compensation module is used for controlling an outputted charging current in order to charge a battery module. The current compensation module includes a transition unit, a proportional controlling unit, and an integral controlling unit. The transition unit allows an internal signal of the current compensation module increasing from a first voltage. When the internal signal attains to a second voltage, the proportional controlling unit will output a proportional controlling signal to adjust the charging current. When the charging current attains to a rated output current, the integral controlling unit incorporates with the proportional controlling unit to output a proportional-integral controlling signal in order to control and adjust the charging current for the battery module, and to suppress the output overshoot current of the charging apparatus.

主权项

1. A current compensation module employed in a charging apparatus, so as to output a control signal to a driving circuit in order to adjust and control a charging current, which is outputted from a power conversion module to a battery module, wherein when the charging apparatus outputs the charging current, there can be operated in a first start-up phase, a second start-up phase, and a third start-up phase, the current compensation module comprising:
a transition unit, having an operation of a clamping control for implementing of the current compensation module and the charging apparatus, wherein when the charging apparatus is operated in the first start-up phase to output the charging current, the transition unit is employed for the operation of the clamping control, to make an internal-signal voltage in the current compensation module increasing from a first voltage; a proportional controlling unit, electrically connected to the transition unit, wherein when the internal-signal voltage attains to a second voltage, and that the charging current is lower than a rated output current, the charging apparatus is operated in the second start-up phase, thus the proportional controlling unit will output a proportional controlling signal to control and adjust the charging output current of the power conversion module through the driving circuit; and an integral controlling unit, electrically connected to the proportional controlling unit and the transition unit, wherein when the charging current attains to the rated output current, the charging apparatus is operated in the third start-up phase, thus the integral controlling unit incorporates with the proportional controlling unit to output a proportional-integral controlling signal to control and adjust the power conversion module through the driving circuit, and to output a constant current to charge the battery module