Patent ID: 9225178
Filing Date: 2015-12-29
Classification: H02J

Abstract:
1. A charging apparatus comprising: a first communication terminal configured to connect with a second communication terminal of a battery device including two or more battery cells, and configured to receive a signal for controlling charging of the battery device from the battery device via the second communication terminal; a detection unit configured to detect a voltage level of an input signal input in the charging apparatus from the battery device via the first communication terminal and the second communication terminal; a signal switching unit configured to connect between the first communication terminal and the detection unit, and configured to change the voltage level of the input signal input in the charging apparatus from the battery device via the first communication terminal and the second communication terminal; and a charging control unit configured to use a first detected voltage level which is detected by the detection unit before the signal switching unit changes the voltage level of the input signal and a second detected voltage level which is detected by the detection unit after the signal switching unit changes the voltage level of the input signal to control charging of the battery device.