Patent ID: 9455585
Filing Date: 2016-09-27
CPC Classification: H02J

Claim Text:
1. A charging apparatus comprising: a power supply unit supplying charging power; a charging unit transferring the charging power from the power supply unit to an external charging target device; a charge controlling unit controlling a charging state of the charging unit; a display unit displaying the charging state based on a control by the charge controlling unit and stopping a displaying operation when the charging target device is in a fully-charged state; and a delaying unit blocking a current supplied to the display unit and delaying the stopping of the displaying operation of the display unit for a preset time when the charging target device is recharged in the fully-charged state, wherein the display unit is a monochromatic light emitting diode, wherein the delaying unit comprises: wherein the second resistor, the third resistor, and the capacitor determine the delay time together with a gate-source threshold voltage of the switch.