US Patent 9500691 Apparatus and method for detecting disconnnection of lamps

An apparatus and method for detecting a disconnection of lamps are provided. The apparatus includes a power supply that is configured to supply power to a vehicle and a controller. The controller receives operation power for at least one lamp mounted within the vehicle and supplies the operation power to the at least one lamp. In addition, the controller measures an inrush current value generated from the at least one lamp for a plurality of time intervals and detects the disconnection of the at least one lamp based on the inrush current value.