| 摘要 |
The present invention relates to a device and method for detecting whether a turn signal lamp is operated. A device for detecting whether a turn signal lamp is operated according to the present invention for achieving the object of the present invention comprises (1) an electric power input unit for receiving electric power inputted directly or indirectly from an operating power supply for the turn signal lamp; (2) an AC signal detector connected to the electric power input unit to detect an AC component signal in the voltage of the power supply; (3) a filtering unit for extracting only a signal component having a predetermined period and amplitude from the AC component signal detected by the AC signal detector; and (4) an amplifier for amplifying the signal component extracted by the filtering unit.
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