| 摘要 |
PURPOSE: A displaying apparatus for a U-turn signal is provided to inform a left turn signal and the U-turn signal separately of a following vehicle by forming the displaying apparatus and lighting the apparatus in several ways. CONSTITUTION: A displaying apparatus for a U-turn signal comprises a power unit(1), a level unit(2), a constant voltage unit(3), an oscillating unit(6), a switch(12), a microprocessor(5), an LED(Light Emitted Diode) driving unit(8) and a displaying device of the U-turn signal(9). The power unit supplies regular voltage. The level unit drops output voltage of the power unit to lower voltage. The constant voltage unit supplies constant voltage after changing output voltage of the level unit to drive the microprocessor. The oscillating unit generates and supplies driving frequency of the microprocessor. The switch supplies an output order of the U-turn signal for the microprocessor according to an operation of a driver. The microprocessor stores a program to light LEDs of the displaying device of the U-turn signal in several ways. The microprocessor outputs a control signal to light the displaying device of the U-turn signal when the output order is inputted from the switch. The LED driving unit drives the displaying device of the U-turn signal according to the control signal of the microprocessor. The displaying device of the U-turn signal is installed to a rear portion of a vehicle as LEDs and lighted by a driving signal of the LED driving unit to inform the U-turn signal of a following driver. Therefore, an accident at the intersection is reduced.
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