Published:2011/7/29 2:55:00 Author:Ecco | Keyword: Vehicle, flashing lights, controller | From:SeekIC
The motor vehicle flashing lights controller described in the example is composed of LED light-emitting diodes and control circuit.It can be installedin the rear window of the motorcycle or car, when driving at night, the light-emitting diode is lit like the water cycle; It can grasp people's attention.
Working principle
The motor controller circuit is composed of the LED drive circuit and oscillator, it is shownas Figure 7-29.
When the voltage of the two ends of C is lower than 3.4V, which is the reference voltage of N2, the output of N2-N8 is in low level, VLl-VLl8 are off.
When the voltage of the two ends of C ishigher than 43V, the output of N2 is in low level, and the output of N3 is in high level,VLl-VL3 are off, VL7-VL9 are on.
When the voltage of the two ends of C ishigher than 5.2V, the output of N3 is in low level, and the output of N4 is in high level,VL4-VL6 are off, VL7-VL9 are on.
When the voltage of the two ends of C ishigher than 6V, the output of N4 is in low level, and the output of N5 is in high level,VL7-VL9 are off, VL0-VL2 are on.
When the voltage of the two ends of C ishigher than 6.8V, the output of N5 is in low level, and the output of N6 is in high level,VL0-VL2 are off, VL3-VL5 are on.
When the voltage of the two ends of C ishigher than 7.7V, the output of N6 is in low level, and the output of N7 is in high level,VL3-VL5 are off, VL6-VL8 are on.
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