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High speed warning device

2016-02-21 13:10  
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The speed warning device circuit consists of four parts, namely, A1, A2, A3, A4. Wherein A1 is the function and regulation of the spark coil amplification signal. A2 is to convert the frequency of the output voltage a voltage proportional to the generator speed.

High speed warning device 
 

A3 tachometer function is compared with a reference voltage according to the set speed and turns on the output  transistor . A4 is an amplifier. Its function is to exceed the set speed when the vehicle is issued a warning tone.

 



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