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Car Speeding Lights

2014-12-16 01:13  
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The op amp car speeding indicator comparator is used to compare a dc converter output threshold voltage. When the input frequencies above 100 Hz, the circuit of the LED flashes. Frequencies above 100 Hz, C2 can be reduced charging time, increase the LED blink rate. Flashing frequency increases, increase the average current terminal 3 out.

Overspeed indicator 
 

IC = LM2907 or LM2917.

 



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