Hi,I am relatively new to this sort of thing but have been playing with logic circuits. I am trying to create a circuit that when a button is pressed, the LED lights for one second, no matter how long the button is pressed for. At present thought it would be easy to charge the capacitor via a 'NOT' gate, then when the button is pressed, the output from the not gate disappears but is still supplied for a short time from the capacitor. Both the button and capacitor have inputs to a 2 input 'AND' gate, if both inputs are high then the transistor turns on and lights the LED, until the capacitor has discharged!!
Seems simple enough I thought, but this circuit just keeps blowing the 'NOT' gate chip. Is there a better circuit or can anyone say what I am doing wrong!!
Seems simple enough I thought, but this circuit just keeps blowing the 'NOT' gate chip. Is there a better circuit or can anyone say what I am doing wrong!!
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