need to get rid of oscillating voltage...

Thieaux

Nov 5, 2006
14
Joined
Nov 5, 2006
Messages
14
the input im using for transistor inverter is constantaly oscillating from 1 to 3 volts i need to get it to 0....cause im using the transistors output for a 555 timer, since its oscillating the timer keeps going off

 

audioguru2

Apr 6, 2004
12,026
Joined
Apr 6, 2004
Messages
12,026
Hi Thieaux,
In your other post I attached a transistor inverter with a voltage divider on its base that should trigger with an input voltage exceeding 3.2V but you said it didn't fix your problem. So I explained that changing its 100 ohm resistor to 39 ohms would make it trigger with an input voltage exceeding 6.2V. Here it is with the voltages at the trigger point marked:

View attachment 40025

 
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