Hey guys (and girls)
I'm using a dual supply condenser microphone amplifier and schmitt trigger with positive feedback, to convert an amplified sinus signal (from mic) to a digital signal. A LTspice simulation of the circuit works perfectly fine, but the physical model doesn't care if there is a voltage supply or not, can anyone see why?
The circuit connections is drawn in Blackboard and is attached as the file "schmitt_trigger.PNG"
(The resistor values and comparator isn't the same in Blackboard as in the physical model, we are using the comparator LM311N, and the resistors shown in LTspice)
Thanks in advance for any help!
I'm using a dual supply condenser microphone amplifier and schmitt trigger with positive feedback, to convert an amplified sinus signal (from mic) to a digital signal. A LTspice simulation of the circuit works perfectly fine, but the physical model doesn't care if there is a voltage supply or not, can anyone see why?
The circuit connections is drawn in Blackboard and is attached as the file "schmitt_trigger.PNG"
(The resistor values and comparator isn't the same in Blackboard as in the physical model, we are using the comparator LM311N, and the resistors shown in LTspice)
Thanks in advance for any help!
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