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Electret Microphone in Pspice Library

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MikeMl

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Start by Googling: "Spice model for electret microphone"
 

audioguru

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Why are you simulating a microphone?? A mic simply produces an output signal like the signal sources in Pspice do.
Why are you simulating the extremely simple circuit that is just an on-off switch controlled by sounds??
 

master1923

New Member
Why are you simulating a microphone?? A mic simply produces an output signal like the signal sources in Pspice do.
Why are you simulating the extremely simple circuit that is just an on-off switch controlled by sounds??
What can I use as an equivalent to a microphone? Actually, this is our homework, we will get the pspice to see the branch currents, then we will get the printed circuit board with the isis / ares.
 

alec_t

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audioguru

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If you have not learnt what a microphone does then read about it picking up sounds that we can hear between 20Hz to 20kHz at low whisper levels up to high screaming levels and it producing an AC signal.
Then use an AC signal source in Pspice that produces those different frequencies and those different levels.
You will see that the transistors circuit is a simple switch: sounds turn it on and no sounds turn it off.
 
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