Maybe you have worked with capacitive microphones already, but most of you don’t know what is going on inside them. This causes many ambiguities. In this video you will see a full explanation about electret microphones. Also you will get answers for these questions below.
How a capacitive microphone works?
What is inside a microphone?
Why there is a MOSFET inside a microphone?
What is a voice signal?
How to interface a microphone?
Are microphones polarized components?
Do microphone have polarity?
How to know which terminal of microphone is negative or positive?
How much current can pass through a microphone?
What is difference among capacitive, condenser and electret microphones?
How to see microphone signal on oscilloscope?
Here in this video you will get answer of these questions