Condenser Mike

Condenser microphone (mic) is a transducer that uses a capacitor </span > </strong > (or condenser) to convert acoustical energy into electrical energy. The sound waves result into electric signals that can be used to drive a circuit or device. The pin connected to the case of mic is connected to ground and the other pin gives the output.</p >

There are two methods of extracting sound signals from mic, namely, DC biased and radio frequency (RF). In DC biased method, the charge within the capsule, i.e.</i > , diaphragm and fixed plate assembly, remains constant. The voltage variations, across the capsule, are passed through a series resistor and are further amplified. In RF method either the capacitance change modulates the amplitude of output of a low RF oscillator or the capsule is a part of a resonant circuit which modulates the frequency of output. Learn about working and internal structure of a condenser microphone.</p >