Professional condenser microphones require a 48-V supply to charge the internal capacitive transducer and power the internal buffer for the high-impedance transducer output. You can use a simple boost ...
In these days of USB mics and microphones phantom powered by broadcast mixers, needing a separate phantom power supply may seem like a trip in the Wayback Machine. But should an engineer find ...
We published a design for a stereo microphone preamplifier with balanced inputs and a phantom power supply. The heart of this circuit was a special Analog Devices IC, the SSM2017. Unfortunately, this ...
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