Questions tagged [phantom]

Symbolically applies to audio or RF lines that have a clean DC voltage applied to them through a resistor, as power for the source of the signal. It is usually in milliamps and 1.5 to 48 volts. Filters at both ends isolate the power from the signal. It avoids the need for a separate power feed, or batteries.

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Convert 3V unbalanced microphone to 48V phantom balanced

I have the following circuit in an existing product, which has a microphone, power switch, LED indicator, and is powered by 2 AA batteries: simulate this circuit – Schematic created using ...
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Simple parts to stop “phantom power” from entering circuit

I have a circuit here which can sometimes program a microcontroller. I think a big problem here is that "phantom power" is introduced in the circuit because when I'm ready to program it, I plug the ...
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What is the lowest current a phantom powered mic might use?

I'm building a P48 (phantom power) supply and I am adding some warning lights for potential open and short circuits. In order to figure out what voltage I'm going to compare to for the open circuit, ...
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Can I use 48 V DC power supply to make my own phantom power?

I want to know if I can convert a 48V DC power adapter that I have at home to use it as phantom power for my condenser microphone. I only want to add some sockets that can support a microphone. ...
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What is the maximum length of xlr cable from a Canon XA10 to a microphone without losing quality of sound [closed]

What is the maximum length of XLR cable from a Canon XA10 to a microphone (say a Rode NTG-2, using phantom power) without losing quality of sound.
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How to calculate power used by my microphone?

I want to plug a microphone into my camcorder. The battery from the camcorder will provide the power to both the camcorder and microphone. The specifications for the battery are as follow: capacity = ...
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165 views

Locality of ghost/phantom voltages?

I know about the ghost voltage concept. As far I as understood for example in an SMPS there is "Y" EMI filter and that little capacitance creates a RC voltage divider and we see the ghost voltage high ...