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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Phantom power voltage source high resistor [closed]

In PCB design I every time feel fear in my power trace included high impedance section or not? I've shocked on about 6k resistance putted on +48v of phantom power. I've heard this large resistor is ...
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Help understanding Phantom Power

I understand that 48 V is applied to both sides of the microphone signal with a 6.8k resistor (typically) as shown in this image: I'm looking to add a device INLINE with a microphone that I want to ...
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Using two USB 5V sources to toggle a AC relay for a hibernating computer w/ high phantom load

I have a PC w/ a great processing-to-power-consumption ratio, however its idle consumption and power-off power draw (phantom load) is far from ideal. I could use an external switch to manually toggle ...
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How to buffer balanced (XLR) audio signal while forwarding phantom power [duplicate]

Background: I have a condenser microphone, which requires +48V phantom power from my mixing desk. The microphone has a source impedance of "<200 Ohm" as per manufacturer. As you may ...
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Risk of long-term shorting XLR cable

I'm adding a 'mute switch' into my XLR cable. To mute an XLR cable/Phantom powered microphone you temporarily connect pin 2 and 3 in the cable to short the connection. I have seen plenty of youtube ...
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Making a phantom powered power switch (not mute switch) with LED indicator

I want to create an XLR inline power switch (with indicator) so that I can turn my phantom powered microphone on and off as I please! I have found a few guides online that explain how to create a ...
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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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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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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 ...
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