"Phantom Power" in use in the recording industry is ALWAYS 48V.
Some types of mics use other types of power like T-power or an internal battery, but this is not "Phantom Power".
condenser mics need 48V phantom power, make sure that the 48v is on, then check to see if the R is on and the I is on on your channel and see if they are wired to the master output.
Unless they have a battery built in, if it's a pro condenser microphone with an XLR cable and it doesn't have a special funky power supply just for it, turn on the 48V phantom power. It won't work otherwise. Dynamic mics will ignore phantom power generally.
The MXL 990 will not work directly into your computer as it needs "phantom power." Phantom Power is 48v run from an interface or mixer to the microphone to power it. Most condensers either need phantom power or a wall adapter plug or they can receive no power.
When looking for a 48v phantom power audio interface for high-quality audio recording, consider features like high-quality preamps, low noise floor, sufficient input/output options, compatibility with your recording setup, and durable construction.
To set up a phantom power supply for a condenser microphone, first ensure that the microphone is compatible with phantom power (typically 48V). Connect the microphone to the input of the phantom power supply using an XLR cable. Then, connect the output of the phantom power supply to your audio interface or mixer, also using an XLR cable. Finally, turn on the phantom power on the supply to provide the necessary voltage for the microphone to operate.
A 48V power source is used to power an SDH pump to allow for sufficient electricity to keep the motor moving at maximum efficiency. These pumps are used in a variety of agricultural and industrial applications.
The one thing you need to know when using a condenser microphone rather than a dynamic mic is that the condenser needs something called phantom power. This is a small charge of 48v that powers the microphone. Thsi charge comes generally from the mixer, which is usually either a button on or by the channell inputs, or a switch by the power switch. Also if your mixer does not have phantom power, or you are trying to hook up the mic directly to something like a a computer. you can buy an external phantom power source. Usually some sort of box.
because in this voltage harmonics are not present
In a 48V DC system you ground the positive to 0V so the live wire will be -48V.
always think of any supply system so : RED = MOST POSITIVE BLACK = MOST NEGATIVE in a telecom system the -48V supply is refferenced to ground and earth, so the supply wire is NEGATIVE, this means a DC supply most positive signal the RED wire, go to EARTH = ZERO, the BLACK wire is the MOST negative, so in this case it is -48V
If it's a motor, it may just run backwards. If it uses any kind of solid-state electronics, you will very, very, very likely blow the equipment or the power supply. Reversing polarity of power supplies? Just don't do it.
-48V is used in the telecommunication equipment. The source of the -48V is a bank backup batteries that are always kept charged in the event of power loss. The typical range of voltage is -36V to -60V in this application. Why negative voltage is used is probably tradition as the modern power supplies that use this voltage are isolated and run the same as long as the positive terminal is 48V above the negative terminal.