electronaut
Well-known member
A friend and I are trying to figure out how to design the ideal phantom power supply, and we were wondering what might be the biggest advantages.
Specifically:
1) Should a Phantom power circuit be capable of delivering +48V under all loads? (The traditional 6.8K resistors which supply the phantom voltage to the microphone reduce the voltage available to the microphone according to its current requirements. Would it be better to supply a solid 48V, regardless of current draw, to the microphone?)
--or--
2) Are microphones designed specifically to operate at the reduced voltage after their current passes through the traditional 6.8K resistors?
3) What is the highest +48V current draw you've ever seen on a microphone?
4) What other specifications would be part of an ideal phantom power design?
Thanks in advance to anyone who contributes!
E.
Specifically:
1) Should a Phantom power circuit be capable of delivering +48V under all loads? (The traditional 6.8K resistors which supply the phantom voltage to the microphone reduce the voltage available to the microphone according to its current requirements. Would it be better to supply a solid 48V, regardless of current draw, to the microphone?)
--or--
2) Are microphones designed specifically to operate at the reduced voltage after their current passes through the traditional 6.8K resistors?
3) What is the highest +48V current draw you've ever seen on a microphone?
4) What other specifications would be part of an ideal phantom power design?
Thanks in advance to anyone who contributes!
E.