Hi everyone. Hopefully i'm in the correct forum.
I'm building a condenser mic and I supply it with about 80V dc from an Hex Inverter cmos circuit. The circuit I followed is attached. The cmos is supplied by +12V dc. I wonder if there is a circuit that provides -80V dc from the same +12V dc source -since it's provided by phantom power -(maybe by using the same circuit and changing something to give me negative bias).
I don't think that reversing the diodes' bias would work.
Thanks in advance
Ps.The voltage regulator and trimmer in the voltage input of the circuit are ommited.
I'm building a condenser mic and I supply it with about 80V dc from an Hex Inverter cmos circuit. The circuit I followed is attached. The cmos is supplied by +12V dc. I wonder if there is a circuit that provides -80V dc from the same +12V dc source -since it's provided by phantom power -(maybe by using the same circuit and changing something to give me negative bias).
I don't think that reversing the diodes' bias would work.
Thanks in advance
Ps.The voltage regulator and trimmer in the voltage input of the circuit are ommited.
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