Zak28
Advanced Member level 2
I have a signal which can be from 40-90v and the power audio amp takes up to 5v signals.
It seems logarythmically scaling the high voltage signal is the ideal way to get it to the amp.
There are very expensive high voltage and high power oamps out there but they are huge and very expensive, whats a minimalistic method to get the signal logarythmically scaled?
Perhaps there is a transistor logarythmic scaling circuit but Im not sure which is ideal.
It seems logarythmically scaling the high voltage signal is the ideal way to get it to the amp.
There are very expensive high voltage and high power oamps out there but they are huge and very expensive, whats a minimalistic method to get the signal logarythmically scaled?
Perhaps there is a transistor logarythmic scaling circuit but Im not sure which is ideal.