Mosaic
Well-Known Member
Normally Linear amplifiers lose a lot of power into heat.
What are the possibilities of using a switching FET output to recreate the apparent audio signal?
Say, run the switching PWM FET @ around 48Khz and create an LCR crossover which act as a low pass pi filter to reproduce the apparent linear audio waveform to drive the speaker coils?
CDs rebuild audio from PCM already at 44.1Khz data encoding.
Might be a nice experment to try.
EDIT: Seems to have been done already.
https://www.electro-tech-online.com/custompdfs/2003/09/AN1042-DPDF.pdf
What are the possibilities of using a switching FET output to recreate the apparent audio signal?
Say, run the switching PWM FET @ around 48Khz and create an LCR crossover which act as a low pass pi filter to reproduce the apparent linear audio waveform to drive the speaker coils?
CDs rebuild audio from PCM already at 44.1Khz data encoding.
Might be a nice experment to try.
EDIT: Seems to have been done already.
https://www.electro-tech-online.com/custompdfs/2003/09/AN1042-DPDF.pdf