G galed New Member Dec 27, 2009 #1 I need a class AB or D audio amplifier that can output at least 5W on a low voltage supply (3.3V would be ideal, 5V is fine, i'd like to keep it below 7.5) Anybody know of such a thing?
I need a class AB or D audio amplifier that can output at least 5W on a low voltage supply (3.3V would be ideal, 5V is fine, i'd like to keep it below 7.5) Anybody know of such a thing?
Nigel Goodwin Super Moderator Most Helpful Member Dec 28, 2009 #2 Try doing the sums - you need either: 1) An inverter to increase the supply voltage. 2) A VERY, VERY low impedance speaker. 3) A VERY, VERY low impedance speaker coupling transformer.
Try doing the sums - you need either: 1) An inverter to increase the supply voltage. 2) A VERY, VERY low impedance speaker. 3) A VERY, VERY low impedance speaker coupling transformer.