Ave_Rapina
Full Member level 2
is 180w rms good
Here is an power amplifier that I build 2*180w RMs
The amplifier has Dc control protection/start delay , Power level using lm 3915
Fotos and schematics and pcb in here
Very good amplifier run more than 2 years in a bar without any problem.
Alimentation +-52V to +-60V capacitor 40000uf or 60000uf/63V low ESR
Second alimentation 12V for the protection and led bar.
All tensions can be outputed from the same transformer if you build one
I recomend an Toroidal one
The osciloscope image is at 60% of power mesured with an 8 ohm load but I can pull out all power becouse the resistor that simulates the charge goes in flame
In the osciloscope image the probe is 10x attenuated
The led bar is simple just use an lm 3915 not dificult
Soon I put the layouts and component side
Any question please advise
Regards
Here is an power amplifier that I build 2*180w RMs
The amplifier has Dc control protection/start delay , Power level using lm 3915
Fotos and schematics and pcb in here
Very good amplifier run more than 2 years in a bar without any problem.
Alimentation +-52V to +-60V capacitor 40000uf or 60000uf/63V low ESR
Second alimentation 12V for the protection and led bar.
All tensions can be outputed from the same transformer if you build one
I recomend an Toroidal one
The osciloscope image is at 60% of power mesured with an 8 ohm load but I can pull out all power becouse the resistor that simulates the charge goes in flame
In the osciloscope image the probe is 10x attenuated
The led bar is simple just use an lm 3915 not dificult
Soon I put the layouts and component side
Any question please advise
Regards