Preamplificador de audio para un altoparlante autoamplificado

01:09:47

published 12 years ago

hurz

12 years ago

The negative supply voltage is floating and has no direct connection to ground.

thebugger

12 years ago

Remove the negative supply and replace it with ground. Also take the output from the first stage from the collector rather than the emitter and it should work. Also why are you biasing the input when you're running it through a decoupling capacitor. One more thing. Your amp works perfectly up to 200mv input (around 6V pk-pk output) and is very well designed topology. I consider using it in some projects of mine. Just follow the tweeks I suggested and you'll bring it to its full potential. Ill just use bc550 low noise transistors and lm7815 and everything should be peachy ;)

jeffers

11 years ago

Thank you for your feedback. This is my first circuit I posted

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.