I've been building up my knowledge towards this, starting with comperators (understanding signal generation), pre-amps, power-amps, resistor networks etc...
Right now, I'm at a state, where I have an power amplifier stage where the output I can characterize as
- 4V peak-to-peak swing
- 125mA output
Something like this:
The speakers themselves are very lame, the sound quality is not important, what's important is that I learn how to drive them.
And yet, if I connect things the way I showed you, cap->speaker->ground, nothing happens.
- What am I missing? Is there some piece of the schematics that is implied, customary to connect but is usually omitted when creating circuit diagrams?
- If not.. well, any pointer is appreciated why the speaker won't...speak.