How really do chip amps work?

[suzyj]

Oscilloscopes can have multiple channels, each of which have two wires, one of which is generally (but not always) connected to ground. There are differential probes, which show the difference between the two connections. Also you can “float” many modern oscilloscopes and connect the ground reference for the whole instrument to an AC or DC voltage. Finally you can do math between two channels, so for example you could do the difference between channel 1 and 2.

[jazbo8]

Originally Posted by BasicHIFI1

The final capacitor is able to remove all DC voltage?
Also, is this assumption correct?
It is a lot clearer now, but need to breadboard some stuff an experiment.

Haven’t you been down this road a couple of times already? Did you forget everything you learned?
Understanding Transistor amplifier with an online simulation

please note that starting multiple threads on the same/similar topics or asking the same questions repeatedly may be construed as trolling and is strictly against the Forum Rules.

[Mooly]

Originally Posted by Mooly

The capacitor does allow DC to pass and so this allows the DC conditions of each stage to be set by the designer.

Typo on my part.

Should read:

The capacitor does not allow DC to pass

[Mooly]

Originally Posted by BasicHIFI1

The final capacitor is able to remove all DC voltage?

Also, is this assumption correct?

It is a lot clearer now, but need to breadboard some stuff an experiment.

See if you can understand and work out how this works. The input is a 1 volt sine centred around zero volts.

What do you think you will see at points A, B and Vout ?

What is the DC voltage at those three points ?

What will happen to the AC signal at those points ?

Hint... the values and numbers make it easy to work out. No calculator required