Is it possible to feed the input of a simple class A amplifier with its output to have a perpetual current motion in the all system ?
The transistor needs bias voltage (CC), so we could feed (with a part of the output signal) a full-wave bridge rectifier and then a filter and a smoothing capacitor to obtain a CC voltage that we could use to bias the transistor.
So no need for an external CC voltage source to bias the transistor or an external AC voltage source for the input, maybe only at the beginning to start the amplifier but as soon we get an output signal, we use it as I have just explained, so we turn off the external voltage sources.
I suppose this is not possible but why ?
The transistor needs bias voltage (CC), so we could feed (with a part of the output signal) a full-wave bridge rectifier and then a filter and a smoothing capacitor to obtain a CC voltage that we could use to bias the transistor.
So no need for an external CC voltage source to bias the transistor or an external AC voltage source for the input, maybe only at the beginning to start the amplifier but as soon we get an output signal, we use it as I have just explained, so we turn off the external voltage sources.
I suppose this is not possible but why ?