neazoi
Advanced Member level 6
Hi, all amplifiers I am aware of, "modulate" the power supply voltage/current at their output. The amount of "modulation" is controlled by the lower level signal at their input (base for a bjt, gate for a fet etc).
In other words, the original signal waveform is not touched at all. It just drives the transistor, so that it can modulate the PSU voltage/current and create an amplified replica of the input signal.
Now, I thought about the phasing of two signals. If two signals of equal phase are fed to an adder, one adds to the other to produce a higher level signal. As I think this, this process actually "touches" the input signals. In other words it performs direct manipulation on these. Can't it be considered another form of amplification?
I am sorry about my non-technical terms.
In other words, the original signal waveform is not touched at all. It just drives the transistor, so that it can modulate the PSU voltage/current and create an amplified replica of the input signal.
Now, I thought about the phasing of two signals. If two signals of equal phase are fed to an adder, one adds to the other to produce a higher level signal. As I think this, this process actually "touches" the input signals. In other words it performs direct manipulation on these. Can't it be considered another form of amplification?
I am sorry about my non-technical terms.