3 ms·
>Even funnier that the feedback actually increases the bandwidth of the system, compared to the open loop amplifier. The reason for this is because of how band
by hex4def6 4y ago
>Even funnier that the feedback actually increases the bandwidth of the system, compared to the open loop amplifier.
The reason for this is because of how bandwidth is defined, which is basically the point at which the amplifier gain starts dropping the higher the frequency you go.
Adding feedback is effectively clipping the low frequency/ high gain area with the net effect that the gain versus frequency plot is a lot flatter (but now, instead of being able to get say 10,000x gain at 1Hz, you're clipping it to 100x, since you're unable to get 10,000x at 1Mhz)