The point of feedback is to make the performance of a circuit depend on fixed components like resistors and capacitors, which can be made very accurately, and not on transistors which can not be made with highly accurate parameters.
D. J. H. Maclean has written: 'Broadband feedback amplifiers' -- subject(s): Broadband amplifiers, Feedback amplifiers
Yes because an amplifier with positive feedback is an oscillator.
It usually makes them self-oscillate or 'hoot'.
Sol Rosenstark has written: 'Feedback amplifier principles' -- subject(s): Feedback amplifiers
Frequency compensation is a technique used in amplifiers. It basically controls the sound of the amplifier to make it sound clear and free of positive feedback.
High input impedance implements the operation of the external feedback circuitry (e.g. diff. amplifiers vs. comparators).
describe current-shunt negative feedback as applied to operational amplifiers, including derivations of the gain relation for each type of negative feedback.
The most used instrument amplifiers are also some of the most popular amplifiers namely Marshall, Crate and Fox amplifiers. The impedance of these amplifiers does not need to match making it perfect for instrument use.
feedback that reduces gain to help stabilize amplifier operation. gain is easy and cheap to get, stability isn't. its a tradeoff. so amplifier is deliberately designed with much more gain than needed and negative feedback sacrifices some of that gain to stabilize it.
Antenna amplifiers are used to strengthen the signal being supplied to an appliance such as your TV. Amplifiers are necessary when the signal is weak and interferes with your TV reception.
The most used instrument amplifiers are also some of the most popular amplifiers namely Marshall, Crate and Fox amplifiers. The impedance of these amplifiers does not need to match making it perfect for instrument use.
Operational amplifiers (op-amps) use negative feedback in various electronic circuits to stabilize and control the gain. Negative feedback is employed to reduce distortion, increase bandwidth, and maintain precision in the output signal. It is a common technique used in amplifier, filter, and oscillator circuits to improve performance and stability.