What is the difference between an amplifier and a repeater?
The amplifier has amplification effect, such as the high frequency signal amplifier, the signal amplification for transmission, and then at the receiving end in the narrow can, only the repeater relay function, can be understood as a bridge.
Operational amplifiers are widely used devices. They are connected to an appropriate feedback network and can be used as precision AC and DC amplifiers, active filters, oscillators and voltage comparators.Repeater: OSI (Repeater) works on the physical layer of the network. It is the center of all nodes on the LAN. Its function is to amplify the signal, compensate the signal attenuation, and support long distance communication.
Amplifier: one of the most familiar and most commonly used audio processing circuits is common operational amplifiers. The general can be regarded as a simple operational amplifier with a signal output port (Out) high gain direct coupling voltage and in-phase and antiphase two high impedance input terminal of the amplifying unit, thus making in-phase and antiphase and differential amplifier using operational amplifier
