Is the amplifier and the relay the same product?
The relay is a control device, it has a control system (also known as the input circuit) and the control system (also known as the output circuit), usually used in automatic control circuit, it is actually a small current (input circuit) to Control the larger current (output circuit)
mplifiers and relays are not the same product.
An amplifier is a device that can amplify the voltage or power of an input signal, consisting of a tube or transistor, a power transformer, and other electrical components. The amplifier is amplified by an input signal to control the energy required to amplify the power required. For linear amplifiers, the output is the repetition and enhancement of the input signal.
An "automatic switch". So in the circuit plays an automatic adjustment, security protection, conversion circuit and so on.
