Tuesday, February 2, 2016
An explanation of an ADC
Electricity plays a big role in television and broadcasting. You have alternating current (AC) or you have direct current (DC). Current is the flow of electricity. When electric current flows it choses the least path of resistance. This gives you some idea on how electricity can be controlled and regulated. An analogue signal and a digital signal are two ways to describe the flow of electricity. ADC (Analogue-to-Digital Converter) is a way to alter electrical current by adjusting the flow into current flowing in one burst of an on and off signal. To simplify this, imagine water flowing then slowing down with the turn of a knob; if you take this idea and apply it to electricity you have an example of how analogue signals work. Now imagine a bucket of water being splashed on someone with an on and off switch. This is an example of a direct current signal. An ADC (analogue-to-digital converter) is simply a way to convert an analogue signal to a digital signal.