Isolation amplifiers can isolate the input and output by
A)transformer coupling
B)grounding both input and output to a common ground
C)both A and B
D)none of the above

Question

Quizplus · Accepted Answer

Isolation amplifiers use transformer coupling (among other methods like optical and capacitive coupling) to isolate the input from the output, allowing signal transmission without a direct electrical connection, thus preventing ground loops and protecting against high voltage spikes. Grounding both input and output to a common ground would not achieve isolation.

Isolation Amplifiers Can Isolate the Input and Output by