Q. Why do people use mechanical comparators?

Answer

Magnification in mechanical comparators is accomplished by a number of mechanical devices and mechanical links. The mechanism of a mechanical comparator, a type of measuring instrument, takes the shape of a tape spring twisted and located in the instrument's midsection. Major uses for comparators include zero crossing detectors, switching power regulators, peak detectors, and brushless DC (BLDC) motor control. A comparator is a device with two input terminals (inverting and non-inverting), where one input terminal receives a reference input signal and the other receives the signal's actual values.