pneumatic comparator working ppt

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Comparators are classified into various types, such as electronic comparators, electrical, mechanical, optical, sigma, digital and pneumatic, these are used in various applications. Comparators play an essential role in the design of electrical and electronic projects. In electronic circuits, an op-amp is used with negative feedback and can also be used as a comparator. The comparator is primarily designed without feedback for the open loop configuration. These are widely used in A / D converters. When the i / p signal is sampled, then this signal is applied to multiple comparators to convert the digital form of analog. The comparators applications mainly involve BLDC operating motors, zero crossing detectors, switching power controllers and maximum detectors. This article gives a description of what a comparator and types of comparators are.

Types of Comparators

Comparators are classified into different types, such as
Mechanical comparator
Mechanical-optical comparator
Reed type comparator
Electrical-Electronic Comparator
Pneumatic comparator

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I need a powerpoint presentatiom on a topic 'Pneumatic Comparator' for the purpose of presentation.