Answer to Question #242251 in Electrical Engineering for siri

Question #242251

List the limitation of Encoder and explain how this can be rectified by Priority Encoder.

Design a 4:2 Priority Encoder given the priority D3>D1>D0>D2 where all Di’s are input to

the encoder.


1
Expert's answer
2021-09-28T00:57:48-0400

Disadvantages: The biggest limitations of encoders are that they can be fairly complex and contain some delicate parts. This makes them less tolerant of mechanical abuse and restricts their allowable temperature. One would be hard pressed to find an optical encoder that will survive beyond 120ºC.

he main difference between encoder and priority encoder is- the encoder generates an error output when more than one input is high. ... The priority encoder generates the accurate output by considering the highest priority input among the multiple input lines.


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