STATIC CONTROL OF MACHINES 279

STATIC CONTROL OF MACHINES 279

STATIC CONTROL OF MACHINES 279

static control of machines 279

static control of machines 279

STATIC CONTROL OF MACHINES 279 In many industrial applications , where a certain action has to be taken after a fixed , count , a ten position selector switch is connected to the output of decoder as shown in Fig . 11 . 41 ( b ). If it is desired to initiate some action after a count of say 5, selector switch is placed in position 5 as shown in Fig . 11 . 41 . After 5 number of count pulses , DCBA of counter will be 0101, which would also appear at DCBA terminals of Decoder . Decoder terminal 5 will go high and a high output will appear at common terminal of the switch to initiate the desired action . Here , the BCD number has been referred to the decimal decoder . There are other types of decoders available such as BCD to seven segment , grey code to decimak , excess three code to decimal etc . In this text , the term decoder will refer to the BCD to decimal decoder . Interested students may refer to a text book on digital electronics for study of inbuilt structure of a decoder .

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