Multidigit scaling circuit for performance

Published:2011/12/1 1:29:00 Author:May | Keyword: Performance, multidigit scaling | From:SeekIC

This circuit is the countersuitablefor demonstration teaching and technology exhibition, and it is composed of the counting counter RS7490, encoder RS7447 and seven segment digital tube. If it is added two stage again, display can start new count cycle only when it gets the number of 9999. Diode IN194 connected to battery in series with battery is used to prevent damage integrated circuit from misconnection power polar and reduce power supply boltage to 5V in order to fit the need of intergrated circuit.



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