The multi-Line answering racer circuit

Published:2011/6/7 11:22:00 Author:qqtang | Keyword: multi-Line answering racer | From:SeekIC

See as the figure, this is a multi-Line answering racer circuit, whose characters are as follows:(1) the number of lines is large, which can be added to 10 (there are 6 in the figure); (2) it is fixed with self-made digital large screen display team No., the image is direct, and the screen can be used for thousands of audiences; (3) it is adapted with the pulse scanning method, and there won't be more than one team answering at the same time; (4) quality-price ratio is high. The circuit is made of 3 CMOS integrated circuits and some common elements, which is low-cost.Elements selecting: IC1 is a 6 NAND CD4069.



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