F/V Converter for Tachometer Bar Graph Display

Posted on Feb 7, 2014

We can construct a tachometer using the TC9400 in the F/V mode to convert the frequency information (RPM) into a linearly proportional voltage. Then we can compare this voltage to one of n comparators (on this example using 8). The respective LED lights up and will continue to stay lit as long as the voltage exceeds the trip point when he volta

F/V Converter for Tachometer Bar Graph Display

Click here to download the full size of the above Circuit.

ge exceed the trip point of comparator. This will give us a bar-graph-type display. The height of this bar is proportional to RPM. We aim to transmit more information by carrying articles. Please send us an E-mail to wanghuali@hqew. net within 15 days if we are involved in the problems of article content, copyright or other problems. We will delete it soon.

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