Position: Index > Electrical Circuit >

Inexpensive_frequency_counter_tachometer

2014-11-28 04:04  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


Inexpensive_frequency_counter_tachometer
This circuit shows an ICM7217 and an ICM7555 that are connected as a basic frequency counter. The connections between the ICM7217 and a common-cathode LED display are shown in Fig. 12-18. The frequency counter is calibrated (against a known standard) using RA as a coarse control and RB as a fine control.Notice that the ICM7555 timer is connected as an astable multivibrator. Harris Semiconductors, Data Acquisition 1991 p 11 55