Tachometer - Reasons for low power consumption

Q.  What is the purpose of consuming low power in tachometer or inexpensive frequency counter ICM7555 /CMOS 555?
- Published on 25 Sep 15

a. Generation of gate signal
b. Generation of RESET signal
c. Generation of STORE signal
d. All of the above

ANSWER: All of the above

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    Discussion

  • Satyawati Patil   -Posted on 09 Oct 15
    Tachometer or inexpensive frequency counter adopts ICM7555 /CMOS 555 which provides low power in order to generate gating, STORE and RESET signals.

    In this circuit, the timer is configured in such a way that it acts as a stable multivibrator with an intention to provide the gating signal.

    System calibration is performed with an usage of 5 MΩ potentiometer and a 1 kΩ potentiometer for 'RA' as a coarse control for 'RB' as a fine control respectively.

    However, generation of gating ,STORE & RESET signals is the major purpose of consuming low power ICM7555 /CMOS 555 in tachometer or inexpensive frequency counter.

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