Explanation: A monostable multivibrator can be used as a missing pulse detector by connecting a transistor between trigger inputs. If a pulse misses, the discharge trigger input goes high & transistor become cut-off and the output goes low. So, this type of circuit can be used to detect missing heart beat. 6. A 555 timer in monostable application mode can be used for
A. Pulse position modulation
B. Frequency shift keying
C. Speed control and measurement
D. Digital phase detector
Answer:A
Explanation: A monostable multivibrator can be used as a missing pulse detector by connecting a transistor between trigger inputs. If a pulse misses, the discharge trigger input goes high & transistor become cut-off and the output goes low. So, this type of circuit can be used to detect missing heart beat. 6. A 555 timer in monostable application mode can be used for
A. Pulse position modulation B. Frequency shift keying C. Speed control and measurement D. Digital phase detector
Explanation: In monostable operation mode, if input trigger pulses are generated from a rotating wheel, the circuit will determine the wheel speed whenever it drops below a predetermined value. Therefore, it can be used for speed control and measurement. 7. How can a monostable multivibrator be modified into a linear ramp generator?