- #1
Weaver
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- 6
Homework Statement
Homework Equations
T = Time constant x ln [span/remainder]
The Attempt at a Solution
a)[/B] The trigger pulse must have a negative polarity and an amplitude greater than 1V. V+ is at 0V in the stable state. By using these conditions for a triggering pulses, it ensures that will drop V- below that of V+ and so causing the op amp output to switch low and enter the quasi-stable state
b) ***I am a little unsure for part b, but this is my attempt:***
Span= 15-(-15)
= 30
Remainder = 15-1
=14
T = (10x103 + 1x103 )(100 x 10-9) x ln(30/14)
T = 838.35us
Recovery approximately completes in 5 Time constants
=> 5 ( (10x103 + 1x103 )(100 x 10-9) )
= 5.5 msd) ***I am a little unsure for part d, but this is my attempt:***
If Vref was -1V, the V- would always be below V+ and so cause the monostable to be constantly producing a pulse.
Or is it that the circuit will responds to positive triggering pulses?
I am not very familiar with the monostable circuit. I'd appreciate any help with this question or even a link to a resource that explains the monostable circuit better. All the examples I find online seem to be a different circuit. Thanks in advance
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