Kick Pulse Generator

danadakk said:

Some specifics :

1) Pulse width needed
2) Pulse load description, power of current or V needed.
3) Pulse width accuracy ?
4) Pulse V when high ?
5) Power supply available to power circuit ?
6) Origin or source of pulse enable input ? Is it noisy, ? Its risetime ?
7) Any special environmentals ?
8) Pulse sequencing, do you need to sequence load startups ?
9) Why MOS transistor, is this an IC design problem ?

Regards, Dana.

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dick_freebird said:

Search for "POR" and "power-on reset" for common
approaches. You should consider what the supply
turnon event looks like as various "trigger" schemes
may have dependencies that defeat it in application.
Such as a dV/dt trigger needing a minimum supply
slew rate, or a POR which doesn't get back to the
"reset" state leading to a failure to reset if the supply
hasn't been "dark" for long enough. Build yourself the
"challenge cases" to demonstrate robustness or reveal
its lack, according to what the application has to say.

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D.A.(Tony)Stewart said:

Ic= CdV/dt = 1e-16 * 0.8V / 2e-6 = 40 pA in 2us or 400 pA in 10% of 2us.
Thus Rs max = 0.8V / 400 pA = 2to 20 Gigs pullup (??) assuming RC = 64% that is not much of a kick.

Is your question how to make a unipolar one-shot , show the device characteristics in detail and PSU rise time.

--- Updated Dec 28, 2023 ---

Although your question is poorly defined, this may be what you are looking for.

View attachment 187370

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