Path: utzoo!utgpu!cunews!software.mitel.com!grayt
From: grayt@Software.Mitel.COM (Tom Gray)
Newsgroups: sci.electronics
Subject: Re: Help needed with voltage controlled delay circuit
Message-ID: <6474@healey>
Date: 11 Feb 91 17:24:11 GMT
References: <58290@eerie.acsu.Buffalo.EDU>
Organization: Mitel. Kanata (Ontario). Canada.
Lines: 16

In article <58290@eerie.acsu.Buffalo.EDU> v097pba8@ubvmsd.cc.buffalo.edu writes:
}
}	I'm working on a drum pad interface and I thought this sub heading
}might prove more definitive of the project on this group.
}	What I need is a circuit that will take voltage from a piezo element
}and 1) Close a contact immediately 2) Close another contact after a delay
}period related to the voltage of the trigger signal.  This delay will be
}very small, I'm sorry I can't give the range in microseconds, it's less
}than one second.
}
}	Anyone have any ideas?
}

As always a 555 set up as a monostable will do this. Reset the 555 with the
sample pulse and use the sampled voltage as the reference signal to the 555.