# help with easy circuit thanks

P

#### petrus bitbyter

Jan 1, 1970
0
Big House said:
Hell

I need a simple circuit, so I ask you the simpliest way to do it :

All I need to do is this. I have a Vin of 9volts (battery), I nee t
have a Vout=Vin for a few milliseconds (or even a few seconds i fine
and then Vout=0. So the goal is: when you connect the batter Vout=Vi
for a few milliseconds/seconds (not important how long) and th Vout=

Thank
These "simple" questions too often provide too little details to be
pushbutton, an
NO (normally open) type.

petrus bitbyte

R

#### Rich Grise

Jan 1, 1970
0
Are the changes in Vout driven by the input in the first case, and by
time in the second case?

Ie. wait for Vin to go high, then Vout = high for 1 second?

So far, to me, it sounds like the simplest thing would be just a capacitor:

VBatt + o---||----+-----o Vout +
|
[R]
|
VBatt - o---------+-----o Vout -

Cheers!
Rich

R

#### Rich Grise, but drunk

Jan 1, 1970
0
On Sun, 26 Feb 2006 21:10:54 GMT, "Genome" <[email protected]>

[snip]
I am think you am need P-channel mosfet wiv RC thing on gate.
[snip]
DNA

GRAMMAR ERROR! GRAMMAR ERROR! GRAMMAR ERROR!

It should be "wiv RC thingy", not "RC thing" ;-)

...Jim Thompson

Hey! Can somebody make sure that Jim gets enough wine regularly? ;-)

Cheers!
Rich
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