S
st_yar@yahoo.com
Guest
hi
I have a problem with ne555 I connect the ne555 in astable mode with
(vcc=5volt) I connect pin 2,6&7 together with 2Mohm
variable resistance & cap 220uf to get the maximum required time
(~150sec)but when I shorted the variable leads to get the minimum
required time ( ~.001 sec or less if it possible) I connect 1 ohm
resistor series with the variable to catch my goal but ne555 is
freezing with high level output
my goal: when I short the variable leads ne555 give my as small as
possible pulse ( pulse width .001 sec or less )
thank you for helps
yar
I have a problem with ne555 I connect the ne555 in astable mode with
(vcc=5volt) I connect pin 2,6&7 together with 2Mohm
variable resistance & cap 220uf to get the maximum required time
(~150sec)but when I shorted the variable leads to get the minimum
required time ( ~.001 sec or less if it possible) I connect 1 ohm
resistor series with the variable to catch my goal but ne555 is
freezing with high level output
my goal: when I short the variable leads ne555 give my as small as
possible pulse ( pulse width .001 sec or less )
thank you for helps
yar