spice question

[mjlior]

hi,
how do i set an initial value to a certain point in the circuit?
for example:
Vout(t=0) = 0

thanks.

 

[Russlk]

One way is to connect a small capacitor at the output to gnd and give the cap an initial value. The cap can be small enuf not to effect the circuit operation. FYI, in the capacitor description, put IC=V where V is the voltage you want. And, in the .TRAN statement put in UIC.

 

[mjlior]

thanks for your reply.
i've thought about your suggestion but being new to spice i thought there might be a simpler way to do this.

does anyone have an idea? :idea: