Would you post a schematic so it's easier to follow the question? I'll see if I can comment, Jake.
On Fri, Mar 5, 2010 at 1:25 AM, war_of_justice <[email protected]> wrote: > Hi everyone > > I am currently working on a square circuit and the circuits consists > of current mirrors. The input voltage will result in a output square > current function being obtained. However, At the output, there is one > p and n mos transistors (one at top, one at bottom) and this 2 > transistors are supposed to provide a sum current which will then be > the output current ( output junction at the middle of the 2 > transistors). However, it seems that for both LTspice and electric, > there will be just one single current flowing through the transistors, > making the current mirror to fail, may i know anyone has any method to > solve this problem. For LTspice, I had tried to put an ideal inverting > op amp at the output, the voltage across R1 (ideal op amp gain of R2/ > R1=1) is set to 0 so that there will be a short circuit, causing > current from n transistor and p transistor to flow directly across the > op amp, this can help to solve the single current flow problem. > However, for Electric, I do not have the processes or parameters for > the transistors within the op amp, causing me to unable to use similar > approach. May I know anyone has any better solution to solve this > problem.Thank You very much > > Regards > Weiyi > > -- > You received this message because you are subscribed to the Google Groups > "Electric VLSI Editor" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<electricvlsi%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/electricvlsi?hl=en. > > -- http://CMOSedu.com/jbaker/jbaker.htm -- You received this message because you are subscribed to the Google Groups "Electric VLSI Editor" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/electricvlsi?hl=en.
