1. The problem statement, all variables and given/known data I'm required to design a simple ring oscillator... One with three stages of cascaded cmos inverters using pspice capture(student version) 2. Relevant equations 3. The attempt at a solution I have simulated the circuit with a 5v supply but all i see is a dc line at 2.50v.has this got something to do with triggering the oscillator?.. Please help me. I'm completely new to this.