white.1588
Newbie level 4
For my senior design project we are designing a wireless power transfer system (inductive resonant coupling). I'm currently using pspice to design a 10MHz Colpitts oscillator. I cannot get this SOB to simulate properly. I used a pretty typical topology, the transistor is a 2n222a and its properly biased to amplify with half the rail voltage (12V) across the collector emitter (Vce=6V). For picking my cap and inductor values I used the equation f=1/(2*pi*sqrt(L*Ct)), where Ct=(C1*C2/C1+C2). I simply just set C1 equal to C2 for simplicity; I have heard that alot of time that C2>>C1. I have looked at many books in my University engineering library, however there is a lot of convoluted details such as modeling and no practical design advice.
So does anyone have any idea about whats holding this design back? Any practical design advice is also greatly welcomed.
Thanks in advance!
The value for C1 and C2 are both 50.66pF
So does anyone have any idea about whats holding this design back? Any practical design advice is also greatly welcomed.
Thanks in advance!
The value for C1 and C2 are both 50.66pF