Ring Oscillator need advice on decreasing Osc freq

[Hitotsu]

Should i increase no. of inverters or increase capacitance to decrease my oscillating frequency? Why?

 

[mikersia]

than more inverters, then more power consumption;
more capacitance -> more area comparing with inverters increasing.

 

[Hitotsu]

Don't I need more power to charge my capacitor if I increase its capacitance

 

[mikersia]

You will need more time to charge- exactly what is needed to decrease frequency. Dependence isn't fully linear, so some power fluctuations could be.