hi i have a big problem to design wien-bridge oscillator.
i've made it with ua741 and simulated it with pspice.
(attached some figures.)
i wanted to get oscillation freqeuncy in 100kHz and 10V amplitude but i could't have that.
so i guessed there is a simple problem that ua741 is not ideal.
however, i don't know why that circuit in not in oscillation frequency 100kHz.
this circuit oscillated in about 70kHz.
help me to compose it!!!
i've made it with ua741 and simulated it with pspice.
(attached some figures.)
i wanted to get oscillation freqeuncy in 100kHz and 10V amplitude but i could't have that.
so i guessed there is a simple problem that ua741 is not ideal.
however, i don't know why that circuit in not in oscillation frequency 100kHz.
this circuit oscillated in about 70kHz.
help me to compose it!!!
Attachments
-
36.2 KB Views: 69
-
136.8 KB Views: 50