Hello,
I am looking at the different types of transistor oscillator circuits.
I know you need positive feedback with a 0/360 degree phase shift but I do not understand how the colpitts oscillator achieves this?
The circuit above uses an inverting transistor amplifier to give a phase shift of 180 but I cannot figure out how it shifts back into phase in the feedback?
Any ideas?
Thanks.
I am looking at the different types of transistor oscillator circuits.
I know you need positive feedback with a 0/360 degree phase shift but I do not understand how the colpitts oscillator achieves this?
The circuit above uses an inverting transistor amplifier to give a phase shift of 180 but I cannot figure out how it shifts back into phase in the feedback?
Any ideas?
Thanks.