Cross coupled LC oscillator design current saturates but voltage doesnt

Status
Not open for further replies.
C

Chinmaye

Full Member level 3
Joined
Jan 18, 2016
Messages
164
Helped
0
Reputation
0
Reaction score
1
Trophy points
1,298
Activity points
3,145
Dear all,
I am new to oscillators and trying to understand it by studying from the Razavi text book. While studying cross coupled LC oscillators, i came across this current waveform which saturates i.e. one of the branches in the cross coupled oscillator at a time but voltage doesn't saturate. It looks like a nice sine waveform. Any intuitive explanation for this would help.
TIA
 

It's normal as it should be.. While the Current swings between peak-to-peak +- Ibias, The voltage waveform will be sinusoidal due to natural ringing of the tank circuit.
Imagine, circuit "feeds" the Tank Circuit in every cycle and assemble with natural response of a tank circuit excited by pulse.
 
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…