Phase Shifters

117

02:04:19

LAoE 6L.7 Design exercise: unity gain phase shifter. Using Vin and its complement

Is it possible to implement the upper phase shifter with only one opamp? (Should be different from the bottom one).

published 9 years ago

2ctiby

9 years ago

Nice... @rich11292000 might give some input to your question here...he is pretty good in the area of phase things.

rich11292000

9 years ago

Phase yes, opamp no. :p

rich11292000

9 years ago

http://everycircuit.com/circuit/4953597186146304

rich11292000

9 years ago

Delete top amp. Connect cap to input. Check your work in A.C. analysis mode. 18.3° to 173° phase lag. Same thing with the top amp

2ctiby

9 years ago

Well, well.....there we go. You must have put a lot of time and thought in to this, and here it is now looking so easy. Well done. You have proved yourself admirably in this area.

rich11292000

9 years ago

Good foundation to work with. The frequency dependency is now a issue.

rich11292000

9 years ago

I'm thinking we want this to work like the phase nob on a sub amp or surround sound. Indiscriminate against frequency.

nemethakos

9 years ago

Thanks, I think this is the solution for the design exercise!

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