SW-VFA-01: Audio power amplifier video series

[clpk]

Thank you very much for the initiative, your videos are very useful for a beginner like me. I'm slowly translating Bob Cordell's book and with his explanations the understanding is much easier. Greetings

 

[kees52]

Hi all

Interesting here, I being helped by a member about class D open/closed loop calculation, it was great, much help.

I have as such do look at all the models and I did found a folder ZZZ , I do not now anymore where I get it from.

It has some models for simulation gain, I put them here, because maybe it is interesting.

regards

 

[dream]

Just found this series. Good Job Sandro.

It's a pity the amp design itself not yet started.

 

[wxh951106]

I found a problem in the video of open loop test,Sir. The function of ph(-1/(1-1/(2*(I(LGS:Vi)@1*V(LGS:x)@2-V(LGS:x)@1*I(LGS:Vi)@2)+V(LGS:x)@1+I(LGS:Vi)@2))) is different from the phase of LGS().So the the function of gain and phase is wrong.

 

[riscy]

Can you send me LTSPice file kits for this video (

), I could not find it from the provided links. I like to experiment this. Have you tried FRA feature from new LTSpice?, it be interesting to compare this with Middlebrook and Tain method. riscy00@gmail.com