RF Envelope Tracking Tutorial | Improving RF Power Amplifier Efficiency

[@fjs1111]

Very cool! Something like a high-speed AGC feedback loop for RF Power MOSFETs

[@ElectronicsNotes]

Very cool indeed - development of the techniques was not easy, but it saves a lot of power in mobile phones and many other circuits & situations.

[@santhoshk8703]

Thank you for taking time and making very detailed video

[@ElectronicsNotes]

Glad you found it useful.

[@8754484388]

Brilliant video, crisp and clear, thank-you!

[@ElectronicsNotes]

Im really glad it was helpful!

[@LEO22116]

Sorry I am a power electronics engineer and do not know RF systems! What is RFC at 0:20?

[@electropitanie]

This is a dividing line inductor coil.

[@ElectronicsNotes]

Yes, RFC stands for radio Frequency Choke. As mentioned by another it is an inductor intended to block the radio frequency signals as it is a high impedance at RF and low impedance for DC. In this circuit is allows the correct bias conditions for the amplifier while not dissipating any of the RF signal.

[@santhoshk8703]

Best exploration sir.... Thank you so much

[@ElectronicsNotes]

Glad the video was useful. Thanks.

[@DueceBigelow]

Nice video! This is supplemental to your website? Would like more info regarding your "Amplifier Classes: A, B, C, D, etc" page trying to understand the "Conduction Angle Θ" you have for Class AB

[@ElectronicsNotes]

Thanks - glad you appreciated the video. Yes, the video channel and website are both mine. I’ll take a look at your suggestion about improving the amplifier classes page. Thanks for the suggestion. It might not happen immediately because there are a few other projects happening at the moment.

[@shreeganeshbhat2876]

Thanks for this. Wonderful video.

[@ElectronicsNotes]

I'm glad you found it useful.

[@shaiy8227]

Excellent! very clear explanation, even to a stupid guy like me

[@ElectronicsNotes]

Thanks for the comment . . . and I wouldn't think you are stupid at all.

[@pennyl.8799]

Ok as a primer but pretty superficial on technical details

[@ElectronicsNotes]

We only ever intended it to be a primer. The number of people who would want real in-depth technical details are relatively small and it would end up making the video too long. On top of this it would have taken more than the 10 - 15 man days it took to make the existing one. I hope that you were not too disappointed with it.

[@OfficialAnarchyz]

@@ElectronicsNotes No it's pretty good. I don't know what the point of these comments is. Of course it's not a freaking lecture

[@赵䟏]

Thanks a lot!

[@ElectronicsNotes]

I'm glad the video was useful.

[@cyberphox1]

👍

[@ElectronicsNotes]

Thanks.