Feedback Amplifier: Phase Margin and Frequency Compensation in Feedback Amplifiers

_*In this video, what is Phase Margin and how to improve the Phase Margin of the Feedback Amplifier using the Frequency Compensation Technique is explained.*_ The following topics are covered in the video: 0:00 Introduction and Recap of the Previous video 2:52 Concept of Phase Margin in Feedback Amplifiers 6:51 How to Improve the Phase Margin 10:43 Frequency Compensation in Feedback Amplifiers *Phase Margin in Feedback Amplifiers:* The Phase Margin is a way of measuring the stability of the feedback amplifier. It shows how stable is the feedback amplifier. The phase margin is the difference in phases at gain cross over frequency and phase cross over frequency. Mathematically, Phase Margin = ∠ωgc + 180. Higher phase margin indicates the better stability of the feedback amplifiers. *Frequency Compensation in Feedback Amplifiers:* The Phase Margin of the Feedback Amplifier can be improved using the Frequency Compensation, where the dominant pole in the frequency response plot of the Feedback Amplifier is shifted to the lower frequency. _*For more information about the Feedback Amplifier, check the following videos:*_ *1) Introduction to Feedback Amplifier:* https://youtu.be/__8f6AXenYo *2) Effect of Negative Feedback on the Amplifier Characteristics:* https://youtu.be/HLnOESI1eps *3) Feedback Topologies in Amplifier Explained:* https://youtu.be/OoNluE5RLNg *4) Voltage Series Feedback Amplifier:* https://youtu.be/IuMlSU-D6lw *5) Voltage-Shunt Feedback Amplifier:* https://youtu.be/yyF-V5ZpAZg *6) Current-Series Feedback Amplifier:* https://youtu.be/sp_z2poAH8I *7) Current-Shunt Feedback Amplifier:* https://youtu.be/OnbuLh2h-nw *8) Stability in Feedback Amplifiers:* https://youtu.be/CDmDXRGjbIU This video will be helpful to all the students of science and engineering in understanding what is Phase Margin and how to improve the phase margin of the feedback amplifier using the Frequency Compensation. #allaboutelectronics #analogelectronics #feedbackamplifier #phaseMargin #frequencyCompensation Support the channel through membership program: https://www.youtube.com/channel/UCBkOVp1Cqz4MR0LYR8vKpZg/join -------------------------------------------------------------------------------------------------- Follow my second channel: https://www.youtube.com/channel/UCGA2TO8ylVqFHpucwn_6Jlw Follow me on WhatsApp channel: https://www.whatsapp.com/channel/0029VaLeZrfAO7RDoKr7je0l Follow me on Facebook: https://www.facebook.com/ALLABOUTELECRONICS/ Follow me on Instagram: https://www.instagram.com/all_about.electronics/ -------------------------------------------------------------------------------------------------- Music Credit: http://www.bensound.com