Gain margin in PWM converters

Рет қаралды 3,152

Sam Ben-Yaakov

Ай бұрын

#switchmodeconverters #pwm #phasemargin #gainmargin #stability

Пікірлер: 30

@kabandajamir9844 Ай бұрын

The world's best teacher thanks sir

@sambenyaakov Ай бұрын

Wow, thank you😊Comments like yours keep me going.

@GHOTIME Ай бұрын

Very good knowledge. Thank you sir

@sambenyaakov Ай бұрын

Thanks

@joshbiju7771 Ай бұрын

Sir you helped me with a seminar on DAB and SAB converters thanks❤️ still watch your videos

@sambenyaakov Ай бұрын

Glad to hear that

@raviselvans1963 Ай бұрын

Thanks prof.❤

@sambenyaakov Ай бұрын

You're welcome 😊

@vocdien Ай бұрын

Dear Sir! I followed your channel and saw very detailed videos, full of equations. If possible, I hope you can explain the current reflected from secondary to primary in symmetrical pulse source circuits such as pulse sources. half bridge, when using multiple outputs and in my case the outputs use LC buck filter. thank you!

@sambenyaakov Ай бұрын

Not sure I follow. Can you send me a sketch to sam.benyaakiv@gmail.com?

@theoryandapplication7197 Ай бұрын

thank you very much sir

@sambenyaakov Ай бұрын

Most welcome. Thanks.

@tamaseduard5145 Ай бұрын

👍🙏❤️

@sambenyaakov Ай бұрын

Thanks😊

@BernhardRiemann966 Ай бұрын

Could you please suggest a good circuit theory book with challenging questions that can assist me in my first year of studying electrical engineering? I've gained a substantial amount of knowledge about analog electronics through watching your channel and completing a 70-hour course on analog electornics. However, most of my understanding has been based on practical, real-life information(through courses), and I haven't studied from textbooks before. I'm eager to begin my journey in circuit theory. What advice do you have for me?

@sambenyaakov Ай бұрын

Sorry, I am not that up to date on current textbooks.

@VikasYadav-ot3hr Ай бұрын

Hi sir, I recently started studying analog circuits and I find concept of "common mode" voltage to be very confusing in differential amplifiers. Some texts write it as common noise which is injected in signal, some texts show common mode voltage as some sort of bias voltage to transistors. And if assumed it to be common noise voltage in signal or even as bias voltage for transistors, then why it is average of input differntial signals? I know this comment is not relevant with this video's topic, but I want to understand this concept. Please help me to understand this. Thanks

@sambenyaakov Ай бұрын

Common mode is the voltage or current referred to the ground of the system. For example, the common mode current of a line fed system is the current that circulates from ground to BOTH the phase and neutral line into the systems. In analog circuits, the input common mode voltage is the voltage between the input terminals and ground. In closed loop op amp the voltage between the input terminals is very small so the common mode is between any terminal to ground. In a differential amp, the input common mode voltage is DEFINED as the voltage between the average of the input voltages and ground. You should concentrate not just on the definition of common mode voltage but what it is used for. Once you understand this, the logic of common voltage definition will become clear.

@SS-ne1xr Ай бұрын

I have some doubts is it possible to connect?

@sambenyaakov Ай бұрын

You can write to sam.benyaakov@gmail.com

@anshulawasthi9605 Ай бұрын

I am the first one who is watching this video sir

@sambenyaakov Ай бұрын

👍👏😊

@weerasingheb7a457 Ай бұрын

Dear sir I'm designing MISO boost converter. It's difficult thing for me that when going to design compensator to PI controller part of the system. Can you do a lecture how we stable the system using compensator and design method of proper compensator using transfer functions. I need to know how we change the gain margin and phase margin of the converter system using compensator.

@sambenyaakov Ай бұрын

Have you seen kzfaq.info/get/bejne/mK2aZMum35iwn5s.html kzfaq.info/get/bejne/eNRnhLN7xtCRpok.html

@vanease1 Ай бұрын

Hi Professor, thanks for another great video. I want to raise a question to your video of T-model and L-model of a transformer a year ago (kzfaq.info/get/bejne/bpiFa7Nzss6Wm2g.html). I have tried those four modeling methods in LTSPICE and seen that the two L-models give different results as other two (transformer coupling and T model). I have double checked and made sure the parameters as the same as yours. Additionally, all models give like twice higher than your results at 7:42. Do you possibly know why?

@sambenyaakov Ай бұрын

You mean at slide 20?

@vanease1 Ай бұрын

@@sambenyaakov I mean I used all parameters in slide 7 in kzfaq.info/get/bejne/bpiFa7Nzss6Wm2g.html (btw, Cr is missing in all circuits here) and cannot reproduce the waveforms in page 12.

@vanease1 Ай бұрын

I believe the L-model has a wrong equivalent turns ratio. The inductance on the side primary side should be: Lm*1k/(N*N)/(KP1*Kp1) - verified by simulation.

@vanease1 Ай бұрын

sorry, sec. side

@sambenyaakov Ай бұрын

You are correct, there is a problem with the L model the way I have put it. I have not recalculated it. Time permits, I will try your solution.