The BEST power electronics lectures as ALWAYS! I just love the matching between theoretical analysis and real world values! Thank you!
@sambenyaakov4 ай бұрын
Glad you like them! Thanks
@ymym49772 жыл бұрын
Now I have the best channel to pick up more EE knowledges, thanks!
@sambenyaakov2 жыл бұрын
🙏😃
@SMV1972 Жыл бұрын
Огромное спасибо. Прекрасное изложение материала!!
@sambenyaakov Жыл бұрын
Спасибо תודה
@vicentematricardi35962 жыл бұрын
Thank you very much Yaakov , I am watching your classes little by little , they seem excellent to me , I feel that you have a true knowledge , you are worthy of admiration , a warm hug !!!!
@sambenyaakov2 жыл бұрын
Thanks
@theoldbigmoose2 жыл бұрын
Highly informative presentation Professor. Thank you!
@sambenyaakov2 жыл бұрын
Thanks
@sambenyaakov2 жыл бұрын
🙏🙂
@hamidk47722 жыл бұрын
Outstanding Job.
@ToBeDefined852 жыл бұрын
Thank you for your informative videos Mr. Ben-Yaakov. Please keep on doing them.
@sambenyaakov2 жыл бұрын
👍🙏
@StanZurek2 жыл бұрын
Interesting mention of Encyclopedia Magnetica.
@sambenyaakov2 жыл бұрын
Thank you Prof. Zurek for your immense contribution to magnetics knowledge and the marvelous e-magnetica🙏🙏🙏
@Stelios.Posantzis2 жыл бұрын
4:48 "it makes the inductor smaller": the inductor size is here determined exclusively by le and Ae, of which, le seems arbitrarily defined and is only set as equal to lf + lg where each of which terms in turn is arbitrarily defined since the definition of one implies the definition of the other and vice versa. In other words, how do you define lg when lf is zero? Can an equation for the inductance be given, containing both lg and lf where lf is allowed to go to zero? I'm not clear on this.
@sambenyaakov2 жыл бұрын
Thanks for discussion, good point. The definition of mue, assumes a homogeneous ferromagnetic body with no gap in which B is confined to the body. One this assumption is violated one can not use this model. With no lf device becomes a selonoid. Interstingly, the equation for the inductance is the same when l is the length of the solonoid.
@Stelios.Posantzis2 жыл бұрын
@@sambenyaakov Yes, exactly, this is what I was finding strange - unless the formula for the air core solenoid has a 1/2 factor (I cannot remember if it does) in which case that would mean that the formula for le/mu_e was still right.
@sambenyaakov2 жыл бұрын
@@Stelios.Posantzis No, it does not have a division by 2. And my intuitive explanation is that outside the solenoid the flux is spread out so if you take a loop Hdl the H in the outside is very small 😊
@Stelios.Posantzis2 жыл бұрын
@@sambenyaakov So then, we are stuck with a formula for inductance that is not general (for any inhomogeneous magnetic path). That's weird: one would think that someone ought to have come up with a general formula for this by now...
@sambenyaakov2 жыл бұрын
@@Stelios.Posantzis I would surmise that it is possible to come up with a general formula. But it is the practice of workers in the field to make life easier as in other cases. Take for example a BJT or MOSFET, you can use the complete set of non linear differential equations or, for gain derivations, you can use an equivalent linear model at the operating point. I will choose the latter.
@chaolinshi18162 жыл бұрын
thanks
@sambenyaakov2 жыл бұрын
🙏🙂
@gouravag2 жыл бұрын
Hi sir, Can you add a video on current sensing techniques in dc dc converter? I have started learning dc-dc converters but I have not found any good materials on current sensing techniques. And Thank you for your awesome videos.
@sambenyaakov2 жыл бұрын
In the search window of KZbin write" sam ben yaakov current sensing"
@gouravag2 жыл бұрын
@@sambenyaakov Sir, Thank you so much for your reply. Perhaps, I didn’t clarify my question earlier, sorry for that. I want to learn about low/high side current sensing techniques in current mode control converters.
@sambenyaakov2 жыл бұрын
@@gouravag have you seen kzbin.info/www/bejne/p3_IgIqAr5eii9k ?
@tamaseduard51452 жыл бұрын
👍🙏❤
@sambenyaakov2 жыл бұрын
🙏😊👍
@dor7sh2 жыл бұрын
Hello Prof. is there a way to utilize the fringing effect to our advantage in a design?
@sambenyaakov2 жыл бұрын
Good question. I am not aware. Hold on. Magnetic heads of the old tape recorders apply the friging flux to magnetize the tape😃
@MrDp90002 жыл бұрын
Dear Prof. Can you please make a video on analytical calculations of leakage inductances ( specifically for multiwinding transformer).