@helicopterpeace7434
Mr. Perreault, Thank you for your exceptional teaching ability. I enjoy electronics but you bring an enhancement to this enjoyment as well as a fascination.
@Nobody-hs9cl
An excellent lesson. Very comprehensibly presented - and by a very personable lecturer. Even for an amateur electronics hobbyist like me, every step is understandable. I learned al lot and I hope your students also appreciate the quality of your lectures.
@VolleyballFamilyAndFriends
You blew up my brain but brought it back in the end. Inductance creates a delay in voltage output. Your expected voltage output could be lacking expected delivery because the lag in ramp up time to deliver the current is missing a bite of the current being generated. The inductance will result in zero current being generated until d1 and d2 reach their transition point. This is “u” and when i1 reaches pie + u. This is important because the inductance creates droopy voltage instead of ideal output. This could result in higher voltage than you expect being delivered to your electronics or lower voltages delivered than expected on average. Car alternators are low frequency examples that cause electronics to be rated for up to 80 volts for a 14 v system. I think I get the idea. I’m looking forward to see how this building in the next sessions.
@Tezza120
This was a good one for learning the switching characteristics. I've seen similar waveforms in switchmode powersupplies for avionics equipment and now understand why it did what I saw.
@thelaststanding97
With your teaching style, I am no longer afraid of math formulas. Thank you so much, Sir!
@dtung2008
These few lectures have helped me start to appreciate how to work on circuits. I used to think that circuit analysis was just a collection of ad hoc tricks, but this professor makes a good point: these concepts are all very nonlinear, and a few solid principles can take you far. Very nice lectures, right on target.
@111000100101001
Coming from being a mechanic and eventually an engineer this explains a lot to the “why”. In the alternator scenario explained by the professor, never disconnect the battery when a vehicle is running since it can cause a load dump or more appropriately it acts as a large capacitor handling any large load changes in the system.
@dhiarajebziri9009
thanks everyone fir helping me understand things i did not really understand when i was a student.
@ScottESchmidt
I downloaded LTSpice for free and am simulating along with the lectures. I'm a Civil engineer and I can follow along quite well at this level, which is testament to the Professor's superb teaching style.
@tajox
I didn't remember the part about the reactance being so important in these applications. The angle to modify the load regulation factor is really important but I don't remember how to modify it. The last question about using capacitors to lessen the impact of the impedance was on my mind the whole time, but it is true that the size of the capacitor changes wildly with the application
@sheamcclure6639
I have built quite a few race cars and many with battery isolation\master cut off switches. The new style come with a giant resistor that is wired to ground and i always wondered why, now i know, to shed that spike from the sudden disconnection rather then sending it through the cars modules.
@SherriMSDRML-qm1pe
Thank you❤
@ProgrammingwithRabih
great analysis. Thank you for sharing. I am loving this course more and more.
@major__kong
When he gets to the end and asks what does this look like in the DC world, I was thinking from earlier that this looks like a battery, which can be modeled as a voltage source with a series resistance. As you pull more load, voltage sags, especially if you're using a lead acid battery.
@SeniorScriptKitty
i had the same question as that guy at the end glad he asked it.
@desertengineer1
Some days I wish I had gone to MIT. I’ve never seen such a rigorous lead-in (pardon the pun) to Power Factor. I still hear in my sleep the phrase from military tech school, “ELI the ICE man”! I would have just shouted from the back, “add a capacitor!” :)
@9999afshin
Very nice,thanks
@miguelavila1964
Gracias, le daré las gracias por cada clase.
@robertbox5399
The inductance 'slows down' the output capability to supply ac loads. I have blown up lots of ECUs with a Schaffner during load dumps!
@gersonsantiago7519