Full bridge rectifiers may seem great, but there's a pretty big problem with them that is becoming ever more relevant.
What happens when:
0:00 Introd...
ElectroBOOM
8 months ago
FULL BRIDGE RECTIFIER!!! Sorry, I'll watch the rest now!
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RNA0ROGER
8 months ago
I love it how bidirectional inverters and PFC are sort of one in the same
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NoferTrunions
8 months ago
The Power Factor of your presentation was 1.0! Great pace and steady information density.
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xfaon
8 months ago
"My code is disgusting and we shall discuss it no more" 😹i love this guy LOOOOL
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PhotonicEscape
8 months ago (edited)
Wow you just gave me three "ah ha!" moments in under 10 minutes. Your way of explaining these things, combined with your use of visuals, are on point. Keep it up! 🙇🙇🙇
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ninefox344
8 months ago
Always in awe of how good you are at all of this.
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pjelbro3492
8 months ago
From a retired electronics design engineer that was an epic presentation. Thank you
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davidpacholok8935
8 months ago
A really simple PFC IC for apps less than 500 watts is the MC33262 developed about 35 years ago. It uses critical current mode, ie fet turns on as soon an the inductor current drops to zero. It uses a single quadrant analog multiplier to force the input current to follow the haversine reference, which is derived from a simple voltage divider from the diode bridge.
Perhaps you might consider a sequel describing this iconic IC. It was used by the 10s of millions in fluorescent lighting ballasts from the late 80s until the advent of high efficiency white LEDS, which as your readers may know are really fluorescent phosphors driven by a blue led at about 460 nM.
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joesgenericbar
8 months ago
Very good teacher. I came up through in a technical electronics school in 1974. It wasn't easy to work
the labs and one of the "trick questions" was about a bridge, not rectifier but a load/voltage resistor network.
Your construction of the led rectifier is FANTASTIC (not due to just the lighting effect, which was great, but the
use of a signal generator to slow down the effect) as well as your rearrangement of the diamond to a vertical
stack. It is important, as a teacher, to remember that the student is ignorant of the ideas to be taught and the
challenge is to engage the student with simple but informative presentations that impart the knowledge
desired. Almost immediately I could tell this teacher is a good teacher.
Good job, thank you.
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F.E.Terman
8 months ago
Very enjoyable. Completely understand the idea now, thank you! Also, very clear diction; didn't need subtitling at all. Nice!
Adding the ElectroBOOM sound effect to the Full Bridge Rectifier (24 secs from start) was a nice touch. I'm sure Mehdi approves!
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Ray_of_Light62
8 months ago
Thank you for this video. It is rare, for a YouTube video, to present content which has true value for the viewer, like this one.
Greetings,
Anthony
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rhr-p7w
8 months ago
This video Is not only technically cool, it's also a masterpiece in storytelling. Not a simple dull or boring moment!
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mrShadowp157
8 months ago
This is the first video that has actually made me understand what power factor really. Is. It also filled some knowledge gaps I had with switching power supplies. Thank you.
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peterarnold4278
8 months ago
I am an electrical/electronics engineer from many years ago. It was a pleasure to watch and understand the improvements that have evolved to the original bridge rectifier and capacitor setup. Very well demonstrated and explained!
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packaroo210
6 months ago
It's cool how at 1:03 you can see the difference in voltage drop between negative and positive, caused by the different coloured LEDs.
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comradef1916
3 weeks ago
in the first 5 minutes you gave me a better understanding of FBRs than my Lv3 BTEC Engineering course did in multiple months, kudos!
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jeremiahchamberlin4499
6 days ago (edited)
Certainly an eye-opener for me! I built a full-wave power supply in technical school, we were worried about filtering the output of the bridge through capacitors. I tried using chokes, but had difficulty because I could never find a way to measure inductance like you can measure capacitance. We never got to power factor in this context except to learn its definition. Buck-boost was ‘explained’ to us, but we weren’t tested on it. We also did not have digital scopes capable of math functions, and none of us were expected to code, except in the course on microprocessors. You’ve certainly opened new vistas for me. Subscribed.
Edit: We didn’t have Hall-effect current probes, either. 🙂
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geofftnz
8 months ago
Great content! Now I'll feel dirty every time I build a plain old full bridge rectifier.
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SoundzRite
8 months ago
Another of the growing examples of semi-complex silicon and coding solving big basic problems. The economy of scale makes it a cheap and superior solution over raw simplicity. Great vid!
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ma_astro
8 months ago
you're so underrated it should be a crime, you deserve more attention for this amazing content.
ElectroBOOM
8 months ago
FULL BRIDGE RECTIFIER!!! Sorry, I'll watch the rest now!
1