Good video! I didn't know resistors came in TO-220 packages, but not surprised. Makes a lot of sense!
@sumitmamoria2 жыл бұрын
Nice video. Would be very interested in measuring loop stability. 👍
@asafabraham72064 ай бұрын
Great explanation!
@windward2818 Жыл бұрын
As I understand power rail probes, their operation requires the power supply rail to be below a certain impedance over frequency as to not form a divider with the probe. This is not usually a problem if the power rail probe is used as a final test for ripple after the power supply impedance has been fine tuned (no peaking). So, the testing approach may be follow a set procedure of equipment and tests performed depending on how the lab is equipped.
@benwolfe13012 жыл бұрын
Love these videos, super helpful!
@Tarbard2 жыл бұрын
Good video. The electronic load is more expensive that I would have thought.
@reasonablebeing53922 жыл бұрын
Useful video!! Interested in seeing a project for a 30 Amp 5V power supply with adjustable + or - 2V to account for losses at the load.
@NeverTalkToCops12 жыл бұрын
Excellent!
@alessandrolima42662 жыл бұрын
Really amazing !!!
@JLCPCB2 жыл бұрын
Amaizing video! 😊
@stanislavpopelka27212 жыл бұрын
How has the power rail probe been connected? For Vout ripple measurement, the GND clip cable on the passive probe should be avoided due to the large ground loop. E.g., a spring adapter is more suitable for this kind of measurement.
@debasishtahbildar9603 Жыл бұрын
Always love your videos... Great content
@Chris-ut6eq Жыл бұрын
Interested in all aspects of SMPS characterization. Also interested in hobbyist level scope review. And yes, making my own SMPS as a hobbyist :)
@jstro-hobbytech2 жыл бұрын
not that I'm don't droll over things on the site or your gear. I don't have gear envy. I've worked my way up to a decent siglent I got last week. having a mouse pointer right on the scope screen is better than touch haha
@change_your_oil_regularly42872 жыл бұрын
Doesn't the required minimum load depend at least in part on the output voltage? 1k ohm @ 5v = 5mA 0.025w 1k ohm @ 240v = 240mA 57.6w I could easily be wrong I'm no electrical engineer just a hobbyist
@bald_engineer2 жыл бұрын
As stated in the video, it depends on what the datasheet for the converter IC says.
@snivesz32 Жыл бұрын
When measuring voltage ripple of a power supply, its customary to put in AC mode, at 20Mhz, and put the power supply under load, but is it normal to put a 0.1uF capacitor in parallel with the output terminals? Wouldn't that serve to suppress the very AC noise we are trying to measure? The Riden video instructs us to measure Vpp ripple in this fashion, why would that be?
@dalexplym4882 Жыл бұрын
Probably to (somewhat?) suppress high frequency noise which is not the same as line frequency "Ripple" at 60/120 Hz, etc. Yes, we need to be clear about our objectives.
@Joeballs1872 жыл бұрын
Linus tech tips was just talking about a cameras battery could you watch the bored on that so we can see what's actually happening there
@sueserich1587 Жыл бұрын
Hey m8 my cb radio base station 240v mains has a very noticeable hum even with the volume down, it is not a switch mode but linear, any suggestions? Cheers
@cipher-13 ай бұрын
Try add in the 12V input line one 0.1uF capacitor or another you have. Another way is add in the positive an inductor. Doesn't work. Then maybe your power supply is not regulated and need change for a better one.
@CABohol2 жыл бұрын
🔌🔬
@jstro-hobbytech2 жыл бұрын
I think you're a great teacher but 90 percent of people can't afford to buy from element 14 or its permutations across the world
@karthikraja96982 жыл бұрын
Inverter welding machine topic sir
@tbthomp2 Жыл бұрын
Purdue?
@taltechchip58272 жыл бұрын
Just put your multimeter to messure AC. A clean DC power source looks like 0.0v AC. If you messure anything else. You know your caps are crap and need to be replaced
@bald_engineer2 жыл бұрын
No, that does not work with high-frequency switching noise. The DMM will measure 0 VAC. Follow the link in the description over to e14 for pictures I took showing my DMM's measurements.
@phonesmith51892 жыл бұрын
Nowadays DMM has 10MHz bandwidth! It is good enough to get most important performance of the SMP. Check your equipment specifications on hands frist.
@bald_engineer2 жыл бұрын
@@phonesmith5189 Again. I addressed this on the e14 link above. My 2 year old DMM, modern design with BLE, measures 0 VAC. And even if your DMM could measure the noise, without an FFT, you won’t know WHAT value LC to add. A DMM alone is not enough. Period.
@modorangeorge499111 ай бұрын
@@phonesmith5189what dmm has 10Mhz bandwith in AC mode ? Expensive ones can do only 100 khz and a bit more.
@ameliabuns40585 ай бұрын
D: All this is so expensive and complicated. I'm just a simple dumb bunny...
@bald_engineer5 ай бұрын
Yes. Designing and validating switch-mode supplies is indeed complicated.
@clems69892 жыл бұрын
Avoud 1:1 probes AMAS !
@pro61912 жыл бұрын
Hello
@garymoore34972 жыл бұрын
Surface power supply can filter out all that switching noise . . . .
@bald_engineer2 жыл бұрын
…
@JAKOB19776 ай бұрын
You should really do it faster when showing your vital seup on the scope to your viewers 5:20 c'mon bud, you can do it, faster faster.. hurry godammit.
@bald_engineer6 ай бұрын
If only your "feedback" wasn't almost two years late!
@RomanKuechler2 жыл бұрын
Good, valuable knowledge - presented at an absurd and nonsensical speed. You could do better.