Thank you for another great video. I know that you are aware, but for your novice viewers, the oscilloscope has a x10 setting, on its menu. If that function is selected, the scope will calculate the correct 162 volt value. As the x10 protection resistor is built into the scope probe handle, their is no loss of protection by having the x10 menu setting, from the beginning.
why do you put two resistor in each lead of probe,why it is requires during measuring of ripple voltage.if required it then how much value of resistor should be put on?
The testing method would be the same, but you simply would have the load attached. You are correct that this information may be the more useful. How the capacitor handles a load is what is important. If you have both measurements, that is without and with the load, you may be able to identify a capacitor that is weakening, or has a transient fault. Some more specialized capacitor testers do provide an adjustable, heavy load, with which to burden the capacitor, to look for leakage at their rated voltage value.
Yes, absolutely we have to apply line voltage to the isolation transformer primary side and the output from secondary winding is to be applied to the oscilloscope
Sir, how can we test mosfet it is work or not? For example 13N50C , when I control drain and source pin I see multimeter diode mode 0.490 then I trigger gate pin then D and S pin show 0.430 can we say it is damaged ? It doesn't show short in continuity mode,
Sir I have another question please. I have an old 9v ac dc adapter i connected it to my multimeter and realized there's something wrong the reading not stable and the meter act wrong then i open it and found there is a transformer and a bridge diodes then i grab another multimeter and measure the voltage of the adapter and there is un stable voltage between 8 and 10 volts and i changed the selector to AC Voltage and found that there is 4v ac then i tested the 4 diodes and found they are fine. I do another test i connect a 9v battery to every single one of these diodes and measured the voltage in backwards and found out they leaks about 25mV. Is it normal? I'm sorry for the long question. Jazaka Allah khair.
It's most likely the capacitors. Never connect a diode directly to battery you will damage them. Search how to test diode on the internet, there are plenty of videos.
Is there something wrong if I find out the output of 5v smps in the DC voltage there is 5v and when i change the multimeter to AC Voltage i found 10v? It's a Samsung mobile charger.
Hello M Haseeb, nice video. You mentioned Xbox, i have 2 of them that i would like to convert to car charging batteries. They have no output because of supervisor, can you please show how to bring them back to life ? thanks.
Hello sir I am asking you if you can reply to my message thank you about a issue I can’t explain. I design a buck converter but the output voltage dropping even though there is voltage follower the duty cycle goes high when and load is added but voltage drop to 8 volt always , the input voltage is 60v from a power supply 1000 watts I use 4700uf for input filter and 3300 for output filter but for some reason I don’t know why the capacitor not filtering the ripple and holding current the ecr testing shows 9.0 % 34ohms the capacitor is large , i try using a old amplifier blue color capacitor 3300 not so big half the size of the big one ecr test 6.0 %31ohms the current was holding very will but the capacitor soon fail no doubt because it old I try finding the same capacitor but fail to find it online so can you please explain why the newer capacitor won’t work
yes dear. it was a question from one of my viewer ripples aur switching noise aur load transition to output capacitor per he check kiey jaatey hein I will do that, no problem
![[407] ZD39 (ZD Series) 1.3 Watt Zener Diode Datasheet](http://i.ytimg.com/vi/37qL6i9-Kdc/mqdefault.jpg)
![[407] ZD39 (ZD Series) 1.3 Watt Zener Diode Datasheet](/img/tr.png)
Firstly comment and view very interested and informative video pin me dear
Thank you for another great video. I know that you are aware, but for your novice viewers, the oscilloscope has a x10 setting, on its menu. If that function is selected, the scope will calculate the correct 162 volt value. As the x10 protection resistor is built into the scope probe handle, their is no loss of protection by having the x10 menu setting, from the beginning.
yes sir
I salute you. really it is an excellent tip.
please accept my best regards 💖
excellent sir . I learnt something new today
best regards
Zaberdast u doing good work ma sha Allah
Ur vdos r really very helpful
Jazzakallah
Thank you sir...Now i understand how to check TQ very much for making video to explanation
You are most welcome
Wonderful work dear friend, happy weekend!!!
MASHA ALLAH super awesome vlog, information overloaded, a big thumbs up from my side, stay blessed
The oscilloscope demonstration is very helpful and the dmm technique is of great help.
best regards
This is the video I m looking for...thank you sir..
Most welcome
it is my pleasure
Good evening. Informative upload. Keep sharing brother
Greetings and thank you from Brazil
best regards and special thanks
22👍🏻🤝🔔🌺 দেখে নিলাম 🌺
best regards and special thanks
Maasha’allaah so informative and amazing video bai 👍👍
Masha Allah nice sharing dear
Thank you so much 😊
why do you put two resistor in each lead of probe,why it is requires during measuring of ripple voltage.if required it then how much value of resistor should be put on?
He use them just to make the connection. The probes are not connected on any of them.
This is very useful information sir thanks for sharing this knowledge to us
stay blessed and
best regards
21lk my dearest🌹🌷🌺ure all video superb
Salamou alikoum nice video big likèeeee 🌹🌹🌹😊
thank you haseeb sir. What about ripple based on load parameter?. Maximum ripple when applying recommended maximum load .
The testing method would be the same, but you simply would have the load attached. You are correct that this information may be the more useful. How the capacitor handles a load is what is important. If you have both measurements, that is without and with the load, you may be able to identify a capacitor that is weakening, or has a transient fault. Some more specialized capacitor testers do provide an adjustable, heavy load, with which to burden the capacitor, to look for leakage at their rated voltage value.
Sir are you using an isolation transformer for measuring the high voltage using the dso
Good video
Can I know, should I use isolation transformer before of oscilloscope power in this case?
Thanks
Yes, absolutely
we have to apply line voltage to the isolation transformer primary side and the output from secondary winding is to be applied to the oscilloscope
@@HaseebElectronics thanks allot
جزاك الله خيرا
👏👏👏👏 WELL EXPLAINED SIR. SALUTE
thanks a lot
Hello my friend! Thank you and have a great weekend! 🙏👍15
Thanks for sharing good knowledge
Excellent information about voltage measurement
best regards
Lk 30 good job brother 👍👍😊
Sir, how can we test mosfet it is work or not? For example 13N50C , when I control drain and source pin I see multimeter diode mode 0.490 then I trigger gate pin then D and S pin show 0.430 can we say it is damaged ? It doesn't show short in continuity mode,
Thank you for your informative video
Thanks for sharing good knowledge my friend thanks God help us
Good Sharing friend
Informative video 👍
MAShA ALLHA
Super
Stay connected 💓❣️❤️❤️
Beautiful information
thanks a lot
Sir I have another question please.
I have an old 9v ac dc adapter i connected it to my multimeter and realized there's something wrong the reading not stable and the meter act wrong then i open it and found there is a transformer and a bridge diodes then i grab another multimeter and measure the voltage of the adapter and there is un stable voltage between 8 and 10 volts and i changed the selector to AC Voltage and found that there is 4v ac then i tested the 4 diodes and found they are fine.
I do another test i connect a 9v battery to every single one of these diodes and measured the voltage in backwards and found out they leaks about 25mV.
Is it normal?
I'm sorry for the long question.
Jazaka Allah khair.
It's most likely the capacitors. Never connect a diode directly to battery you will damage them. Search how to test diode on the internet, there are plenty of videos.
@@techguy666
There is no capacitor in the adapter.
I was powering the multimeter with an adapter instead of the 9v battery.
Anohter good sharing
thanks a lot
Assalamu alaikum sir keya aapko malum nahi hai iska equivalent ic lnk626 7pin dip
no dear
mujhey lnk626 ka equivalent maloon nahi he. I will try to get some solution
Is there something wrong if I find out the output of 5v smps in the DC voltage there is 5v and when i change the multimeter to AC Voltage i found 10v?
It's a Samsung mobile charger.
Hello M Haseeb, nice video. You mentioned Xbox, i have 2 of them that i would like to convert to car charging batteries. They have no output because of supervisor, can you please show how to bring them back to life ? thanks.
welcome brother
sure i will start a complete series and its hacking possibilities. i will do it soon
Hello sir I am asking you if you can reply to my message thank you about a issue I can’t explain. I design a buck converter but the output voltage dropping even though there is voltage follower the duty cycle goes high when and load is added but voltage drop to 8 volt always , the input voltage is 60v from a power supply 1000 watts I use 4700uf for input filter and 3300 for output filter but for some reason I don’t know why the capacitor not filtering the ripple and holding current the ecr testing shows 9.0 % 34ohms the capacitor is large , i try using a old amplifier blue color capacitor 3300 not so big half the size of the big one ecr test 6.0 %31ohms the current was holding very will but the capacitor soon fail no doubt because it old I try finding the same capacitor but fail to find it online so can you please explain why the newer capacitor won’t work
Great sir...
best regards and special thanks
Good information sir
Hello Sir Can you share a video to how to test inrush current in smps using digital oscilloscope
kindly check video number 507 for inrush current measurement
good explanation
thanks a lot
Sir how to measure bandwidth of signal in oscilloscope
Great upload
Amazing work
thanks a lot
Superb 👍👍👍👍
sir g 1video banai ATX SMPS pr 5VSB OK hai pr sp/on 5v hai pr smps on ni hoti
Aslamo alikum g bro
thanks a lot dear sister
الله يسعد مسائك بالتوفيق 👍
نشرنا جديد ننتظر تعليقكم👈
How to measure ripple current and what we get current ripple out put ?
Nice 👍
thanks a lot. stay blessed
Good information
Please make a video to check the ripple and noise of any SMPS output in CRO🙏🙏🙏
Good sharing f wt honestly
Ripples agar dekhna he hai to Output par measure karo it's useless to measure ripples on the hv side because we have to deal to with the load side
yes dear.
it was a question from one of my viewer
ripples aur switching noise aur load transition to output capacitor per he check kiey jaatey hein
I will do that, no problem
Kindly explain it in detail
yes dear, i have to explain it in detail in upcoming session to check output capacitor
@@HaseebElectronics also how to measure ripple after rectification before connecting smoothing capacitor
Very nice
Beautiful
وعليكم السلام ورحمه الله وبركاته
👍