yes dear, it is very important safety tool while working on some circuit boards specially power electronics it covers many mistakes while working on some circuit and also easy tool in troubleshooting
Some China guys cleverly integrated three functions into one testing box. i.e. Series Test Bulb Protection with fuses and MCB, Adjustable DC 30v 5A output Bench Hobbyist PSU, and quick simple LED Light Strip testing.
very useful tool for every smps repair. Although, can you explain please Sir, why some times on some TV PSU boards with A-PFC, the bulb (100W) stays fully on despite the fact that the board is OK after the repair?
Thank you for your ongoing efforts to share your experiences and knowledge! I have a question please. Can a servo-motor regulated full automatic transformer be used as an isolation transformer? Thank you again.
thanks a lot for your valuable comment servo transformer is a variable auto-transformer, and auto-transformer doesn't provide isolation \ you have to select separate primary and separate secondary wound transformer
looking at your circuitof the bench test, I was wondering why you would want to turn off the first bulb, the one I made have the bulb always connected, I just use 1 switch in parallel when I want full power
really great and perfect point I am thankful for your valuable suggestion. and you are absolutely correct that first lamp should remain in circuit all the time please accept my best regards 💕
@@HaseebElectronics P=V^2/R, thus, 200w * 50 ohm =V^2, and V = 100 v voltage drop on both bulb (parallel). Did I calculate correctly? From here, we get Voltage is inversely proportional to resistor, limiting the current to the load.
@@HaseebElectronics Since the power is same in series and parallel, may i know why not connect both lamps in series? I know it is convenient for more option but have another reason? By the way, thank you to share this current limiter
For making a series lamp, why there is need to bypass switch? Can you explain how can we decide which watt lamp is required, if 75w 100w or 200w for which application? Some smps have two separate fuse one in hot side ac section and one in hot side dc section after main capacitor with same ratings why?
while using series lamp if we need to apply full power we can apply direct power by just turning ON bypass switch it is useful way for small smps circuit like mobile chargers to some 100 watt industrial power supplies we can sue 100 watt series lamp for inverter ac boards / sewing machines boards / washing machines we can use 200 watt for welding machines and inverters / UPSs we can use 300watt so the same configuration can be utilized for multipurpose repair work
Thank you for very informative video Brother I have question about capacitor voltage Question: if AC voltage 220v after rectifier So how much the Capacitors voltage Should be ?? On capacitor label 100uf 450v so how much the voltage should be after rectifier before capacitor ??? Should we apply 450v on capacitor OR should we apply 320v ??? If you answer that question I will very thankful for that Best regards from Philippines
Sir ,Namaskar Kindly explain in series lamp tester, when to use 100w, 200w or more high watts lamp in series and its benifit as protection, take my humble regards.
Sir may i know what is the importance of making a series lamp with a parallel of 3 lamps 100 watts each what is the purpose of using a 3 lamps in a circuit can you walk us through sir tnx
it is a multipurpose series circuit, so we can add series load as per our requirement. for example while working on inverter welding machine we need ore current with compare to working on a tv power supply. for normal low wattage job we can use 100 watt series bulb for some PFC based power supplies, 100 watt is not enough then we can turn ON the second lamp if we need more current then we can turn on the 3rd lamp, in this case three parallel bulbs will in series of the load, so load can operate safely
@@HaseebElectronics and that exactly what happened to me, after fixing big power supply, 100w lamp couldn't power it ON, this is because of the lamp filament how much power can handle, thank you for the information.
اللہ رب العزت کا خاص احسان اور فضل و کرم ہے میری یاداشت کام کرتی ہے کہ آج سے کچھ پینتیس چالیس سال پہلے میں نے ایک ضرب المثل پڑھی تھی کہ *(لکھے موسی پڑھے خود آپ)* تو آج اس ضرب المثل کا مجھے اچھی طرح اندازہ ہوا ہے اور تجربہ بھی ۔ کہ ہماری پیاری سی بہن نے جو کومنٹ تحریر فرمایا ہے اللہ جل شانَہ کی کرم نوازی سے اس کی مجھے بالکل کیا ککھ بھی سمجھ نہیں آءی۔ تو اگر آپ کی طبع ناساز پر گراں نہ گزرے تو اپنے کومنٹ کا مطلب ہمیں بھی سمجھا دیں تو آپ کی عین نوازش ہو گی ۔ اللہ آپ کو سلامت رکھے آمین
First lk first comment
i am thankful for your valuable comment
@@HaseebElectronics jzakallah khair Haseeb Bhai k ap ny mujhy pin chbhooo di 😜
Haseeb bhai bahut acche tarike se gayad karte hain aap
thanks a lot
best regards
Allah aapko zyada kamyabi de Ameen 💕💕
Aameen
Jazaak Allah khair
like so great sharing superb job my dear
thanks a lot
best regards
An interesting video about making these series test lamps and test board for a workbench. I enjoyed to the 6:28 end. Thank you my friend.
thanks a lot
please accept my best regards
So beautiful sharing
thanks a lot
Lk 92 wonderfull👍 👍👍
Thank you so much dear sister
Thank you very much for Responding to my enquiry 🙏
My pleasure 😊
wow really great and informative videos.. keep sharing
best regards and special thanks
100 lk dear💕💕💕 super share Bhai
thanks a lot dear sister
Ssuepeb sharing
Zabrdast amazing
thanks a lot dear sister
Very good idea sir 👍
Thank you for sharing
Good night 🙏
most welcome and special thanks
WOW Sir Excellent tutorial 👍👍👍
Salam sir very simple way of making a series lamp
Thanks and welcome
Thanks for the knowledge. Thank you for sharing what ever you know so we could also learn
My pleasure!
Amazing video dear friend, have a happy day and Happy New Year!!!
best regards dear friend
have a nice day
hello friends good night it's really good
I Like your all videos Sir from philippines subscriber here
best regards and special thanks
Thank You Appreciate Sir❤🙏
Thank you very much sir for give me a new idea 🙏🙏🙏🙏🙏
it is my pleasure
i will make it practical as well soon
Beautiful information It's must require to check any power supply.
Masha Allah, Excellent sharing
Best wishes from London 🇬🇧
Thank you so much bhai
Gracias, saludos de Bogotá - Colombia - Sur america
Saludos cordiales y un agradecimiento especial por su valioso comentario. Manténgase bendecido.
Good 👍 job haseeb bhai
Very good and useful information sir thanks
special thanks and best regards
Thank you, Haseeb, for the video. That was one of the most informative video.
best regards and special thanks
Thanks for your great videos 🙏🙏
it is my pleasure
hi,
You are really good. The videos are understandable. Thank you so much
You are welcome!
I had some failures before making a series lamp. It is a very good safety tool and everyone should make one if testing smps or atx power supply etc.
yes dear, it is very important safety tool while working on some circuit boards specially power electronics
it covers many mistakes while working on some circuit and also easy tool in troubleshooting
thnk you, that is very simple and useful
You are welcome!
Salam brother full watching your work 💐🇺🇸👍god bless you brother
best regards dear sister
Very good guidance, Thanks
best regards and special thanks
Good job 👍
welcome and special thanks for your valuable comment
Excellent thanks for sharing
thanks a lot
best regards
Thanks sir your great videos
it is my pleasure
Very helpful video ❤️ share super
Assalamu'alaikum 🙏Good morning my friend I admire your amazing work congratulations God bless you 🙏😘🌺🇧🇷
Nice technique. Thank u
You are welcome!
MashAllah bhai
thanks a lot bhai
ماشاءاللہ ماشاءاللہ ذا
بہت شکریہ پیارے بھاءی
Zbrdst informative video😍💖👍
Thank you so much 😊
best regards for your valuable comment
Good information
best regards and special thanks
Nice One My Friend!🙂
Waalaikumussalam wr wb
Good work brother 👍👍👍❤️
جزاك الله خير
best regards and special thanks
Great Job Liked It # 221
thanks a lot bhai
Some China guys cleverly integrated three functions into one testing box. i.e. Series Test Bulb Protection with fuses and MCB, Adjustable DC 30v 5A output Bench Hobbyist PSU, and quick simple LED Light Strip testing.
Assalamualaikum wr wb semangat
Thanks.....sir ji...
bets regards and special thanks
Manha allah thanks u a lot brother God bless
Always welcome
Thanks for sharing this video 👍
thanks a lot
best regards
Great video
thanks a lot
best regards
Your content is so wonderful to me thank you,,???? can you show how in detail to connect wire to the PCB
GREAT SIMPLE VIDEO, I love it
best regards and special thanks
Very good good idea bro.
Thanks and welcome
Nice video bhai
ماشاءاللّٰه
Walikum Salaam Janab Bhai Sahib
best regards and special thanks
Thanks for sharing
best regards and special thanks
Thank you so much for your educative videos,can you talk about how to get the value for burnt resistor.
Wa aleikum salam varhmathulla
thanks a lot for your valuable visit
informative video
thanks a lot dear sister
very useful tool for every smps repair. Although, can you explain please Sir, why some times on some TV PSU boards with A-PFC, the bulb (100W) stays fully on despite the fact that the board is OK after the repair?
Thank you for your ongoing efforts to share your experiences and knowledge! I have a question please. Can a servo-motor regulated full automatic transformer be used as an isolation transformer?
Thank you again.
thanks a lot for your valuable comment
servo transformer is a variable auto-transformer, and auto-transformer doesn't provide isolation \
you have to select separate primary and separate secondary wound transformer
@@HaseebElectronics Thank you for your prompt reply! May Almighty Allah reward you now and then.
Good nice explanation. Very easy to understand.
Calculated 50ohms is 1000w. Its 500 ohms ? Sir 🙏🏻.
looking at your circuitof the bench test, I was wondering why you would want to turn off the first bulb, the one I made have the bulb always connected, I just use 1 switch in parallel when I want full power
really great and perfect point
I am thankful for your valuable suggestion. and you are absolutely correct that first lamp should remain in circuit all the time
please accept my best regards 💕
nice
thanks a lot dear brother
Thanks for your great videos. Is the E wire the same as ground in US?
Yes, correct
Safety Ground / Earth / Ground wire is same
on 5:35，100W bulb each. Means that turns S1 on to use 100w，S1 and S2 on to use 200W?
exactly yes. these switches will provide lamps in series of the load
@@HaseebElectronics P=V^2/R, thus, 200w * 50 ohm =V^2, and V = 100 v voltage drop on both bulb (parallel). Did I calculate correctly? From here, we get Voltage is inversely proportional to resistor, limiting the current to the load.
👍👋
best regards and special thanks dear friend
Does it protect from short circuits shock sir ?
No. it just reduces the input current for the DUT / UUT. in case any short circuit in load it will not allow more damages
@ so if short circuits it’s prevent from tripping breaker. Right?
Watching bong electronic
thanks a lot
I have 2 100w lamp , how do I connect then together so they become 1 200w lamp
connect both lamps in parallel.
as i discussed in the diagram
@@HaseebElectronics thank you ;)
@@HaseebElectronics Since the power is same in series and parallel, may i know why not connect both lamps in series? I know it is convenient for more option but have another reason? By the way, thank you to share this current limiter
جميل
thanks a lot
اسلام علیکم ورحمتہ اللہ
best regards and special thanks
mein ne aap ko pehley he aap ki dil bahaar sharbat aur raw mango wali video per gift kr diey they
aap un videos per mere comments check karein
For making a series lamp, why there is need to bypass switch? Can you explain how can we decide which watt lamp is required, if 75w 100w or 200w for which application? Some smps have two separate fuse one in hot side ac section and one in hot side dc section after main capacitor with same ratings why?
while using series lamp if we need to apply full power we can apply direct power by just turning ON bypass switch
it is useful way
for small smps circuit like mobile chargers to some 100 watt industrial power supplies we can sue 100 watt series lamp
for inverter ac boards / sewing machines boards / washing machines we can use 200 watt
for welding machines and inverters / UPSs we can use 300watt
so the same configuration can be utilized for multipurpose repair work
Nice
thanks a lot dear
I was also thinking to create series lamp but also witl watt/amp meter and switch in same box.
yes that will a very beneficial addition in the series board.
can replace 100w to 12w bulb kindly confirmed
no 12 watt lamp will not allow to run the load.
60 watt or 100 watt lamp having 220 volt is the best choice as series lamp
@@HaseebElectronics Thanks
Hi Sir, can we use fluorescent lamp instead of tungsten? Thank you
Thank you for very informative video
Brother I have question about capacitor voltage
Question: if AC voltage 220v after rectifier
So how much the Capacitors voltage Should be ??
On capacitor label 100uf 450v so how much the voltage should be after rectifier before capacitor ???
Should we apply 450v on capacitor OR should we apply 320v ???
If you answer that question I will very thankful for that
Best regards from Philippines
can i use 60 watt lamp to test tv?
yes 60 watt can be used. in some conditions, it will not provide enough current.
if light up. then use 2 lamps in parallel 60 watt each
Sir plz make a vidio on how to control more heating of a solder iron
i noted it and i will try my best to prepare it as soon as possible
Use full video yung ganration
thanks a lot. best regards
Sir g kl jo video smps di video bnayi c oh hindi ch kdo upload kr rhe ho i m waiting 😅
ji bhai mein ne wo record kr li he. 1-2 din take complete ho gi. abhi editing Karni he us ki
@@HaseebElectronics ok sir 🙏🙏
Sir ,Namaskar Kindly explain in series lamp tester, when to use 100w, 200w or more high watts lamp in series and its benifit as protection, take my humble regards.
Nice g
Asalamualikum Way we can not ude led lampe as a test lampe
Sir may i know what is the importance of making a series lamp with a parallel of 3 lamps 100 watts each what is the purpose of using a 3 lamps in a circuit can you walk us through sir tnx
it is a multipurpose series circuit, so we can add series load as per our requirement. for example while working on inverter welding machine we need ore current with compare to working on a tv power supply.
for normal low wattage job we can use 100 watt series bulb
for some PFC based power supplies, 100 watt is not enough then we can turn ON the second lamp
if we need more current then we can turn on the 3rd lamp, in this case three parallel bulbs will in series of the load, so load can operate safely
@@HaseebElectronics tnx for the information sir
@@HaseebElectronics and that exactly what happened to me, after fixing big power supply, 100w lamp couldn't power it ON, this is because of the lamp filament how much power can handle, thank you for the information.
Sir ji , all three blub are in parallel , not in series , how it will be 300w if all switch are on.please clear.
👍
best regards and special thanks
Hahaha es ka mtlb bnti ka sabun slow hy means mera net slow tha
اللہ رب العزت کا خاص احسان اور فضل و کرم ہے میری یاداشت کام کرتی ہے کہ آج سے کچھ
پینتیس چالیس سال پہلے میں نے ایک ضرب المثل پڑھی تھی کہ
*(لکھے موسی پڑھے خود آپ)*
تو آج اس ضرب المثل کا مجھے اچھی طرح اندازہ ہوا ہے اور تجربہ بھی ۔ کہ ہماری پیاری سی بہن نے جو کومنٹ تحریر فرمایا ہے اللہ جل شانَہ کی کرم نوازی سے اس کی مجھے بالکل کیا ککھ بھی سمجھ نہیں آءی۔ تو اگر آپ کی طبع ناساز پر گراں نہ گزرے تو اپنے کومنٹ کا مطلب ہمیں بھی سمجھا دیں تو آپ کی عین نوازش ہو گی ۔ اللہ آپ کو سلامت رکھے آمین
Mine shows 42 ohms is this ok.
Hi. Incadescent bulbs are forbidden for sale in the EU . How can EU tech make one ?