As-salamu alaykum thank u SIR for answoring my questeion.Very good explanation thank u so much May your love, service and sacrifice during the holy month keep Jannah's doors open for you forever. May your Ramadan keep you close to Allah and your Eid close to family, friends and all of your favourite things. Wishing you a Ramadan filled with opportunities for growth and inner peace
Assalamo alycom wa ruLLAHy wa brakatuh dear brother, I need help urgently. I have invt solar transformer, it's GD100-011G-4-PV . I accidentally reversed the incoming poles from the solar plates, where by what look like two resistors on top of each other blew up. My problem is that I can't tell their ratings. I searched the internet but with no avail. Can you be of help ? Thanks in advance
Nicely explained. Any body can learn easily by watching once your vedeo. No words for you. You are great. Thank you so much. God bless you and your family.
Well explained, in simple words , college professors tend to ignore the basics and stick to solving problems without getting the student understand the basic concept.
Excellent explanation sir..... learning many concepts from your videos...one doubt.....if pfc controler is there then ,will there be necessary for output feedback to pwm controller,for output regulation ,or pfc will manage by its own.....
Hi bro Thanks for your best tutorial I have a question, in this video you said, if we decrease duty cycle, output voltage will drop or if we increase duty cycle the voltage will increase, but in another video: You said that the flyback works with the reverse duty cycle, that is, if the transistor is active, we have no output, and if it is not, we have an output. But in this video you said the opposite
Great explanation! I was wonder if the flashing in the series bulb in most of your video is due to the PFC circuit ramping up the voltage in steps to slowly and more efficiently charge the bulk capacitor? Can you see the bulb flashing with your eyes or is it an effect of the camera sync. Thanks again and have a great weekend.
thansk a lot for your valuable appreciation yes the series lamp flashes and it is observed visually it is due to linear increase in smooting capacitor until the volatge value on DC rail is not maintained, the PFC controller tries to use maximum duty cycle which results to dropping the line voltage due to series lamp, which causes to turn off PFC controller thus line volatge regain, and PFC controller restrts this reboot process remains active until the volatge are maintained on DC rail
So, PFC controller is also switching at very high frequency as each 50 Hz period starts with very low voltage ? So it also ameliorates the power factor as current is now taken whole the 50 Hz period ?
Serbian translation is already added Click on video screen in yourube Then CC THEN SETTING icon from the same video screen select CC or translation Then select your preferred language Serbian
@@HaseebElectronics I am impressed by your heart to comment of your good self. Nevertheless, this response from you, full of many bla bla, speaks volumes of your shallow knowledge on the subject. No explanation is to the point. Please search for the part name that has been used in the circuit and study well. These are non-polar capacitors. When used in series in AC supply, these produce reactive resistance. This is dependent on its value in mfd and hz of AC. I don't expect that you may digest any more knowledge on it. Happy ignorant expert.
Thanks for noticed my question. Now I can understand why PFC CIRCUIT used in high watt smps . Thank you So much Haseeb bhai . Hu to Mai India me rehne wala banda pr aap se bahot kuchh shikh raha hu . KHUDA AAPKO AUR AAPKE GHAR PARIWAR KO KHUSH-HAAL RAKKHE YE HI MERE DUA HAI . THANKS ONCE AGAIN HASSEB BHAI .
Thank you for sharing your knowledge & all your incredibly detailed videos. They are extremely informative & helpful. Your explanations are clear and really make it easy for us to understand. Huge respect!!
best regards i am planning to record a very detailed video on PFC in power supplies it will available very soon i will try my best to each and evry smallest part in theory and practical
most of the unipolar magnetic switching topologies need snubber circuits (such as flyback, forward,). bidirectional magnet (resonant power supplies) are free from snubbers
Selamün aleyküm kardeşim bir sorum var. Bu videodaki 12:36 civarındaki yerde tl431 ve oktokuplöre gelen bağlantı yolu aynı hat üzerinden geliyor. Bu doğru mu yoksa yanlışlıkla mı çizildi. Doğru ise oktoküplör GND ile bağlantısını nasıl sağlıyor da led yanıyor😮 tl431 in altındaki dirençin bağlı olduğu GND den mi devreyi tamamlıyor😊
So basically PFC exists only because of different main voltages in different countries when high amperage output is required? If all voltage was 240V, PFC would not be needed?
Nice , u are the master in power electronics Your description is very easy to learn basic concepts, may God bless you, I always see your videoes when ever I stuck in my electronics work, and I get ways to go ahead.
assalamu alaikum, i have a problem in my smps 12 v 20A, why not showing 5 v refference voltage in uc3845 ic , refference voltage showing 650mv. , vcc showing 8v. after i load the led 50w bulb its flickering, what is the problem?
Sir, I hope you are doing well. I have been facing problem with my pc power supply. The problem is mainly a buzzing sound when the power is introduced to the power supply and the buzzing sound increases when a load is given to it. How can I ge rid off this problem?
Dear my brother engineer Hseeb this massage from Egypt thanks a lot for your keen skill and efforts done by you to produce such interesting videos kindly I ask you is there is any software presented high frequency transformer used in this circuit best regards
I was also going to ask the same question regarding PFC. Today you have very nicely explained and cleared the concept. Request you to make video of PFC circuit diagram. Thak you from Ahmedabad- India.
Very good! I like your videos more and more because they have theory and practices.I am from Spain but I understand your English perfectly.Congratulations and so on
Sir, i am very thankful to you for sharing this precious theory.... apki english video is impressive but we can not keep it in our mind for long time but in urdu.
This is a very interesting topic. It would be good to visually see PSU with PFC circuit connected to multimeters and oscilloscope at multiple points (switching IC, PFC IC etc) to see actual changes in input voltage and switching duty cycle when load and input voltage is changed while the PSU is working. If you have adjustable load and adjustable power supply maybe you can do this in a future video.
