Capacitor Dropper Circuit | Transformerless Power Supply

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Capacitor Dropper Circuit | Transformerless Power Supply

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Capacitor Dropper Circuit | Transformerless Power Supply
In this video we will calculate required capacitor value for a transformer-less power supply. watch the video till end do you don't miss any detail.
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Пікірлер: 874

@TEKNOISTIX Жыл бұрын

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@turkiababtain5834 3 жыл бұрын

I love this video and the explanation keep going . It’s very organised and clear . I am not indian and with the help of the subtitles I understood thank you for your time to add English subtitles

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@istiyakali8920 3 жыл бұрын

@vipulsud 2 жыл бұрын

@@TEKNOISTIX Bhai can you explain with 110V AC input how thsi can be done to get 12v DC output

@DK-sg3oe Жыл бұрын

@@TEKNOISTIX how to contact or connect sir

@williamlangley2044 Жыл бұрын

I like the way you present your videos it's clear and precise,I have trouble with math formulas you make it easier to grasp it better. Thank you.

@lalithprasanna6214 2 жыл бұрын

Your explanation is very clear. And u born for the teaching. Good job keep it up. I am from Sri lanka

@js1169 3 жыл бұрын

Amazing video! Never have I seen such an easy-to-understand lecture!! Thanks!

@TEKNOISTIX 3 жыл бұрын

Great to hear!

@VS-qs7fn Жыл бұрын

Thank God for closed captioning. I cant understand you but I learned ALOT! THANX!

@TEKNOISTIX Жыл бұрын

You're welcome

@gurpaldandiwaldandiwal1845 3 жыл бұрын

Perfectly described, no one shows like you. Always keep doing great.

@TEKNOISTIX 3 жыл бұрын

Thanks

@lalithprasanna6214 2 жыл бұрын

Very clear good teaching ability. Keep it up. I am from Sri lanka

@vijaytivilegelifeblogmsa4244 3 жыл бұрын

वाहे गुरू की जय हो जय श्री गुरु गोबिंद सिंह जी की जय best बताते हैं धन्यवाद आपका दिन मंगलमय हो i like sabcrise your चैनल सर thanku welcome

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@r.k.419 7 ай бұрын

बहोत ही अच्छे से समझाया आपने ऐसे समझाने वाला वीडियो पूरे यूट्यूब में नही मिला धन्यवाद

@nalinchawda 3 жыл бұрын

It was great idea to check the voltages across diffrent sections .That gave a clear picture. Thanks .Stay 🙌

@TEKNOISTIX 3 жыл бұрын

Thanks

@tajulislam4017 Жыл бұрын

i know hindi but full video understand. i like you and your video. Bangladesh

@ydofficial01 3 жыл бұрын

Dear Sir, Your are the best Instructor in the world. Great Explained, I'm new Subscriber from Today.

@TEKNOISTIX 3 жыл бұрын

Thanks

@prasanthkumar2950 3 жыл бұрын

your captions are very useful bro and easily understood.... bcoz I m not a hindi.... i m tamil.

@TEKNOISTIX 3 жыл бұрын

Thanks

@gkdresden 3 жыл бұрын

Well, the maximum input voltage of the 7805 is specified to 35 V. You operate the device across its break-though voltage, which is obviously around 46V. Only the input capacitor and the internal break through resistance of the 7805 limits the undefined current (here considerably smaller than 12 mA) across the device. I am surprized that the 7805 is still working if it's break-through voltage is exceeded. Nevertheless, this operation can harm the 7804 after a certain time and there will be no more 5V limiting behaviour after a while and the diode can be damaged too. My suggestion is to eliminate the 7804 and to use a 5 V zener diode behind the smoothing capacitor to get always a well defined voltage across the LED and its resistor. It will also draw down the rectified voltage to well defined 5 V. So you can use a smaller electrolytic capacitor with a voltage rating of 10 V (how did you decide your voltage rating or did you use a 400 V specified device). The current across the zener diode and the LED is well defined. Even when the LED gets disconnected, the circuit will not fail.

@TEKNOISTIX 3 жыл бұрын

Thanks

@user-vo6yr8rf4c Жыл бұрын

Zener diodes dissipate power all the time. I prefer using regular ics but the input side must be protected with higher voltage zener diode (close to 35v) . At higher voltage, zener diode's power dissipation should be lower.

@gkdresden Жыл бұрын

@@user-vo6yr8rf4c no, the power dissipation of a Zener diode at a higher voltage is higher. In fact, at voltages higher than 8 V Zener diodes doesn't work with the Zener effect but with avalanche breakdown. Considering the data sheet for the BZX55-series in all cases you need to set the operating current for the Zener diode to at least to 5 mA. So for 5.1 V you only dissipate 25 mW. At 30 V you dissipate 150 mW. Furthermore you dissipate power in the linear regulator. For 12 mA and a voltage drop from 30 V to 5 V you dissipate 300 mW. So in total you dissipate 450 mW. This is much more than 25 mW. The most important rule for a capacitor voltage supply is to develop the active power at the lowest useful voltage. Otherwise you not only increase the power dissipation but also the reactive power at voltages considerably lower than the mains voltage. The reactive power for the zener diode regulator is 2 W. The your solution it is 40 W!

@RaahulKushwaha Жыл бұрын

Well said

@kennmossman8701 9 ай бұрын

@@user-vo6yr8rf4c omg VR IC also consume power all the time

@victormera7243 2 жыл бұрын

Best electronics video I have come across

@amerrhamza3257 3 жыл бұрын

sir huge respect and love from pakistan .sir your way of teaching is very good.

@TEKNOISTIX 3 жыл бұрын

Thanks.. Do share these videos and channel with your frends if you think it can help someone.

@justdoingodswork Жыл бұрын

Thanks for the video, Its really helpfull not just the theory but the practical testing good too.

@AnilMaurya-cb8bx Жыл бұрын

Sir आपके वीडियो बहुत ही उम्दा होते है और आपके समझाने का तरीका बहुत बढ़िया है क्यों की वो प्रैक्टिकल के साथ होता है आपसे रिक्वेस्ट है की एक वीडियो । पैनेल में लगने वाले डिजिटल वोल्ट मीटर और एम्पीयर के सर्किट डायग्राम पे भी एक वीडियो बनाए की डिजिटल वोल्ट मीटर और एम्पीयर मीटर कैसे काम करता है ये बोल्टमीटर और एम्पीयर मीटर जो आजकल सबमरसेबिल पंप के स्टार्टर पैनेल में लगा होता है

@TEKNOISTIX Жыл бұрын

Volt current meter already bhut sari videos me use kiya hai waha explanation hai

@AnilMaurya-cb8bx Жыл бұрын

@@TEKNOISTIX Link dijiye

@subramanyakadaba4730 3 жыл бұрын

explanation and calculations are splendid. Look forward to many more simple projects. thanking you . K. subramanya Banbalore.

@TEKNOISTIX 3 жыл бұрын

Thanks

@talkwell5012 2 жыл бұрын

I don't know hindi but Amazing class all doubt cleared thanks 🙏 From kerala

@walterdavey3276 3 жыл бұрын

You have probably explained this already, but as I am not able to understand the language in the video, but can read the comments, it seems that most folk are regarding the capacitor as a voltage dropper. While this is the effect of the capacitor, it should be remembered that the primary effect of the capacitive reactance it to limit the Current. This then allows us to pass that current through our load, the load actually defining the voltage across it.

@velayudhanulliyeri2346 10 ай бұрын

Excellent presentation with proper clarifications makes a perfect project. Thank you very much.

@foxbox7781 3 жыл бұрын

Hi. I think you have made a mistake in your circuit. You calculated the circuit for 12mA. But you have a voltage drop of 15V above the 220 Ohm resistor. That means a total current of 68mA. The calculation for the voltage drop capacitor is wrong. 1 ------------------------------- = 125nF not 1.25 µF 2x3.14 x 50 x 25333 I think the voltage regulator is close to end in a gammaburst ;-) Nearly 50 Volts is very much for a 7805. That could be the reason therefore that the output voltage is only 4.8 Volts. The regulator is running critical. Normaly the output voltage of a 7805 is very close to 5 Volts. But regardless of that it is a nice video. Thanks.

@viswanathanramakrishnan7613 3 жыл бұрын

Very clear explanation of transformer less circuit designing video you have made. This is the one video wherein I could gather the information on taking the RMS voltage for designing the correct PS. Kudos.

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@manikbankar5218 2 жыл бұрын

Sir, your way of explaining is having fully touch of an Engineer. You explain the things with theory and problem calculation and with reasoning which helps to understand the subject without any doubt. Thanks for your nice explanation.

@sabseekhodv 3 жыл бұрын

Method of explanation is best. God bless you

@TEKNOISTIX 3 жыл бұрын

Thanks

@macmusic12 3 жыл бұрын

your teaching method is excellent, thank you. 😀👍🌼

@TEKNOISTIX 3 жыл бұрын

Thanks

@kapilmeetsingh3702 3 жыл бұрын

Sir you deserve 1000000000000000000000000000 subscribers 👍 because you are helping us too much. Thank you sir for these amazing videos. Keep it up 👍

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@kapilmeetsingh3702 3 жыл бұрын

Your welcome Sir

@TEKNOISTIX 3 жыл бұрын

Do share these videos and channel with your friends

@kapilmeetsingh3702 3 жыл бұрын

Sure sir why not 🙏🏻

@TEKNOISTIX 3 жыл бұрын

👍

@basantkumarbhumij7827 3 жыл бұрын

Sir, I was searching this type electronic circuit with proper mathematical and practical experimentle which giving correct way of getting OUTPUT VALUES. many many THANKS

@TEKNOISTIX 3 жыл бұрын

Do share with others if you really like It will also help me to reach more interested people Tgis channel is new so not much people know about it

@chandrasekharjakki9774 3 жыл бұрын

Super explained. Explained strightly no time waste. Subtitles manner is good .Some times subtitles came across(Sometimes I could not see the circuits ). Please put explaining article little bit above.

@TEKNOISTIX 3 жыл бұрын

You can turn off subtitles on your phone or pc just clik the cc button below the video

@Daboresa 3 жыл бұрын

One of the best explanations of transformerless circuits based on explanation, calculations and diagrams and you have been honest at least you have said that these kind of circuits can only work on low Amps unlike other videos of these kind, so thanks in advance. The video was in Hindi but at least the subtitles help 👍

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@hanshikaagrawal6035 3 жыл бұрын

But jandar, shandar video hai. You are most intelligent person. Thanks

@TEKNOISTIX 3 жыл бұрын

Thanks

@imranyousaf2996 3 жыл бұрын

I like ur method of teaching

@TEKNOISTIX 3 жыл бұрын

Tha ks

@tuhinkarmakar554 3 жыл бұрын

I loved it. I never knew how to calculate values . Thanks to u

@barokahlampuchanel4102 Жыл бұрын

Mantap thank you from indonesia

@urla.tejaswitaruneee2483 5 ай бұрын

Super Explanation about the stepping down voltage, Rectifying the voltage, filters, regulating voltage and getting required output voltage. Tnq.

@Latest_creation7798 2 жыл бұрын

Aap bahot badiya samjhate ho sir

@erikdenhouter 3 жыл бұрын

Watch... the voltage on the regulator input measures 46V. The absolute maximum input voltage for the LM7805 is 35V. Also the filter cap looks like max. 25V, so Boom expected on these two parts. Better maybe, but never perfect, is to place the 220Ω resistor in the plus line to the regulator, and use a large zener, e.g. 20V 1W (at least, but measure to be sure) to ground between resistor and regulator to limit the voltage there, so that the input at the regulator an filter cap does not exceed 20V. Simple thought, have not tested.

@TEKNOISTIX 3 жыл бұрын

This video is for dropping capacitor calculation.. For exact value of filter capacitor you can refer to the another video on the channel capacitor value calculation formula.

@roseelectronics4582 3 жыл бұрын

I can't stop dancing since I stumbled upon this rather new but great channel. Hope to learn a lot. I can expect what's coming.

@TEKNOISTIX 3 жыл бұрын

Thanks.. Keep supporting

@daljeetsinghsokhey605 2 жыл бұрын

Please post videos of your dance

@roseelectronics4582 2 жыл бұрын

@@daljeetsinghsokhey605 i already have a few videos of my own. Can you check them out?

@ashoksafaya5397 10 ай бұрын

बहुत पसंद theory plus practical, what more does one need.Thanks.

@ashdlll7892 3 жыл бұрын

I love electronics and i am your fan

@TEKNOISTIX 3 жыл бұрын

Thanks

@kapilmeetsingh3702 3 жыл бұрын

Sir I am in 9th grade and I am very very thankful to you for providing free high quality content to us. I am very passionate in electronics

@TEKNOISTIX 3 жыл бұрын

Thanks.. Keep supporting

@kapilmeetsingh3702 3 жыл бұрын

Sir I'll always support you 👍

@TEKNOISTIX 3 жыл бұрын

👍

@imranyousaf2996 3 жыл бұрын

U are my ideal teacher. Thanks

@TEKNOISTIX 3 жыл бұрын

Thanks

@ravigadge-wv3vg 2 жыл бұрын

please describe all components details and circuits diagram,ur circuit explanation is very nice and ur use very simple languages. i hope ur continue to ur circuitry video upload in you tub. Thanks

@maheshbondepatidar1887 3 жыл бұрын

मै २५ साल से ईलेक्ट्रॉनिक्स विषय मे काम कर रहा हु । ये मैने २००५ मे बनाया था । एल ईडी बल्बवर प्रयोग करतांना। 👍 जय महाकाल

@naeemanjum4537 3 жыл бұрын

Orignl formullla. Power supply very nice. God bless you.. Thank.u. srdarr gi. Naeem Anjam.

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@kshirasagaruckoo2719 3 жыл бұрын

Simple calculations explained nicely. Thanks

@deserticus18 3 жыл бұрын

Please check the aritmethic, the calculated capacitor should be 125 nF not 1.25 uF, besides your are not considering the bridge and 220 ohm resistance voltage drop,about 3-4 volts, the circuit works because of the 5v regulator

@upulpremarathne8992 2 жыл бұрын

Agree with you

@daselectronic1584 2 жыл бұрын

Right

@kokor7409 2 жыл бұрын

I was also calculating and finding the Capacitor value was coming to 0.125Uf or 125nF. I'm glad you also found this mis-calculation.

@shamimahmed4556 Жыл бұрын

You are right the capacitor calculator is wrong. 125 means 1.25 uf. But output works because of low current output and regulator IC7805. Naturally, if the capacitor value is more then current too will be more 👍

@mrcountry Жыл бұрын

Yeah, he miscalculated the capacitor, so I'm can't trust the rest of the video.

@hireswerghodeswar8609 Жыл бұрын

Very very good presentation good explain thanks

@Mr053125 3 жыл бұрын

Good explanation,keep it up,make video's for variable power supply with explanation for different loads.thanks in advance.

@TEKNOISTIX 3 жыл бұрын

Thanks. I will make video on variable supply soon. Keep supporting

@YogeshKumar-im4qw 3 жыл бұрын

धन्यवाद सर वैरी नाईस।

@rodneyharrisfraser.2554 3 жыл бұрын

It's Not a Good Explanation. As The 2 Bias Points ie; Cathode Points Of a Diode With Another One One The Same Line In Series. Will Not Allow Current Flow - Result. You Will Create Back EMF And At The Junction. Where Both Cathodes Meet & Are In Series - Very, Very Serious Heat Damage Will Occur! R H Fraser.

@vijayprasadsingh4926 Жыл бұрын

Thanks for your clear explanation

@BharatBhushan-by3fj 3 жыл бұрын

Good sardar ji vadiya samjhaya

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@dawindersinghdevigarh2304 2 жыл бұрын

Smjhaan da treeka kya baat bhaji👍🙏

@prakashsharma6186 3 жыл бұрын

Your explanation is superb. Very good vidios.

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@Ramesh4519 2 жыл бұрын

Very good teacher God bless you

@jerryx9481 3 жыл бұрын

voltage regulator heat up and burn its self when you connect it in 46 v in higher load. Best regulator voltage is 7 to 12 v DC for (LM7805) Over all best explanation i didn't know any thing about it Thanks

@TEKNOISTIX 3 жыл бұрын

7805can take upto 35v input at 500mA current Here current is very small about 20 mA so it is working

@dineshair6680 Жыл бұрын

Thank you so much sir, l was searching this details last 3week .how many connect this circuit

@mdchandpasha475 2 жыл бұрын

Theroitically and practically excellent sir....

@AYAZAHMED-lo1jh 11 ай бұрын

Great video .very good information sir

@jeetkumarchandjkc7115 Жыл бұрын

Thank you for imparting this knowledge .

@sivaramakrishna1677 Жыл бұрын

Sir, Explanation is amazing 👍 Keep it up

@jayenduvora6804 3 жыл бұрын

very easy and clear superb vedio for understanding nice pl.put the vedio for auto cut power emergency led light with circuit

@TEKNOISTIX 3 жыл бұрын

Thanks

@spraynprey1044 Жыл бұрын

great video and thanks for the English subtitles

@artechengineering 3 жыл бұрын

it was really awesome Videos ......Thank you Brother you video are really helpful ...... i have learn strongly aboud transformer less output

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@bikashbarua.3886 2 жыл бұрын

Excellent solution, thank you best of luck.

@KulwinderSingh-ct4wr Жыл бұрын

Excellent Regards 🙏🏼

@handyman7147 3 жыл бұрын

Thanks for the lesson. very useful and practical. I have a doubt. The calculation started assuming 7V at input of regulator. But after building the circuit the measurement shows 46V. Why ? How do you design for a specific current draw.

@daljeetsinghsokhey605 3 жыл бұрын

I have the same question

@inderdasssetia5243 2 жыл бұрын

Sir told that "7805 Data Sheet" says that it needs minimum 7v to give regu 5v output. As 46v is more than 7v, the circuit has to work.

@handyman7147 2 жыл бұрын

@@inderdasssetia5243 46V is far higher than the rated max input voltage of the regulator. The high drop across it can overheat the device. How do we design it such that the input voltage is not more than 5v from output.

@gadgetsglamour269 3 жыл бұрын

Thanks for Video and Very good explanation. But the English sub title was irritating coz it was obstructing the clear view of bread board design

@TEKNOISTIX 3 жыл бұрын

You can turn off the subtitles by clicking on cc button. These subtitles are for those who can't understand hindi.

@hireswerghodeswar8609 Жыл бұрын

Very very good presentation thanks

@TEKNOISTIX Жыл бұрын

You are most welcome

@aravindakshanm2705 2 жыл бұрын

Totally your calculation is correct. you calculated for 12 ma.current. capacitor value is .125 mfd. But finally you put 1.25 mfd.this is wrong 1.25 mfd is for 120 ma current.

@Salim7531 3 жыл бұрын

Bahut acchs laga vedio. SMPS par ek vedio bane to accha hoga. Iski details hame milegi.

@TEKNOISTIX 3 жыл бұрын

Jaldi hi bana du ga

@Yaman-D-Chhaya 3 жыл бұрын

Sat Sri Akal, Veer bhot vadiya Sikhate Si tussi great Video God bless you and keep the good work going 👍🏻👍🏻🙏🏻🙏🏻❤️

@TEKNOISTIX 3 жыл бұрын

Thanks 😊

@syamasundararao3149 3 жыл бұрын

Very easy to understand explanation for freshers too. Beautiful pictorial, sectional view . Highly professional.

@TEKNOISTIX 3 жыл бұрын

Thanks

@kumarjakke 3 жыл бұрын

It's a perfect and ideal presentation... Your all vedios are decently planned and clear... They are all most useful to the learners and hobbyists and lovers of electronics.👍

@TEKNOISTIX 3 жыл бұрын

Thanks

@bushipakamadhukar13 2 жыл бұрын

Professionally well done sir....

@krishnachaudhury3692 3 жыл бұрын

Bahot khoob sir

@TEKNOISTIX 3 жыл бұрын

Thanks

@RexxSchneider 3 жыл бұрын

Please don't do this. The first problem is that absolute maximum rating for a 7805 is 35V. Your circuit applies 46V to it. Of course, it's possible to get away with this some of the time, but there's no guarantee that you won't simply destroy the 7805. The second problem is that you're assuming 12 mA is flowing through the circuit. Actually, using a 470 ohm resistor with your red LED (which drops around 2 V when conducting) will give a current of around 6.4 mA (i.e. (5V - 2V)/470R). That's one reason why the rectified DC voltage is not the 7V you expected. The third problem is that if anything disrupts the current through the LED, such as one of the wires coming loose), you'll immediately get full mains voltage available to the rectifiers and thence to the filter capacitor, which then needs to be rated for rectified mains, which it clearly is not.

@shamimahmed4556 Жыл бұрын

Yes, he has not shown the DC voltage measurements before feeding to 7805 ic. This worked only for low current and instantly, Don't know if it could stand for 1 hr. But one has to be kept distance and the circuit into a closed wooden box, in fear of capacitor explosion 💥 and is dangerous. 👍

@simhachalampukkalla3712 Жыл бұрын

🙏🙏🙏 thank you very much sir 👍💅💅💅

@rsubram24 23 күн бұрын

I appreciate if you could have given complete components list.

@technikidy 11 ай бұрын

Sirji apki vedio bahut achi aur details mai hai sab same vedios banaye sir hame seekneko milege

@anksadiqi Жыл бұрын

Well done sir je, what an explaination.

@TEKNOISTIX Жыл бұрын

Thanks and welcome

@arunthakare2634 Жыл бұрын

Sir aap jab bhi value calculat kare bade bade aksharo me likhe. sir plz . Sir aapke video bahut acche hote hai.

@TEKNOISTIX Жыл бұрын

Okay g Thanks

@akshathkaup762 3 жыл бұрын

Sir, I had doubt about the protection resistance of the ckt on the neutral wire. Please let me know the formula for it . The video was explained in the simplest manner.I loved it !

@ArifKhan-ux2yj 3 жыл бұрын

i also want to know this

@karunakarshetty51066 2 жыл бұрын

Excellent tutorial and practical experience analise video

@roshithhegde5369 Жыл бұрын

Thank you for the video!

@dilipgavategavate6805 3 жыл бұрын

बहुत बढीया सिखाया

@TEKNOISTIX 3 жыл бұрын

Thanks

@Bharatvarsh000 2 жыл бұрын

Thanks a lot boss... 👍👍👍👍👍👍

@tajinder1974 3 жыл бұрын

Nice explanation. Keep up the good work.👍

@TEKNOISTIX 3 жыл бұрын

Thanks

@prabirdas6648 Жыл бұрын

Very useful description. Thank you.

@navendukumarsingh6204 3 жыл бұрын

You should clearly add that a load must always be on the output, else the circuit will blow. I'm one of your first subscribers.

@Creative_Portal 2 жыл бұрын

Liked your video. But you forgot to add opto isolator which will save the load from voltage spikes. ⚡but its great for beginners... Nice way of teaching. Keep it up..... 💯/ 💯