@@HaseebElectronics Hi, thank you for sharing your knowledge. I have a question. Let's take that scenario where one converter is slightly low, or at very low output for a brief moment and the shotcky diode is protecting current from going backwards through it. What about working converter that now has to provide the extra power to make up for the slow converter, what happens to it in such scenario. Does it get damage?
I have two identical 48vdc 5A power supplies but I needed 10A current. I ordered the proper sized diodes, wired them up as shown and it works perfectly. Best description of how to do this I found. Thank you for sharing this information. Saved me from buying a new power supply.
As other commenters have said, this is the best video Ive seen on smps'. I have searched Google and here for this information and often found myself confused repeatedly. The way you describe things is very clear and I love how you repeat the important steps 2 or 3x. Just hearing the audio alone I would feel confident to do this finally but the video of you hooking up the wires is A++++! Thank you for your videos and all the work you put into them.
Thank you for posting, you're a good man for sharing your knowledge Haseeb. I am going to put this to use in the next week or so with two 29 watt supplies just now ordered from Amazon. I want to be on the safe side of needing a 40+ watt, 12V supply for a 300 watt linear amplifier. This will work perfectly. I tip my hat to you. All the best ...
I am using two 24V 20A power supplies in parallel in almost exactly the same way. I am also monitoring the current from each supply using an ATtiny85 and two ACS712 modules and a relay. If the current difference from the supplies is more than 3A then the relay disconnects the supplies. It works beautifully. But I am interested in using MBR50100. Right now I am using some 30A 100V diodes in parallel, but the MBR50100 looks like a neater solution. Great video as always. Thank you.
@@HaseebElectronics It is for my 3D printer. I need 24V and 27A but first the original meanwell 24V30A supply failed. And then another 24V30A supply failed. Using the two supplies in parallel have worked great. However, thanks to your other fantastic videos I have been able to repair the failed supplies and also upgraded my 24V20A supplies. Your videos have been so helpful to me.
@@mugtabaalhassan802 Hi. Yes they share the current equally within 0.3A. I replaced the potentiometer on both power supplies with multiturn trimpots for very fine adjustment of the voltage. I measure 24.5V and around 13A from each power supply.
Hello! Good video! There may be disbalance between PS1 and PS2 when they have different temperatures for the output wires and terminals. To fix it and sacling without risking thermal damage to PS1 or PS2, try using PS1 as the MASTER and PS2 as the SLAVE. The slave device (devices ) has (have) a current limitation. The current limitation signal comes from the current sensor (resistor or shunt) that measures current through a "positive" MASTER terminal. There are no diodes required on the output.
MBR60100CT IS TO-220 PACKAGE with metallic tab, having 0.1 mA reverse leakage current. this is best for high frequency rectification. it needs insuation paper to install with heatsink MBR60100PT is TO-3P and TO-247AD package style, its reverse leakage current is 1 mA. it is plastic molded
Thanks for video, i have a question, can i use a higher ampere diode than the total amperes i will be using? for example in your video you are using a 50 ampere but if your were needing only 25 can you use the same 50A diode? Also i want to know if the diode should be placed in the negative side output if the polarity i intend to use is center negative.
Great video Haseeb,i have the exact same power supplies and i have paralleled both of them thanks to your're video,my question is,is it possible to increase the voltage from 12v to 14v,and how would i do it?.
Sir, the datasheet for this Schottky rectifier states that base and pin 2 are connected, then the heat sink will be positive too. Do I understand correctly?
yes we can connect in parallel. the voltage must be exactly equal. and must be isolated using rectifier as i demonstrated in this video note that the maximum current will be considered as under we have 12V 6A and 12V 8A (ideally it is to be 8+6=14 ampere) but at 12 ampere, the first power supply (12V 6A) will reach at its maximum limit, and it will trip off. and the total load of 12A will transfer to the 12V 8 amp power supply and that will also turn off
it is bets to use diode to keep isolated both sources. if diode is not used, it will keep charging the battery in parallel. but unbalancing of both sources will cause inter-source current between both power sources
But if one of the power supplies damaged and the two power supplies connected to a load which takes 40 Amps. In this case overloading on one power supply, How to protect that from overload or over current ?
if one power supply is damaged or looses its regulation in that case the second will also disconnect at 25 ampere in this parallel connection both power supplies must have same rating as it industrial power supply which is using current and voltage mode protection, so this power supply will shutdown automatically at reaching at its maximum ratings. i will suggest to check video number 592 & 586 (related to the same power supply)
Hello Haseeb. Seems like the MBR50100 is not readily available here in US. I see no name V50100 as Ebay offerings from China. Is this the same, appears so? I am trying to copy you using (2) 12V 29A supplies expecting an RF amplifier max of 40A draw and hopefully ~ 13V. Can you comment? Or perhaps I could purchase them from you?
Thank you. You have answered a lot of questions right off the bat, but I have one more. I wish to combine the -12v and +12v connections from an old PC PSU to make a +24volt connection. What exactly is the process there? I'm fairly certain it's in series, but I don't know if special steps have to be taken since they are opposing voltages? I only know it can be done, but finding very little info out there about it, other than it being possible. Appreciate your input. :) New fan here.
The video has been very helpful for me. Thank you for this video. Is it possible to make 4 or 5 SMPS(s) parallel in the same way? I'll be glad if you answer this.
best regards and special thanks for your valuable words sure we can integrate in parallel, just we need to take care for equal voltage and same current rating for all parallel power supplies
Hi, thank you for this. I notice the heat sink you have there looks pretty big. Do they generally get warm under normal use or only when there is a back rush of current from another power supply?
Jazakallah khaira ,,,bhai , inhi (12v 25a) do smps ke beech ek diode lagakar series me (24v 25amp ke liye) use kar sakte hain kya ,,, behad shukriya ,,,,,
Nice video, really easy to understand it. How should I do the setup if I have 2 AC power supplies ~230V each having different current (eg. 8A, 10A), so I will have the output 230V AC and current 18A?
I'm a little confused by the Neutral connector... are these AC power supplies? How would all of this change if we were only working with positive and ground?
i want to use 4 adjustable converters of them 2 solar panels on every one in total 8pvs on 4 converters . constant 52v output and try on 48v inverter!! most of them work as NO pure sine pwm pulse type...!!! if i use 4 . will noise be less harmfulll ? i dont want to use big battery yet !!!!
Great sharing
thanks a lot
If different amperes, how? Still can?
Wow. Nice idea
@@HaseebElectronics
Hi, thank you for sharing your knowledge.
I have a question. Let's take that scenario where one converter is slightly low, or at very low output for a brief moment and the shotcky diode is protecting current from going backwards through it.
What about working converter that now has to provide the extra power to make up for the slow converter, what happens to it in such scenario. Does it get damage?
I have two identical 48vdc 5A power supplies but I needed 10A current. I ordered the proper sized diodes, wired them up as shown and it works perfectly. Best description of how to do this I found. Thank you for sharing this information. Saved me from buying a new power supply.
As other commenters have said, this is the best video Ive seen on smps'. I have searched Google and here for this information and often found myself confused repeatedly. The way you describe things is very clear and I love how you repeat the important steps 2 or 3x. Just hearing the audio alone I would feel confident to do this finally but the video of you hooking up the wires is A++++! Thank you for your videos and all the work you put into them.
Thank you for posting, you're a good man for sharing your knowledge Haseeb. I am going to put this to use in the next week or so with two 29 watt supplies just now ordered from Amazon. I want to be on the safe side of needing a 40+ watt, 12V supply for a 300 watt linear amplifier. This will work perfectly. I tip my hat to you. All the best ...
You are the best teacher....
i am thankful dear
Insha Allah behtareen tarkeeb!
thanks a lot
I am using two 24V 20A power supplies in parallel in almost exactly the same way. I am also monitoring the current from each supply using an ATtiny85 and two ACS712 modules and a relay. If the current difference from the supplies is more than 3A then the relay disconnects the supplies. It works beautifully. But I am interested in using MBR50100. Right now I am using some 30A 100V diodes in parallel, but the MBR50100 looks like a neater solution.
Great video as always. Thank you.
wow that is great
you can also use MBR40100 or MBR50100
wish you best of luck
@@HaseebElectronics It is for my 3D printer. I need 24V and 27A but first the original meanwell 24V30A supply failed. And then another 24V30A supply failed. Using the two supplies in parallel have worked great.
However, thanks to your other fantastic videos I have been able to repair the failed supplies and also upgraded my 24V20A supplies.
Your videos have been so helpful to me.
Hi, from your experiment what was the Readings of the two ACS712, did they shares the load equally?
@@mugtabaalhassan802 Hi. Yes they share the current equally within 0.3A. I replaced the potentiometer on both power supplies with multiturn trimpots for very fine adjustment of the voltage.
I measure 24.5V and around 13A from each power supply.
@ TYGAMatt Awesome
Explanation was very clear. Addressed all my concerns.
Thanks,
Informative video. I have never seen such proper way to connect two supply in any vedeo. Thank u so much God bless you.
You are most welcome
You're explaining skill nice.
❤❤thank you sir good teaching
Excellent video dear friend!
Thank you very much dear friend
very help full sir thank you so much for giving such a good information.im watching every single videos
it is my pleasure
Harika bilğilerini bizimle paylaştığından dolayı minnettarım . Büyük insansın.
Allah razı olsun canım kardeşim
Walkum aslam bhai mashaAllah great video
thanks a lot
Extremely helpful I appreciate it very much this is going to assist me in building my 60 amp power supply thank you😊, 👍
If we using mur 3060pt fir bhi chal jayega na?
yes it will work
What diod your are using?
great engineer
thanks a lot dear brother
Excellent explain. Thank you sir.
You are welcome
Thanks Haseeb
best regards and special thanks
Big thumbs up superb informative vedio adorable work thanks for sharing
i am thankful
Thank you very much sir 🙏 🙏 🙏
Most welcome
Great explanation!👍
it is my pleasure
I have 12v 30.3amps 400watt 3nos i wanted to connecting all three in parallel. Can you suggest the suitable MBR for it?
are there diodes that don't require heatsink? or do they all heat up
Great bro🌷Mashallaha nice
best regards and special thanks
Yes a very good solution,,, but the next question is, can you connect in series to give 24V 25A ???
yes please check video number 598
Detailed information, thank you...
You are welcome
Question... in a hypothetical setup of 10 PSUs with a 25a rating., do you need a 25a diode on each PSU or a 250a diode on each PSU?
it needs 40 ampere (in case 25 ampere power supply) diode for each power supply
Hello! Good video! There may be disbalance between PS1 and PS2 when they have different temperatures for the output wires and terminals. To fix it and sacling without risking thermal damage to PS1 or PS2, try using PS1 as the MASTER and PS2 as the SLAVE. The slave device (devices ) has (have) a current limitation. The current limitation signal comes from the current sensor (resistor or shunt) that measures current through a "positive" MASTER terminal. There are no diodes required on the output.
HI, do you have any videos on the Master Slave topic?
Thanks. Do you have a link to a circuit?
@@agsensenz9464 Hello! The schematic of master/slave is here: drive.google.com/file/d/1o_SaJhyyn4hOEYTmVQ6nQIFpJ3kE7fI8/view?usp=sharing
Haseeb sahab,,
Mujhey 12 volt 80 ampere ki do power supply ko parallel use karna hai,,uske liye diode kaunsi use karni hai,,?
Can I use this method to connect a 5v 20 amp power supply in parallel with a 12v 10 amp power supply.
Can this be done with different POwer supplies? e.g. 1pc 30A and 10A
Mashallah very informative video
Many many thanks
Can we use the same principle to connect 3x 12v 40amp power supplies?
Yes it is doable
@@HaseebElectronics should i use MBR 120/100?
Great video.
I wanted to buy MBR 60100 for my 2 30A 5v supplies, but there are two kinds of MBRs - CT and PT what's the difference between theese two?
MBR60100CT IS TO-220 PACKAGE with metallic tab, having 0.1 mA reverse leakage current. this is best for high frequency rectification. it needs insuation paper to install with heatsink
MBR60100PT is TO-3P and TO-247AD package style, its reverse leakage current is 1 mA. it is plastic molded
www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/MBR60100PT/7377521
www.digikey.com/en/products/detail/smc-diode-solutions/MBR60100CT/6022170
@@HaseebElectronics thanks!!! 🙂
Good job 👍👋
thanks a lot dear friend
Is it necessary to use MBR?
MBR diodes have low forward voltage that causes to dissipate less power with compare to a simple rectifier
Thank you so much
You're most welcome
useful & informative sir👌
Thanks and welcome
Hi there,
To conect two PS parallel 24v 12.5amp 300w which Mosfet I need to use please?
18N50 or 20C60 22N50
Thanks for video, i have a question, can i use a higher ampere diode than the total amperes i will be using? for example in your video you are using a 50 ampere but if your were needing only 25 can you use the same 50A diode? Also i want to know if the diode should be placed in the negative side output if the polarity i intend to use is center negative.
Diode must be 1.5 times to the system current
For example system current is 20 ampere
Diode must be selected 30 Amp or above
Can it be placed on the negative wires? Is polarity relevant?
Thank you
most welcome
Great video Haseeb,i have the exact same power supplies and i have paralleled both of them thanks to your're video,my question is,is it possible to increase the voltage from 12v to 14v,and how would i do it?.
best regards
please check video number 283. it may help to adjust the output voltage
@@HaseebElectronics Thank you,i will watch the video.
Very good and useful information sir thanks for sharing this knowledge to us
thanks a lot
Hello...so what rectifier would I use for 2x50A power supplies...that I wish to connect in parallel
Can i use 80cpq150 instead of MBR 50100
Sir, the datasheet for this Schottky rectifier states that base and pin 2 are connected, then the heat sink will be positive too. Do I understand correctly?
Hi I have two 40amp power supply what type of diodes should I get to connect them together for a higher amperage
Great information....thank you!
thanks a lot dear friend
Is it possible to parallel the amperage difference sir?
yes we can connect in parallel.
the voltage must be exactly equal. and must be isolated using rectifier as i demonstrated in this video
note that
the maximum current will be considered as under
we have 12V 6A and 12V 8A (ideally it is to be 8+6=14 ampere)
but
at 12 ampere, the first power supply (12V 6A) will reach at its maximum limit, and it will trip off. and the total load of 12A will transfer to the 12V 8 amp power supply
and that will also turn off
Hello! I have two PS of 24V 150W. What diodes should I use? Thanks!
Thumbs up done nice pressentation
best regards
How about connecting three 30 amp power supplies in parallel or even four?
Can you replace the manual POTs on these devices and control them with a Micro?
IRFP260N will work too?
yes that is good
or you may use
18N50 or 20C60 22N50
Hey bro, thanks
Good 👍 job
best regards bhai
can i connect two 12 volt devices in one single 12 volt output power supply?
what about i paralel with battery and PS the same volt do we still need dioda ?
it is bets to use diode to keep isolated both sources.
if diode is not used, it will keep charging the battery in parallel. but unbalancing of both sources will cause inter-source current between both power sources
@@HaseebElectronics reference this video what will happen if we used different volt ps ?
If MBR50100 is not available then which diode we can use. Can u help me with this.
But if one of the power supplies damaged and the two power supplies connected to a load which takes 40 Amps. In this case overloading on one power supply, How to protect that from overload or over current ?
if one power supply is damaged or looses its regulation
in that case the second will also disconnect at 25 ampere
in this parallel connection both power supplies must have same rating
as it industrial power supply which is using current and voltage mode protection, so this power supply will shutdown automatically at reaching at its maximum ratings.
i will suggest to check video number 592 & 586 (related to the same power supply)
@@HaseebElectronics that's answered my question before even writing it.
Thank you brother 🙏.
Love the video
thanks a lot
Hello Haseeb. Seems like the MBR50100 is not readily available here in US. I see no name V50100 as Ebay offerings from China. Is this the same, appears so? I am trying to copy you using (2) 12V 29A supplies expecting an RF amplifier max of 40A draw and hopefully ~ 13V. Can you comment? Or perhaps I could purchase them from you?
Can you do this with the normal wall adapters? I have 2 12v1.5a and need 3a for my diy project
excellent analysis.thanks
You are welcome!
How can I set this up to run Linear Amp.Those wire would be too small.
Thank you. You have answered a lot of questions right off the bat, but I have one more. I wish to combine the -12v and +12v connections from an old PC PSU to make a +24volt connection. What exactly is the process there? I'm fairly certain it's in series, but I don't know if special steps have to be taken since they are opposing voltages? I only know it can be done, but finding very little info out there about it, other than it being possible. Appreciate your input. :) New fan here.
Can we connect two rectifier in series for getting high voltage
Thank you for sharing your knowledge.. Question? does these method also applies to parallel connect a lithium Ion battery pack with Individual BMS?
best regards
i never tried it, so that cannot give any opinion on your question. the BMS involvement is slightly question mark........
Thank you very much sir
Most welcome
I need 12 volt at least 80 amp mbr but can't find anywhere should I parallel two 40 amp mbrs? Is it safe what do u recommend ??
yes you can connect in parallel
for 80 ampere
use 3 pieces of MBR40100 in parallel
Thanks
The video has been very helpful for me. Thank you for this video. Is it possible to make 4 or 5 SMPS(s) parallel in the same way? I'll be glad if you answer this.
best regards and special thanks for your valuable words
sure we can integrate in parallel, just we need to take care for equal voltage and same current rating for all parallel power supplies
Thanks. I will try it and will send you the results. Hope you will help me. God bless you. Keep helping brothers. Thanks once again.
Great post, I am trying to connecto 2 DC PSU in parallel. 5v, 12v and -12v outputs. Do I need MBR or what other alternative I need? Thanks in advance!
Very good information
best regards and special thanks
what if when 5volt dc two power supply parallel connection with different and same amps?
Excellent performance
thanks a lot
Perfect, thanks for your effort.
You are welcome!
Wow great info sir 👍
most welcome
Jazak Allah Khair
thanks a lot
I want to use two 12 volt power supplies to create a 12 volt 240 amp power supply. Do they make 240 amp 100 volt short rectifiers?
Hi, thank you for this. I notice the heat sink you have there looks pretty big. Do they generally get warm under normal use or only when there is a back rush of current from another power supply?
Thanks for your video, I build it with 2x 12v 30a each for car amplifier to home, I should use 2 mbr60100 correct or something else?
Good sharing bai
Many many thanks dear sister
Why do you need 50 amp diode if voltage supply can only deliver 25A?
Jazakallah khaira ,,,bhai , inhi (12v 25a) do smps ke beech ek diode lagakar series me (24v 25amp ke liye) use kar sakte hain kya ,,, behad shukriya ,,,,,
please check video number 598 for series connection
جزاك الله خيرا
Nice video, really easy to understand it. How should I do the setup if I have 2 AC power supplies ~230V each having different current (eg. 8A, 10A), so I will have the output 230V AC and current 18A?
sir where i got that mbr 50100 i didn't got it in my local market , i am from Pune
love form bass lovers vrd
I'm a little confused by the Neutral connector... are these AC power supplies? How would all of this change if we were only working with positive and ground?
10:55 Alhamdolillah full watching the video 🏆🇵🇰
thanks a lot
Thankyou sir . Please tell us about series connection .
please check video number 598 for series connection
Can i connect smps parallel without components???
I have 6 30 amp modules I'd like to wire in parallel what value isolators would I need? Please
lk nice sharing
Thank you so much
It was a very useful video. Can I use a diode other than TO-247AD?
Yes, but make sure it is schottky and the combined amp/voltage is covered, and mount them on a heat sink.
What mbr should I use for 5v input and up to 15amp backfeed blocking
MBR3520
MBR35100
MBR3530
,MBR3535
MBR3545
Is it same for 24v 6.2amp
Salam alaikum.
Awesome video. Thanks for sharing.
Could I accomplishe the same task with only 1 Schottky diode?
it is much batter to use 2 diodes to protect the sources from reverse current flow
i want to use 4 adjustable converters of them 2 solar panels on every one in total 8pvs on 4 converters . constant 52v output and try on 48v inverter!! most of them work as NO pure sine pwm pulse type...!!! if i use 4 . will noise be less harmfulll ? i dont want to use big battery yet !!!!