Thanks, It works! My values: I wanted 14.4v for vehicle programming, For OVP board, I used 2 x 1/4w 6k resistors in series to get 12k. For the voltage output pot resistor, I used a 10k resistor instead of the 5.6k resistor. This gave me a voltage variation of 12.8 to above 16v! I was surprised to see it hit 16.4v briefly, but thankfully it didnt damage the outout capacitors which are only rated to 16v. After tweaking the 10k pot down the output is steady at 14.4v. I'll make a short video of my mod if anyones interested. Thanks for the video!
The 3.3k and 5.1k are working like a champ with the supply set to 14.9v. Nice to see how to mod these as the DPS-1200SBA supplies are getting harder to find (cheap) and these are plentiful.
Nice video! I have had it on my to-do list to get some of these 1200W units and make a design with them. I have mostly used the 750W models and they work really well - even with the outputs connected in series. 👍👍👍 - The Innovati0n Lab.
By far the BEST video for moding the HP PL11! Thanks for explaining what each resistor is doing and how each one will raise or lower the voltage. Now I have a power supply that can give me 60A to test car audio amplifiers I repair. I’ll be buying a second one to sync so I will have over 100A for testing big 2k amps. Thank you for your time making this for everyone. I just subscribed too!
Thank you for this video, I needed a power supply for maintaining vehicle voltage above 13.5v with the ignition off. Used the 5.1k and 5.6k and was able to get it dialed in to 14.46v. full clockwise was below 14, and full counterclockwise was at least 15. I do not have a steady hand at all, so soldering was tricky for me, but I covered the area around the solder points with kapton tape and it worked great.
Wonder what a good resistor combo for ham radio use would be with a target of 14.5V and having OVP kick in around 15.5V? My radio says the following. That way running at 14ish I wont have to worry about V drop on long transmits and don't have to worry if something goes wrong and the PS over volts. "The FT-857D radio requires 13.8 v +- 15% or 2V for a nominal range of 11.8 to 15.8V"
hmmm if you was to use say 4 of these together , using the voltage share pads, how could one hook up say a variable pot of 5k or 7 k outside to adjust overal voltage? i know the crowbar wont float with this kinda set up but would you be able to do this?
Excellent video. Im no pro . Just a hobbyists. So im doing 4 of these . I need to know about the load sharing .. If you can ,would you do a short on the load share function. I want to link 4 of these.
Sir, do you have some advice on how I can find the volt share pin so I can probe around and find it myself on my flex slot PSU, it would be super appreciated if you would share how you identified it! And do those pins get connected in parallel between units? Finding official documentation on these PSUs is impossible. I bought the DPS-1400BB flex slot PSU and figured out how to turn it on and also increase the output voltage before there was any online guide whatsoever, so I uploaded a vid on how to do it on my channel. This vid will certainly help me to disable the OVP on my unit so I can get over 14.5v and Ill make a new video on that. 👍 Thanks buddy!
Nice video, chapeau for your self- building all these other projects! Do you have info about the HP 1400W 12V, 117 amp ps? It looks like, but... thanks in advance!
Hi, this is a very good method for such supply as I have applied same method but supply is being shut down on applying a little load from out put so plz must guide for fix it
Thanks, It works! My values: I wanted 14.4v for vehicle programming, For OVP board, I used 2 x 1/4w 6k resistors in series to get 12k. For the voltage output pot resistor, I used a 10k resistor instead of the 5.6k resistor. This gave me a voltage variation of 12.8 to above 16v! I was surprised to see it hit 16.4v briefly, but thankfully it didnt damage the outout capacitors which are only rated to 16v. After tweaking the 10k pot down the output is steady at 14.4v. I'll make a short video of my mod if anyones interested. Thanks for the video!
Did you use both 6K resistors in the place where he puts one 3.3k?
@@FredyArgNegative. It's between the 2 transistors on the OVP board I put 12k, instead of the 5.1k he uses.
The 3.3k and 5.1k are working like a champ with the supply set to 14.9v. Nice to see how to mod these as the DPS-1200SBA supplies are getting harder to find (cheap) and these are plentiful.
Nice video!
I have had it on my to-do list to get some of these 1200W units and make a design with them. I have mostly used the 750W models and they work really well - even with the outputs connected in series.
👍👍👍
- The Innovati0n Lab.
By far the BEST video for moding the HP PL11! Thanks for explaining what each resistor is doing and how each one will raise or lower the voltage. Now I have a power supply that can give me 60A to test car audio amplifiers I repair. I’ll be buying a second one to sync so I will have over 100A for testing big 2k amps. Thank you for your time making this for everyone. I just subscribed too!
Thank you for this video, I needed a power supply for maintaining vehicle voltage above 13.5v with the ignition off. Used the 5.1k and 5.6k and was able to get it dialed in to 14.46v. full clockwise was below 14, and full counterclockwise was at least 15. I do not have a steady hand at all, so soldering was tricky for me, but I covered the area around the solder points with kapton tape and it worked great.
Very usefull video, thank you!
These HP supplies appear to be the Cats Meow for our hobby.
Спасибо большое за труд.информация будет очень полезной.👍
Wonder what a good resistor combo for ham radio use would be with a target of 14.5V and having OVP kick in around 15.5V? My radio says the following. That way running at 14ish I wont have to worry about V drop on long transmits and don't have to worry if something goes wrong and the PS over volts.
"The FT-857D radio requires 13.8 v +- 15% or 2V for a nominal range of 11.8 to 15.8V"
hmmm if you was to use say 4 of these together , using the voltage share pads, how could one hook up say a variable pot of 5k or 7 k outside to adjust overal voltage? i know the crowbar wont float with this kinda set up but would you be able to do this?
Hi! Do you know how we can limit the maximum output current?
Why didn’t you just put stabilised voltage (3.3v or so) into ovp line? It should turn off any voltage protection.
Awsome thanks for the info, if you do the hstns PL30 please post it lol
What does this voltage mod do to the efficiency of the power supply?
Any modifications for the hstns-pl30?
thanks nate..now I can finally use the stacks of them I have hahaha
hp model hstns-pl28, is there a way to fix this? Doesn't let the ovp system
At what voltage does the OVP shut the PSU down?
Tks for the video I am fixing to do one its a PD 30. Do you know if i can do that one like you did this one. Probably gonna be for hho project. Thks.
Would the pl33 be the same ?
Hi. By any chance, do you have a user guide for modding HSTNS-PL14?
Getting RFI out of mine. any ideas?
Excellent video.
Im no pro .
Just a hobbyists.
So im doing 4 of these .
I need to know about the load sharing ..
If you can ,would you do a short on the load share function.
I want to link 4 of these.
Pin 34 is load share. Just solder a wire on pin 34 of each supply, then tie them together.
Sir, do you have some advice on how I can find the volt share pin so I can probe around and find it myself on my flex slot PSU, it would be super appreciated if you would share how you identified it! And do those pins get connected in parallel between units?
Finding official documentation on these PSUs is impossible. I bought the DPS-1400BB flex slot PSU and figured out how to turn it on and also increase the output voltage before there was any online guide whatsoever, so I uploaded a vid on how to do it on my channel. This vid will certainly help me to disable the OVP on my unit so I can get over 14.5v and Ill make a new video on that. 👍 Thanks buddy!
C.S. Is pin 34.
Best kept secret for years.
Hi good video for this model of server power supply appreciate
Hi good video for this model of server power supply appreciate
Nice video, chapeau for your self- building all these other projects! Do you have info about the HP 1400W 12V, 117 amp ps? It looks like, but... thanks in advance!
how many apms max bro 14.3v?? thank U
@@nhatnamhoangnhatnam1957 1400w / 14.3v = ~98 amps
The DPS-1400BB can do 1400w, so 100A @ 14v, and can output 14v before the ovp kicks in. I have a video on how to turn them on and stuff
Really nice video good
Explanation. Do you ever try to mod the Hp c 7000 blade?
Yes. They are controlled by the server. Can’t hack them like others
I saw a guy on here add some gadget to it and got 13.8 volts but he is not sharing it at all.
Can you build a 16 pill box base unit??? With those in 110...it'll be a repill repair.
You could build it but wouldn’t work on 110v. You’d have to use 220v
PL28 is this same mode?
if i upgrade the filter caps with an higher voltage is it possible to make this powersupply output 19v?
No. The chip that does the regulation, is only rated for 18v max. It literally will shut off almost instantly
Hello
Anybody know, is it possible to mod hstns-pf43?
Hi, this is a very good method for such supply as I have applied same method but supply is being shut down on applying a little load from out put so plz must guide for fix it
The first person i saw doing this was bbi
How about a DPS-1200FB-1A?
PD19? Good luck. I broke 3 of those mofos trying to mod them. PL11 appears to be much easier
1 watt resistors ok?
Yes. Might just be a little big to fit into the power supply.
Yeah 1 watt is probably twice or three times what it will probably see