Adjust meanwell voltage

Batteries, Chargers, and Battery Management Systems.
cwah   10 GW

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Re: Adjust meanwell voltage

Post by cwah » Mar 14 2015 9:37am

cal3thousand wrote:Why don't you get a Mean Well CLG or HLG series? They are CC/CV led supplies and are quite suitable for charging lithium packs. I used a CLG, but now have a HLG-240-48A.

It's IP65 water resistant, adjustable voltage and current (within some range), and puts out about 240W. All you have to do is solder an IEC cable for AC power and then whatever DC connectors your battery takes.
Can I just put in parallel the AC cable and in serie the output cable?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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fechter   100 GW

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Re: Adjust meanwell voltage

Post by fechter » Mar 14 2015 11:12am

cwah wrote:
Can I just put in parallel the AC cable and in serie the output cable?
Yes, that will work.
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Re: Adjust meanwell voltage

Post by dnmun » Mar 14 2015 11:35am

why continue this if the battery is already stolen? if you do use multiple CC led drivers like this, then make sure the battery has a BMS that will shut off charging when the first channel hits the HVC.

diggler   1 kW

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Re: Adjust meanwell voltage

Post by diggler » Mar 14 2015 8:05pm

I think he's not considering the original mw he posted. There cc efect has already been talked about. He has been suggested to use the mw with cc AND cv. They will NOT over charge. I've actually been looking at these cc cv led mw for a while. I'm glad there being talked about here. I was actually going to suggest a bmscharger. They will do any v u want. Just pick ur watt and v and cheap!
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diggler   1 kW

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Re: Adjust meanwell voltage

Post by diggler » Mar 14 2015 8:07pm

[youtube][/youtube]I think he's not considering the original mw he posted. There cc efect has already been talked about. He has been suggested to use the mw with cc AND cv. They will NOT over charge. I've actually been looking at these cc cv led mw for a while. I'm glad there being talked about here. I was actually going to suggest a bmscharger. They will do any v u want. Just pick ur watt and v and cheap!
GAS ELECTRIC FAT BIKE 49CC/3000W MXUS V1 18s Lipo 18 Fet BUILDING...http://endless-sphere.com/forums/viewto ... =6&t=65638
600W CAPACITIVE SPOT WELDER BUILDING... http://endless-sphere.com/forums/viewto ... =2&t=66466
HOLANDIA BEACH CRUSER 1000W 9C ?TURN REBUILDING... no thread yet.
Next project will be 18" Iron Horse hard tail mid drive

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NeilP   10 GW

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Re: Adjust meanwell voltage

Post by NeilP » Mar 15 2015 4:18am

Well since it is constant current, any reasoonable voltage PSU will do. you could get a couple of old PC PSU's and isloated the outputs on them, and sereis them, with this, using this as the adjuster for fine voltage and CC limiting.

Manhy on line turorials showing how to modify PC supplies to isolate the output.

But yes, it will be big and bulky.
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cwah   10 GW

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Re: Adjust meanwell voltage

Post by cwah » Mar 15 2015 3:31pm

Can I put in serie 2 of these meanwell?
http://uk.mouser.com/ProductDetail/Mean ... QFAyI6o%3d

Parallel the input and serie the output? I suppose they are isolated so no common ground issue?

I'd end up with an 1.5kg, 120W power supply. Not really great weight wise and a bit bulky... but still better than these DC-DC converter I think
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

diggler   1 kW

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Re: Adjust meanwell voltage

Post by diggler » Mar 15 2015 4:52pm

That is a cc only ps. I thought that was already talked about. :roll:
Why don't you just get one of these. https://bmsbattery.com/ebike-charger-ev ... arger.html
It has an active PFC. You can tell them to set the voltage to what ever you want. Then adjust if needed latter. It's 25 bucks with a two year warranty. It will not over charge your battery (it a cc/cv charger), and it's even more watts than you want. You can always turn down the amps if you really wanted to. Though there is now way your going to get more cycles charging with 50w over 180w, and I don't know why you would want to. O and portable. Seems like it fits all your criteria. And is about as much as those drok's you say you buy every couple months cause you say they don't stay accurate. For 25 bucks what do you got to loose?
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Next project will be 18" Iron Horse hard tail mid drive

dnmun   100 GW

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Re: Adjust meanwell voltage

Post by dnmun » Mar 15 2015 5:22pm

this charger is much better and the fan is quiet too. it has the IGBTs for switching transistors so it can pump high currents for a long time without problem.

https://bmsbattery.com/ebike-charger-ev ... arger.html

too bad they do not use surface freight to ship heavy stuff though.
Last edited by dnmun on Mar 15 2015 5:23pm, edited 1 time in total.

cwah   10 GW

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Re: Adjust meanwell voltage

Post by cwah » Mar 15 2015 5:23pm

the main reason is that I need silent power supply. I already have the bmsbattery one at home.
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

diggler   1 kW

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Re: Adjust meanwell voltage

Post by diggler » Mar 16 2015 1:56am

O okay well then yah two meanwells in series to make the charging voltage you want.
I first looked at 60w one that said they were cc/cv and had adjustable current and voltage but when I read there description it didn't say the voltage was adjustable just the current.
So I went down to 65w and the first one said it has an adjustable pot inside for current and voltage. Though at this power level you will probably only need to adjust the voltage.
http://www.powergatellc.com/mean-well-H ... upply.html
I haven't looked on meanwells sight yet. If you go to the actual meanwell sight they will tell you the min and max voltage and current adjustability.
five year warranty too.
GAS ELECTRIC FAT BIKE 49CC/3000W MXUS V1 18s Lipo 18 Fet BUILDING...http://endless-sphere.com/forums/viewto ... =6&t=65638
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diggler   1 kW

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Re: Adjust meanwell voltage

Post by diggler » Mar 16 2015 2:11am

Just looked on the meanwell sight.
HGV-65-42 has a voltage adjustable from 38-46v and a current adjustable from .93-1.55amps. and the
HGV-65-48 has a voltage adjustable from 43-53v and a current adjustable from .81-1.36amps.
So since you want 80-84v the HGV-65-42 looks perfect for your needs.
Yah two are going to be 100 bucks but there bullet proof, silent and five year warranty. :wink:
GAS ELECTRIC FAT BIKE 49CC/3000W MXUS V1 18s Lipo 18 Fet BUILDING...http://endless-sphere.com/forums/viewto ... =6&t=65638
600W CAPACITIVE SPOT WELDER BUILDING... http://endless-sphere.com/forums/viewto ... =2&t=66466
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NeilP   10 GW

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Re: Adjust meanwell voltage

Post by NeilP » Mar 16 2015 3:18am

Make sure you order the -A model.
That is the only version that is voltage adjustable

http://www.meanwell.com/webapp/product/ ... rod=HVG-65
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Re: Adjust meanwell voltage

Post by Hillhater » Mar 16 2015 6:11am

Last week I surfed across a meanwell 400W cc/cv power supply with an adjustable output of 0-80 volts on EBay !!
But, I am unable to find it again now ! :evil: :oops:
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MrDude_1   100 kW

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Re: Adjust meanwell voltage

Post by MrDude_1 » Mar 16 2015 8:40am

Hillhater wrote:Last week I surfed across a meanwell 400W cc/cv power supply with an adjustable output of 0-80 volts on EBay !!
But, I am unable to find it again now ! :evil: :oops:
If its the one I bought last week... consider yourself lucky.
I bought a second Meanwell SP-500-27 to put in series with my current meanwell for when I swap to 66v.
It was DOA... It didnt have full voltage range, and any load, no matter how small, would cut it off. The guy gave me a full refund, including shipping and I didnt have to send it back... so I took the case off.. looks like it was "repaired" by someone previously.

As far as I know, there are no 0-80v meanwells, but there are several models with ranges that mostly overlap.. so just get what you need.. or modify one from one range down to another.
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Re: Adjust meanwell voltage

Post by Hillhater » Mar 16 2015 5:05pm

There is certainly plenty of rubbish out there...especially on EBay.
That 0-80v unit could well have been a clone.
But it is disappointing to hear that spending up for a "brand name" like MW , is no guarantee of reliability.
I have had MW /clone psu's with adj voltage 0-30v and CC/CV that work well for as little as $30,
....but on line buying is always a gamble !
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cwah   10 GW

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Re: Adjust meanwell voltage

Post by cwah » Mar 16 2015 5:56pm

Isn't 5 years warranty something we can trust with brands like meanwell? Because if you try to apply the same thing with chinese seller it's dead from start.

I suppose paralleling the input and serie the output shouldn't void the warranty?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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fechter   100 GW

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Re: Adjust meanwell voltage

Post by fechter » Mar 16 2015 9:42pm

Meanwell isn't much better than many other brands. I've had them die for no apparent reason.

Having a lot of tech information makes repair possible at least. They're cheap enough to just recycle when they go too.
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dnmun   100 GW

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Re: Adjust meanwell voltage

Post by dnmun » Mar 16 2015 10:25pm

chargers and power supplies can be repaired without much fuss unless you don't do stuff like that.

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MrDude_1   100 kW

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Re: Adjust meanwell voltage

Post by MrDude_1 » Mar 17 2015 7:37am

dnmun wrote:chargers and power supplies can be repaired without much fuss unless you don't do stuff like that.
Yeah, while I am not going to mess with it do to time constraints (I have enough projects that I WANT to do), I must admit this is especially easy to work on. Everything is through hole, large spacing around parts.. overall I like the design.
I think the SP-500 series is really cool, the board is literally broken into two sections, one on top of the other. Top section is AC, and rectifier, bottom section is the DC switching. simple, but effective.
I should probably sell my SP-500-27. Someone here could fix it and use it. Im just going to have it sit on the shelf...
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