RunRyder RC
WATCH
 1 page 1449 views POST REPLY
HomeRC & PowerAircraftHelicopter
e-
Electric Battery-Charger-pSupply
› Powerlab 6 charging station
03-13-2014 04:26 AM  4 years agoPost 1
Noble 373

rrNovice

Destrehan La

My Posts: All  Forum  Topic

Just finished my new charging station today. What do you guys think?

PM  EMAIL  GALLERY  Attn:RR  Quote
03-13-2014 03:18 PM  4 years agoPost 2
Twrecks600

rrKey Veteran

Round Rock, Texas

My Posts: All  Forum  Topic

Nice and clean. I like it!!

Team me

PM  EMAIL  GALLERY  Attn:RR  Quote
03-13-2014 06:48 PM  4 years agoPost 3
Noble 373

rrNovice

Destrehan La

My Posts: All  Forum  Topic

Thanks bud!

PM  EMAIL  GALLERY  Attn:RR  Quote
03-14-2014 02:04 AM  4 years agoPost 4
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

Looks good. Nice supply. The thing I like about the Meanwells is that you can turn up the voltage to clear the buck boost transitions.

Revolectrix Beta Team

PM  EMAIL  GALLERY  Attn:RR  Quote
03-14-2014 02:24 AM  4 years agoPost 5
Retired2011

rrElite Veteran

Lee's Summit, MO

My Posts: All  Forum  Topic

How much voltage would you need to clear the transitions?

PM  EMAIL  GALLERY  Attn:RR  Quote
03-14-2014 04:33 AM  4 years agoPost 6
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

"Loaded voltage" above 26.5v should do it. To see the loaded voltage on the Powerlabs, use the software and graph the supply voltage. The graph will display the loaded and unloaded. You can't use voltage on the console as its closer to RMS.

Revolectrix Beta Team

PM  EMAIL  GALLERY  Attn:RR  Quote
11-16-2014 06:54 AM  3 years agoPost 7
rcflyerheli

rrKey Veteran

Granbury, TX USA

My Posts: All  Forum  Topic

The thing I like about the Meanwells is that you can turn up the voltage to clear the buck boost transitions.
What's this buck boost transition? I am putting together two DPS 1200s in series to get 24.8v. I am also already running 24v on a Chargery setup, and a pre purchased assembled set of the DPS 1200s in series.

I can read directions, and solder pretty well, but I am a novice at EE. So what do they do, and how do they affect my chargers?

Thanks.

Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

PM  EMAIL  GALLERY  Attn:RR  Quote
11-16-2014 02:05 PM  3 years agoPost 8
Ace Dude

rrProfessor

USA

My Posts: All  Forum  Topic

Just finished my new charging station today. What do you guys think?
Nice job! The Mean Well power supply will serve you well.

  

PM  EMAIL  GALLERY  Attn:RR  Quote
11-17-2014 03:18 AM  3 years agoPost 9
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

What's this buck boost transition?
This occurs when the charger's input voltage is close to the pack voltage. The charger's DC-DC converter toggles between boost mode and buck mode. This can cause the charge current to bounce around until the pack voltage raises high enough so the DC-DC converter can remain in the boost mode.

If you are charging 6s packs, slightly lower the voltage on each supply to get total of about 23v. If you are using a Powerlab, the charge current log will clearly show if are still in the transition range.

Revolectrix Beta Team

PM  EMAIL  GALLERY  Attn:RR  Quote
11-17-2014 04:59 AM  3 years agoPost 10
rcflyerheli

rrKey Veteran

Granbury, TX USA

My Posts: All  Forum  Topic

Does it hurt anything?

Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

PM  EMAIL  GALLERY  Attn:RR  Quote
11-17-2014 10:36 PM  3 years agoPost 11
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

Does it hurt anything?
All chargers do this. I know from discussions with the engineer the Powerlabs are designed to handle this without any issue.

But where it can become an issue is when running from a generator. The resulting pulsing can be heard as the generator struggling to cope with the changing load. In some cases this can cause unstable AC at the power supplies which may result in the supply struggling to deliver stable DC. The Powerlab monitors the stability of the DC source and will trigger a safety code if the supply voltage becomes too unstable to operate safety.

Revolectrix Beta Team

PM  EMAIL  GALLERY  Attn:RR  Quote
11-17-2014 10:50 PM  3 years agoPost 12
rcflyerheli

rrKey Veteran

Granbury, TX USA

My Posts: All  Forum  Topic

Thanks. How will this affect an inverter generator?

Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

PM  EMAIL  GALLERY  Attn:RR  Quote
11-17-2014 11:38 PM  3 years agoPost 13
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

Its a pulsing load. Though the generator will sound awful, I'm not sure its actually doing any harm. But I don't know for certain. It may be depend on the quality of the generator.

Revolectrix Beta Team

PM  EMAIL  GALLERY  Attn:RR  Quote
11-18-2014 02:06 AM  3 years agoPost 14
rcflyerheli

rrKey Veteran

Granbury, TX USA

My Posts: All  Forum  Topic

I have used my 2k inverter generator with my powerlab 8 and I don't recall hearing or seeing any pulsing on the generator.

Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

PM  EMAIL  GALLERY  Attn:RR  Quote
11-18-2014 04:30 AM  3 years agoPost 15
Gregor99

rrElite Veteran

Western Wa

My Posts: All  Forum  Topic

It doesn't do it every scenario. Charge rate and pack state of charge can change the ratio of input and output voltage.

For instance I had some supplies where it never happened until I bumped up my headspeed. The increased headspeed drained the pack a little more, which caused the starting voltage to just below the threshold.

When you increase the charge rate it can lower the loaded supply voltage. This can help keep the supply voltage low enough that its below the transition range. But lower the current and the supply voltage will increase slightly. Potentially putting it into the transition range.

If its not bothering you, don't worry about it. But if you hear the generator pulsing now you know a likely cause.

Revolectrix Beta Team

PM  EMAIL  GALLERY  Attn:RR  Quote
11-18-2014 04:40 AM  3 years agoPost 16
rcflyerheli

rrKey Veteran

Granbury, TX USA

My Posts: All  Forum  Topic

Thanks for the info. I'm pretty up on mechanical stuff, but this electrical theory is way outta my league.

Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1449 views POST REPLY
HomeRC & PowerAircraftHelicopter
e-
Electric Battery-Charger-pSupply
› Powerlab 6 charging station
 Print TOPIC  Make Suggestion 

 5  Topic Subscribe

Friday, October 19 - 2:03 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online