Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopters > Main Forum - Helicopter Talk


Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please


Like Tree226Likes
Reply
 
LinkBack Thread Tools Display Modes
Old 08-07-2021, 11:30 AM   #3021 (permalink)
Registered Users
 
Posts: 2,949
 
My HF Map location
Join Date: Dec 2006
Default

My only concern is I have a 24 volt voltage regulator for my fans, I will just have to check and see how much over 24 volts it can take.
__________________
Align Trex 700 V3 DFC HV Vbar Pro - Vcontol Touch ¦ Mikado Logo 200 ¦ SAB Kraken 580 Vbar Neo ¦ Align Trex 500X Vbar Neo
Raydee is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-07-2021, 01:13 PM   #3022 (permalink)
Registered Users
 
Posts: 5,044
 
My HF Map location
Join Date: Jun 2006
Location: Chrisitansburg VA USA
Default

24v chargers and psu can have some serious issues when charging 6s lipo as the charger goes through a buck to boost transition. Some chargers will oscillate between buck and boost and this can cause problems for generators or in some cases, for the psu. If you can, it is better to use a psu/charger that runs up around 26-27v if you're doing a lot of high power 6s lipo charging.
__________________
Jeti DS14us -- TT e700 -- 6s Logo600se UL -- Logo600-3d -- Logo500 UL -- Charge Case
prototype3a is offline        Reply With Quote Quick reply to this message
Old 08-07-2021, 01:15 PM   #3023 (permalink)
Registered Users
 
Posts: 2,949
 
My HF Map location
Join Date: Dec 2006
Default

I have always heard this but with my setup I have been charging 6s packs mostly on a 24 volt power supply for 10 years or so and never had this issue. With the new supply it may be a problem, I will have to see.
__________________
Align Trex 700 V3 DFC HV Vbar Pro - Vcontol Touch ¦ Mikado Logo 200 ¦ SAB Kraken 580 Vbar Neo ¦ Align Trex 500X Vbar Neo
Raydee is offline        Reply With Quote Quick reply to this message
Old 08-07-2021, 01:17 PM   #3024 (permalink)
Registered Users
 
Posts: 5,044
 
My HF Map location
Join Date: Jun 2006
Location: Chrisitansburg VA USA
Default

It really depends on the exact equipment combo and you may not notice it at all if running off mains instead of a generator.

I remember one setup running off a ... Generac iq2000?... and it would sound like the generator was having a heart attack or something.
__________________
Jeti DS14us -- TT e700 -- 6s Logo600se UL -- Logo600-3d -- Logo500 UL -- Charge Case
prototype3a is offline        Reply With Quote Quick reply to this message
Old 08-11-2021, 10:39 AM   #3025 (permalink)
Registered Users
 
Posts: 12,924
 

Join Date: Feb 2012
Location: Northern, VA
Default

Quote:
Originally Posted by Thunder Fighter View Post
It stops the PL8’s I use going into the buckboost bounce when charging 6s packs.

//Dennis.
What is buckboost bounce?
__________________
-Ben
Oxy 2/3/4/5; XL 550/700; Protos 380/700 EVO; RAW; Jeti DS12 Carbon

EGODRIFT Team, Lynx/Oxy Field Rep
jrman83 is offline        Reply With Quote Quick reply to this message
Old 08-11-2021, 10:54 AM   #3026 (permalink)
CHC Benefactor
 
Posts: 6,444
 

Join Date: Feb 2006
Location: Singapore
Default

Quote:
Originally Posted by jrman83 View Post
What is buckboost bounce?
There are two types of voltage converting DC to DC, one to increase the voltage and one to decrease. When the pack voltage, ie the voltage output of the charger, matches the input then it has to switch to the other type. It seems during the period where the voltages are similar, the charger oscillates between the two methods causing this pulsing sound. For 6S this voltage is 24V.
Thunder Fighter likes this.
__________________
Playing with gravity one heli at a time
Dancing with gravity one flight at a time
Raptorapture is offline        Reply With Quote Quick reply to this message
Old 08-11-2021, 11:17 AM   #3027 (permalink)
Registered Users
 

Join Date: Jun 2004
Default

Hey Guys.

The buck/boost transition has only really shown itself on generators where they have been set to auto-throttle, this allows them to ramp and down according to load. So it's not there running at full power unless necassary.
So the RPM bounce as said above starts when the voltage demands in the charger changes as it crosses over from buck (reduce) to boost (increase), which is the point at which the charging LiPo voltage matches that of the input volts from the PSU and all load drops away from the generator. At this point with no load on it, the generator is sat there pulsing as it does not know what to do.
Remove the auto-throttle and the problem usually goes away.

One idea that could be tried is to add another additional small load on the generator so it always has some applied to it, a small light bulb perhaps.

Ian Contessa
__________________
Ian Contessa
Coolice Charge Cases & Power Supplies
Facebook Page
Coolice is offline        Reply With Quote Quick reply to this message
Old 09-09-2021, 02:15 PM   #3028 (permalink)
Registered Users
 
Posts: 10,950
 

Join Date: Sep 2018
Location: Snohomish, WA
Default Post your charger case

Changing from a 2-charger setup to a 4-charger setup using the same PSU and case.

What it was:




What it will be in a couple days:



I don’t do any of that fancy flush mounting for the chargers, so they’ll be taped to the deck as before.
richardv and jhamel like this.
xoexoe is offline        Reply With Quote Quick reply to this message
Old 09-09-2021, 04:25 PM   #3029 (permalink)
Registered Users
 
Posts: 5,999
 

Join Date: May 2009
Default

I love this thread and watching the creativity of all but have some of you seen the new ISDT X16 and other all in one from the brand?

I think it is going to change the charger case game being all in one at a very reasonable price considering all you get.
Get a case put the charger in it you have a charger case

https://www.progressiverc.com/collec...ducts/isdt-x16

Still love the cases in the thread.
__________________
TDSF, TDR-II, Triabolo, 2 X TDR, Logo 700,Protos evoluzione, T-Rex 700Dominator, Drake & Raw, SpiritRS, Jeti DC-24,HW,Kosmik,Jive Pro
EF MXS 3W110, Ultimate Aeroworks 20-300, DA 170, PowerBox Mercury, Q80-8M in a 91" EF Extra and MXS 104+ few jets
Puttputt maru is offline        Reply With Quote Quick reply to this message
Old 09-09-2021, 07:07 PM   #3030 (permalink)
Registered Users
 
Posts: 10,179
 

Join Date: Mar 2011
Location: Charlotte, NC USA
Default

I personally believe we may see more of the smaller $225.00 ISDT K4 than the larger $629.00 ISDT X16 sibling in our circle.
__________________
14S Tron 7/Protos 700X Evo/Kraken; 7S Kraken 580/Logo 550SX V2; 6S Buddy 380 KSE
VBC Touch & Neo Vlinks, YGE "T" ESCs; AGM Deep Cycle Batteries
Sims on Mac: Heli-X, neXt, AccuRC, RF9, Phoenix, AeroFly RC7 Ultimate
Amain Field Representative
jhamel is offline        Reply With Quote Quick reply to this message
Old 09-10-2021, 04:06 AM   #3031 (permalink)
Registered Users
 
Posts: 802
 

Join Date: Feb 2006
Location: UK
Default

Quote:
Originally Posted by xoexoe View Post
Changing from a 2-charger setup to a 4-charger setup using the same PSU and case.
...
I don’t do any of that fancy flush mounting for the chargers, so they’ll be taped to the deck as before.
I started a case with 4 ISDTs on the deck, but it looked such a mess with the leads, I haven't progressed with it. I'm interested to see how yours turns out.
xoexoe likes this.
__________________
XL Power - EGODRIFT - ManiaX - Hely-shop
facebook.com/3drchelipilot - VBar Utilities
richardv is offline        Reply With Quote Quick reply to this message
Old 09-11-2021, 06:11 PM   #3032 (permalink)
Registered Users
 
Posts: 10,950
 

Join Date: Sep 2018
Location: Snohomish, WA
Default

Quote:
Originally Posted by richardv View Post
I started a case with 4 ISDTs on the deck, but it looked such a mess with the leads, I haven't progressed with it. I'm interested to see how yours turns out.
Each charger has a 1 foot XT60 cable extender and a 1 foot balance extender. Total of 8 feet of wires that I need to stuff in there plus the 2 foot or so AC power cord. It does take a minute or two to stuff everything away.

The 6 adapters I have fit fine up top. Not sure where to put my voltage tester though.











Attached Thumbnails
Click image for larger version

Name:	AF9CAE6B-3239-495A-9DC6-DCC73A114F47.jpeg
Views:	341
Size:	132.9 KB
ID:	931827   Click image for larger version

Name:	A5FF79FC-2C48-4623-859C-4BD8B83B0DEA.jpeg
Views:	327
Size:	137.0 KB
ID:	931829   Click image for larger version

Name:	648C8330-733E-4F59-BA0D-A988375D6D57.jpeg
Views:	333
Size:	160.8 KB
ID:	931831   Click image for larger version

Name:	BFE158E8-0488-41AE-B1BF-E83931C8829B.jpeg
Views:	331
Size:	137.3 KB
ID:	931833   Click image for larger version

Name:	D7B04361-9D5C-4F8A-ACD8-5E5FF29C472E.jpeg
Views:	336
Size:	128.8 KB
ID:	931835  

Click image for larger version

Name:	C694858C-A6BB-401F-9A89-DA05815A9B13.jpeg
Views:	327
Size:	134.5 KB
ID:	931841  
richardv, jhamel and fiddle like this.
__________________
— XLP Specter V1, XLP 550, Oxy 4 Max, Oxy 2, OMP M1 —
— Spirit GT — Egodrift & XNova, YGE & Scorpion, FrSky Horus OpenTX —
— WTB XLP Wraith for cheap —

Last edited by xoexoe; 09-11-2021 at 06:26 PM..
xoexoe is offline        Reply With Quote Quick reply to this message
Old 09-13-2021, 07:13 AM   #3033 (permalink)
Registered Users
 
Posts: 4,490
 

Join Date: Feb 2019
Location: USA::Ohio
Default

Nice looking case xoexoe! I have one coming today that Number made ... I'll post pictures later.
xoexoe likes this.
__________________
Vcontrol Touch, AccuRC & Heli-X Simulators
Oxy 5 MEG, 4 MAX, 2 (215)
SAB Goblin 500 Sport
XL Power Specter 700
fiddle is online now        Reply With Quote Quick reply to this message
Old 09-13-2021, 12:03 PM   #3034 (permalink)
Registered Users
 
Posts: 1,359
 
My HF Map location
Join Date: Sep 2010
Location: Norcal
Default

Can ISDT users comment on the software? Is it functional enough to completely hide the charger under the deck?

I'm working with an X16 and trying to figure out my case configuration.
Weule is offline        Reply With Quote Quick reply to this message
Old 09-13-2021, 12:39 PM   #3035 (permalink)
Registered Users
 
Posts: 10,950
 

Join Date: Sep 2018
Location: Snohomish, WA
Default Post your charger case

Quote:
Originally Posted by Weule View Post
Can ISDT users comment on the software? Is it functional enough to completely hide the charger under the deck?

I'm working with an X16 and trying to figure out my case configuration.

For the Q8 (and other similar models probably) the only thing you MIGHT want to access is the computer USB port for firmware updates. There are no other physical things to do down there. As long as you can press the buttons on top, you’re good.

Last edited by xoexoe; 09-13-2021 at 01:54 PM.. Reason: Changed P50 to Q8. Forgot what I had.
xoexoe is offline        Reply With Quote Quick reply to this message
Old 09-13-2021, 12:45 PM   #3036 (permalink)
Registered Users
 
Posts: 802
 

Join Date: Feb 2006
Location: UK
Default

Ian did a really nice one with the ISDTs below the deck. Some pics at the end showing the internals. Quite a deep case though.
Weule likes this.
__________________
XL Power - EGODRIFT - ManiaX - Hely-shop
facebook.com/3drchelipilot - VBar Utilities
richardv is offline        Reply With Quote Quick reply to this message
Old 09-13-2021, 12:46 PM   #3037 (permalink)
Registered Users
 
Posts: 1,359
 
My HF Map location
Join Date: Sep 2010
Location: Norcal
Default

Quote:
Originally Posted by xoexoe View Post
For the P50 (and other similar models probably) the only thing you MIGHT want to access is the computer USB port for firmware updates. There are no other physical things to do down there. As long as you can press the buttons on top, you’re good.
Is it possible to completely control the charger through the software? Its a lot easier to build a case if you can hide the entire charger under the deck.
Weule is offline        Reply With Quote Quick reply to this message
Old 09-13-2021, 01:56 PM   #3038 (permalink)
Registered Users
 
Posts: 10,950
 

Join Date: Sep 2018
Location: Snohomish, WA
Default

I meant the Q8, not the P50, sorry.

What do you mean through “the software?” The ISDT Go Bluetooth software? Or via the buttons on top?
xoexoe is offline        Reply With Quote Quick reply to this message
Old 09-13-2021, 02:56 PM   #3039 (permalink)
Registered Users
 
Posts: 1,359
 
My HF Map location
Join Date: Sep 2010
Location: Norcal
Default

Quote:
Originally Posted by xoexoe View Post
I meant the Q8, not the P50, sorry.

What do you mean through “the software?” The ISDT Go Bluetooth software? Or via the buttons on top?
Sorry, my bad - ISDT Go Bluetooth
Weule is offline        Reply With Quote Quick reply to this message
Old 09-14-2021, 06:41 AM   #3040 (permalink)
Registered Users
 
Posts: 4,490
 

Join Date: Feb 2019
Location: USA::Ohio
Default

Quote:
Originally Posted by fiddle View Post
Nice looking case xoexoe! I have one coming today that Number made ... I'll post pictures later.
Due to USPS shenanigans, I do not as yet have pictures to post. Soon! I'm excited!
__________________
Vcontrol Touch, AccuRC & Heli-X Simulators
Oxy 5 MEG, 4 MAX, 2 (215)
SAB Goblin 500 Sport
XL Power Specter 700
fiddle is online now        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © Website Acquisitions Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1