Electronic loads ?  - Page 1
Forum section: electronics / general

author: Flump
author_rank: Frequent Contributor
timestamp: October 23, 2014, 10:26:53 am
content: Does anyone know where to get cheap (hobby cheap) loads from ?I want one for testing batteries and low amp 12v power supplies withso up to a few amps is okay.

author: TopLoser
author_rank: Unknown
timestamp: October 23, 2014, 10:46:26 am
content: https://www.tindie.com/products/arachnidlabs/reload-the-simple-robust-affordable-dummy-load/

author: dr.diesel
author_rank: Super Contributor
timestamp: October 23, 2014, 10:50:11 am
content: Also from the same guys as above:https://www.tindie.com/products/arachnidlabs/reload-pro/Which I believe calculates amp/hour automagically.

author: Yago
author_rank: Frequent Contributor
timestamp: October 23, 2014, 12:38:11 pm
content: Give KJDS a shout here (on EEVBlog), he often sells these:http://uk.farnell.com/keysight-technologies/6632b-230-plg/power-supply-1ch-20v-5a-adjustable/dp/1777818Will do 100watt as a power supply or as a load.I got a couple from kjds, they are nice units and great for the price he sells them at about £140 each. They are used but built to last (a bit large, loud and warm!)

author: con-f-use
author_rank: Unknown
timestamp: October 23, 2014, 02:42:27 pm
content: And another one on tindie, theMightWatt. Beefier (can handle more power) andbetter engineeredthan the one by arachnid lab but also more expensive. With that, you'd already be a third on your way to aMaynuo M9719pricewise.

author: dexters_lab
author_rank: Unknown
timestamp: October 24, 2014, 10:51:34 am
content: Quote from: Yago on October 23, 2014, 12:38:11 pmseconded

author: dinoboy
author_rank: Contributor
timestamp: October 24, 2014, 11:33:19 pm
content: Quote from: Flump on October 23, 2014, 10:26:53 amhow cheap?

author: ElectricGuy
author_rank: Regular Contributor
timestamp: October 25, 2014, 12:06:26 am
content: Its in Portuguese, but...http://maia-porto.olx.pt/agilent-n3301a-electronic-dc-load-600w-iid-464715323

author: sleemanj
author_rank: Super Contributor
timestamp: October 25, 2014, 12:26:38 am
content: Quote from: Flump on October 23, 2014, 10:26:53 amI have no association with the below, have not purchased (yet), don't take this as a recommendation it's just something I've stumbled across in my internet travels and may buy myself.This fella zke2006 on taobao produces the "EBD" or "EBC" series of loads designed mainly for that purpose, although the EBD-10 is more general. The smaller ones tend to have just selectable current draws and quite low voltage/current limits for general purpose (but suited to cell testing), also has appropriate software, USB connection.http://zke2006.taobao.com/?spm=2013.1.1000126.2.0s5AlqThey can be found on Aliexpress in more english:http://www.aliexpress.com/store/group/EBD-EBC/914980_253233836.htmlChinese blog which has links to the software etc:http://zke2006.blog.163.com/English version of software link on this page:http://zke2006.blog.163.com/blog/static/199527095201111284512232/I've been thinking about getting an EBD-10H (there is a 20H (20 Amp) as well, but the only difference appears to be higher current banana jacks from what I can tell), it claims to do constant power which is something I particularly want in a cheap load (no idea if constant power is done in analog or digital though), the re:load devices do not do CP at all (yet?). The Aliexpress seller doesn't have any feedback for that one, but the Taobao listing's feedback seems positive. I also found somebody write about using it (not in english, can't find the link now) and seemed to be doing what it said it should.

author: Macbeth
author_rank: Super Contributor
timestamp: October 25, 2014, 12:44:44 am
content: Quote from: dexters_lab on October 24, 2014, 10:51:34 amThirdedCheck out Dave's vids on the earlier 6632A. The 6632B is nicer as it's VFD instead of LCD (subjective), and also has RS232 in addition to GPIB. All my other equipment is USB and so I have no need for GPIB, especially considering how expensive that ancient stuff is. Having RS232 means I can use a simple USB/RS232 leadso long as it's not FTDIand plug it into my USB hub.The current sinking capability is brilliant. It's a 2 quadrant supply. It's built like a tank (and weighs as much too - around 12kg).There are lots of them out there - I may just get another!. I've noticed a lot seem to be ex-Nokia factory.Agilent/Keysight still sell them new for around £2200 inc VAT at Farnell UK!ETA: A complaint of the earlier 6632A was the fan being constantly on high - the 6632B actually steps the fan, but also has a menu option to change fan speed from auto to manual - in the user guide it is suggested for "acoustic environments" but to obviously keep watch in that case.

author: Flump
author_rank: Frequent Contributor
timestamp: October 25, 2014, 09:57:35 am
content: Quote from: dinoboy on October 24, 2014, 11:33:19 pmAround £50I will only use it now and then so no point spending more on oneThank you all for the replies

author: arekm
author_rank: Unknown
timestamp: June 28, 2016, 01:53:39 pm
content: Noticed these EBD loads on chinese website...http://www.banggood.com/EBD-USB-Electronic-Load-QC2_0-3_0-MTK-PE-Trigger-Voltage-Current-Capacity-Tester-p-1064036.htmlSo did anyone actually bought these and tested?

author: Jeroen3
author_rank: Super Contributor
timestamp: June 28, 2016, 02:33:39 pm
content: Look interesting. Iwasconsidering building one. But I can't compete to 15 USD.

author: sleemanj
author_rank: Super Contributor
timestamp: July 01, 2016, 05:27:36 am
content: That's a very good price, you can hardly buy it for that even if you were in China.Here's ZKE's lising on taobao for that product, there are a couple of variants.https://item.taobao.com/item.htm?spm=a312a.7700824.w4002-1829505349.44.057W2m&id=522918092453Here's a translated PDF capture of the page if you have trouble viewing it at TB (geographic restrictions)https://drive.google.com/file/d/0B7NRgk3zdvv3ZkFUWHRrc0g0bWc/view?usp=sharingWith that said, it doesn't really appear to be so useful as a general purpose load, more tailored specifically to testing USB power supplies (chargers).