Search found 38 matches

by neilg
Wed, 01 Jul 2015, 05:44
Forum: Batteries, charging, management and monitoring
Topic: Weber & Coulomb's LyteFyba BMS
Replies: 72
Views: 36053

Weber & Coulomb's LyteFyba BMS

The reverse current of the LED maybe similar to the leakage of the LM334 and keep the LED to <6v but I would err on the side of safety and put a reverse protection diode in. You wouldn't want it failing!

by neilg
Tue, 30 Jun 2015, 05:58
Forum: Batteries, charging, management and monitoring
Topic: Weber & Coulomb's LyteFyba BMS
Replies: 72
Views: 36053

Weber & Coulomb's LyteFyba BMS

With respect to the low cost RS232 - can the Lm334 in series with the Opto LED take -25 volts? I believe most LEDs have a reverse voltage of about 5v. (haven't checked the specs of the EL3H7 or reverse charastics of the LM334). With the relay drivers you could just use a Clare CPC1002 SSR - 2mA LED,...
by neilg
Mon, 23 Feb 2015, 07:14
Forum: Mitsubishi
Topic: Charging cable has died!!!
Replies: 80
Views: 13367

Charging cable has died!!!

I do believe that you are NOT supposed to solder the wires before making the connection because the solder can deform over time, resulting in a loose connection and overheating.
Strange though that the unsoldered lead was the one that failed!

by neilg
Sun, 11 Jan 2015, 00:58
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2788
Views: 712521

PIP-4048MS inverter

"That problem I mentioned: When you hit the big red stop button ..."

Can I suggest a simple solution: A 12v plugpack running directly off the genset output - battery connected or genset running = 12v!

by neilg
Sun, 10 Aug 2014, 04:51
Forum: Batteries, charging, management and monitoring
Topic: gEDA PCB queries
Replies: 15
Views: 3043

gEDA PCB queries

Hi jonescg If you have drawn a schematic the then gEDA PCB should be able to do a Design Rules Check which will verify that all connections have been made, there are no cross connections between components and finally that there is adequate clearance between components and tracks etc. A tip for manu...
by neilg
Wed, 20 Nov 2013, 05:07
Forum: Mitsubishi
Topic: sun screen
Replies: 14
Views: 2438

sun screen

Years ago I used a simple piece of reflector backed curtain material (lasted for years and was cheap) which went over the whole screen and a bit of the roof and into the door openings. Doors held it taught.
Hop in, pop pgr door and pull into the cabin but watch out it could be HOT.
by neilg
Sun, 10 Nov 2013, 06:27
Forum: Nissan
Topic: Portable generator
Replies: 73
Views: 15856

Portable generator

This is the RAC generator taken at the Electrokhana this year.
Unfortunately you can't see the ICE details.


by neilg
Sun, 09 Jun 2013, 06:14
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 402636

Weber and Coulomb's MX-5

Coulomb Had a look at the Motor speed controller and found the following issues. 1. There is no ground connection on the chip. 2. The cct diagram could be confusing by using the ^ to mean +~11v and it being upside down to mean GND - suggest using +11 instead of ^. 3. Are you sure the +~11 connects t...
by neilg
Fri, 24 May 2013, 07:00
Forum: Members Machines
Topic: StudentEV's Daihatsu Conversion
Replies: 106
Views: 14287

StudentEV's Daihatsu Conversion

Had a quick look on ebay and found the following NiMH charger. [url=mailto:]BA6c 80w PRO Charger[/url] It is: Mains ...
by neilg
Thu, 04 Apr 2013, 05:13
Forum: The Lounge
Topic: Electric skateboard
Replies: 1
Views: 668

Electric skateboard

TED has a 4 minute episode on a group of guys who took electric aircraft parts and motorized a skateboard with a hand control. ... boost.html

by neilg
Tue, 12 Mar 2013, 05:49
Forum: AEVA WA Branch
Topic: Electrikhana 2013!
Replies: 10
Views: 2212

Electrikhana 2013!

I have about 70 photos of the day (mostly the same as those on Coulomb Racing's Facebook page) but I do have an early one of the crowd and vehicles, the UWA Lotus and one for you Ian, on the second loop when you just broke away the back end. Now I have the EV grin
by neilg
Wed, 06 Mar 2013, 05:25
Forum: Members Machines
Topic: Johny's Electric Vogue
Replies: 287
Views: 47862

Johny's Electric Vogue

Been following your build for ages and really appreciate your attention to detail. As to the vibration, have you considered out of round drums or bent half shafts or even binding crown & pinion. The rotating mass is now much less than before which may make any previous vibration more noticeable. You...
by neilg
Wed, 23 Jan 2013, 06:34
Forum: Admin Notices
Topic: Forum Software Upgrade
Replies: 22
Views: 5153

Forum Software Upgrade

On the 17/1/13 I cleared some of my browser's (Firefox) history and since then the 'New Posts' function doesn't set the 'Show Topics' to my last access date and time (like it used to) but gives me 'yesterday' - Note that I don't normally log in. I tried ...