Search found 44 matches

by DaWaN
Sun Jan 26, 2014 9:48 pm
Forum: Users Rides
Topic: 1983 Sierra XR4i
Replies: 3
Views: 10430

Re: 1983 Sierra XR4i

Perfect donor for a Cosworth BOA / BOB engine swap, the engine should bolt up to the manual gearbox. I have looked into Ford Sierra XR4i's as they are the perfect donor for a Cosworth BOA / BOB engine. The Cosworth V6 is very cheap and easy to find, but they were only available with an automatic gea...
by DaWaN
Fri Oct 18, 2013 10:48 pm
Forum: DIY HW
Topic: sim's Volvo 245
Replies: 34
Views: 103792

Re: sim's Volvo 245

Offtopic: I really like the new FTDI FT230XS bare-bones USB -> Serial chip. Very simple BOM: only need decoupling / filtering and Windows finds drivers automagically. Also in DIY friendly SSOP package. My standard choice now :)

Ontopic: Does the car run fuel injection yet ?
by DaWaN
Fri Sep 06, 2013 10:54 am
Forum: For Sale
Topic: Feeler For Interest In Next 10 Of Andy's 0.6-alpha Jaguar
Replies: 80
Views: 274773

Re: Feeler For Interest In Next 10 Of Andy's 0.6-alpha Jagua

If any SMD soldering is needed: I do have time and skill to help out on that part :)
by DaWaN
Mon Dec 31, 2012 12:30 pm
Forum: FreeEMS Hardware Dev
Topic: Power Supply Design - Input Protection Scheme
Replies: 78
Views: 123061

Re: Power Supply Design - Input Protection Scheme

The way I 'read' the schematic, it will protect the +5vSwitched from over voltage (and, as has been mentioned, the 5v6 Zener looks somewhat superfluous now). However, it will NOT protect the +5vTPS and +5vAux lines at all. Correct, as the +5V TPS and +5V AUX lines go directly to the connector to th...
by DaWaN
Sat Dec 29, 2012 4:05 pm
Forum: FreeEMS Hardware Dev
Topic: Power Supply Design - Input Protection Scheme
Replies: 78
Views: 123061

Re: Power Supply Design - Input Protection Scheme

Huff/Fred/Others, Corrected schematic for you! http://i183.photobucket.com/albums/x115/ae86dragracer/Idea3_zps79d4079a.png Cheers, Dan With this schematic I think the 5v6 zener can be omitted as it will never come into action If I get this correctly the TIP42 is secured by the polyfuse ? Because th...
by DaWaN
Wed Oct 10, 2012 7:37 am
Forum: EMStudio
Topic: malcom2073's EMStudio development thread. (Comments welcome)
Replies: 117
Views: 205625

Re: malcom2073's EMStudio development thread. (Comments welc

Fred wrote:
I can run it from source, so your deps are wrong/excessive.

Fred.
I think malcom2073's releases are built for release version of the QT lib, while your build are most likely built for debug version of QT Lib.
Are you sure you have the release version of QT lib as well ?
by DaWaN
Tue Oct 02, 2012 8:03 am
Forum: FreeEMS Hardware Dev
Topic: Power Supply Design - Input Protection Scheme
Replies: 78
Views: 123061

Re: Power Supply Design - Input Protection Scheme

Thanks! Do you have any thoughts/feedback on my dual Zener plus current limit idea? I must check tolerances on Zener diodes and Current / voltage diagrams to see how much a 5V1 Zener leaks at 5V If the 5V1 zener leaks and dissipates more than 50mW it will mean extra heat in the box, which is someth...
by DaWaN
Tue Oct 02, 2012 7:31 am
Forum: Soldered
Topic: RGB dashboard backlight, PCB's are in!
Replies: 26
Views: 60331

Re: RGB dashboard backlight (disco disco huh huh)

Cool idea, I had the same idea some time ago and then basically thought: "It will take too much time" I think you experienced that ;) Nice you kept going. For the design I have some questions: Why a 5V power supply ? A 3.3V power supply seems much more logical to me as the dissipation in t...
by DaWaN
Mon Oct 01, 2012 7:08 pm
Forum: FreeEMS Hardware Dev
Topic: General Purpose Low Level Ignition Drive
Replies: 60
Views: 102667

Re: General Purpose Low Level Ignition Drive

Dan wrote:Testing of the MC34152 ondifferent levels of supply voltage (5V, 12V, 14.4V, etc).
I do not want to be rude but....do you know the MC34152 features a undervoltage lockout at 5.8V?
by DaWaN
Sun Sep 30, 2012 9:00 pm
Forum: FreeEMS Hardware Dev
Topic: Power Supply Design - Input Protection Scheme
Replies: 78
Views: 123061

Re: Power Supply Design - Input Protection Scheme

The TL-431 is the most used programmable shunt regulator
http://www.fairchildsemi.com/ds/TL/TL431A.pdf