corsasport.co.uk
  Not logged in [Login - Register]  
You Are Not Registered Or Not Logged In  

Corsa Sport » Message Board » Off Day » Geek Day » need help with a small simple circuit


New Topic
New Poll 		  Subscribe | Add to Favourites

You are not logged in and may not post or reply to messages. Please log in or create a new account or mail us about fixing an existing one - register@corsasport.co.uk

There are also many more features available when you are logged in such as private messages, buddy list, location services, post search and more.


Author need help with a small simple circuit
gtitim
Member
Registered: 13th Feb 05
Location: the boonies
User status: Offline
   18th Jan 09 at 19:14   View User's Profile U2U Member Reply With Quote
Need to make the following circuit work, but it wont:

12v +ve input - 12v LED - 1A diode -
12v +ve input - 12v LED - 1A diode -
12v +ve input - 12v LED - 1A diode - all 4 into common 2k resistor -ground
12v +ve input - 12v LED - 1A diode -

Wired it up but it didnt work when tested. Could i have blown the components when soldering by overheating?

Never built circuits before so struggling with it all.
ed
Member
Registered: 10th Sep 03
User status: Offline
18th Jan 09 at 19:34   View User's Profile U2U Member Reply With Quote
Did you use 12v LED's?
gtitim
Member
Registered: 13th Feb 05
Location: the boonies
User status: Offline
18th Jan 09 at 20:38   View User's Profile U2U Member Reply With Quote
yes - or at least thats what i asked for in maplin. will have to order some more parts and try again i think
Dan
Premium Member

Avatar

Registered: 22nd Apr 02
Location: Gorleston on Sea, Norfolk
User status: Offline
18th Jan 09 at 20:42   View Garage View User's Profile U2U Member Reply With Quote
diodes the correct way around? wired the led the correct way?

Adult GiftsClick here to vist us
gtitim
Member
Registered: 13th Feb 05
Location: the boonies
User status: Offline
18th Jan 09 at 20:45   View User's Profile U2U Member Reply With Quote
yes - LED with short leg to -ve, diode with stripe to -ve, just think i must have burnt some of the diodes out with ham fisted soldering.
Dan
Premium Member

Avatar

Registered: 22nd Apr 02
Location: Gorleston on Sea, Norfolk
User status: Offline
18th Jan 09 at 20:47   View Garage View User's Profile U2U Member Reply With Quote
got a multi meter? test the circuit

Adult GiftsClick here to vist us
gtitim
Member
Registered: 13th Feb 05
Location: the boonies
User status: Offline
18th Jan 09 at 20:53   View User's Profile U2U Member Reply With Quote
by putting 12v in and testing after each component i should be able to see if i have burnt something out?

the theory is that when the inlet on my car alters, it sends a 12v signal to the ecu, lighting the circuit and the LEDs

 
New Topic
New Poll

  Related Threads Author Forum Replies Views Last Post
Crocodile Clips, pc program Bonzai General Chat 18 601
27th Oct 03 at 01:06
by lordbonzai		  
Indicator Problems ed General Chat 10 976
20th May 05 at 16:29
by 1800ed		  
My gt-four on Blitz rims Ned General Chat 72 1367
7th Nov 05 at 23:14
by muppetsport		  
Cost to build a circuit... AK General Chat 55 2474
22nd Nov 07 at 19:59
by ainsley_brader		  
Electronic specialists: Got an idea... how hard would this be. pow Help Zone, Modification and ICE Advice 12 284
15th Jan 08 at 10:58
by andyc1234		  

Corsa Sport » Message Board » Off Day » Geek Day » need help with a small simple circuit 30 database queries in 0.0122190 seconds