Help - Actually Hate the P3 Driver...

everytime i come to use one of these drivers i have nothing but problems with the fucking red light!

as you can tell im getting the fucking hump.

dont know what to say really, ive wired it up as normal.

4x 445 diodes wired in series, all diodes are working 100%

interlock connected

12v input

tried two different drivers to make sure its not the driver

have used one driver to power 4x 445 diodes before so i know it works. although they were wired in parallel

as soon as i connect power i get 4 faint blue lights then straight off as red light comes on.

if i wack the input voltage up to 17v i get a bright burst of blue light before the red light comes straight on. so thats how i know all diodes are working

http://i187.photobucket.com/albums/x..._010Medium.jpg

http://i187.photobucket.com/albums/x..._011Medium.jpg

12V is not enough to drive 4 diodes in series with a voltage drop on each diode of up to 4.8V each. You would need 24V to be on the safe side.

ok thnks back to parallel i go

Con,
Sometimes you're a massive chop. >:)

*retardo

Quote:

---

Originally Posted by danielbriggs

Con,
Sometimes you're a massive chop. >:)

*retardo

---

Ill second that!

Con,
Sometimes you're a massive chop

Rob

ill third it for being rubbish with electronics.

im a chop!

Quote:

---

Originally Posted by andy_con

ill third it for being rubbish with electronics.

---

Nah... I've claimed that title... If there was a king of being rubbish with electronics it would just have to be me >:)

Con, your a whiz with the mill, but put down the soldering iron and nobody will get hurt.

Don't hate the thing that's protecting your diodes from... yourself ;)

24V is probably overkill, but if you can give it a solid 18 and don't over-driver them you'll be ok. With series diodes, you should connect a 0.1uF cap across each diode.

However, parallel with a 5.5V PSU is a very good way to go.

is the cap necessary for all diodes wired in series andrew, or just the blue ones?