Topic: Rectifier

[rchrdms]

Hi,

I was wondering if anyone knows where I can find plans for a rectifier?

I remember seeing them on the site before, but I can't find them now.

I need to replace my CL 350 Twin's rectifier, and I don't want to pay $90 to the dealer.

Thanks,

Richard Meese

[Gordon]

I don't know where the plans are for a rectifier, but check www.oregonmotorcycleparts.com.  You should be able to get one there for around 25 bucks. 

[Bodi]

I think the 350 has a single phase alternator, so a simple 4 terminal bridge from Allied or Newark or any electronics supplier would work fine. Just screw it to a bit of aluminum sheet for a heat sink and onto the frame.

[mark]

Here's a bridge on a heat sink:

green- red/white+ yellow~ pink~

....some liquid tape to keep the weather out:


35 amp 400 volt bridges GBPC3504L $2.25 each:
http://www.greatplainselectronics.com/products.asp?cat=18&pg=2


Happy trails.

[rchrdms]

Thanks, I'll have to try your bridge method. Idon't know what phase it is. it connects between the alternator(stator/rotor) and battery.

Thanks again.

[kirkn]

A bridge rectifier is just the term used when a collection of diodes is arranged in a particular way.  As compared to a single diode.

The CL alternator is a single phase alternator, as mentioned, which means that it only has one phase, or circuit, creating the AC power.  Other bikes use a three phase alternator, which has 3 separate phases, or circuits, creating the AC power.

Here's a schematic I drew up once for a Honda SL125 circuit.  Pay no attention to the lower half of the diagram - the bridge rectifier is the upper half, showing the four diodes.  AC flows on the yellow and pink wires from the alternator.  The 'rectified' output, or DC, flows out the red wire to the battery & load.



BTW, thanks for that link to the great plains site.  I ordered a few of those bridges just today.  Working on a couple projects where they'll be needed...  Thanks.

Kirk