Where did you get your regulator?

[Magnum Magna]

I want to Thank Len and everyone that helped with the Regulator relocation kit.
I also want to Thank Cycle-istiC for the center stand. Removing the old regulator was so much easier.

I have a flashing tail light module when braking.  When it cools down I will be relocating it to the old Regulator location.

The Voltage is better now.
1000RPM = 12.0 volts
3000RPM = 14.0 volts
I will put it on the charger tomorrow to give it a good charge.

The regulator connector was not the same but close enough.  I used a trusty Tie-wrap to secure it in place.

[TLRam1]

Robert came over today and his voltage looks good.

Idle was actually upwards of a little over 13 and in revs around 14.7-8. His mounting of the relocation kit looked good also.

[Sledge Hammer]

Won't black also absorb radiant heat from the sun during the day? Heat + voltage regulator = bad news

Radiation efficiency is indeed bi-directional, so yes, direct sunlight adds heat to an efficient radiator.  Charles asked this question during our discussion of relocation strategies, and, according to my measurements, when the bike is parked, at idle, for a several minutes with the sun bearing directly on the regulator/rectifier, the temperature reaches approximately the same maximum that one under the battery box reaches while riding.  In order to find these conditions, however, I had to wait until late in the day, and park the bike with its axis orthogonal to the sun's rays, to achieve normal incidence on the R/R.  Other incidence angles do not show as much temperature rise.

He said "Orthogonal".   

[Magnum Magna]

He said "Orthogonal".   

I did read his post and my little brain just jumped over that word but you pointing it out I had to look it up.  His following sentence did give the understanding of the work so I guess that is why I never looked back.

[Magnum Magna]

Robert came over today and his voltage looks good.

Idle was actually upwards of a little over 13 and in revs around 14.7-8. His mounting of the relocation kit looked good also.

I forgot to add a volt do to the GPS being off by about a volt and that was before the charging.

I have taken a picture will try to post tomorrow.

[Magnum Magna]

To keep the wires from being hit by the tire I tie-wrapped them to some other wires to keep them up and out of they way.

[Cadmandu]

I bought a Shindengen FH012AA from Jack Fleming and a 30 Amp Maxi Fuse from Grainger with a plug kit from Eastern Beaver. This is a MOSFET R/R and does not get hot. I paid 124.00, 18.00 and 15.00 a great fix.

http://www.easternbeaver.com/Main/Elec__Products/Connectors/R_R_Connectors/r_r_connectors.html
jack@roadstercycle.com
http://www.danchuk.com/ItemForm.aspx?ReturnUrl=Danchuk1.aspx?Category=4457723f-d895-4c7d-939a-57b511f90c81&item=13673
http://www.americanautowire.com/contactus.html
http://www.roadstercycle.com/
http://www.nestreetriders.com/forum/general-bike-related/59322-mosfet-type-voltage-regulator.html

[TLRam1]

How much cooler do these run?

Lawrence or Len can you shed some light on this?

[lragan]

Terry, the system is best understood if the alternator is thought of as a constant current output device, not a constant power output device.  This is not precisely true, but it is a much better model than that of constant power.

I would have to measure the unit on the bike to know how much cooler it runs.  Looking at the schematic, this design has accomplished half of what I was thinking of doing to reduce dissipation -- notice that the shunt devices, used to shunt unneeded current to ground (under lighter load conditions or high rpm) are MOSFETs not SCR's.  The MOSFETs have much lower voltage drop across them while conducting, thus reducing the dissipation of this function.

The series rectifiers are still diodes.  It is possible that these are a compound semiconductor of some sort that have lower forward voltage drop while conducting, but my guess is that they are still silicon diodes, similar to the ones in the OEM regulator/rectifiers.  If so, then their dissipation will be similar. 

Without knowing all the operating conditions, it is not possible to estimate the relative dissipation between the two sets of devices.  At full load (using all the current that the alternator can provide), there will be little or no dissipation savings, assuming silicon diodes.  Under light load, where excess current is dumped to control the output voltage, the dissipation savings will be substantial.