Solution to rec/reg charging problems

discussions specific to the 907IE
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Tamburinifan
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model: 907 I.E.
year: 1991
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Solution to rec/reg charging problems

Post by Tamburinifan »

Shindengen 3phase who works a bit different, here to connect to 748 2phase:


Image

http://www.shindengen.com/resources/con ... 20Data.pdf

Basically it's like this: Most regulator rectifiers, including Ducati's, are SCR type units. SCR stands for Silicon Controlled Rectifiers, i.e. the type
(composition) of the rectifier components incorporated into the unit's circuit board. While SCR's do the job, some time ago the electronics genies
discovered/developed what is called "mosfet" transistors (Metal-Oxide-Semiconductor Field-Effect Transistor). I became aware of them through their use in audio and power amp circuits. These little marvels are increasingly being used in all sorts of circuitry as they are more efficient, have less resistance, when they shut down they do so completely not holding residual charge etc. Simply put they're more robust so when I discovered that a Japanese manufacturer had developed a mosfet reg/rec unit I investigated further. And as you will see if you check some of the links below people have been upgrading several different brands of bikes with mosfet units and getting good results.
More info:
http://www.ducati.ms/forums/80-hall-wis ... blems.html
http://www.triumphrat.net/speed-triple- ... grade.html


You guys w electrical knowledge, will this work f us?
F e, will you have to find one w the same 350W capacity or will a larger do?
Gert

907 I.E. -91
M900 -97
MTS 1100s -07
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blazing928
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Joined: Tue Sep 15, 2009 4:08 am
model: 907 I.E.
year: 1991
Location: Melbourne Vic, Australia

Re: Solution to rec/reg charging problems

Post by blazing928 »

this is very cool info, thanks
Nigel

91 907IE - full restoration
91 907IE Red, Wilbers, Staintune Conti, Corbin,
MPL Slipper,Ceramic exhaust

Lambretta LI150 S3
87 928S4

http://www.paolopirozzi.com/it/ - around the world on a Multistrada

907, its not a bike , its a cult
Tamburinifan
paso grand pooh-bah
Posts: 1543
Joined: Thu Jun 21, 2007 12:00 am
model: 907 I.E.
year: 1991
Location: Gothenburg, SWEDEN

Re: Solution to rec/reg charging problems

Post by Tamburinifan »

More info on how different ones work:
http://www.electrosport.com/technical-r ... stem-works

I have too limited knowledge to understand if this works f us,
where are you electric wizards, calling Finnpaso?!?
Gert

907 I.E. -91
M900 -97
MTS 1100s -07
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jcslocum
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Re: Solution to rec/reg charging problems

Post by jcslocum »

It will work. And better than stock!!
Tamburinifan
paso grand pooh-bah
Posts: 1543
Joined: Thu Jun 21, 2007 12:00 am
model: 907 I.E.
year: 1991
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Re: Solution to rec/reg charging problems

Post by Tamburinifan »

FH012AA has 50W output, is that OK?

Seems like we need under 30W:
It's important to note here that, given the obvious need to charge the battery, the stator wires will have to pass 29 amps (350 watts/12 volts) continuously.
From http://www.ducati-upnorth.com/tech/chargingfailure.php .


Why a 30A fuse here?
So to upgrade the regulator rectifier on 748' from 1995–1998 you'll need:

Shindengen FH012AA
Replacement wiring (see Shazaam's post for recommendations) :
Furukawa connectors x 2
Heat shrink
30amp blade fuse
Suitable blade fuse holder (preferably good quality and water proof) frequently recommended is the Metri-Pack Fuse holder
From http://www.ducati.ms/forums/80-hall-wis ... blems.html
To protect from overcharging?
Gert

907 I.E. -91
M900 -97
MTS 1100s -07
Tamburinifan
paso grand pooh-bah
Posts: 1543
Joined: Thu Jun 21, 2007 12:00 am
model: 907 I.E.
year: 1991
Location: Gothenburg, SWEDEN

Re: Solution to rec/reg charging problems

Post by Tamburinifan »

I talked to my dealer today.
Not a bad idea, is like checking tha manual sometimes.... :shock:

They nowadays sells 2 Shindengen units:
1 w 3 yellow wires & 1 w 2.
If I got it right on the 2 wire one:
Shindengen no SH579B
Duc sp part no 5404111C
130 Eu f that, 115 f 3wire.
2wire came in 2 versions: SS/M & 916/748, wiring differ.
No possibility f warning light on both IIIRC.

Edit: Shindengen no indicates NOT a FET reg, so I`m still a bit puzzled which to uppgrade to....
Gert

907 I.E. -91
M900 -97
MTS 1100s -07
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