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Re: Re DC conversions.
Posted: Sat May 07, 2011 9:48 pm
by Rich_T
22/2 wrote:Picked up a BGM AC/DC Reg /Rec at Builth, fitted it today and not impressed yet.
AF original Ducati 12V flywheel and stator, fitted per instructions (not really much to do wrong), put a meter on and got 4.7 VDC @ 4600 revs and 10.52 VAC at 4600 revs that can't be enough - can it?
What is the stator puting out before it is rectified/regulated? I take it you're measuring from the rectifier connections not somewhere in the headset. Flywheel do lose their flux after some time, have you checked it with a different flywheel?
Re: Re DC conversions.
Posted: Sat May 07, 2011 10:16 pm
by firekdp
22/2 wrote:AF original Ducati 12V flywheel and stator, fitted per instructions (not really much to do wrong), put a meter on and got 4.7 VDC @ 4600 revs and 10.52 VAC at 4600 revs that can't be enough - can it?
Obviously you never had a battery connected, but were your lights switched on when you took the readings?
Re: Re DC conversions.
Posted: Sun May 08, 2011 7:47 am
by 22/2
Rich_T wrote:22/2 wrote:Picked up a BGM AC/DC Reg /Rec at Builth, fitted it today and not impressed yet.
AF original Ducati 12V flywheel and stator, fitted per instructions (not really much to do wrong), put a meter on and got 4.7 VDC @ 4600 revs and 10.52 VAC at 4600 revs that can't be enough - can it?
What is the stator puting out before it is rectified/regulated?
I'll check.
I take it you're measuring from the rectifier connections not somewhere in the headset.
Yes
Flywheel do lose their flux after some time, have you checked it with a different flywheel?
No, I will.
Thanks for the pointers
Rich
Re: Re DC conversions.
Posted: Sun May 08, 2011 7:49 am
by 22/2
firekdp wrote:22/2 wrote:AF original Ducati 12V flywheel and stator, fitted per instructions (not really much to do wrong), put a meter on and got 4.7 VDC @ 4600 revs and 10.52 VAC at 4600 revs that can't be enough - can it?
Obviously you never had a battery connected, but were your lights switched on when you took the readings?
No battery, no lights on.
Rich
Re: Re DC conversions.
Posted: Sun May 08, 2011 10:21 am
by firekdp
22/2 wrote:No battery, no lights on.
Rich
Then I suspect that for that type of reg/rec everything is OK. Try it with the lights on, the voltage should rise a bit.