Split Charging: Diodes, VSR, or Series Regulator?

[rogerthebodger]

Would love to have a copy of the data sheet you have

Thanks

 

[alan]

Will look for it at the weekend and send you the web address or if needs be scan it for you.

Alan.

 

[halcyon]

Alternators always used to be rated in watts at 14.0 volt, doing a quick check on Yanmar, they rate an amperage, still at 14.0 volt though.

Brian

 

[halcyon]

MOSFET's are transistors designed to conduct one way, but normally include a reverse diode across them. This means they will conduct in the reverse direction via this diode.

So if planning on using them, look at your charge paths, or reverse paths critically.

Brian

 

[William_H]

Hi Halcyon I wouldn't like to argue about the ratings of an alternator but I still think that at max current it will be really pushing to maintain the max voltage. So I think the principal I was describing still will cause a diode splitter to carry much less current for charging than a heavy relay contact. (even when batteru voltage sensed)
I don't know why people are so negative about a physical relay. They should be reliable. Consider that you have a similar relay to start the engine and they give very little trouble. olewill

 

[halcyon]

Hi William_H, I am not in any disagreement with you regarding relays, I have been designing and manufacturing split charge relay systems since 1980 !! We actually got into it, pattenting a system to get round the volt drop problem with diodes back in mid 1970's.

Brian