Most regulators won't pull current when connected to the battery in the absence of an input.
Place the diodes between the current source and the regulators to keep their 14.2v output without the diode drop.
Arby
From: greenpjs04 <forums@greensdomain.com>
To: electricboats@yahoogroups.com
Sent: Friday, July 26, 2013 9:43 AM
Subject: Re: [Electric Boats] Multiple source charge controller?
Not really. It (using diodes with outputs connected in parallel) allows you to safely connect multiple devices simultaneously but the device that is outputting the highest voltage at the time will be the only one supplying current to the batteries. If that device's voltage drops to equal another, both will supply current, but in most cases, only one device will be charging the batteries at a time.
With modern electronics, I will guess the charge controller you wish for will be available soon. It would take power from each source device and convert the DC voltage to whatever is needed to match the others. Multiple inputs would do that for each source regardless of its instantaneous voltage at the time. As you say, micro-inverters show that similar complex functions are possible at a reasonable cost so it is only a matter of time.
Pat
--- In electricboats@yahoogroups.com, oak <oak_box@...> wrote:
>
> Ok, but it at least allows you to pull from multiple devices simultaneously.
>
> I would be surprised if anyone had a device that could mix and match multiple sources and get peak efficiency from each - though that would be great!
>
> As mentioned, the micro-inverters sound like the closest thing to that - but they don't (yet) exist for DC (that we know of).
>
> John
>
>
> ________________________________
> From: Kirk McLoren <kirkmcloren@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Friday, July 26, 2013 10:20 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
>
>
> Â simpler but doesn't extract maximum power from several devices with different criteria.
>
>
>
> ________________________________
> From: oak <oak_box@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Friday, July 26, 2013 8:11 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
> Wouldn't  it work to run each power source (except for grid battery chargers) through a diode, and then the parallel of the diode outputs into a single charge controller??
>
>
> ________________________________
> From: Kirk McLoren <kirkmcloren@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Friday, July 26, 2013 9:38 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
> I suppose the proper way to do it is feed each source into a maximum power point tracker  and sum the outputs of those into the battery pack. They all share the same battery algorithms so sharing should not be a problem. If the battery is in danger of overcharging the propulsion motor is a convenient load, unless conditions don't permit it.
> Â
>
>
>
> ________________________________
> From: John Scott <flyscott06@...>
> To: electricboats@yahoogroups.com
> Sent: Thursday, July 25, 2013 4:43 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
> This is a great company. Lots of good info
> http://www.mwands.com/ missouri wind and solar. They have the systems you are looking for. Good luck.scotty
> On Jul 24, 2013 11:06 AM, "qgold77" <qgold.77@...> wrote:
>
>
> >Â
> >Hello - an old lurker here, but have a quest I'm sure a wise person in this group can help with. I'm looking for device that will take inputs from multiple power sources such as wind/water/solar/shore power/on board generator etc and control the the charging of a couple of battery banks. Can anyone give me a lead?
> >
> >Thanks - Nick
> >
> >
>
With modern electronics, I will guess the charge controller you wish for will be available soon. It would take power from each source device and convert the DC voltage to whatever is needed to match the others. Multiple inputs would do that for each source regardless of its instantaneous voltage at the time. As you say, micro-inverters show that similar complex functions are possible at a reasonable cost so it is only a matter of time.
Pat
--- In electricboats@yahoogroups.com, oak <oak_box@...> wrote:
>
> Ok, but it at least allows you to pull from multiple devices simultaneously.
>
> I would be surprised if anyone had a device that could mix and match multiple sources and get peak efficiency from each - though that would be great!
>
> As mentioned, the micro-inverters sound like the closest thing to that - but they don't (yet) exist for DC (that we know of).
>
> John
>
>
> ________________________________
> From: Kirk McLoren <kirkmcloren@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Friday, July 26, 2013 10:20 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
>
>
> Â simpler but doesn't extract maximum power from several devices with different criteria.
>
>
>
> ________________________________
> From: oak <oak_box@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Friday, July 26, 2013 8:11 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
> Wouldn't  it work to run each power source (except for grid battery chargers) through a diode, and then the parallel of the diode outputs into a single charge controller??
>
>
> ________________________________
> From: Kirk McLoren <kirkmcloren@...>
> To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
> Sent: Friday, July 26, 2013 9:38 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
> I suppose the proper way to do it is feed each source into a maximum power point tracker  and sum the outputs of those into the battery pack. They all share the same battery algorithms so sharing should not be a problem. If the battery is in danger of overcharging the propulsion motor is a convenient load, unless conditions don't permit it.
> Â
>
>
>
> ________________________________
> From: John Scott <flyscott06@...>
> To: electricboats@yahoogroups.com
> Sent: Thursday, July 25, 2013 4:43 AM
> Subject: Re: [Electric Boats] Multiple source charge controller?
>
>
>
> Â
> This is a great company. Lots of good info
> http://www.mwands.com/ missouri wind and solar. They have the systems you are looking for. Good luck.scotty
> On Jul 24, 2013 11:06 AM, "qgold77" <qgold.77@...> wrote:
>
>
> >Â
> >Hello - an old lurker here, but have a quest I'm sure a wise person in this group can help with. I'm looking for device that will take inputs from multiple power sources such as wind/water/solar/shore power/on board generator etc and control the the charging of a couple of battery banks. Can anyone give me a lead?
> >
> >Thanks - Nick
> >
> >
>
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