MCP73831 Solar charger with load sharing

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MCP73831 Solar charger with load sharing

Postby igonine » Wed Oct 22, 2014 5:14 pm

Hi:

I want to build this circuit, but instead of powering it via USB or AC adapter, i intend to use a 5v solar cell if it is possible.
My only concern is how the solar panel manages the current. Does is works like a regular voltage source, and only supplies the current that the system requires or it may send unwanted excess current and needs to be limited?

The project is a automated watering system. During the day it will power the system and charge the battery at the same time, and by night the battery will power the system.
The circuit for powering and charging is this:
http://blog.zakkemble.co.uk/a-lithium-b ... d-sharing/

Will it be safe to use the solar cell with this circuit? The maximum output of the sollar cell is 280mA.

Thanks
João Ferreira
igonine
 
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Re: MCP73831 Solar charger with load sharing

Postby homesolarcompanies » Fri Jan 12, 2018 10:43 am

igonine wrote:Hi:

I want to build this circuit, but instead of powering it via USB or AC adapter, i intend to use a 5v solar cell if it is possible.
My only concern is how the home solar panel manages the current. Does is works like a regular voltage source, and only supplies the current that the system requires or it may send unwanted excess current and needs to be limited?

The project is a automated watering system. During the day it will power the system and charge the battery at the same time, and by night the battery will power the system.
The circuit for powering and charging is this:
http://blog.zakkemble.co.uk/a-lithium-b ... d-sharing/

Will it be safe to use the solar cell with this circuit? The maximum output of the solar cell is 280mA.

Thanks
João Ferreira

ts like you learn my thoughts! You seem to know a lot about this, like you wrote the e book in it or something.I feel that you can do with some percent to drive the message home a bit, however instead of that, this is wonderful blog.A fantastic read. I will certainly be back.
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Re: MCP73831 Solar charger with load sharing

Postby sarayu » Thu May 17, 2018 4:37 am

Make sure your circuit can run on the full voltage range of the battery
sarayu
 
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Re: MCP73831 Solar charger with load sharing

Postby Shilden_72 » Tue May 29, 2018 1:52 pm

Hello everyone,

I'm really interested by that kind of circuit as well. I was planning to buy a house and make it as solar-powered as possible. So far, what I think can be linked to a solar power supply would be the watering system, the cleaning pump of the swimming pool, the window blinds (with a back-up hand crank to open/close them if needed), the air conditioning and the hot water tank. These are mostly comfort-related things, I plan to keep key elements like lighting, kitchen appliances, the wifi router and refrigerator plugged to the main electricity supply, in order to minimise risks.
This is the house I've been planning to buy : https://tranio.com/greece/adt/1685878/. The garden would be, I think, large enough to put extra solar cells if there isn't enough space on the roof. I'm planning to be there mostly from late May to early October, so sunlight in Greece in summer won't be a concern, there will be more than enough.

Do you think that my plan is realistic? Do you think that solar cells able to power a watering system for the trees and (yet to be installed) vegetable garden are able to provide enough power for the air conditioning or hot water tank? Won't the salt-charged air from the sea or the heat damage the cells, their cables and other installations?

Thanks a lot!
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Re: MCP73831 Solar charger with load sharing

Postby BeckySpencer » Wed Oct 10, 2018 1:37 pm

solar system is the best one other batteries and you want to charge with load sharing is this possible but this is very hard method but you can try it :roll:
Use to SMS gateway service for your own business!
BeckySpencer
 
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