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 Power of Nature
 Solar Power
 Solar switch for tracker
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olddawgsrule
Advanced Member


USA
1434 Posts

Posted - July 09 2017 :  08:52:28  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
I have these solar garden lights around here and wonder if I can use them to trigger a 14.4v motor (cordless drill motor).

Thinking these switches are too low a power (lights run on 3v), yet not sure it matters to them.

Thoughts?

Old in age, not in mind, so
'Teach me something new'!

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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - July 09 2017 :  08:55:02  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
I have a very simple design in mind for the panels (2 15w) running the Soaker Tub pump.

I'll post it as I build.

Old in age, not in mind, so
'Teach me something new'!

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ron_o
Moderator



United Kingdom
1052 Posts

Posted - July 14 2017 :  16:26:44  Show Profile Send ron_o a Private Message  Reply with Quote
Hi ODR
A lot depends upon what you find when you open the lamp up
If the circuit is made from discrete components you have a good
chance but if it's an ic ( normally 4 'legs' ) it can still be done but
not easily and finally if it's a blob of resin covering a board mounted
Ic then forgot it
The solar panel on the garden lamp could be used to work a relay
via a transistor ( power for transistor and relay provided via drill battery )
OR
Use 12 volt relay coil connected across one of your 15 watt panels
Then use the relay contacts to control your other circuit
You will of course have to have a blocking diode in the relay coil circuit to
prevent the charge battery powering the relay when it dark

ron
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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - July 14 2017 :  17:33:27  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
RonO, I do like it when you show up! You once again sparked a thought.

All I need is for the switch to turn on the motor (not power it). If the little panel/switch in there works (think I have a few small 3v panels around here), Then all I really need is for that panel/switch set to see the sunshine, activate and turn on the motor, which would rotate the panels till there is no sun on the panel/switch.

Prefect!

Assumption again being just reverse the wiring so it closes with sun vs. openning with sun. Did this with another solar light by accident.. Scratched my head for a moment and went.. Dumb A$$.. reverse the wires... LOL

Thanks Buddy! You do things that you don't even realize when you do! Or you do and just waking me up.. LOL





Old in age, not in mind, so
'Teach me something new'!

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ron_o
Moderator



United Kingdom
1052 Posts

Posted - July 14 2017 :  18:48:52  Show Profile Send ron_o a Private Message  Reply with Quote
Hi ODR
I'm always hovering around the forum , keeping an eye on what's going on

Hopefully I have been of assistance

ron
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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - July 16 2017 :  13:53:16  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote

That should be the sensor I'm looking for... but it's not wired??



That makes no sense at all. Is it fake?? That's it under the Glob..


Circuit board looks good!

Only disconnect I found was to the battery. Reason it didn't work any longer.

Old in age, not in mind, so
'Teach me something new'!


Edited by - olddawgsrule on July 16 2017 13:54:56
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ron_o
Moderator



United Kingdom
1052 Posts

Posted - July 16 2017 :  19:25:16  Show Profile Send ron_o a Private Message  Reply with Quote
Hi ODR
It's not a fake as such......it's just been made cheaper
The solar panel itself is used to both generate power
and to detect darkness ( I basically hinted at this in my previous post )
So how's it done ..... simple answer go to the Talking Electronics website
and search for solar lights and all will be revealed #128512;Still hovering
ron
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ron_o
Moderator



United Kingdom
1052 Posts

Posted - July 16 2017 :  19:29:12  Show Profile Send ron_o a Private Message  Reply with Quote
The number was ment to be a smiley face !
iPhone or forum error
ron
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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - July 17 2017 :  17:50:29  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
Oh.. That's what you meant! Man I a slow learner at times..


quote:
Originally posted by ron_o

Hi ODR
It's not a fake as such......it's just been made cheaper
The solar panel itself is used to both generate power
and to detect darkness ( I basically hinted at this in my previous post )
So how's it done ..... simple answer go to the Talking Electronics website
and search for solar lights and all will be revealed #128512;Still hovering
ron



Old in age, not in mind, so
'Teach me something new'!

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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - July 17 2017 :  18:00:31  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
So, by that what I'm looking for is a low voltage switch that a small panel if open when active and close when not.

Being the unknowing one.. What would that be called?


Old in age, not in mind, so
'Teach me something new'!

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ron_o
Moderator



United Kingdom
1052 Posts

Posted - July 17 2017 :  18:28:42  Show Profile Send ron_o a Private Message  Reply with Quote
Hi ODR
You need a light activated switch
Simplest one possible.......
If you have a few ( 3 or more ) of those solar lights , remove the solar cells
from them and then connect them in series so as to increase total output voltage
Then connect them to a small relay whose coil voltage is a volt or so below the
panels output
To prevent relay chatter also connect a 4700 uF electrolytic cap across the relays
coil ( observe polarity ! )
Use the relay contacts to control the switching of the 14 volt battery
ron
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olddawgsrule
Advanced Member



USA
1434 Posts

Posted - July 18 2017 :  16:00:04  Show Profile  Visit olddawgsrule's Homepage Send olddawgsrule a Private Message  Reply with Quote
There we go! Thank you.

Old in age, not in mind, so
'Teach me something new'!

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