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Light Dependant Resistor

I've just pulled a solar garden light apart and the LDR is connected
to the little LED board with single wires shrouded in a loose cloth
type of insulation. I want to separate the LEDs from the solar panel.
The LEDs being inside the house, and the PV panel including LDR being
outside. I was going to connect the two with a length of figure 8
cable through a small hole in the window frame. Will this be a
problem? Or does the LDR have a specfic connection need?
TIA, jack
 
E

ehsjr

Jan 1, 1970
0
I've just pulled a solar garden light apart and the LDR is connected
to the little LED board with single wires shrouded in a loose cloth
type of insulation. I want to separate the LEDs from the solar panel.
The LEDs being inside the house, and the PV panel including LDR being
outside. I was going to connect the two with a length of figure 8
cable through a small hole in the window frame. Will this be a
problem? Or does the LDR have a specfic connection need?
TIA, jack

From your description, you won't be disturbing the
LDR wiring - just extending the LED connection. That
will work fine.

Ed
 
From your description, you won't be disturbing the
LDR wiring - just extending the LED connection. That
will work fine.

Thanks Ed, my description must be poorly.
I want to extend the wiring of both. The LEDs must be inside the
house, and the PV panel and LDR outside for the sunlight/ambient
light.
The extension will hopefully be around 2 or 3 feet, and I have some
1mm^2 figure 8 if that will be suitable, if not grossly
over-engineered :)
What I want to know is if there is something special about the LDR
wiring. Why the baggy pyjamas? Thanks, jack
 
C

cdd

Jan 1, 1970
0
Thanks Ed, my description must be poorly.
I want to extend the wiring of both. The LEDs must be inside the
house, and the PV panel and LDR outside for the sunlight/ambient
light.
The extension will hopefully be around 2 or 3 feet, and I have some
1mm^2 figure 8 if that will be suitable, if not grossly
over-engineered :)
What I want to know is if there is something special about the LDR
wiring. Why the baggy pyjamas? Thanks, jack

May not have anything to do with your application but I use a lot of
different light dependent resistors on
the gun burners I work on at work-(heaters used for -grain dyers/
houses-small flame throwers etc etc) I
have found that extending the LED will be no problem as long as you
use the right AWG wiring size
but the LDR is sometimes a little difficult as this is susceptible to
induced resistance by small wiring
diameter and outside influences like eddy currents from other cables
if near the cable running the LDR.
Sometimes the power supply wire running to the LDR is resistor wire it
self -up to 1k ohm but this is
not the norm. I think it should be ok but if it don't work try using a
shielded cable to connect the LDR.
remember there is only a couple of milliamps running through this part
of the circuit
 
E

ehsjr

Jan 1, 1970
0
Thanks Ed, my description must be poorly.
I want to extend the wiring of both. The LEDs must be inside the
house, and the PV panel and LDR outside for the sunlight/ambient
light.
The extension will hopefully be around 2 or 3 feet, and I have some
1mm^2 figure 8 if that will be suitable, if not grossly
over-engineered :)
What I want to know is if there is something special about the LDR
wiring. Why the baggy pyjamas? Thanks, jack

You don't need to disturb the LDR. Unsolder the LEDs
from the board. Put wires in the place the LEDs were,
noting polarity. Bring the other end of the wires
to the place where you want the LEDs. Solder the LEDs
to a new PC board like this one:
http://www.mpja.com/productview.asp?product=15918+PB

If you must move the LDR, there is nothing special
about the wiring.

Ed
 
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