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#Post#: 5906--------------------------------------------------
Re: Emergency Light
By: barbados Date: April 3, 2015, 5:11 pm
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@Ness,
I think i have it.
I understand the lamp on state quite well.
My thought on the charging state is that the small current to
Q1 turns it on a little, enough that current will flow across
Q1 with the effect being that there is no voltage build up on
the mosfet gate, thus the mosfet is not turned on and the lamp
is not turned on.
Am i correct.
Best
Andre
#Post#: 5907--------------------------------------------------
Re: Emergency Light
By: nessprojects Date: April 4, 2015, 4:43 pm
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@barbados
Yep....I think you have now got the concept of the circuit. :)
Just a side note on R3.....I think I put it there to stop any
small stray voltages that could be picked up from radio
interference during the dark hours......On my unit I had fitted
a 100k resistor directly across the solar panel so I do advise
fitting R3.....It will do the same job.
#Post#: 5909--------------------------------------------------
Re: Emergency Light
By: barbados Date: April 6, 2015, 10:58 pm
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Ness,
Much thanks I will be trying to see how i can get this circuit
to work with the LJL.
On another note i have my LJL up and working.
The intention now is to setup lights in my backyard for
security.
I am hoping my next postings will be to present my progress.
Best
Andre
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