LebGeeks

J4D

Member

The black widow

this thing should stay active for at least a decade with not one single recharge ! It charges up during the day using the built in Solar cell and flashes its Blue LED into the night, all automatic .

Last edited by jadberro (July 24 2010)

Joe

Member

Re: The black widow

Can you turn it off at night ?

J4D

Member

Re: The black widow

why should i, it does not turn on but at night, besides its not very disturbing, ill try to sleep while its flashing tonight :) its a very calm flash btw, fades out .

Joe

Member

Re: The black widow

It looks super cool btw.

Can it flash for a whole night? What about winters where days are shorter and nights are longer? :)

Ayman

Member

Re: The black widow

Very nice but the name sounds very pessimistic to me  Anyways, well done and keep up the good work :)

BashLogic

Member

Re: The black widow

@jadberro,

it is things like this that nourishes productivity and creativity!
not every creation needs to have the marks of epical achievements.
of the epical ones, many are based and composed of smaller achievements.
it is those smaller ones that make things intriguing!

Keep up the creative work, regardless of what who says or how simple it is.
all there are building blocks towards your ultimate achievement!

arithma

Member

Re: The black widow

Does it have a battery or is it just capacitor based?
Is it your genuine design or one off the net?
Do you have any idea about the charge/discharge rate (and how much energy remains inside the storage at all times).

Those are the design questions I'd want to think about once I make such an inception. Anyway, you seem to be having increased dexterity recently.. Keep it up.

J4D

Member

Re: The black widow

Thanks ayman, and rahmu :)

It looks super cool btw.

Can it flash for a whole night? What about winters where days are shorter and nights are longer? :)

yes it does, and more ! the led is rated at 20milliamps and Ive got 2 amps of battery power . The Led flashes and is not lit all the time. like i said i expect this to keep on running for about 10 years if it has sufficient daylight. 6-7 hours of good daylight should be sufficient to charge the battery, and it does not go on until its mainly dark outside, and it still charges at low light :)

Ayman

Member

Re: The black widow

What made you choose this name? I think it deserves a much better/optimistic name :)

J4D

Member

Re: The black widow

Thanks Bash :)

@artithma: Nope its not my original circuit here since its very advanced and quite genius ! this is achieved with minimal powerless . if i was to make this it wouldn't last 3 hours  . the flashing is based on a capacitor that charges and discharges . I should take some measuring , it would be cool to find out i will see how much juice is left in the batts after a full night .

J4D

Member

Re: The black widow

New one exists now, uses wind power (not fully optimized yet, rotor is reaching "terminal velocity" too soon )
i will have to redesign the rotor .

Raficoo

Member

Re: The black widow

Quite Impressive, you're quite the Engineer

so..... how's that Portal Gun coming along again?....

rolf

Member

Re: The black widow

Quite cool.
But is it useful? How powerful is the LED? It reminded me of the lights that they put on top of skyscrapers to warn aircrafts. I'm guessing the led is not powerful enough (and it should flash not fade for this purpose)... but maybe with some improvement it can :). It can also be used on top of mountain summits and other places where there is no power available.
Also it looks a bit crude to market (you need a design that hides the components)

Last edited by rolf (July 25 2010)

J4D

Member

Re: The black widow

Its only for show :) nothing commercial here. But i think its a cool Gift .The Led is quite powerful taking into consideration its tiny size :)

arithma

Member

Re: The black widow

Ok, now for your more practical project: An adapter/battery for routers/switches/.. and all that is DC? Without using a very inefficient UPS for those purposes..

J4D

Member

Re: The black widow

Ok, now for your more practical project: An adapter/battery for routers/switches/.. and all that is DC? Without using a very inefficient UPS for those purposes..

as in a small system that takes over power for a router for about 5 minutes or so until the power goes back ? well that's nice, and its available in the market, but a cool project to do, will see about that ! :) practically needs nothing, some batteries to mach the power needed by the router, a huge capacitor to create the uninterrupted power supply effect and some switching circuitry, that's it !

Last edited by jadberro (July 25 2010)

Ayman

Member

Re: The black widow

Ok, now for your more practical project: An adapter/battery for routers/switches/.. and all that is DC? Without using a very inefficient UPS for those purposes..

Very good idea, really worth doing. (y)

as in a small system that takes over power for a router for about 5 minutes or so until the power goes back ? well that's nice, and its available in the market, but a cool project to do, will see about that ! :) practically needs nothing some batteries to mach the power needed by the router a huge capacitor to create the uninterrupted power supply effect, some switching circuitry and that's it !

Yeah man please do it, I would be the 1st one to buy it and use it for my router :)

Last edited by Ayman (July 25 2010)

J4D

Member

Re: The black widow

Quite Impressive, you're quite the Engineer

so..... how's that Portal Gun coming along again?....

Thanks Raficoo :)

@ayman, i will look into it :)

Flakk

Member

Re: The black widow

Impressive, very well done.
Last year I built a 12v  Solar cell charger but didn't work as intended to, i initially dumped it. Gonna do something similar this time.

Is it possible you pm me the schematics for the solar cell and wind powered generator ?
If the schematics are yours i will definitely credit you!

Last edited by Flakk (July 26 2010)

J4D

Member

Re: The black widow

Do you want to do the exact same thing ? Or do you intend to do a solar charger out of the circuit ?! Perhaps i can help you realize what you really have in mind ?!

Flakk

Member

Re: The black widow

I want to build a solar charger out of the same circuit.  But i wanted to upgrade on that too.

I was building this http://www.solorb.com/elect/solarcirc/a … index.html  an AA charger.
but i wanted a higher power charger for 12v and 2.16a (they peak at 15v) batteries.

Last edited by Flakk (July 26 2010)

J4D

Member

Re: The black widow

The circuit im using is not good for you at all, here is a gr8 circuit that does just what you want . practically its an overcharge protector .
http://ghurd.info/index.html

Last edited by jadberro (July 26 2010)

Flakk

Member

Re: The black widow

Much appreciated Jad, Thanks!