Compact fluorescent lamp in 12V diagram

[WELLWELL89]

NS,
I AM LOOKING FOR SHEMA WHERE A SYSTEM OR A LAMP IS CONNECTED TO 12 V WHEN IT DOES NOT WORK ANOTHER LAMP (EMERGENCY) TAKE THE RELAY AUTOMATICALLY
PLEASE THANK YOU

[Christophe]

Can you edit your message and rewrite it in SMALL Please...
Otherwise I lock the subject ...

[WELLWELL89]

sorry sometimes my keyboard hangs on the capital letter but it is a swell
sorry again

[bobono]

The only possibility to be on it is a detection of lighting or brightness (We can tinker with the photo electric cells that we find on oil boilers or small specific sensor sold on connad.fr).

If no lighting switches to lighting 220.

[Alain G]

Wellwell

Are you talking about a power cut or if the lamp burns?

If it is a power cut, use a small 12 volt relay with normally closed contact otherwise you can use this small NC relay using the coil in series with the lamp which you put a resistance in parallel with the coil that keeps your relay active as long as the light is on.

[dedeleco]

Otio sells a 220V lamp that lights up in the dark and just put it next to the lamp that lights it and if it goes out by failure the otio lamp seeing the darkness lights up to replace it .
As the interior of this lamp operates at low voltage with certainty, it is sufficient to dismantle it, disconnect the rudimentary 220V power supply (some capacities and diodes and resistances) and supply it with the correct voltage from 12V, (resistance and regulator 5V or 9V voltage measured before dismantling the 220V) to see it working at 12V.
http://www.otio.fr/otio/_fr/produits/fi ... s_famille=
Another solution is to use a switch with motion detector which always has an adjustable night light detector which can therefore also be set to 12V and serve as a night light detector by clamping the pyroelectric motion detector at the right voltage so that it always believes to detect a movement.
I used this system as a cheap motion detector (10 €)
for alarm!

[dedeleco]

The kit solution
http://www.conrad.fr/kit_interrupteur_c ... 248_314672
This avoids mounting the photoresistor, the transistor and the relay!
It will turn on the emergency lamp if there is no more lamp light!

[bobono]

Sympat tone inter twilight but 15 € all the same.

I like Alain's solution a relay in series with the lamp in 12 volts
If there is current flow then the relay is active.
If relay active no lighting 220 volts. If relay inactive lighting 220 v

I managed to operate a standard 40 watt 1 meter neon tube

50 with electronics from a 15 watt compact fluorescent lamp.

TO YOU

[Alain G]

Sympat tone inter twilight but 15 € all the same.

I like Alain's solution a relay in series with the lamp in 12 volts
If there is current flow then the relay is active.
If relay active no lighting 220 volts. If relay inactive lighting 220 v

I managed to operate a standard 40 watt 1 meter neon tube

50 with electronics from a 15 watt compact fluorescent lamp.

TO YOU

Hello Bobono!

Of course this solution applies to a handyman, otherwise the ready-made solution from Dedeleco is perfectly suitable!

It is quite possible that the electronic ballast of a 15 watt works on a 40 watt, monitors if the parts do not overheat!

Good DIY!

[dedeleco]

For a low price it is possible to mount the Conrad assembly which turns off when the light controls the relay, a photoresistor LDR at 0,80 € with 10KOhms in parallel
http://www.conrad.fr/photoresistances_p ... 215916_FAS
A cheap Darlington transistor (large current amplification factor) TIP122 at € 0,75 with the LDR between base and emitter, 200KOhms between base and power supply to be adjusted (greater than 1000 times the relay resistance) and the relay with its diode protection between collector and power supply.
http://www.conrad.fr/transistor_serie_s ... 223601_FAS
a resistor to be adjusted (or potentiometer) between 30KOhms and 200KOhms (€ 0,3 for 3 resistors) adjusting the threshold brightness level with the simple mounting given on
http://mpicartier.free.fr/ancien_site/e ... stance.htm
http://www.ac-nancy-metz.fr/pres-etab/V ... lairag.htm
by adding a basic diode 1N4001 or 1N4002 (0,1 €) in the opposite direction in parallel on the relay (to avoid killing the transistor by the overvoltage of the relay choke!)
http://www.conrad.fr/diode_de_redressem ... 127258_FAS
See the assembly by JP a little complicated but basic reverse because lights up in the light on
http://www.ilephysique.net/forum-sujet-235579.html
(unnecessarily smoky!)
Finally to try to take a low voltage 3V and measure the voltages to see if it works in voltage before putting 12V ball in the lead and broiling if there is an error !!
But it is better to understand the basics a bit !!
Conrad is not the cheapest often, there is Selectronic.fr, comelec.fr, radiospares and others.
Other two-state mounting
http://schema-electronique.blogspot.com ... tance.html
http://pagesperso-orange.fr/fabrice.sin ... atique.pdf