flash circuit

I wanted to make something like this :

but were i live disposable cameras aren't very used so i can't get one.

The question is, how can i build that little boost converter circuit that you find in disposable from scratch ?

You can use batteries to power a CCFL inverter drive the bulb.

Almost all of those old, cheap film cameras (which people just throw away these days) have working flash circuits, just like in the disposable cameras. You should be able to get one for free if you ask around, or check the flea market and second hand shops.

jecs:
I wanted to make something like this :
http://www.instructables.com/id/Jar-Lantern/

but were i live disposable cameras aren't very used so i can't get one.

The question is, how can i build that little boost converter circuit that you find in disposable from scratch ?

Im currently building one based on the zxsc440' digikey have the required transformer, circuit is in the datasheet for the chip.
This has the possibility ov adjustable output voltage.
Chip is hard to find now.

Digikey has the Lt3468 stocked which is a simpler circuit, but not tried it yet.

The circuit in disposable flash is much simpler, only the invertor is needed, normally one transistor and a transformer.
The required transformer however is likely to be hard to find.
The circuits for the disposable cemeras can be found on the net.

You can use batteries to power a CCFL inverter drive the bulb.

How should i connect the battery ?

The circuits for the disposable cemeras can be found on the net.

I've tried to search and i can't find anything =(.

http://www.repairfaq.org/REPAIR/F_strbfaq.html

http://www.repairfaq.org/REPAIR/kflash.gif

Can you specify the values of T1, T2. And what is S1, S2 And IL1.
Btw why there's so many components there and in the circuits that i see over the internet there are only 3-5.

I still would like an answer to this:

You can use batteries to power a CCFL inverter drive the bulb.

Thank you for all the answers the you are giving :wink:

jecs:

You can use batteries to power a CCFL inverter drive the bulb.

How should i connect the battery ?

Here is a typical CCFL inverter, readily available on ebay.


The red and black wire labeled PRI is where you connect the battery. This particular CCFL inverter can take input voltage range from 8-16V, the LOAD:CCFL end labeled SEC puts out high voltage AC which you can use to drive your bulb. The brightness of your bulb will be dependent on the CCFL output rating, in this example you can use this CCFL inverter to drive any light bulb less than 6W.

WARNING: caution must be taken when handling the CCFL as this inverter can put out 900V AC
From spec: Output = 900V 25KHz

Why bother..

Two 3watt leds or 1 10watt would give the same light and last longer as well as not expose you to high voltages to power the cfl.

jecs:

http://www.repairfaq.org/REPAIR/kflash.gif

Can you specify the values of T1, T2. And what is S1, S2 And IL1.
Btw why there's so many components there and in the circuits that i see over the internet there are only 3-5.

T2 is a trigger coil, similar can be found on ebay
Not needed for your applicarion

T1 is a custom invertor transformer, i have seen them advertised in the past by chinese manufacurers
S1 s2 are just switches
Il1 is a neon

You dont need most of those components for your use.

Not worth building imo if you cant get a camera.

Velleman or maplin used to do diy kits for strobe and flourescent drivers.

Electronics mags used to have circuits if you can find old ones.