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Can I use a C type battery to charge up my capacitor bank using photoflash circuitry to charge up the capacitors faster


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iceng2 years ago

A single cell charges the below capacitor to about 350 vdc to plasminate an xenon gas strobe.

YES, you can do !

CameraFlash.jpg
iceng iceng2 years ago

Right .... you can see the battery holder and strobe wiring.

Miami 1968 (author) 2 years ago

Thanks a lot guys. your comments are most appreciated.

I am an electronics engineer but my area of expertise falls into microprocessors and microcontrollers. When it comes to high voltage I'm lagging behind quite considerably. The only reason I'm interested in photoflash circuitry is that it provides 330v Quite easily and consumes such a little space. As far as I know - which is not a lot - Any alternative method known to me needs main lead power and a lot of hassle. Please enlighten me regarding any other possible solution.

I am going to run the capacitors bank with a photoflash circuitry and measure the charging time. If the charging time remains in an acceptable range (up to five minutes) I won't go through any re-engineering process. If not then I split my capacitors bank in 5 sections and charge each section separately and connect the outputs with individual relays or switches, leading to a final release switch.

Looking forward to your bright insights.

seandogue2 years ago

"Can I use a C type battery to charge up my capacitor bank using photoflash circuitry to charge up the capacitors faster?"

The answer is no. A C-type battery will not "speed up" the charge rate.

As MPilch said, you can use a 1.5V battery toi run the cirucit, but I can tell you quite authoritatively that the battery's capacity isn't gong to affect the speed of charging, simply increase the duration of that charging effort over using a AA or AAA..

Miami 1968 (author)  seandogue2 years ago

So It leaves me no other choice rather than using a number of photoflash circuitries in parallel to achieve that. Shall I use diodes to prevent the feedback current?

Miami 1968 (author)  Miami 19682 years ago

Or better to put it this way. What shall I do to speed up the charging process??!!

Replace your charging circuit with one that utilizes a higher charge voltage.

However, that charger was designed not only to get the batteries charged, but also to do so in a safe manner that doesn't end up lighting the batteries on fire.... Keep that in mind in any re-engineering effort.

Alternatively, although it won't improve charge speed time, you could increase the size of your battery pack to provide more run time between charges with ~relative ease in comparison to redesigning the charging system.

Any 1.5V battery can run the flash circuit. The large the battery the longer it will last.

Miami 1968 (author)  mpilchfamily2 years ago

So it means the larger battery does not necessary reduces the charging time due to the increased current!!!!

A circuit pulls the current it needs. The battery doesn't push current to the circuit. A larger capacity battery like a C just lasts longer than an AA under the same load. If you want to speed up charge times you'll need a larger boost converter than what a camera flash circuit offers.

-max-2 years ago

Yes.