bowt1eguy01
New Member
I would first like to say that I am not versed in most of anything on this site. So please assume your explaining something to a 5 yr old. lol
I have a project I'm currenty working on with someone who is qualified and versed in electronic circuits. One of my problems is he is doing this for free for me on his spare time, so naturally it's the path of least resistance in trying to solve design problems. I'm trying to contribute as much as possible so I figured exploring options here to present to him would be the best way to go.
I'm trying to make a transformer-less EL driver circuit that runs of a 3v battery. Were having performance issues trying to power just 10 inches of wire. The wire is dim at best. He used a setup that he said was meant to power a EL panel, due to it being off the shelf components. Below is an excerpt from an email he sent that illustrates the issue:
"Vp-p is the peak to peak voltage difference across the el wire. Remember the discussion on H bridge circuits? H bridges switch both sides of the wire, effectively doubling the p-p voltage. So, to find a driver capable of 300Vp-p, it has to incorporate a high voltage switcher capable of generating 150VDC, plus an H bridge driver for the EL that will run at 2 KHz.
The difference between what makes an EL panel “happy” and what best drives EL wire is the problem I kept running into. The chips available are aimed at el panels, and the one I tried was about the only one that would work at battery levels, and could have the el drive frequency adjusted up to el wire frequencies. If the high voltage generator was adjustable I think it would work, but it’s fixed at around 90-95V max.
Generating the high voltage from battery levels is the biggest challenge. Circuits for generating a camera flash probably come closest, but they still aren’t generally meant to maintain high voltage for a 2KHz repetition rate"
I found this circuit here https://www.google.com/url?sa=t&sou...l7C0CA&usg=AFQjCNEodByKBHkDYTQVjpSS4vkwHe-WOQ and was curious if that solves my problem, and if not is there any ideas on how?
Thanks
I have a project I'm currenty working on with someone who is qualified and versed in electronic circuits. One of my problems is he is doing this for free for me on his spare time, so naturally it's the path of least resistance in trying to solve design problems. I'm trying to contribute as much as possible so I figured exploring options here to present to him would be the best way to go.
I'm trying to make a transformer-less EL driver circuit that runs of a 3v battery. Were having performance issues trying to power just 10 inches of wire. The wire is dim at best. He used a setup that he said was meant to power a EL panel, due to it being off the shelf components. Below is an excerpt from an email he sent that illustrates the issue:
"Vp-p is the peak to peak voltage difference across the el wire. Remember the discussion on H bridge circuits? H bridges switch both sides of the wire, effectively doubling the p-p voltage. So, to find a driver capable of 300Vp-p, it has to incorporate a high voltage switcher capable of generating 150VDC, plus an H bridge driver for the EL that will run at 2 KHz.
The difference between what makes an EL panel “happy” and what best drives EL wire is the problem I kept running into. The chips available are aimed at el panels, and the one I tried was about the only one that would work at battery levels, and could have the el drive frequency adjusted up to el wire frequencies. If the high voltage generator was adjustable I think it would work, but it’s fixed at around 90-95V max.
Generating the high voltage from battery levels is the biggest challenge. Circuits for generating a camera flash probably come closest, but they still aren’t generally meant to maintain high voltage for a 2KHz repetition rate"
I found this circuit here https://www.google.com/url?sa=t&sou...l7C0CA&usg=AFQjCNEodByKBHkDYTQVjpSS4vkwHe-WOQ and was curious if that solves my problem, and if not is there any ideas on how?
Thanks