[PSUBS-MAILIST] LED Lights

[via Personal_Submersibles]

Ken,
It's a generous offer for your time. Count me in.
Vance



-----Original Message-----
From: Ken Martindale via Personal_Submersibles <personal_submersibles at psubs.org>
To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org>
Sent: Thu, Jun 18, 2015 9:00 pm
Subject: [PSUBS-MAILIST] LED Lights


Any one there,


I worked at a job where I designed LED drivers. I was looking
at the Bridgelux Varo 29 (BXRC-50C 10K0-L-24) which has a light output of a
little over 10000 lumens. 
I bought one of these but haven’t fired it up, maybe
tomorrow.

I can design the driver to interface with almost any input voltage
such as 10 to 30 volts or 20 to 60 volts, etc.

They make reflectors for this
LED so it would be relatively easy to come up with a number of 10000 lumen
lights for your Subs.

I have some time on my hand and can design the circuitry
to drive any selected LED module. Or LED.

I have the time and some funding to
come up with lights for the subs.

Is anyone interested in this. We could come
up with lights that would only cost the parts.

The first step would be to come
up with a specification that would detail most of PSubs needs. Such as variable
light output (10,000 to 20,000 lumens), over temperature protection, reverse
polarity protection, LED over current protection, EMI, etc.

I would be
interested in doing the design work including PWBs.

What do you guys think?  I
would need help on the mechanical housings.

Cooling is a major concern but
while immersed there’s lots of water. Above water Over temperature protection
would prevent any damage if you left the lights on by accident.

Any interest?
This could be fun. Jon??

The spec would be the first step and then with enough
agreement the design process would start.

Not too interested in doing this
commercially.

For what it’s worth I’m an EE specializing in switch mode power
converters.

Ken
Martindale


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