Presale: The Ben Boost

My drivers arrived yesterday and they look great. High quality work as always. After seeing those tiny parts I am so glad I paid the extra over the eventual DIY kit to not have to try and solder that by hand. *sigh* Now I have a Saik kit with a 22600, dual drivers, and no diode to put in it.

Two fit nicely inside a guidesman.

waiting for mine... stuck in boofu Opaka FL.

I have received mine in Belgium ! Thanks :gj:

At this point we should make a new thread about the data on these... I'm test using purist tester reading MB and a Ben's drive set to 1.2 and good cooling and only stable for 2sec. On my phone for now soooo I don't know. I did bump the voltage up and while it did hold steady I don't hold high hope for that setting

jander6442 said:

At this point we should make a new thread about the data on these... I'm test using purist tester reading MB and a Ben's drive set to 1.2 and good cooling and only stable for 2sec. On my phone for now soooo I don't know. I did bump the voltage up and while it did hold steady I don't hold high hope for that setting

Click to expand...

What was your input voltage and current supply?

Bench supply at 2.2 2.3A and 4.5 to 5.0V still posting from phone

jander6442 said:

Bench supply at 2.2 2.3A and 4.5 to 5.0V still posting from phone

Click to expand...

That's probably your problem. If your voltage was 4.5 to 5V, then you're potentially supplying more than the Vf of the output. The driver can't deal with that.

If your driver is set at 1.2A, and you're planning to drive a 445 at that, then give the driver a realistic input - say 3.8V and 3A.

That's why I was saying you could parallel 3 drivers instead of 2 to reduce the heat output of the drivers.

rhd said:

That's probably your problem. If your voltage was 4.5 to 5V, then you're potentially supplying more than the Vf of the output. The driver can't deal with that.

If your driver is set at 1.2A, and you're planning to drive a 445 at that, then give the driver a realistic input - say 3.8V and 3A.

Click to expand...

I've gotten that thru ramping up from 3.0 4.7 even took it to 5.2V on up with cooling cycles in-between. I'll post video in the am. Using the red switched over very stable though.

I cant wait to get mine! Eh!

jander6442 said:

I've gotten that thru ramping up from 3.0 4.7 even took it to 5.2V on up with cooling cycles in-between. I'll post video in the am. Using the red switched over very stable though.

Click to expand...

I'm surprised. I've had luck at 1.2A.

Though I think I've mentioned elsewhere in this thread - I really like these best paralleled for 1.8, or on their own for around 1A.

Good consistent driving even as input voltage sags.

How soon will these be available? I want 10 asap!

Are you out of boards moh? Or just don't have the time?

Here is a quik vid thrown together when I first toyed around with the benboost.

I was in a rush trying to get other things done so nothing is really ideal.:shhh:


Here is another vid this time hooked to a A140:beer:


I later ran this driver with the same diode at 4.5V/2.1A and did a loop of thermal paste around the bottom parameter of the driver attached to the aluminum stock and the DDM read 1.125A and climbed over some time 2-3 minutes (yea it was warm) to a 1.295A and stayed there for at least 5 min run time... soo my conclusion is it will prove stable at the high end only with massive cooling effort.

Now it might be the PERFECT 12x 405nm driver for the money, but for custom 445nm as we know it, thats up to you:beer:. Paralleling 2 of them to get that niche 1.8 or even 2.0A or above:evil: will work only in a larger host with the foremost concern in the pre-build phases for cooling. So what you have to ask yourself is the extra .400mA worth all the heat and loss of space, I believe the builder will have to decide and the more options the better. That being said if they stayed in the $10.00 range:bowdown: thats great for us:beer: I just hope they prove to be more abundant than the elusive flexdrive:undecided:. I agree that you don't always have to run the 445s to the max, in that case use the ben driver it works great under 1A with obvious needed heatsinking (some on the IC chip some for the entire driver) this will negate smaller builds, but as hobbist these are the things that we do... push the imagination... this driver is another great tool for such purposes.:wave:

I would like to thank those members who made this come to fruitition all the hard work and brilliant brainstorming is very appreciated.:thanks:

Anyone find out if these drivers can be run in dual linear setup drawing from a single 18650 at high currents?

I'm sure they could depending on the brand... as we know some are built better than others. I think duration would be the issue as I will be finding this out also if I can get time.