Lavadrive2 driver kits (CLOSED)

• Apr 21, 2008

• #1

drlava

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Hi everyone.  Available are about 12 lavadrive2 kits for making a highly efficient switching DC-DC buck OR boost (depending on what's needed) regulator with an input voltage range 2.4-9V, constant current regulation over the entire battery charge range and current adjustong pot. These units fit great in the Kryton barrel and would easily fit in many other laser projects.  They include about 13 smt parts including 3 ICs (one of which is a difficult-to solder DFN-8 package) and a printed circuit board.  Skill level required for completing these is high, and a very fine solder pencil tip is reccommended.  Circuit boasts a start up ramp and start up delay of about 1 second to full power.

Price is $14.50 + $2 Ship

Adjustable ranges:
Choose between a blu-ray current range (about 30-150mA)
and Red Burner range (about 100 to 500mA)


PM me your email address and I will send a GCO Invoice. thanks!

 

• Apr 21, 2008

• #2

jayrob

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Re: Lavadrive2 driver kits for Kenbarrels and more

Awesome! PM sent!
Jay

 

• Apr 21, 2008

• #3

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jake21

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Re: Lavadrive2 driver kits for Kenbarrels and more

only if i new how to solder it all up lol

 

• Apr 21, 2008

• #4

jayrob

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Re: Lavadrive2 driver kits for Kenbarrels and more

drlava, are you including any instructions or details for building the drivers?
Thanks,
Jay

 

• Apr 21, 2008

• #5

SenKat_Stonetek

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Re: Lavadrive2 driver kits for Kenbarrels and more

PM sent for four kits - thanks !

 

• Apr 21, 2008

• #6

drlava

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Re: Lavadrive2 driver kits for Kenbarrels and more

jayrob said:

drlava, are you including any instructions or details for building the drivers?
Thanks,
Jay

Click to expand...

Hi, yes there will be instructions for component placement, testing and operation, and a photo of a completed unit. You should have solder and a tin of flux, tweezers, fine tipped iron, flux remover, magnifying glass (only needed for the one chip), multimeter, wire strippers, a steady hand and patience.

 

• Apr 21, 2008

• #7

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toked323

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Re: Lavadrive2 driver kits for Kenbarrels and more

Hey there drlava, would this be easy to do reflow?

 

• Apr 21, 2008

• #8

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toked323

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Re: Lavadrive2 driver kits for Kenbarrels and more

Oh and can you post a picture, and what are the dimensions?

 

• Apr 22, 2008

• #9

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rhildinger

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Re: Lavadrive2 driver kits for Kenbarrels and more

PM sent for 2 kits... Thanks!

 

• Apr 22, 2008

• #10

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zerafiel

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Re: Lavadrive2 driver kits for Kenbarrels and more

Nice. I'd jump on this if I could solder this up well enough. Or you could offer an assembled version for a small fee. These drivers are supposed to be the new option on the Kryton V2 right?

 

• Apr 22, 2008

• #11

drlava

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Re: Lavadrive2 driver kits for Kenbarrels and more

Hi toked. Yes, if you can do it reflow works well with this board, it's partially how I built the first few. Just don't overheat the ICs; follow industry standard reflow times and temperatures.

The dimensions of this board are about 5/8 by 7/8

here's a pic of a somewhat sloppy build where I didn't care about having straight resistors

 

• Apr 22, 2008

• #12

drlava

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Re: Lavadrive2 driver kits for Kenbarrels and more

xarylx said:

Nice. I'd jump on this if I could solder this up well enough. Or you could offer an assembled version for a small fee. These drivers are supposed to be the new option on the Kryton V2 right?

Click to expand...

Yes, a version of the driver that is built on a factory board will be available for the Kryton V2. It however isn't compatible with the kryton V1.

Right now I just don't have the time to assemble these that's why they are being offered as kits, sorry!

 

• Apr 22, 2008

• #13

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toked323

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Re: Lavadrive2 driver kits for Kenbarrels and more

what would you recomend as the highest temp for reflow?

 

• Apr 22, 2008

• #14

drlava

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Re: Lavadrive2 driver kits for Kenbarrels and more

toked323 said:

what would you recomend as the highest temp for reflow?

Click to expand...

Here's a pretty good DIY article with reflow process chart:

http://www.circuitcellar.com/library/print/0704/Lacoste_168/index.htm

The highest temp they say is the solder melting pont + 20C or 250C.

 

• Apr 22, 2008

• #15

SenKat_Stonetek

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Re: Lavadrive2 driver kits for Kenbarrels and more

So, the "Standard" toaster oven will NOT suffice ! Fleabay offers some pretty good deals on rework stations for fairly cheap. Those can be a decent substitute for a steady hand on occasion

 

• Apr 22, 2008

• #16

SenKat_Stonetek

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Re: Lavadrive2 driver kits for Kenbarrels and more

Dr. Lava - when will you be letting folks know if they made the cutoff for these FABULOUS kits of yours ? (nice suck up, eh ?) ;D