New 4 Channel Highside driver

UPDATE: Boards are in stock!

UPDATE: Because of problems with customs, and a supplier that got greedy, I now have to buy all components from within the EU. O_o

Unfortunately this has affected the price a little. Price is 60 euros from now on.

As some of you may know, I have been developing a Quad diode driver in co-op with Edison.

Today I have finished testing and fine tuning the prototypes, and will be ready for mass production in about a week.

I present QuadDrive 1:

Attachment 26370

Board is 48x63mm with 4mm mounting holes.

Each channel has its own modulation input. Perfect for mixed 660/640/445 builds.

0-2A analog modulation + 0-0.5A bias for a total of 2.5A per channel.

5-24V Supply voltage

Standby beam suppression for blue LDs. (Can be disabled by jumpers).

Price: 60 Euros


/Thomas

Looking good Badpip!

Sounds great, so in theory, each driver could run 8 blue diodes at 1.25amps each right????

Really nice...how can i get it?

Yes that,s right. better to put them in series tho. You have 12v as input power so 2 diodes on 1 channel is easy;) With a Kit like this you have a complete set to build a
professionals quality Red laser. They are on sale in this thread:

http://www.photonlexicon.com/forums/...ms-New-version.


So we getting there guys not nessesary to buy an expencive Kvant, arctos, RGB lasersystems module anymore now we the DIY combo *retardo

Great news on the driver, congratulations.

Very nice concept driver, but aren't you dissipating allot of heat when driving red diodes on a 12V supply?

for example, if you drive a red 640nm diode @ 300mA, Vop= 2V= 10V over the fet x 0.3A = 3W of heat generated for each fet = 12W of heat for the complete setup. thats allot of heat for 500mW of laser power. or am I seeing it wrong?


The driver I use (also with blue beam, supression) made by a very skilled member of this forum ;) uses a onboard SMPS to set power to the driver just above the Vop of the diode to get a very efficient driver.

It depends how many red diodes you have in series I guess.

Quote:

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Originally Posted by mccarrot

Very nice concept driver, but aren't you dissipating allot of heat when driving red diodes on a 12V supply?

for example, if you drive a red 640nm diode @ 300mA, Vop= 2V= 10V over the fet x 0.3A = 3W of heat generated for each fet = 12W of heat for the complete setup. thats allot of heat for 500mW of laser power. or am I seeing it wrong?


The driver I use (also with blue beam, supression) made by a very skilled member of this forum ;) uses a onboard SMPS to set power to the driver just above the Vop of the diode to get a very efficient driver.

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Quote:

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Originally Posted by dave

It depends how many red diodes you have in series I guess.

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do you run your expensive 640 optnext in series?

I don't see any problems running diodes in series, its a lot safer than parallel IMO