Dual RED Driver questions

mickatcol · 10-11-2010, 07:14 PM

Hi all.

I am building my first dual red laser.
I have a Die4drive Driver and using analogue modulation.
My required output current is 350mA on each diode.

I have found some info on here and around the net, But nothing conclusive.

My questions are...

Can I just connect both reds to the same driver output?
Series or Parallel?
Will one pull more than the other and cause problems?

Thanks in advanced.

udanis · 10-11-2010, 07:41 PM

It will be best if you connect each diode to it's own driver.

mickatcol · 10-12-2010, 08:30 AM

yep. was thinking that would be the best thing to do.

Thanks.

Benm · 10-12-2010, 11:02 AM

Depends on the driver though - with linear drivers you can connect them in series, provided they are electrically isolated from eachother, and you have enough supply voltage to run them.

Paralel is also possible, but requires some small balancing resistors in case the diodes dont behave identically.

10-11-2010, 07:14 PM	#1
mickatcol Junior Member Join Date: May 2010 Location: England Posts: 17 Rep Power: 0	Dual RED Driver questions Hi all. I am building my first dual red laser. I have a Die4drive Driver and using analogue modulation. My required output current is 350mA on each diode. I have found some info on here and around the net, But nothing conclusive. My questions are... Can I just connect both reds to the same driver output? Series or Parallel? Will one pull more than the other and cause problems? Thanks in advanced. __________________ <--Mick-->

10-11-2010, 07:41 PM	#2
udanis Class 3R Laser Join Date: Aug 2010 Location: PA Posts: 1,131 Rep Power: 24	Re: Dual RED Driver questions It will be best if you connect each diode to it's own driver. __________________ Lasers: -405nm Ebay Pens -532nm 250mw Jet Laser PL-C -532nm O-like Cute 150mW -Z-Bolt 635nm ~5mw Website: Udanis.com

10-12-2010, 08:30 AM	#3
mickatcol Junior Member Join Date: May 2010 Location: England Posts: 17 Rep Power: 0	Re: Dual RED Driver questions yep. was thinking that would be the best thing to do. Thanks. __________________ <--Mick-->

10-12-2010, 11:02 AM	#4
Benm Class 4 Laser Join Date: Aug 2007 Location: Netherlands Posts: 5,307 Rep Power: 188	Re: Dual RED Driver questions Depends on the driver though - with linear drivers you can connect them in series, provided they are electrically isolated from eachother, and you have enough supply voltage to run them. Paralel is also possible, but requires some small balancing resistors in case the diodes dont behave identically. __________________ Ask a Scientist <- Soon! Ben's Electronics Projects ScienceFlicks Science Videos <- Have a look

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode